Extract files to a particular directory via "borgmatic extract --destination" flag. Also rename "--restore-path" to "--path" to reduce confusion.

https://yaml.org/spec/1.2/spec.html#id2780069

.dockerignore

@@ -0,0 +1,2 @@
+.git
+.tox

.drone.yml

@@ -0,0 +1,57 @@
+---
+kind: pipeline
+name: python-3-5-alpine-3-10
+
+steps:
+- name: build
+  image: python:3.5-alpine3.10
+  pull: always
+  commands:
+    - scripts/run-tests
+---
+kind: pipeline
+name: python-3-6-alpine-3-10
+
+steps:
+- name: build
+  image: python:3.6-alpine3.10
+  pull: always
+  commands:
+    - scripts/run-tests
+---
+kind: pipeline
+name: python-3-7-alpine-3-10
+
+steps:
+- name: build
+  image: python:3.7-alpine3.10
+  pull: always
+  commands:
+    - scripts/run-tests
+---
+kind: pipeline
+name: python-3-7-alpine-3-7
+
+steps:
+- name: build
+  image: python:3.7-alpine3.7
+  pull: always
+  commands:
+    - scripts/run-tests
+---
+kind: pipeline
+name: documentation
+
+steps:
+- name: build
+  image: plugins/docker
+  settings:
+    username:
+      from_secret: docker_username
+    password:
+      from_secret: docker_password
+    repo: witten/borgmatic-docs
+    dockerfile: docs/Dockerfile
+  when:
+    branch:
+      - master

.eleventy.js

@@ -0,0 +1,42 @@
+const pluginSyntaxHighlight = require("@11ty/eleventy-plugin-syntaxhighlight");
+const inclusiveLangPlugin = require("@11ty/eleventy-plugin-inclusive-language");
+
+module.exports = function(eleventyConfig) {
+    eleventyConfig.addPlugin(pluginSyntaxHighlight);
+    eleventyConfig.addPlugin(inclusiveLangPlugin);
+
+    let markdownIt = require("markdown-it");
+    let markdownItAnchor = require("markdown-it-anchor");
+    let markdownItReplaceLink = require("markdown-it-replace-link");
+
+    let markdownItOptions = {
+        html: true,
+        breaks: false,
+        linkify: true,
+        replaceLink: function (link, env) {
+            if (process.env.NODE_ENV == "production") {
+                return link;
+            }
+            return link.replace('https://torsion.org/borgmatic/', 'http://localhost:8080/');
+        }
+    };
+    let markdownItAnchorOptions = {
+        permalink: true,
+        permalinkClass: "direct-link"
+    };
+
+    eleventyConfig.setLibrary(
+        "md",
+        markdownIt(markdownItOptions)
+            .use(markdownItAnchor, markdownItAnchorOptions)
+            .use(markdownItReplaceLink)
+    );
+
+    return {
+        templateFormats: [
+          "md",
+          "txt"
+        ]
+    }
+};
+

.gitea/issue_template.md

@@ -0,0 +1,31 @@
+#### What I'm trying to do and why
+
+#### Steps to reproduce (if a bug)
+
+Include (sanitized) borgmatic configuration files if applicable.
+
+#### Actual behavior (if a bug)
+
+Include (sanitized) `--verbosity 2` output if applicable.
+
+#### Expected behavior (if a bug)
+
+#### Other notes / implementation ideas
+
+#### Environment
+
+**borgmatic version:** [version here]
+
+Use `sudo borgmatic --version` or `sudo pip show borgmatic | grep ^Version`
+
+**borgmatic installation method:** [e.g., Debian package, Docker container, etc.]
+
+**Borg version:** [version here]
+
+Use `sudo borg --version`
+
+**Python version:** [version here]
+
+Use `python3 --version`
+
+**operating system and version:** [OS here]

.gitignore

@@ -0,0 +1,11 @@
+*.egg-info
+*.pyc
+*.swp
+.cache
+.coverage
+.pytest_cache
+.tox
+__pycache__
+build/
+dist/
+pip-wheel-metadata/

.hgignore

@@ -1,4 +0,0 @@
-syntax: glob
-*.egg-info
-*.pyc
-*.swp

AUTHORS

@@ -1,4 +1,12 @@
 Dan Helfman <witten@torsion.org>: Main developer
 
 Alexander Görtz: Python 3 compatibility
+Florian Lindner: Logging rewrite
 Henning Schroeder: Copy editing
+Johannes Feichtner: Support for user hooks
+Michele Lazzeri: Custom archive names
+Nick Whyte: Support prefix filtering for archive consistency checks
+newtonne: Read encryption password from external file
+Robin `ypid` Schneider: Support additional options of Borg and add validate-borgmatic-config command
+Scott Squires: Custom archive names
+Thomas LÉVEIL: Support for a keep_minutely prune option. Support for the --json option

MANIFEST.in

@@ -0,0 +1,2 @@
+include borgmatic/config/schema.yaml
+graft sample/systemd

NEWS

@@ -1,3 +1,477 @@
+1.4.2
+ * Extract files to a particular directory via "borgmatic extract --destination" flag.
+ * Rename "borgmatic extract --restore-path" flag to "--path" to reduce confusion with the separate
+   "borgmatic restore" action. Any uses of "--restore-path" will continue working.
+
+1.4.1
+ * #229: Restore backed up PostgreSQL databases via "borgmatic restore" action. See the
+   documentation for more information:
+   https://torsion.org/borgmatic/docs/how-to/backup-your-databases/
+ * Documentation on how to develop borgmatic's documentation:
+   https://torsion.org/borgmatic/docs/how-to/develop-on-borgmatic/#documentation-development
+
+1.4.0
+ * #225: Database dump hooks for PostgreSQL, so you can easily dump your databases before backups
+   run.
+ * #230: Rename "borgmatic list --pattern-from" flag to "--patterns-from" to match Borg.
+
+1.3.26
+ * #224: Fix "borgmatic list --successful" with a slightly better heuristic for listing successful
+   (non-checkpoint) archives.
+
+1.3.25
+ * #223: Dead man's switch to detect when backups start failing silently, implemented via
+   healthchecks.io hook integration. See the documentation for more information:
+   https://torsion.org/borgmatic/docs/how-to/monitor-your-backups/#healthchecks-hook
+ * Documentation on monitoring and alerting options for borgmatic backups:
+   https://torsion.org/borgmatic/docs/how-to/monitor-your-backups/
+ * Automatically rewrite links when developing on documentation locally.
+
+1.3.24
+ * #86: Add "borgmatic list --successful" flag to only list successful (non-checkpoint) archives.
+ * Add a suggestion form to all documentation pages, so users can submit ideas for improving the
+   documentation.
+ * Update documentation link to community Arch Linux borgmatic package.
+
+1.3.23
+ * #174: More detailed error alerting via runtime context available in "on_error" hook.
+
+1.3.22
+ * #144: When backups to one of several repositories fails, keep backing up to the other
+   repositories and report errors afterwards.
+
+1.3.21
+ * #192: User-defined hooks for global setup or cleanup that run before/after all actions. See the
+   documentation for more information:
+   https://torsion.org/borgmatic/docs/how-to/add-preparation-and-cleanup-steps-to-backups/
+
+1.3.20
+ * #205: More robust sample systemd service: boot delay, network dependency, lowered CPU/IO
+   priority, etc.
+ * #221: Fix "borgmatic create --progress" output so that it updates on the console in real-time.
+
+1.3.19
+ * #219: Fix visibility of "borgmatic prune --stats" output.
+
+1.3.18
+ * #220: Fix regression of argument parsing for default actions.
+
+1.3.17
+ * #217: Fix error with "borgmatic check --only" command-line flag with "extract" consistency check.
+
+1.3.16
+ * #210: Support for Borg check --verify-data flag via borgmatic "data" consistency check.
+ * #210: Override configured consistency checks via "borgmatic check --only" command-line flag.
+ * When generating sample configuration with generate-borgmatic-config, add a space after each "#"
+   comment indicator.
+
+1.3.15
+ * #208: Fix for traceback when the "checks" option has an empty value.
+ * #209: Bypass Borg error about a moved repository via "relocated_repo_access_is_ok" option in
+   borgmatic storage configuration section.
+ * #213: Reorder arguments passed to Borg to fix duplicate directories when using Borg patterns.
+ * #214: Fix for hook erroring with exit code 1 not being interpreted as an error.
+
+1.3.14
+ * #204: Do not treat Borg warnings (exit code 1) as failures.
+ * When validating configuration files, require strings instead of allowing any scalar type.
+
+1.3.13
+ * #199: Add note to documentation about using spaces instead of tabs for indentation, as YAML does
+   not allow tabs.
+ * #203: Fix compatibility with ruamel.yaml 0.16.x.
+ * If a "prefix" option in borgmatic's configuration has an empty value (blank or ""), then disable
+   default prefix.
+
+1.3.12
+ * Only log to syslog when run from a non-interactive console (e.g. a cron job).
+ * Remove unicode byte order mark from syslog output so it doesn't show up as a literal in rsyslog
+   output. See discussion on #197.
+
+1.3.11
+ * #193: Pass through several "borg list" and "borg info" flags like --short, --format, --sort-by,
+   --first, --last, etc. via borgmatic command-line flags.
+ * Add borgmatic info --repository and --archive command-line flags to display info for individual
+   repositories or archives.
+ * Support for Borg --noatime, --noctime, and --nobirthtime flags via corresponding options in
+   borgmatic configuration location section.
+
+1.3.10
+ * #198: Fix for Borg create error output not showing up at borgmatic verbosity level zero.
+
+1.3.9
+ * #195: Switch to command-line actions as more traditional sub-commands, e.g. "borgmatic create",
+   "borgmatic prune", etc. However, the classic dashed options like "--create" still work!
+
+1.3.8
+ * #191: Disable console color via "color" option in borgmatic configuration output section.
+
+1.3.7
+ * #196: Fix for unclear error message for invalid YAML merge include.
+ * #197: Don't color syslog output.
+ * Change default syslog verbosity to show errors only.
+
+1.3.6
+ * #53: Log to syslog in addition to existing console logging. Add --syslog-verbosity flag to
+   customize the log level. See the documentation for more information:
+   https://torsion.org/borgmatic/docs/how-to/inspect-your-backups/
+ * #178: Look for .yml configuration file extension in addition to .yaml.
+ * #189: Set umask used when executing hooks via "umask" option in borgmatic hooks section.
+ * Remove Python cache files before each Tox run.
+ * Add #borgmatic Freenode IRC channel to documentation.
+ * Add Borg/borgmatic hosting providers section to documentation.
+ * Add files for building documentation into a Docker image for web serving.
+ * Upgrade project build server from Drone 0.8 to 1.1.
+ * Build borgmatic documentation during continuous integration.
+ * We're nearly at 500 ★s on GitHub. We can do this!
+
+1.3.5
+ * #153: Support for various Borg directory environment variables (BORG_CONFIG_DIR, BORG_CACHE_DIR,
+   etc.) via options in borgmatic's storage configuration.
+ * #177: Fix for regression with missing verbose log entries.
+
+1.3.4
+ * Part of #125: Color borgmatic (but not Borg) output when using an interactive terminal.
+ * #166: Run tests for all installed versions of Python.
+ * #168: Update README with continuous integration badge.
+ * #169: Automatically sort Python imports in code.
+ * Document installing borgmatic with pip install --user instead of a system Python install.
+ * Get more reproducible builds by pinning the versions of pip and tox used to run tests.
+ * Factor out build/test configuration from tox.ini file.
+
+1.3.3
+ * Add validate-borgmatic-config command, useful for validating borgmatic config generated by
+   configuration management or even edited by hand.
+
+1.3.2
+ * #160: Fix for hooks executing when using --dry-run. Now hooks are skipped during a dry run.
+
+1.3.1
+ * #155: Fix for invalid JSON output when using multiple borgmatic configuration files.
+ * #157: Fix for seemingly random filename ordering when running through a directory of
+   configuration files.
+ * Fix for empty JSON output when using --create --json.
+ * Now capturing Borg output only when --json flag is used. Previously, borgmatic delayed Borg
+   output even without the --json flag.
+
+1.3.0
+ * #148: Configuration file includes and merging via "!include" tag to support reuse of common
+   options across configuration files.
+
+1.2.18
+ * #147: Support for Borg create/extract --numeric-owner flag via "numeric_owner" option in
+   borgmatic's location section.
+
+1.2.17
+ * #140: List the files within an archive via --list --archive option.
+
+1.2.16
+ * #119: Include a sample borgmatic configuration file in the documentation.
+ * #123: Support for Borg archive restoration via borgmatic --extract command-line flag.
+ * Refactor documentation into multiple separate pages for clarity and findability.
+ * Organize options within command-line help into logical groups.
+ * Exclude tests from distribution packages.
+
+1.2.15
+ * #127: Remove date echo from schema example, as it's not a substitute for real logging.
+ * #132: Leave exclude_patterns glob expansion to Borg, since doing it in borgmatic leads to
+   confusing behavior.
+ * #136: Handle and format validation errors raised during argument parsing.
+ * #138: Allow use of --stats flag when --create or --prune flags are implied.
+
+1.2.14
+ * #103: When generating sample configuration with generate-borgmatic-config, document the defaults
+   for each option.
+ * #116: When running multiple configuration files, attempt all configuration files even if one of
+   them errors. Log a summary of results at the end.
+ * Add borgmatic --version command-line flag to get the current installed version number.
+
+1.2.13
+ * #100: Support for --stats command-line flag independent of --verbosity.
+ * #117: With borgmatic --init command-line flag, proceed without erroring if a repository already
+   exists.
+
+1.2.12
+ * #110: Support for Borg repository initialization via borgmatic --init command-line flag.
+ * #111: Update Borg create --filter values so a dry run lists files to back up.
+ * #113: Update README with link to a new/forked Docker image.
+ * Prevent deprecated --excludes command-line option from being used.
+ * Refactor README a bit to flow better for first-time users.
+ * Update README with a few additional borgmatic packages (Debian and Ubuntu).
+
+1.2.11
+ * #108: Support for Borg create --progress via borgmatic command-line flag.
+
+1.2.10
+ * #105: Support for Borg --chunker-params create option via "chunker_params" option in borgmatic's
+   storage section.
+
+1.2.9
+ * #102: Fix for syntax error that occurred in Python 3.5 and below.
+ * Make automated tests support running in Python 3.5.
+
+1.2.8
+ * #73: Enable consistency checks for only certain repositories via "check_repositories" option in
+   borgmatic's consistency configuration. Handy for large repositories that take forever to check.
+ * Include link to issue tracker within various command output.
+ * Run continuous integration tests on a matrix of Python and Borg versions.
+
+1.2.7
+ * #98: Support for Borg --keep-secondly prune option.
+ * Use Black code formatter and Flake8 code checker as part of running automated tests.
+ * Add an end-to-end automated test that actually integrates with Borg.
+ * Set up continuous integration for borgmatic automated tests on projects.evoworx.org.
+
+1.2.6
+ * Fix generated configuration to also include a "keep_daily" value so pruning works out of the
+   box.
+
+1.2.5
+ * #57: When generating sample configuration with generate-borgmatic-config, comment out all
+   optional configuration so as to streamline the initial configuration process.
+
+1.2.4
+ * Fix for archive checking traceback due to parameter mismatch.
+
+1.2.3
+ * #64, #90, #92: Rewrite of logging system. Now verbosity flags passed to Borg are derived from
+   borgmatic's log level. Note that the output of borgmatic might slightly change.
+ * Part of #80: Support for Borg create --read-special via "read_special" option in borgmatic's
+   location configuration.
+ * #87: Support for Borg create --checkpoint-interval via "checkpoint_interval" option in
+   borgmatic's storage configuration.
+ * #88: Fix declared pykwalify compatibility version range in setup.py to prevent use of ancient
+   versions of pykwalify with large version numbers.
+ * #89: Pass --show-rc option to Borg when at highest verbosity level.
+ * #94: Support for Borg --json option via borgmatic command-line to --create archives.
+
+1.2.2
+ * #85: Fix compatibility issue between pykwalify and ruamel.yaml 0.15.52, which manifested in
+   borgmatic as a pykwalify RuleError.
+
+1.2.1
+ * Skip before/after backup hooks when only doing --prune, --check, --list, and/or --info.
+ * #71: Support for XDG_CONFIG_HOME environment variable for specifying alternate user ~/.config/
+   path.
+ * #74, #83: Support for Borg --json option via borgmatic command-line to --list archives or show
+   archive --info in JSON format, ideal for programmatic consumption.
+ * #38, #76: Upgrade ruamel.yaml compatibility version range and fix support for Python 3.7.
+ * #77: Skip non-"*.yaml" config filenames in /etc/borgmatic.d/ so as not to parse backup files,
+   editor swap files, etc.
+ * #81: Document user-defined hooks run before/after backup, or on error.
+ * Add code style guidelines to the documention.
+
+1.2.0
+ * #61: Support for Borg --list option via borgmatic command-line to list all archives.
+ * #61: Support for Borg --info option via borgmatic command-line to display summary information.
+ * #62: Update README to mention other ways of installing borgmatic.
+ * Support for Borg --prefix option for consistency checks via "prefix" option in borgmatic's
+   consistency configuration.
+ * Add introductory screencast link to documentation.
+ * #59: Ignore "check_last" and consistency "prefix" when "archives" not in consistency checks.
+ * #60: Add "Persistent" flag to systemd timer example.
+ * #63: Support for Borg --nobsdflags option to skip recording bsdflags (e.g. NODUMP, IMMUTABLE) in
+   archive.
+ * #69: Support for Borg prune --umask option using value of existing "umask" option in borgmatic's
+   storage configuration.
+ * Update tox.ini to only assume Python 3.x instead of Python 3.4 specifically.
+ * Add ~/.config/borgmatic/config.yaml to default configuration path probing.
+ * Document how to develop on and contribute to borgmatic.
+
+1.1.15
+ * Support for Borg BORG_PASSCOMMAND environment variable to read a password from an external file.
+ * Fix for Borg create error when using borgmatic's --dry-run and --verbosity options together.
+   Work-around for behavior introduced in Borg 1.1.3: https://github.com/borgbackup/borg/issues/3298
+ * #55: Fix for missing tags/releases on Gitea and GitHub project hosting.
+ * #56: Support for Borg --lock-wait option for the maximum wait for a repository/cache lock.
+ * #58: Support for using tilde in exclude_patterns to reference home directory.
+
+1.1.14
+ * #49: Fix for typo in --patterns-from option.
+ * #47: Support for Borg --dry-run option via borgmatic command-line.
+
+1.1.13
+ * #54: Fix for incorrect consistency check flags passed to Borg when all three checks ("repository",
+   "archives", and "extract") are specified in borgmatic configuration.
+ * #48: Add "local_path" to configuration for specifying an alternative Borg executable path.
+ * #49: Support for Borg experimental --patterns-from and --patterns options for specifying mixed
+   includes/excludes.
+ * Moved issue tracker from Taiga to integrated Gitea tracker at
+   https://projects.torsion.org/witten/borgmatic/issues
+
+1.1.12
+ * #46: Declare dependency on pykwalify 1.6 or above, as older versions yield "Unknown key: version"
+   rule errors.
+ * Support for Borg --keep-minutely prune option.
+
+1.1.11
+ * #26: Add "ssh_command" to configuration for specifying a custom SSH command or options.
+ * Fix for incorrect /etc/borgmatic.d/ configuration path probing on macOS. This problem manifested
+   as an error on startup: "[Errno 2] No such file or directory: '/etc/borgmatic.d'".
+
+1.1.10
+ * Pass several Unix signals through to child processes like Borg. This means that Borg now properly
+   shuts down if borgmatic is terminated (e.g. due to a system suspend).
+ * #30: Support for using tilde in repository paths to reference home directory.
+ * #43: Support for Borg --files-cache option for setting the files cache operation mode.
+ * #45: Support for Borg --remote-ratelimit option for limiting upload rate.
+ * Log invoked Borg commands when at highest verbosity level.
+
+1.1.9
+ * #17, #39: Support for user-defined hooks before/after backup, or on error.
+ * #34: Improve clarity of logging spew at high verbosity levels.
+ * #30: Support for using tilde in source directory path to reference home directory.
+ * Require "prefix" in retention section when "archive_name_format" is set. This is to avoid
+   accidental pruning of archives with a different archive name format. For similar reasons, default
+   "prefix" to "{hostname}-" if not specified.
+ * Convert main source repository from Mercurial to Git.
+ * Update dead links to Borg documentation.
+
+1.1.8
+ * #40: Fix to make /etc/borgmatic/config.yaml optional rather than required when using the default
+   config paths.
+
+1.1.7
+
+ * #29: Add "archive_name_format" to configuration for customizing archive names.
+ * Fix for traceback when "exclude_from" value is empty in configuration file.
+ * When pruning, make highest verbosity level list archives kept and pruned.
+ * Clarification of Python 3 pip usage in documentation.
+
+1.1.6
+
+ * #13, #36: Support for Borg --exclude-from, --exclude-caches, and --exclude-if-present options.
+
+1.1.5
+
+ * #35: New "extract" consistency check that performs a dry-run extraction of the most recent
+   archive.
+
+1.1.4
+
+ * #18: Added command-line flags for performing a borgmatic run with only pruning, creating, or
+   checking enabled. This supports use cases like running consistency checks from a different cron
+   job with a different frequency, or running pruning with a different verbosity level.
+
+1.1.3
+
+ * #15: Support for running multiple config files in /etc/borgmatic.d/ from a single borgmatic run.
+ * Fix for generate-borgmatic-config writing config with invalid one_file_system value.
+
+1.1.2
+
+ * #33: Fix for passing check_last as integer to subprocess when calling Borg.
+
+1.1.1
+
+ * Part of #33: Fix for upgrade-borgmatic-config converting check_last option as a string instead of
+   an integer.
+ * Fix for upgrade-borgmatic-config erroring when consistency checks option is not present.
+
+1.1.0
+
+ * Switched config file format to YAML. Run upgrade-borgmatic-config to upgrade.
+ * Added generate-borgmatic-config command for initial config creation.
+ * Dropped Python 2 support. Now Python 3 only.
+ * #19: Fix for README mention of sample files not included in package.
+ * #23: Sample files for triggering borgmatic from a systemd timer.
+ * Support for backing up to multiple repositories.
+ * To free up space, now pruning backups prior to creating a new backup.
+ * Enabled test coverage output during tox runs.
+ * Added logo.
+
+1.0.3
+
+ * #22: Fix for verbosity flag not actually causing verbose output.
+
+1.0.2
+
+ * #21: Fix for traceback when remote_path option is missing.
+
+1.0.1
+
+ * #20: Support for Borg's --remote-path option to use an alternate Borg
+   executable. See sample/config.
+
+1.0.0
+
+ * Attic is no longer supported, as there hasn't been any recent development on
+   it. Dropping Attic support will allow faster iteration on Borg-specific
+   features. If you're still using Attic, this is a good time to switch to Borg!
+ * Project renamed from atticmatic to borgmatic. See the borgmatic README for
+   information on upgrading.
+
+0.1.8
+
+ * Fix for handling of spaces in source_directories which resulted in backup up everything.
+ * Fix for broken links to Borg documentation.
+ * At verbosity zero, suppressing Borg check stderr spew about "Checking segments".
+ * Support for Borg --one-file-system.
+ * Support for Borg create --umask.
+ * Support for file globs in source_directories.
+
+0.1.7
+
+ * #12: Fixed parsing of punctuation in configuration file.
+ * Better error message when configuration file is missing.
+
+0.1.6
+
+ * #10: New configuration option for the encryption passphrase.
+ * #11: Support for Borg's new archive compression feature.
+
+0.1.5
+
+ * Changes to support release on PyPI. Now pip installable by name!
+
+0.1.4
+
+ * Adding test that setup.py version matches release version.
+
+0.1.3
+
+ * #2: Add support for "borg check --last N" to Borg backend.
+
+0.1.2
+
+ * As a convenience to new users, allow a missing default excludes file.
+ * New issue tracker, linked from documentation.
+
+0.1.1
+
+ * Adding borgmatic cron example, and updating documentation to refer to it.
+
+0.1.0
+
+ * New "borgmatic" command to support Borg backup software, a fork of Attic.
+
+0.0.7
+
+ * Flag for multiple levels of verbosity: some, and lots.
+ * Improved mocking of Python builtins in unit tests.
+
+0.0.6
+
+ * New configuration section for customizing which Attic consistency checks run, if any.
+
+0.0.5
+
+ * Fixed regression with --verbose output being buffered. This means dropping the helpful error
+   message introduced in 0.0.4.
+
+0.0.4
+
+ * Now using tox to run tests against multiple versions of Python in one go.
+ * Helpful error message about how to create a repository if one is missing.
+ * Troubleshooting section with steps to deal with broken pipes.
+ * Nosetests config file (setup.cfg) with defaults.
+
+0.0.3
+
+ * After pruning, run attic's consistency checks on all archives.
+ * Integration tests for argument parsing.
+ * Documentation updates about repository encryption.
+
 0.0.2
 
  * Configuration support for additional attic prune flags: keep_within, keep_hourly, keep_yearly,

README.md

@@ -1,91 +1,128 @@
-title: Atticmatic
-date:
-save_as: atticmatic/index.html
+---
+title: borgmatic
+permalink: index.html
+---
+<a href="https://build.torsion.org/witten/borgmatic" alt="build status">![Build Status](https://build.torsion.org/api/badges/witten/borgmatic/status.svg?ref=refs/heads/master)</a>
 
 ## Overview
 
-atticmatic is a simple Python wrapper script for the [Attic backup
-software](https://attic-backup.org/) that initiates a backup and prunes any
-old backups according to a retention policy. The script supports specifying
-your settings in a declarative configuration file rather than having to put
+<img src="https://projects.torsion.org/witten/borgmatic/raw/branch/master/static/borgmatic.png" alt="borgmatic logo" width="150px" style="float: right; padding-left: 1em;">
+
+borgmatic is simple, configuration-driven backup software for servers and
+workstations. Backup all of your machines from the command-line or scheduled
+jobs. No GUI required. Built atop [Borg Backup](https://www.borgbackup.org/),
+borgmatic initiates a backup, prunes any old backups according to a retention
+policy, and validates backups for consistency. borgmatic supports specifying
+your settings in a declarative configuration file, rather than having to put
 them all on the command-line, and handles common errors.
 
 Here's an example config file:
 
-    [location]
-    # Space-separated list of source directories to backup.
-    source_directories: /home /etc
+```yaml
+location:
+    # List of source directories to backup. Globs are expanded.
+    source_directories:
+        - /home
+        - /etc
+        - /var/log/syslog*
 
-    # Path to local or remote Attic repository.
-    repository: user@backupserver:sourcehostname.attic
+    # Paths to local or remote repositories.
+    repositories:
+        - user@backupserver:sourcehostname.borg
 
-    [retention]
+    # Any paths matching these patterns are excluded from backups.
+    exclude_patterns:
+        - /home/*/.cache
+
+retention:
     # Retention policy for how many backups to keep in each category.
     keep_daily: 7
     keep_weekly: 4
     keep_monthly: 6
 
-Additionally, exclude patterns can be specified in a separate excludes config
-file, one pattern per line.
+consistency:
+    # List of consistency checks to run: "repository", "archives", etc.
+    checks:
+        - repository
+        - archives
 
-atticmatic is hosted at <https://torsion.org/atticmatic> with [source code
-available](https://torsion.org/hg/atticmatic). It's also mirrored on
-[GitHub](https://github.com/witten/atticmatic) and
-[BitBucket](https://bitbucket.org/dhelfman/atticmatic) for convenience.
+hooks:
+    # Preparation scripts to run, databases to dump, and monitoring to perform.
+    before_backup:
+        - prepare-for-backup.sh
+    postgresql_databases:
+        - name: users
+    healthchecks: https://hc-ping.com/be067061-cf96-4412-8eae-62b0c50d6a8c
+```
+
+borgmatic is hosted at <https://torsion.org/borgmatic> with [source code
+available](https://projects.torsion.org/witten/borgmatic). It's also mirrored
+on [GitHub](https://github.com/witten/borgmatic) for convenience.
+
+Want to see borgmatic in action? Check out the <a
+href="https://asciinema.org/a/203761" target="_blank">screencast</a>.
+
+<script src="https://asciinema.org/a/203761.js" id="asciicast-203761" async></script>
 
 
-## Setup
+## How-to guides
 
-To get up and running with Attic, follow the [Attic Quick
-Start](https://attic-backup.org/quickstart.html) guide to create an Attic
-repository on a local or remote host.
-
-If the repository is on a remote host, make sure that your local root user has
-key-based ssh access to the desired user account on the remote host.
-
-To install atticmatic, run the following command to download and install it:
-
-    sudo pip install hg+https://torsion.org/hg/atticmatic
-
-Then copy the following configuration files:
-
-    sudo cp sample/atticmatic.cron /etc/cron.d/atticmatic
-    sudo mkdir /etc/atticmatic/
-    sudo cp sample/config sample/excludes /etc/atticmatic/
-
-Lastly, modify those files with your desired configuration.
+ * [Set up backups with borgmatic](https://torsion.org/borgmatic/docs/how-to/set-up-backups/) ⬅ *Start here!*
+ * [Make per-application backups](https://torsion.org/borgmatic/docs/how-to/make-per-application-backups/)
+ * [Deal with very large backups](https://torsion.org/borgmatic/docs/how-to/deal-with-very-large-backups/)
+ * [Inspect your backups](https://torsion.org/borgmatic/docs/how-to/inspect-your-backups/)
+ * [Monitor your backups](https://torsion.org/borgmatic/docs/how-to/monitor-your-backups/)
+ * [Extract a backup](https://torsion.org/borgmatic/docs/how-to/extract-a-backup/)
+ * [Backup your databases](https://torsion.org/borgmatic/docs/how-to/backup-your-databases/)
+ * [Add preparation and cleanup steps to backups](https://torsion.org/borgmatic/docs/how-to/add-preparation-and-cleanup-steps-to-backups/)
+ * [Upgrade borgmatic](https://torsion.org/borgmatic/docs/how-to/upgrade/)
+ * [Develop on borgmatic](https://torsion.org/borgmatic/docs/how-to/develop-on-borgmatic/)
 
 
-## Usage
+## Reference guides
 
-You can run atticmatic and start a backup simply by invoking it without
-arguments:
-
-    atticmatic
-
-This will also prune any old backups as per the configured retention policy.
-By default, the backup will proceed silently except in the case of errors. But
-if you'd like to to get additional information about the progress of the
-backup as it proceeds, use the verbose option instead:
-
-    atticmattic --verbose
-
-If you'd like to see the available command-line arguments, view the help:
-
-    atticmattic --help
+ * [borgmatic configuration reference](https://torsion.org/borgmatic/docs/reference/configuration/)
+ * [borgmatic command-line reference](https://torsion.org/borgmatic/docs/reference/command-line/)
 
 
-## Running tests
+## Hosting providers
 
-To install test-specific dependencies, first run:
+Need somewhere to store your encrypted offsite backups? The following hosting
+providers include specific support for Borg/borgmatic. Using these links and
+services helps support borgmatic development and hosting. (These are referral
+links, but without any tracking scripts or cookies.)
 
-    sudo python setup.py test
+<ul>
+ <li class="referral"><a href="https://www.rsync.net/cgi-bin/borg.cgi?campaign=borg&adgroup=borgmatic">rsync.net</a>: Cloud Storage provider with full support for borg and any other SSH/SFTP tool</li>
+ <li class="referral"><a href="https://www.borgbase.com/?utm_source=borgmatic">BorgBase</a>: Borg hosting service with support for monitoring, 2FA, and append-only repos</li>
+</ul>
 
-To actually run tests, run:
+## Support and contributing
 
-    nosetests --detailed-errors
+### Issues
+
+You've got issues? Or an idea for a feature enhancement? We've got an [issue
+tracker](https://projects.torsion.org/witten/borgmatic/issues). In order to
+create a new issue or comment on an issue, you'll need to [login
+first](https://projects.torsion.org/user/login). Note that you can login with
+an existing GitHub account if you prefer.
+
+If you'd like to chat with borgmatic developers or users, head on over to the
+`#borgmatic` IRC channel on Freenode, either via <a
+href="https://webchat.freenode.net/?channels=borgmatic">web chat</a> or a
+native <a href="irc://chat.freenode.net:6697">IRC client</a>.
+
+Other questions or comments? Contact <mailto:witten@torsion.org>.
 
 
-## Feedback
+### Contributing
 
-Questions? Comments? Got a patch? Contact <mailto:witten@torsion.org>.
+If you'd like to contribute to borgmatic development, please feel free to
+submit a [Pull Request](https://projects.torsion.org/witten/borgmatic/pulls)
+or open an [issue](https://projects.torsion.org/witten/borgmatic/issues) first
+to discuss your idea. We also accept Pull Requests on GitHub, if that's more
+your thing. In general, contributions are very welcome. We don't bite! 
+
+Also, please check out the [borgmatic development
+how-to](https://torsion.org/borgmatic/docs/how-to/develop-on-borgmatic/) for
+info on cloning source code, running tests, etc.

atticmatic/attic.py

@@ -1,65 +0,0 @@
-from datetime import datetime
-
-import platform
-import subprocess
-
-
-def create_archive(excludes_filename, verbose, source_directories, repository):
-    '''
-    Given an excludes filename, a vebosity flag, a space-separated list of source directories, and
-    a local or remote repository path, create an attic archive.
-    '''
-    sources = tuple(source_directories.split(' '))
-
-    command = (
-        'attic', 'create',
-        '--exclude-from', excludes_filename,
-        '{repo}::{hostname}-{timestamp}'.format(
-            repo=repository,
-            hostname=platform.node(),
-            timestamp=datetime.now().isoformat(),
-        ),
-    ) + sources + (
-        ('--verbose', '--stats') if verbose else ()
-    )
-
-    subprocess.check_call(command)
-
-
-def make_prune_flags(retention_config):
-    '''
-    Given a retention config dict mapping from option name to value, tranform it into an iterable of
-    command-line name-value flag pairs.
-
-    For example, given a retention config of:
-
-        {'keep_weekly': 4, 'keep_monthly': 6}
-
-    This will be returned as an iterable of:
-
-        (
-            ('--keep-weekly', '4'),
-            ('--keep-monthly', '6'),
-        )
-    '''
-    return (
-        ('--' + option_name.replace('_', '-'), str(retention_config[option_name]))
-        for option_name, value in retention_config.items()
-    )
-
-
-def prune_archives(verbose, repository, retention_config):
-    '''
-    Given a verbosity flag, a local or remote repository path, and a retention config dict, prune
-    attic archives according the the retention policy specified in that configuration.
-    '''
-    command = (
-        'attic', 'prune',
-        repository,
-    ) + tuple(
-        element
-        for pair in make_prune_flags(retention_config)
-        for element in pair
-    ) + (('--verbose',) if verbose else ())
-
-    subprocess.check_call(command)

atticmatic/command.py

@@ -1,45 +0,0 @@
-from __future__ import print_function
-from argparse import ArgumentParser
-from subprocess import CalledProcessError
-import sys
-
-from atticmatic.attic import create_archive, prune_archives
-from atticmatic.config import parse_configuration
-
-
-def parse_arguments():
-    '''
-    Parse the command-line arguments from sys.argv and return them as an ArgumentParser instance.
-    '''
-    parser = ArgumentParser()
-    parser.add_argument(
-        '-c', '--config',
-        dest='config_filename',
-        default='/etc/atticmatic/config',
-        help='Configuration filename',
-    )
-    parser.add_argument(
-        '--excludes',
-        dest='excludes_filename',
-        default='/etc/atticmatic/excludes',
-        help='Excludes filename',
-    )
-    parser.add_argument(
-        '-v', '--verbose',
-        action='store_true',
-        help='Display verbose progress information',
-    )
-
-    return parser.parse_args()
-
-
-def main():
-    try:
-        args = parse_arguments()
-        location_config, retention_config = parse_configuration(args.config_filename)
-
-        create_archive(args.excludes_filename, args.verbose, **location_config)
-        prune_archives(args.verbose, location_config['repository'], retention_config)
-    except (ValueError, IOError, CalledProcessError) as error:
-        print(error, file=sys.stderr)
-        sys.exit(1)

atticmatic/config.py

@@ -1,128 +0,0 @@
-from collections import OrderedDict, namedtuple
-
-try:
-    # Python 2
-    from ConfigParser import ConfigParser
-except ImportError:
-    # Python 3
-    from configparser import ConfigParser
-
-
-Section_format = namedtuple('Section_format', ('name', 'options'))
-Config_option = namedtuple('Config_option', ('name', 'value_type', 'required'))
-
-
-def option(name, value_type=str, required=True):
-    '''
-    Given a config file option name, an expected type for its value, and whether it's required,
-    return a Config_option capturing that information.
-    '''
-    return Config_option(name, value_type, required)
-
-
-CONFIG_FORMAT = (
-    Section_format(
-        'location',
-        (
-            option('source_directories'),
-            option('repository'),
-        ),
-    ),
-    Section_format(
-        'retention',
-        (
-            option('keep_within', required=False),
-            option('keep_hourly', int, required=False),
-            option('keep_daily', int, required=False),
-            option('keep_weekly', int, required=False),
-            option('keep_monthly', int, required=False),
-            option('keep_yearly', int, required=False),
-            option('prefix', required=False),
-        ),
-    )
-)
-
-
-def validate_configuration_format(parser, config_format):
-    '''
-    Given an open ConfigParser and an expected config file format, validate that the parsed
-    configuration file has the expected sections, that any required options are present in those
-    sections, and that there aren't any unexpected options.
-
-    Raise ValueError if anything is awry.
-    '''
-    section_names = parser.sections()
-    required_section_names = tuple(section.name for section in config_format)
-
-    if set(section_names) != set(required_section_names):
-        raise ValueError(
-            'Expected config sections {} but found sections: {}'.format(
-                ', '.join(required_section_names),
-                ', '.join(section_names)
-            )
-        )
-
-    for section_format in config_format:
-        option_names = parser.options(section_format.name)
-        expected_options = section_format.options
-
-        unexpected_option_names = set(option_names) - set(option.name for option in expected_options)
-
-        if unexpected_option_names:
-            raise ValueError(
-                'Unexpected options found in config section {}: {}'.format(
-                    section_format.name,
-                    ', '.join(sorted(unexpected_option_names)),
-                )
-            )
-
-        missing_option_names = tuple(
-            option.name for option in expected_options if option.required
-            if option.name not in option_names
-        )
-
-        if missing_option_names:
-            raise ValueError(
-                'Required options missing from config section {}: {}'.format(
-                    section_format.name,
-                    ', '.join(missing_option_names)
-                )
-            )
-
-
-def parse_section_options(parser, section_format):
-    '''
-    Given an open ConfigParser and an expected section format, return the option values from that
-    section as a dict mapping from option name to value. Omit those options that are not present in
-    the parsed options.
-
-    Raise ValueError if any option values cannot be coerced to the expected Python data type.
-    '''
-    type_getter = {
-        str: parser.get,
-        int: parser.getint,
-    }
-
-    return OrderedDict(
-        (option.name, type_getter[option.value_type](section_format.name, option.name))
-        for option in section_format.options
-        if parser.has_option(section_format.name, option.name)
-    )
-
-
-def parse_configuration(config_filename):
-    '''
-    Given a config filename of the expected format, return the parsed configuration as a tuple of
-    (location config, retention config) where each config is a dict of that section's options.
-
-    Raise IOError if the file cannot be read, or ValueError if the format is not as expected.
-    '''
-    parser = ConfigParser()
-    parser.readfp(open(config_filename))
-
-    validate_configuration_format(parser, CONFIG_FORMAT)
-
-    return tuple(
-        parse_section_options(parser, section_format)
-        for section_format in CONFIG_FORMAT
-    )

atticmatic/tests/unit/test_attic.py

@@ -1,113 +0,0 @@
-from collections import OrderedDict
-
-from flexmock import flexmock
-
-from atticmatic import attic as module
-
-
-def insert_subprocess_mock(check_call_command):
-    subprocess = flexmock()
-    subprocess.should_receive('check_call').with_args(check_call_command).once()
-    flexmock(module).subprocess = subprocess
-
-
-def insert_platform_mock():
-    flexmock(module).platform = flexmock().should_receive('node').and_return('host').mock
-
-
-def insert_datetime_mock():
-    flexmock(module).datetime = flexmock().should_receive('now').and_return(
-        flexmock().should_receive('isoformat').and_return('now').mock
-    ).mock
-
-
-def test_create_archive_should_call_attic_with_parameters():
-    insert_subprocess_mock(
-        ('attic', 'create', '--exclude-from', 'excludes', 'repo::host-now', 'foo', 'bar'),
-    )
-    insert_platform_mock()
-    insert_datetime_mock()
-
-    module.create_archive(
-        excludes_filename='excludes',
-        verbose=False,
-        source_directories='foo bar',
-        repository='repo',
-    )
-
-
-def test_create_archive_with_verbose_should_call_attic_with_verbose_parameters():
-    insert_subprocess_mock(
-        (
-            'attic', 'create', '--exclude-from', 'excludes', 'repo::host-now', 'foo', 'bar',
-            '--verbose', '--stats',
-        ),
-    )
-    insert_platform_mock()
-    insert_datetime_mock()
-
-    module.create_archive(
-        excludes_filename='excludes',
-        verbose=True,
-        source_directories='foo bar',
-        repository='repo',
-    )
-
-
-BASE_PRUNE_FLAGS = (
-    ('--keep-daily', '1'),
-    ('--keep-weekly', '2'),
-    ('--keep-monthly', '3'),
-)
-
-
-def test_make_prune_flags_should_return_flags_from_config():
-    retention_config = OrderedDict(
-        (
-            ('keep_daily', 1),
-            ('keep_weekly', 2),
-            ('keep_monthly', 3),
-        )
-    )
-
-    result = module.make_prune_flags(retention_config)
-
-    assert tuple(result) == BASE_PRUNE_FLAGS
-
-
-def test_prune_archives_should_call_attic_with_parameters():
-    retention_config = flexmock()
-    flexmock(module).should_receive('make_prune_flags').with_args(retention_config).and_return(
-        BASE_PRUNE_FLAGS,
-    )
-    insert_subprocess_mock(
-        (
-            'attic', 'prune', 'repo', '--keep-daily', '1', '--keep-weekly', '2', '--keep-monthly',
-            '3',
-        ),
-    )
-
-    module.prune_archives(
-        verbose=False,
-        repository='repo',
-        retention_config=retention_config,
-    )
-
-
-def test_prune_archives_with_verbose_should_call_attic_with_verbose_parameters():
-    retention_config = flexmock()
-    flexmock(module).should_receive('make_prune_flags').with_args(retention_config).and_return(
-        BASE_PRUNE_FLAGS,
-    )
-    insert_subprocess_mock(
-        (
-            'attic', 'prune', 'repo', '--keep-daily', '1', '--keep-weekly', '2', '--keep-monthly',
-            '3', '--verbose',
-        ),
-    )
-
-    module.prune_archives(
-        repository='repo',
-        verbose=True,
-        retention_config=retention_config,
-    )

borgmatic/borg/check.py

@@ -0,0 +1,132 @@
+import logging
+
+from borgmatic.borg import extract
+from borgmatic.execute import execute_command
+
+DEFAULT_CHECKS = ('repository', 'archives')
+DEFAULT_PREFIX = '{hostname}-'
+
+
+logger = logging.getLogger(__name__)
+
+
+def _parse_checks(consistency_config, only_checks=None):
+    '''
+    Given a consistency config with a "checks" list, and an optional list of override checks,
+    transform them a tuple of named checks to run.
+
+    For example, given a retention config of:
+
+        {'checks': ['repository', 'archives']}
+
+    This will be returned as:
+
+        ('repository', 'archives')
+
+    If no "checks" option is present in the config, return the DEFAULT_CHECKS. If the checks value
+    is the string "disabled", return an empty tuple, meaning that no checks should be run.
+
+    If the "data" option is present, then make sure the "archives" option is included as well.
+    '''
+    checks = [
+        check.lower() for check in (only_checks or consistency_config.get('checks', []) or [])
+    ]
+    if checks == ['disabled']:
+        return ()
+
+    if 'data' in checks and 'archives' not in checks:
+        checks.append('archives')
+
+    return tuple(check for check in checks if check not in ('disabled', '')) or DEFAULT_CHECKS
+
+
+def _make_check_flags(checks, check_last=None, prefix=None):
+    '''
+    Given a parsed sequence of checks, transform it into tuple of command-line flags.
+
+    For example, given parsed checks of:
+
+        ('repository',)
+
+    This will be returned as:
+
+        ('--repository-only',)
+
+    However, if both "repository" and "archives" are in checks, then omit them from the returned
+    flags because Borg does both checks by default.
+
+    Additionally, if a check_last value is given and "archives" is in checks, then include a
+    "--last" flag. And if a prefix value is given and "archives" is in checks, then include a
+    "--prefix" flag.
+    '''
+    if 'archives' in checks:
+        last_flags = ('--last', str(check_last)) if check_last else ()
+        prefix_flags = ('--prefix', prefix) if prefix else ()
+    else:
+        last_flags = ()
+        prefix_flags = ()
+        if check_last:
+            logger.warning(
+                'Ignoring check_last option, as "archives" is not in consistency checks.'
+            )
+        if prefix:
+            logger.warning(
+                'Ignoring consistency prefix option, as "archives" is not in consistency checks.'
+            )
+
+    common_flags = last_flags + prefix_flags + (('--verify-data',) if 'data' in checks else ())
+
+    if set(DEFAULT_CHECKS).issubset(set(checks)):
+        return common_flags
+
+    return (
+        tuple('--{}-only'.format(check) for check in checks if check in DEFAULT_CHECKS)
+        + common_flags
+    )
+
+
+def check_archives(
+    repository,
+    storage_config,
+    consistency_config,
+    local_path='borg',
+    remote_path=None,
+    only_checks=None,
+):
+    '''
+    Given a local or remote repository path, a storage config dict, a consistency config dict,
+    local/remote commands to run, and an optional list of checks to use instead of configured
+    checks, check the contained Borg archives for consistency.
+
+    If there are no consistency checks to run, skip running them.
+    '''
+    checks = _parse_checks(consistency_config, only_checks)
+    check_last = consistency_config.get('check_last', None)
+    lock_wait = None
+
+    if set(checks).intersection(set(DEFAULT_CHECKS + ('data',))):
+        remote_path_flags = ('--remote-path', remote_path) if remote_path else ()
+        lock_wait = storage_config.get('lock_wait', None)
+        lock_wait_flags = ('--lock-wait', str(lock_wait)) if lock_wait else ()
+
+        verbosity_flags = ()
+        if logger.isEnabledFor(logging.INFO):
+            verbosity_flags = ('--info',)
+        if logger.isEnabledFor(logging.DEBUG):
+            verbosity_flags = ('--debug', '--show-rc')
+
+        prefix = consistency_config.get('prefix', DEFAULT_PREFIX)
+
+        full_command = (
+            (local_path, 'check')
+            + _make_check_flags(checks, check_last, prefix)
+            + remote_path_flags
+            + lock_wait_flags
+            + verbosity_flags
+            + (repository,)
+        )
+
+        execute_command(full_command)
+
+    if 'extract' in checks:
+        extract.extract_last_archive_dry_run(repository, lock_wait, local_path, remote_path)

borgmatic/borg/create.py

@@ -0,0 +1,195 @@
+import glob
+import itertools
+import logging
+import os
+import tempfile
+
+from borgmatic.execute import execute_command, execute_command_without_capture
+
+logger = logging.getLogger(__name__)
+
+
+def _expand_directory(directory):
+    '''
+    Given a directory path, expand any tilde (representing a user's home directory) and any globs
+    therein. Return a list of one or more resulting paths.
+    '''
+    expanded_directory = os.path.expanduser(directory)
+
+    return glob.glob(expanded_directory) or [expanded_directory]
+
+
+def _expand_directories(directories):
+    '''
+    Given a sequence of directory paths, expand tildes and globs in each one. Return all the
+    resulting directories as a single flattened tuple.
+    '''
+    if directories is None:
+        return ()
+
+    return tuple(
+        itertools.chain.from_iterable(_expand_directory(directory) for directory in directories)
+    )
+
+
+def _expand_home_directories(directories):
+    '''
+    Given a sequence of directory paths, expand tildes in each one. Do not perform any globbing.
+    Return the results as a tuple.
+    '''
+    if directories is None:
+        return ()
+
+    return tuple(os.path.expanduser(directory) for directory in directories)
+
+
+def _write_pattern_file(patterns=None):
+    '''
+    Given a sequence of patterns, write them to a named temporary file and return it. Return None
+    if no patterns are provided.
+    '''
+    if not patterns:
+        return None
+
+    pattern_file = tempfile.NamedTemporaryFile('w')
+    pattern_file.write('\n'.join(patterns))
+    pattern_file.flush()
+
+    return pattern_file
+
+
+def _make_pattern_flags(location_config, pattern_filename=None):
+    '''
+    Given a location config dict with a potential patterns_from option, and a filename containing
+    any additional patterns, return the corresponding Borg flags for those files as a tuple.
+    '''
+    pattern_filenames = tuple(location_config.get('patterns_from') or ()) + (
+        (pattern_filename,) if pattern_filename else ()
+    )
+
+    return tuple(
+        itertools.chain.from_iterable(
+            ('--patterns-from', pattern_filename) for pattern_filename in pattern_filenames
+        )
+    )
+
+
+def _make_exclude_flags(location_config, exclude_filename=None):
+    '''
+    Given a location config dict with various exclude options, and a filename containing any exclude
+    patterns, return the corresponding Borg flags as a tuple.
+    '''
+    exclude_filenames = tuple(location_config.get('exclude_from') or ()) + (
+        (exclude_filename,) if exclude_filename else ()
+    )
+    exclude_from_flags = tuple(
+        itertools.chain.from_iterable(
+            ('--exclude-from', exclude_filename) for exclude_filename in exclude_filenames
+        )
+    )
+    caches_flag = ('--exclude-caches',) if location_config.get('exclude_caches') else ()
+    if_present = location_config.get('exclude_if_present')
+    if_present_flags = ('--exclude-if-present', if_present) if if_present else ()
+
+    return exclude_from_flags + caches_flag + if_present_flags
+
+
+BORGMATIC_SOURCE_DIRECTORY = '~/.borgmatic'
+
+
+def borgmatic_source_directories():
+    '''
+    Return a list of borgmatic-specific source directories used for state like database backups.
+    '''
+    return (
+        [BORGMATIC_SOURCE_DIRECTORY]
+        if os.path.exists(os.path.expanduser(BORGMATIC_SOURCE_DIRECTORY))
+        else []
+    )
+
+
+def create_archive(
+    dry_run,
+    repository,
+    location_config,
+    storage_config,
+    local_path='borg',
+    remote_path=None,
+    progress=False,
+    stats=False,
+    json=False,
+):
+    '''
+    Given vebosity/dry-run flags, a local or remote repository path, a location config dict, and a
+    storage config dict, create a Borg archive and return Borg's JSON output (if any).
+    '''
+    sources = _expand_directories(
+        location_config['source_directories'] + borgmatic_source_directories()
+    )
+
+    pattern_file = _write_pattern_file(location_config.get('patterns'))
+    exclude_file = _write_pattern_file(
+        _expand_home_directories(location_config.get('exclude_patterns'))
+    )
+    checkpoint_interval = storage_config.get('checkpoint_interval', None)
+    chunker_params = storage_config.get('chunker_params', None)
+    compression = storage_config.get('compression', None)
+    remote_rate_limit = storage_config.get('remote_rate_limit', None)
+    umask = storage_config.get('umask', None)
+    lock_wait = storage_config.get('lock_wait', None)
+    files_cache = location_config.get('files_cache')
+    default_archive_name_format = '{hostname}-{now:%Y-%m-%dT%H:%M:%S.%f}'
+    archive_name_format = storage_config.get('archive_name_format', default_archive_name_format)
+
+    full_command = (
+        (local_path, 'create')
+        + _make_pattern_flags(location_config, pattern_file.name if pattern_file else None)
+        + _make_exclude_flags(location_config, exclude_file.name if exclude_file else None)
+        + (('--checkpoint-interval', str(checkpoint_interval)) if checkpoint_interval else ())
+        + (('--chunker-params', chunker_params) if chunker_params else ())
+        + (('--compression', compression) if compression else ())
+        + (('--remote-ratelimit', str(remote_rate_limit)) if remote_rate_limit else ())
+        + (('--one-file-system',) if location_config.get('one_file_system') else ())
+        + (('--numeric-owner',) if location_config.get('numeric_owner') else ())
+        + (('--noatime',) if location_config.get('atime') is False else ())
+        + (('--noctime',) if location_config.get('ctime') is False else ())
+        + (('--nobirthtime',) if location_config.get('birthtime') is False else ())
+        + (('--read-special',) if location_config.get('read_special') else ())
+        + (('--nobsdflags',) if location_config.get('bsd_flags') is False else ())
+        + (('--files-cache', files_cache) if files_cache else ())
+        + (('--remote-path', remote_path) if remote_path else ())
+        + (('--umask', str(umask)) if umask else ())
+        + (('--lock-wait', str(lock_wait)) if lock_wait else ())
+        + (('--list', '--filter', 'AME-') if logger.isEnabledFor(logging.INFO) and not json else ())
+        + (('--info',) if logger.getEffectiveLevel() == logging.INFO and not json else ())
+        + (
+            ('--stats',)
+            if not dry_run and (logger.isEnabledFor(logging.INFO) or stats) and not json
+            else ()
+        )
+        + (('--debug', '--show-rc') if logger.isEnabledFor(logging.DEBUG) and not json else ())
+        + (('--dry-run',) if dry_run else ())
+        + (('--progress',) if progress else ())
+        + (('--json',) if json else ())
+        + (
+            '{repository}::{archive_name_format}'.format(
+                repository=repository, archive_name_format=archive_name_format
+            ),
+        )
+        + sources
+    )
+
+    # The progress output isn't compatible with captured and logged output, as progress messes with
+    # the terminal directly.
+    if progress:
+        execute_command_without_capture(full_command)
+        return
+
+    if json:
+        output_log_level = None
+    elif stats:
+        output_log_level = logging.WARNING
+    else:
+        output_log_level = logging.INFO
+
+    return execute_command(full_command, output_log_level)

borgmatic/borg/environment.py

@@ -0,0 +1,31 @@
+import os
+
+OPTION_TO_ENVIRONMENT_VARIABLE = {
+    'borg_base_directory': 'BORG_BASE_DIR',
+    'borg_config_directory': 'BORG_CONFIG_DIR',
+    'borg_cache_directory': 'BORG_CACHE_DIR',
+    'borg_security_directory': 'BORG_SECURITY_DIR',
+    'borg_keys_directory': 'BORG_KEYS_DIR',
+    'encryption_passcommand': 'BORG_PASSCOMMAND',
+    'encryption_passphrase': 'BORG_PASSPHRASE',
+    'ssh_command': 'BORG_RSH',
+}
+
+DEFAULT_BOOL_OPTION_TO_ENVIRONMENT_VARIABLE = {
+    'relocated_repo_access_is_ok': 'BORG_RELOCATED_REPO_ACCESS_IS_OK',
+    'unknown_unencrypted_repo_access_is_ok': 'BORG_UNKNOWN_UNENCRYPTED_REPO_ACCESS_IS_OK',
+}
+
+
+def initialize(storage_config):
+    for option_name, environment_variable_name in OPTION_TO_ENVIRONMENT_VARIABLE.items():
+        value = storage_config.get(option_name)
+        if value:
+            os.environ[environment_variable_name] = value
+
+    for (
+        option_name,
+        environment_variable_name,
+    ) in DEFAULT_BOOL_OPTION_TO_ENVIRONMENT_VARIABLE.items():
+        value = storage_config.get(option_name, False)
+        os.environ[environment_variable_name] = 'yes' if value else 'no'

borgmatic/borg/extract.py

@@ -0,0 +1,99 @@
+import logging
+import os
+
+from borgmatic.execute import execute_command, execute_command_without_capture
+
+logger = logging.getLogger(__name__)
+
+
+def extract_last_archive_dry_run(repository, lock_wait=None, local_path='borg', remote_path=None):
+    '''
+    Perform an extraction dry-run of the most recent archive. If there are no archives, skip the
+    dry-run.
+    '''
+    remote_path_flags = ('--remote-path', remote_path) if remote_path else ()
+    lock_wait_flags = ('--lock-wait', str(lock_wait)) if lock_wait else ()
+    verbosity_flags = ()
+    if logger.isEnabledFor(logging.DEBUG):
+        verbosity_flags = ('--debug', '--show-rc')
+    elif logger.isEnabledFor(logging.INFO):
+        verbosity_flags = ('--info',)
+
+    full_list_command = (
+        (local_path, 'list', '--short')
+        + remote_path_flags
+        + lock_wait_flags
+        + verbosity_flags
+        + (repository,)
+    )
+
+    list_output = execute_command(full_list_command, output_log_level=None)
+
+    try:
+        last_archive_name = list_output.strip().splitlines()[-1]
+    except IndexError:
+        return
+
+    list_flag = ('--list',) if logger.isEnabledFor(logging.DEBUG) else ()
+    full_extract_command = (
+        (local_path, 'extract', '--dry-run')
+        + remote_path_flags
+        + lock_wait_flags
+        + verbosity_flags
+        + list_flag
+        + (
+            '{repository}::{last_archive_name}'.format(
+                repository=repository, last_archive_name=last_archive_name
+            ),
+        )
+    )
+
+    execute_command(full_extract_command, working_directory=None, error_on_warnings=True)
+
+
+def extract_archive(
+    dry_run,
+    repository,
+    archive,
+    paths,
+    location_config,
+    storage_config,
+    local_path='borg',
+    remote_path=None,
+    destination_path=None,
+    progress=False,
+):
+    '''
+    Given a dry-run flag, a local or remote repository path, an archive name, zero or more paths to
+    restore from the archive, location/storage configuration dicts, optional local and remote Borg
+    paths, and an optional destination path to extract to, extract the archive into the current
+    directory.
+    '''
+    umask = storage_config.get('umask', None)
+    lock_wait = storage_config.get('lock_wait', None)
+
+    full_command = (
+        (local_path, 'extract')
+        + (('--remote-path', remote_path) if remote_path else ())
+        + (('--numeric-owner',) if location_config.get('numeric_owner') else ())
+        + (('--umask', str(umask)) if umask else ())
+        + (('--lock-wait', str(lock_wait)) if lock_wait else ())
+        + (('--info',) if logger.getEffectiveLevel() == logging.INFO else ())
+        + (('--debug', '--list', '--show-rc') if logger.isEnabledFor(logging.DEBUG) else ())
+        + (('--dry-run',) if dry_run else ())
+        + (('--progress',) if progress else ())
+        + ('::'.join((os.path.abspath(repository), archive)),)
+        + (tuple(paths) if paths else ())
+    )
+
+    # The progress output isn't compatible with captured and logged output, as progress messes with
+    # the terminal directly.
+    if progress:
+        execute_command_without_capture(
+            full_command, working_directory=destination_path, error_on_warnings=True
+        )
+        return
+
+    # Error on warnings, as Borg only gives a warning if the restore paths don't exist in the
+    # archive!
+    execute_command(full_command, working_directory=destination_path, error_on_warnings=True)

borgmatic/borg/flags.py

@@ -0,0 +1,31 @@
+import itertools
+
+
+def make_flags(name, value):
+    '''
+    Given a flag name and its value, return it formatted as Borg-compatible flags.
+    '''
+    if not value:
+        return ()
+
+    flag = '--{}'.format(name.replace('_', '-'))
+
+    if value is True:
+        return (flag,)
+
+    return (flag, str(value))
+
+
+def make_flags_from_arguments(arguments, excludes=()):
+    '''
+    Given borgmatic command-line arguments as an instance of argparse.Namespace, and optionally a
+    list of named arguments to exclude, generate and return the corresponding Borg command-line
+    flags as a tuple.
+    '''
+    return tuple(
+        itertools.chain.from_iterable(
+            make_flags(name, value=getattr(arguments, name))
+            for name in sorted(vars(arguments))
+            if name not in excludes and not name.startswith('_')
+        )
+    )

borgmatic/borg/info.py

@@ -0,0 +1,43 @@
+import logging
+
+from borgmatic.borg.flags import make_flags, make_flags_from_arguments
+from borgmatic.execute import execute_command
+
+logger = logging.getLogger(__name__)
+
+
+def display_archives_info(
+    repository, storage_config, info_arguments, local_path='borg', remote_path=None
+):
+    '''
+    Given a local or remote repository path, a storage config dict, and the arguments to the info
+    action, display summary information for Borg archives in the repository or return JSON summary
+    information.
+    '''
+    lock_wait = storage_config.get('lock_wait', None)
+
+    full_command = (
+        (local_path, 'info')
+        + (
+            ('--info',)
+            if logger.getEffectiveLevel() == logging.INFO and not info_arguments.json
+            else ()
+        )
+        + (
+            ('--debug', '--show-rc')
+            if logger.isEnabledFor(logging.DEBUG) and not info_arguments.json
+            else ()
+        )
+        + make_flags('remote-path', remote_path)
+        + make_flags('lock-wait', lock_wait)
+        + make_flags_from_arguments(info_arguments, excludes=('repository', 'archive'))
+        + (
+            '::'.join((repository, info_arguments.archive))
+            if info_arguments.archive
+            else repository,
+        )
+    )
+
+    return execute_command(
+        full_command, output_log_level=None if info_arguments.json else logging.WARNING
+    )

borgmatic/borg/init.py

@@ -0,0 +1,48 @@
+import logging
+import subprocess
+
+from borgmatic.execute import execute_command, execute_command_without_capture
+
+logger = logging.getLogger(__name__)
+
+
+INFO_REPOSITORY_NOT_FOUND_EXIT_CODE = 2
+
+
+def initialize_repository(
+    repository,
+    encryption_mode,
+    append_only=None,
+    storage_quota=None,
+    local_path='borg',
+    remote_path=None,
+):
+    '''
+    Given a local or remote repository path, a Borg encryption mode, whether the repository should
+    be append-only, and the storage quota to use, initialize the repository. If the repository
+    already exists, then log and skip initialization.
+    '''
+    info_command = (local_path, 'info', repository)
+    logger.debug(' '.join(info_command))
+
+    try:
+        execute_command(info_command, output_log_level=None)
+        logger.info('Repository already exists. Skipping initialization.')
+        return
+    except subprocess.CalledProcessError as error:
+        if error.returncode != INFO_REPOSITORY_NOT_FOUND_EXIT_CODE:
+            raise
+
+    init_command = (
+        (local_path, 'init')
+        + (('--encryption', encryption_mode) if encryption_mode else ())
+        + (('--append-only',) if append_only else ())
+        + (('--storage-quota', storage_quota) if storage_quota else ())
+        + (('--info',) if logger.getEffectiveLevel() == logging.INFO else ())
+        + (('--debug',) if logger.isEnabledFor(logging.DEBUG) else ())
+        + (('--remote-path', remote_path) if remote_path else ())
+        + (repository,)
+    )
+
+    # Don't use execute_command() here because it doesn't support interactive prompts.
+    execute_command_without_capture(init_command)

borgmatic/borg/list.py

@@ -0,0 +1,50 @@
+import logging
+
+from borgmatic.borg.flags import make_flags, make_flags_from_arguments
+from borgmatic.execute import execute_command
+
+logger = logging.getLogger(__name__)
+
+
+# A hack to convince Borg to exclude archives ending in ".checkpoint". This assumes that a
+# non-checkpoint archive name ends in a digit (e.g. from a timestamp).
+BORG_EXCLUDE_CHECKPOINTS_GLOB = '*[0123456789]'
+
+
+def list_archives(repository, storage_config, list_arguments, local_path='borg', remote_path=None):
+    '''
+    Given a local or remote repository path, a storage config dict, and the arguments to the list
+    action, display the output of listing Borg archives in the repository or return JSON output. Or,
+    if an archive name is given, listing the files in that archive.
+    '''
+    lock_wait = storage_config.get('lock_wait', None)
+    if list_arguments.successful:
+        list_arguments.glob_archives = BORG_EXCLUDE_CHECKPOINTS_GLOB
+
+    full_command = (
+        (local_path, 'list')
+        + (
+            ('--info',)
+            if logger.getEffectiveLevel() == logging.INFO and not list_arguments.json
+            else ()
+        )
+        + (
+            ('--debug', '--show-rc')
+            if logger.isEnabledFor(logging.DEBUG) and not list_arguments.json
+            else ()
+        )
+        + make_flags('remote-path', remote_path)
+        + make_flags('lock-wait', lock_wait)
+        + make_flags_from_arguments(
+            list_arguments, excludes=('repository', 'archive', 'successful')
+        )
+        + (
+            '::'.join((repository, list_arguments.archive))
+            if list_arguments.archive
+            else repository,
+        )
+    )
+
+    return execute_command(
+        full_command, output_log_level=None if list_arguments.json else logging.WARNING
+    )

borgmatic/borg/prune.py

@@ -0,0 +1,67 @@
+import logging
+
+from borgmatic.execute import execute_command
+
+logger = logging.getLogger(__name__)
+
+
+def _make_prune_flags(retention_config):
+    '''
+    Given a retention config dict mapping from option name to value, tranform it into an iterable of
+    command-line name-value flag pairs.
+
+    For example, given a retention config of:
+
+        {'keep_weekly': 4, 'keep_monthly': 6}
+
+    This will be returned as an iterable of:
+
+        (
+            ('--keep-weekly', '4'),
+            ('--keep-monthly', '6'),
+        )
+    '''
+    config = retention_config.copy()
+
+    if 'prefix' not in config:
+        config['prefix'] = '{hostname}-'
+    elif not config['prefix']:
+        config.pop('prefix')
+
+    return (
+        ('--' + option_name.replace('_', '-'), str(value)) for option_name, value in config.items()
+    )
+
+
+def prune_archives(
+    dry_run,
+    repository,
+    storage_config,
+    retention_config,
+    local_path='borg',
+    remote_path=None,
+    stats=False,
+):
+    '''
+    Given dry-run flag, a local or remote repository path, a storage config dict, and a
+    retention config dict, prune Borg archives according to the retention policy specified in that
+    configuration.
+    '''
+    umask = storage_config.get('umask', None)
+    lock_wait = storage_config.get('lock_wait', None)
+
+    full_command = (
+        (local_path, 'prune')
+        + tuple(element for pair in _make_prune_flags(retention_config) for element in pair)
+        + (('--remote-path', remote_path) if remote_path else ())
+        + (('--umask', str(umask)) if umask else ())
+        + (('--lock-wait', str(lock_wait)) if lock_wait else ())
+        + (('--stats',) if not dry_run and logger.isEnabledFor(logging.INFO) else ())
+        + (('--info',) if logger.getEffectiveLevel() == logging.INFO else ())
+        + (('--debug', '--list', '--show-rc') if logger.isEnabledFor(logging.DEBUG) else ())
+        + (('--dry-run',) if dry_run else ())
+        + (('--stats',) if stats else ())
+        + (repository,)
+    )
+
+    execute_command(full_command, output_log_level=logging.WARNING if stats else logging.INFO)

borgmatic/commands/arguments.py

@@ -0,0 +1,448 @@
+import collections
+from argparse import ArgumentParser
+
+from borgmatic.config import collect
+
+SUBPARSER_ALIASES = {
+    'init': ['--init', '-I'],
+    'prune': ['--prune', '-p'],
+    'create': ['--create', '-C'],
+    'check': ['--check', '-k'],
+    'extract': ['--extract', '-x'],
+    'restore': ['--restore', '-r'],
+    'list': ['--list', '-l'],
+    'info': ['--info', '-i'],
+}
+
+
+def parse_subparser_arguments(unparsed_arguments, subparsers):
+    '''
+    Given a sequence of arguments, and a subparsers object as returned by
+    argparse.ArgumentParser().add_subparsers(), give each requested action's subparser a shot at
+    parsing all arguments. This allows common arguments like "--repository" to be shared across
+    multiple subparsers.
+
+    Return the result as a dict mapping from subparser name to a parsed namespace of arguments.
+    '''
+    arguments = collections.OrderedDict()
+    remaining_arguments = list(unparsed_arguments)
+    alias_to_subparser_name = {
+        alias: subparser_name
+        for subparser_name, aliases in SUBPARSER_ALIASES.items()
+        for alias in aliases
+    }
+
+    for subparser_name, subparser in subparsers.choices.items():
+        if subparser_name not in remaining_arguments:
+            continue
+
+        canonical_name = alias_to_subparser_name.get(subparser_name, subparser_name)
+
+        # If a parsed value happens to be the same as the name of a subparser, remove it from the
+        # remaining arguments. This prevents, for instance, "check --only extract" from triggering
+        # the "extract" subparser.
+        parsed, unused_remaining = subparser.parse_known_args(unparsed_arguments)
+        for value in vars(parsed).values():
+            if isinstance(value, str):
+                if value in subparsers.choices:
+                    remaining_arguments.remove(value)
+            elif isinstance(value, list):
+                for item in value:
+                    if item in subparsers.choices:
+                        remaining_arguments.remove(item)
+
+        arguments[canonical_name] = parsed
+
+    # If no actions are explicitly requested, assume defaults: prune, create, and check.
+    if not arguments and '--help' not in unparsed_arguments and '-h' not in unparsed_arguments:
+        for subparser_name in ('prune', 'create', 'check'):
+            subparser = subparsers.choices[subparser_name]
+            parsed, unused_remaining = subparser.parse_known_args(unparsed_arguments)
+            arguments[subparser_name] = parsed
+
+    return arguments
+
+
+def parse_global_arguments(unparsed_arguments, top_level_parser, subparsers):
+    '''
+    Given a sequence of arguments, a top-level parser (containing subparsers), and a subparsers
+    object as returned by argparse.ArgumentParser().add_subparsers(), parse and return any global
+    arguments as a parsed argparse.Namespace instance.
+    '''
+    # Ask each subparser, one by one, to greedily consume arguments. Any arguments that remain
+    # are global arguments.
+    remaining_arguments = list(unparsed_arguments)
+    present_subparser_names = set()
+
+    for subparser_name, subparser in subparsers.choices.items():
+        if subparser_name not in remaining_arguments:
+            continue
+
+        present_subparser_names.add(subparser_name)
+        unused_parsed, remaining_arguments = subparser.parse_known_args(remaining_arguments)
+
+    # If no actions are explicitly requested, assume defaults: prune, create, and check.
+    if (
+        not present_subparser_names
+        and '--help' not in unparsed_arguments
+        and '-h' not in unparsed_arguments
+    ):
+        for subparser_name in ('prune', 'create', 'check'):
+            subparser = subparsers.choices[subparser_name]
+            unused_parsed, remaining_arguments = subparser.parse_known_args(remaining_arguments)
+
+    # Remove the subparser names themselves.
+    for subparser_name in present_subparser_names:
+        if subparser_name in remaining_arguments:
+            remaining_arguments.remove(subparser_name)
+
+    return top_level_parser.parse_args(remaining_arguments)
+
+
+def parse_arguments(*unparsed_arguments):
+    '''
+    Given command-line arguments with which this script was invoked, parse the arguments and return
+    them as a dict mapping from subparser name (or "global") to an argparse.Namespace instance.
+    '''
+    config_paths = collect.get_default_config_paths()
+
+    global_parser = ArgumentParser(add_help=False)
+    global_group = global_parser.add_argument_group('global arguments')
+
+    global_group.add_argument(
+        '-c',
+        '--config',
+        nargs='*',
+        dest='config_paths',
+        default=config_paths,
+        help='Configuration filenames or directories, defaults to: {}'.format(
+            ' '.join(config_paths)
+        ),
+    )
+    global_group.add_argument(
+        '--excludes',
+        dest='excludes_filename',
+        help='Deprecated in favor of exclude_patterns within configuration',
+    )
+    global_group.add_argument(
+        '-n',
+        '--dry-run',
+        dest='dry_run',
+        action='store_true',
+        help='Go through the motions, but do not actually write to any repositories',
+    )
+    global_group.add_argument(
+        '-nc', '--no-color', dest='no_color', action='store_true', help='Disable colored output'
+    )
+    global_group.add_argument(
+        '-v',
+        '--verbosity',
+        type=int,
+        choices=range(0, 3),
+        default=0,
+        help='Display verbose progress to the console (from none to lots: 0, 1, or 2)',
+    )
+    global_group.add_argument(
+        '--syslog-verbosity',
+        type=int,
+        choices=range(0, 3),
+        default=0,
+        help='Display verbose progress to syslog (from none to lots: 0, 1, or 2). Ignored when console is interactive',
+    )
+    global_group.add_argument(
+        '--version',
+        dest='version',
+        default=False,
+        action='store_true',
+        help='Display installed version number of borgmatic and exit',
+    )
+
+    top_level_parser = ArgumentParser(
+        description='''
+            A simple wrapper script for the Borg backup software that creates and prunes backups.
+            If none of the action options are given, then borgmatic defaults to: prune, create, and
+            check archives.
+            ''',
+        parents=[global_parser],
+    )
+
+    subparsers = top_level_parser.add_subparsers(
+        title='actions',
+        metavar='',
+        help='Specify zero or more actions. Defaults to prune, create, and check. Use --help with action for details:',
+    )
+    init_parser = subparsers.add_parser(
+        'init',
+        aliases=SUBPARSER_ALIASES['init'],
+        help='Initialize an empty Borg repository',
+        description='Initialize an empty Borg repository',
+        add_help=False,
+    )
+    init_group = init_parser.add_argument_group('init arguments')
+    init_group.add_argument(
+        '-e',
+        '--encryption',
+        dest='encryption_mode',
+        help='Borg repository encryption mode',
+        required=True,
+    )
+    init_group.add_argument(
+        '--append-only',
+        dest='append_only',
+        action='store_true',
+        help='Create an append-only repository',
+    )
+    init_group.add_argument(
+        '--storage-quota',
+        dest='storage_quota',
+        help='Create a repository with a fixed storage quota',
+    )
+    init_group.add_argument('-h', '--help', action='help', help='Show this help message and exit')
+
+    prune_parser = subparsers.add_parser(
+        'prune',
+        aliases=SUBPARSER_ALIASES['prune'],
+        help='Prune archives according to the retention policy',
+        description='Prune archives according to the retention policy',
+        add_help=False,
+    )
+    prune_group = prune_parser.add_argument_group('prune arguments')
+    prune_group.add_argument(
+        '--stats',
+        dest='stats',
+        default=False,
+        action='store_true',
+        help='Display statistics of archive',
+    )
+    prune_group.add_argument('-h', '--help', action='help', help='Show this help message and exit')
+
+    create_parser = subparsers.add_parser(
+        'create',
+        aliases=SUBPARSER_ALIASES['create'],
+        help='Create archives (actually perform backups)',
+        description='Create archives (actually perform backups)',
+        add_help=False,
+    )
+    create_group = create_parser.add_argument_group('create arguments')
+    create_group.add_argument(
+        '--progress',
+        dest='progress',
+        default=False,
+        action='store_true',
+        help='Display progress for each file as it is processed',
+    )
+    create_group.add_argument(
+        '--stats',
+        dest='stats',
+        default=False,
+        action='store_true',
+        help='Display statistics of archive',
+    )
+    create_group.add_argument(
+        '--json', dest='json', default=False, action='store_true', help='Output results as JSON'
+    )
+    create_group.add_argument('-h', '--help', action='help', help='Show this help message and exit')
+
+    check_parser = subparsers.add_parser(
+        'check',
+        aliases=SUBPARSER_ALIASES['check'],
+        help='Check archives for consistency',
+        description='Check archives for consistency',
+        add_help=False,
+    )
+    check_group = check_parser.add_argument_group('check arguments')
+    check_group.add_argument(
+        '--only',
+        metavar='CHECK',
+        choices=('repository', 'archives', 'data', 'extract'),
+        dest='only',
+        action='append',
+        help='Run a particular consistency check (repository, archives, data, or extract) instead of configured checks; can specify flag multiple times',
+    )
+    check_group.add_argument('-h', '--help', action='help', help='Show this help message and exit')
+
+    extract_parser = subparsers.add_parser(
+        'extract',
+        aliases=SUBPARSER_ALIASES['extract'],
+        help='Extract files from a named archive to the current directory',
+        description='Extract a named archive to the current directory',
+        add_help=False,
+    )
+    extract_group = extract_parser.add_argument_group('extract arguments')
+    extract_group.add_argument(
+        '--repository',
+        help='Path of repository to extract, defaults to the configured repository if there is only one',
+    )
+    extract_group.add_argument('--archive', help='Name of archive to operate on', required=True)
+    extract_group.add_argument(
+        '--path',
+        '--restore-path',
+        metavar='PATH',
+        nargs='+',
+        dest='paths',
+        help='Paths to extract from archive, defaults to the entire archive',
+    )
+    extract_group.add_argument(
+        '--destination',
+        metavar='PATH',
+        dest='destination',
+        help='Directory to extract files into, defaults to the current directory',
+    )
+    extract_group.add_argument(
+        '--progress',
+        dest='progress',
+        default=False,
+        action='store_true',
+        help='Display progress for each file as it is processed',
+    )
+    extract_group.add_argument(
+        '-h', '--help', action='help', help='Show this help message and exit'
+    )
+
+    restore_parser = subparsers.add_parser(
+        'restore',
+        aliases=SUBPARSER_ALIASES['restore'],
+        help='Restore database dumps from a named archive',
+        description='Restore database dumps from a named archive. (To extract files instead, use "borgmatic extract".)',
+        add_help=False,
+    )
+    restore_group = restore_parser.add_argument_group('restore arguments')
+    restore_group.add_argument(
+        '--repository',
+        help='Path of repository to restore from, defaults to the configured repository if there is only one',
+    )
+    restore_group.add_argument('--archive', help='Name of archive to operate on', required=True)
+    restore_group.add_argument(
+        '--database',
+        metavar='NAME',
+        nargs='+',
+        dest='databases',
+        help='Names of databases to restore from archive, defaults to all databases. Note that any databases to restore must be defined in borgmatic\'s configuration',
+    )
+    restore_group.add_argument(
+        '--progress',
+        dest='progress',
+        default=False,
+        action='store_true',
+        help='Display progress for each database dump file as it is extracted from archive',
+    )
+    restore_group.add_argument(
+        '-h', '--help', action='help', help='Show this help message and exit'
+    )
+
+    list_parser = subparsers.add_parser(
+        'list',
+        aliases=SUBPARSER_ALIASES['list'],
+        help='List archives',
+        description='List archives or the contents of an archive',
+        add_help=False,
+    )
+    list_group = list_parser.add_argument_group('list arguments')
+    list_group.add_argument(
+        '--repository',
+        help='Path of repository to list, defaults to the configured repository if there is only one',
+    )
+    list_group.add_argument('--archive', help='Name of archive to list')
+    list_group.add_argument(
+        '--short', default=False, action='store_true', help='Output only archive or path names'
+    )
+    list_group.add_argument('--format', help='Format for file listing')
+    list_group.add_argument(
+        '--json', default=False, action='store_true', help='Output results as JSON'
+    )
+    list_group.add_argument(
+        '-P', '--prefix', help='Only list archive names starting with this prefix'
+    )
+    list_group.add_argument(
+        '-a', '--glob-archives', metavar='GLOB', help='Only list archive names matching this glob'
+    )
+    list_group.add_argument(
+        '--successful',
+        default=False,
+        action='store_true',
+        help='Only list archive names of successful (non-checkpoint) backups',
+    )
+    list_group.add_argument(
+        '--sort-by', metavar='KEYS', help='Comma-separated list of sorting keys'
+    )
+    list_group.add_argument(
+        '--first', metavar='N', help='List first N archives after other filters are applied'
+    )
+    list_group.add_argument(
+        '--last', metavar='N', help='List last N archives after other filters are applied'
+    )
+    list_group.add_argument(
+        '-e', '--exclude', metavar='PATTERN', help='Exclude paths matching the pattern'
+    )
+    list_group.add_argument(
+        '--exclude-from', metavar='FILENAME', help='Exclude paths from exclude file, one per line'
+    )
+    list_group.add_argument('--pattern', help='Include or exclude paths matching a pattern')
+    list_group.add_argument(
+        '--patterns-from',
+        metavar='FILENAME',
+        help='Include or exclude paths matching patterns from pattern file, one per line',
+    )
+    list_group.add_argument('-h', '--help', action='help', help='Show this help message and exit')
+
+    info_parser = subparsers.add_parser(
+        'info',
+        aliases=SUBPARSER_ALIASES['info'],
+        help='Display summary information on archives',
+        description='Display summary information on archives',
+        add_help=False,
+    )
+    info_group = info_parser.add_argument_group('info arguments')
+    info_group.add_argument(
+        '--repository',
+        help='Path of repository to show info for, defaults to the configured repository if there is only one',
+    )
+    info_group.add_argument('--archive', help='Name of archive to show info for')
+    info_group.add_argument(
+        '--json', dest='json', default=False, action='store_true', help='Output results as JSON'
+    )
+    info_group.add_argument(
+        '-P', '--prefix', help='Only show info for archive names starting with this prefix'
+    )
+    info_group.add_argument(
+        '-a',
+        '--glob-archives',
+        metavar='GLOB',
+        help='Only show info for archive names matching this glob',
+    )
+    info_group.add_argument(
+        '--sort-by', metavar='KEYS', help='Comma-separated list of sorting keys'
+    )
+    info_group.add_argument(
+        '--first',
+        metavar='N',
+        help='Show info for first N archives after other filters are applied',
+    )
+    info_group.add_argument(
+        '--last', metavar='N', help='Show info for first N archives after other filters are applied'
+    )
+    info_group.add_argument('-h', '--help', action='help', help='Show this help message and exit')
+
+    arguments = parse_subparser_arguments(unparsed_arguments, subparsers)
+    arguments['global'] = parse_global_arguments(unparsed_arguments, top_level_parser, subparsers)
+
+    if arguments['global'].excludes_filename:
+        raise ValueError(
+            'The --excludes option has been replaced with exclude_patterns in configuration'
+        )
+
+    if 'init' in arguments and arguments['global'].dry_run:
+        raise ValueError('The init action cannot be used with the --dry-run option')
+
+    if 'list' in arguments and arguments['list'].glob_archives and arguments['list'].successful:
+        raise ValueError('The --glob-archives and --successful options cannot be used together')
+
+    if (
+        'list' in arguments
+        and 'info' in arguments
+        and arguments['list'].json
+        and arguments['info'].json
+    ):
+        raise ValueError('With the --json option, list and info actions cannot be used together')
+
+    return arguments

borgmatic/commands/borgmatic.py

@@ -0,0 +1,497 @@
+import collections
+import json
+import logging
+import os
+import sys
+from subprocess import CalledProcessError
+
+import colorama
+import pkg_resources
+
+from borgmatic.borg import check as borg_check
+from borgmatic.borg import create as borg_create
+from borgmatic.borg import environment as borg_environment
+from borgmatic.borg import extract as borg_extract
+from borgmatic.borg import info as borg_info
+from borgmatic.borg import init as borg_init
+from borgmatic.borg import list as borg_list
+from borgmatic.borg import prune as borg_prune
+from borgmatic.commands.arguments import parse_arguments
+from borgmatic.config import checks, collect, convert, validate
+from borgmatic.hooks import command, healthchecks, postgresql
+from borgmatic.logger import configure_logging, should_do_markup
+from borgmatic.signals import configure_signals
+from borgmatic.verbosity import verbosity_to_log_level
+
+logger = logging.getLogger(__name__)
+
+LEGACY_CONFIG_PATH = '/etc/borgmatic/config'
+
+
+def run_configuration(config_filename, config, arguments):
+    '''
+    Given a config filename, the corresponding parsed config dict, and command-line arguments as a
+    dict from subparser name to a namespace of parsed arguments, execute its defined pruning,
+    backups, consistency checks, and/or other actions.
+
+    Yield a combination of:
+
+      * JSON output strings from successfully executing any actions that produce JSON
+      * logging.LogRecord instances containing errors from any actions or backup hooks that fail
+    '''
+    (location, storage, retention, consistency, hooks) = (
+        config.get(section_name, {})
+        for section_name in ('location', 'storage', 'retention', 'consistency', 'hooks')
+    )
+    global_arguments = arguments['global']
+
+    local_path = location.get('local_path', 'borg')
+    remote_path = location.get('remote_path')
+    borg_environment.initialize(storage)
+    encountered_error = None
+    error_repository = ''
+
+    if 'create' in arguments:
+        try:
+            healthchecks.ping_healthchecks(
+                hooks.get('healthchecks'), config_filename, global_arguments.dry_run, 'start'
+            )
+            command.execute_hook(
+                hooks.get('before_backup'),
+                hooks.get('umask'),
+                config_filename,
+                'pre-backup',
+                global_arguments.dry_run,
+            )
+            postgresql.dump_databases(
+                hooks.get('postgresql_databases'), config_filename, global_arguments.dry_run
+            )
+        except (OSError, CalledProcessError) as error:
+            encountered_error = error
+            yield from make_error_log_records(
+                '{}: Error running pre-backup hook'.format(config_filename), error
+            )
+
+    if not encountered_error:
+        for repository_path in location['repositories']:
+            try:
+                yield from run_actions(
+                    arguments=arguments,
+                    location=location,
+                    storage=storage,
+                    retention=retention,
+                    consistency=consistency,
+                    hooks=hooks,
+                    local_path=local_path,
+                    remote_path=remote_path,
+                    repository_path=repository_path,
+                )
+            except (OSError, CalledProcessError, ValueError) as error:
+                encountered_error = error
+                error_repository = repository_path
+                yield from make_error_log_records(
+                    '{}: Error running actions for repository'.format(repository_path), error
+                )
+
+    if 'create' in arguments and not encountered_error:
+        try:
+            postgresql.remove_database_dumps(
+                hooks.get('postgresql_databases'), config_filename, global_arguments.dry_run
+            )
+            command.execute_hook(
+                hooks.get('after_backup'),
+                hooks.get('umask'),
+                config_filename,
+                'post-backup',
+                global_arguments.dry_run,
+            )
+            healthchecks.ping_healthchecks(
+                hooks.get('healthchecks'), config_filename, global_arguments.dry_run
+            )
+        except (OSError, CalledProcessError) as error:
+            encountered_error = error
+            yield from make_error_log_records(
+                '{}: Error running post-backup hook'.format(config_filename), error
+            )
+
+    if encountered_error:
+        try:
+            command.execute_hook(
+                hooks.get('on_error'),
+                hooks.get('umask'),
+                config_filename,
+                'on-error',
+                global_arguments.dry_run,
+                repository=error_repository,
+                error=encountered_error,
+                output=getattr(encountered_error, 'output', ''),
+            )
+            healthchecks.ping_healthchecks(
+                hooks.get('healthchecks'), config_filename, global_arguments.dry_run, 'fail'
+            )
+        except (OSError, CalledProcessError) as error:
+            yield from make_error_log_records(
+                '{}: Error running on-error hook'.format(config_filename), error
+            )
+
+
+def run_actions(
+    *,
+    arguments,
+    location,
+    storage,
+    retention,
+    consistency,
+    hooks,
+    local_path,
+    remote_path,
+    repository_path
+):  # pragma: no cover
+    '''
+    Given parsed command-line arguments as an argparse.ArgumentParser instance, several different
+    configuration dicts, local and remote paths to Borg, and a repository name, run all actions
+    from the command-line arguments on the given repository.
+
+    Yield JSON output strings from executing any actions that produce JSON.
+
+    Raise OSError or subprocess.CalledProcessError if an error occurs running a command for an
+    action. Raise ValueError if the arguments or configuration passed to action are invalid.
+    '''
+    repository = os.path.expanduser(repository_path)
+    global_arguments = arguments['global']
+    dry_run_label = ' (dry run; not making any changes)' if global_arguments.dry_run else ''
+    if 'init' in arguments:
+        logger.info('{}: Initializing repository'.format(repository))
+        borg_init.initialize_repository(
+            repository,
+            arguments['init'].encryption_mode,
+            arguments['init'].append_only,
+            arguments['init'].storage_quota,
+            local_path=local_path,
+            remote_path=remote_path,
+        )
+    if 'prune' in arguments:
+        logger.info('{}: Pruning archives{}'.format(repository, dry_run_label))
+        borg_prune.prune_archives(
+            global_arguments.dry_run,
+            repository,
+            storage,
+            retention,
+            local_path=local_path,
+            remote_path=remote_path,
+            stats=arguments['prune'].stats,
+        )
+    if 'create' in arguments:
+        logger.info('{}: Creating archive{}'.format(repository, dry_run_label))
+        json_output = borg_create.create_archive(
+            global_arguments.dry_run,
+            repository,
+            location,
+            storage,
+            local_path=local_path,
+            remote_path=remote_path,
+            progress=arguments['create'].progress,
+            stats=arguments['create'].stats,
+            json=arguments['create'].json,
+        )
+        if json_output:
+            yield json.loads(json_output)
+    if 'check' in arguments and checks.repository_enabled_for_checks(repository, consistency):
+        logger.info('{}: Running consistency checks'.format(repository))
+        borg_check.check_archives(
+            repository,
+            storage,
+            consistency,
+            local_path=local_path,
+            remote_path=remote_path,
+            only_checks=arguments['check'].only,
+        )
+    if 'extract' in arguments:
+        if arguments['extract'].repository is None or repository == arguments['extract'].repository:
+            logger.info(
+                '{}: Extracting archive {}'.format(repository, arguments['extract'].archive)
+            )
+            borg_extract.extract_archive(
+                global_arguments.dry_run,
+                repository,
+                arguments['extract'].archive,
+                arguments['extract'].paths,
+                location,
+                storage,
+                local_path=local_path,
+                remote_path=remote_path,
+                destination_path=arguments['extract'].destination,
+                progress=arguments['extract'].progress,
+            )
+    if 'restore' in arguments:
+        if arguments['restore'].repository is None or repository == arguments['restore'].repository:
+            logger.info(
+                '{}: Restoring databases from archive {}'.format(
+                    repository, arguments['restore'].archive
+                )
+            )
+
+            restore_names = arguments['restore'].databases or []
+            if 'all' in restore_names:
+                restore_names = []
+
+            # Extract dumps for the named databases from the archive.
+            dump_patterns = postgresql.make_database_dump_patterns(restore_names)
+            borg_extract.extract_archive(
+                global_arguments.dry_run,
+                repository,
+                arguments['restore'].archive,
+                postgresql.convert_glob_patterns_to_borg_patterns(dump_patterns),
+                location,
+                storage,
+                local_path=local_path,
+                remote_path=remote_path,
+                destination_path='/',
+                progress=arguments['restore'].progress,
+            )
+
+            # Map the restore names to the corresponding database configurations.
+            databases = list(
+                postgresql.get_database_configurations(
+                    hooks.get('postgresql_databases'),
+                    restore_names or postgresql.get_database_names_from_dumps(dump_patterns),
+                )
+            )
+
+            # Finally, restore the databases and cleanup the dumps.
+            postgresql.restore_database_dumps(databases, repository, global_arguments.dry_run)
+            postgresql.remove_database_dumps(databases, repository, global_arguments.dry_run)
+    if 'list' in arguments:
+        if arguments['list'].repository is None or repository == arguments['list'].repository:
+            logger.info('{}: Listing archives'.format(repository))
+            json_output = borg_list.list_archives(
+                repository,
+                storage,
+                list_arguments=arguments['list'],
+                local_path=local_path,
+                remote_path=remote_path,
+            )
+            if json_output:
+                yield json.loads(json_output)
+    if 'info' in arguments:
+        if arguments['info'].repository is None or repository == arguments['info'].repository:
+            logger.info('{}: Displaying summary info for archives'.format(repository))
+            json_output = borg_info.display_archives_info(
+                repository,
+                storage,
+                info_arguments=arguments['info'],
+                local_path=local_path,
+                remote_path=remote_path,
+            )
+            if json_output:
+                yield json.loads(json_output)
+
+
+def load_configurations(config_filenames):
+    '''
+    Given a sequence of configuration filenames, load and validate each configuration file. Return
+    the results as a tuple of: dict of configuration filename to corresponding parsed configuration,
+    and sequence of logging.LogRecord instances containing any parse errors.
+    '''
+    # Dict mapping from config filename to corresponding parsed config dict.
+    configs = collections.OrderedDict()
+    logs = []
+
+    # Parse and load each configuration file.
+    for config_filename in config_filenames:
+        try:
+            configs[config_filename] = validate.parse_configuration(
+                config_filename, validate.schema_filename()
+            )
+        except (ValueError, OSError, validate.Validation_error) as error:
+            logs.extend(
+                [
+                    logging.makeLogRecord(
+                        dict(
+                            levelno=logging.CRITICAL,
+                            levelname='CRITICAL',
+                            msg='{}: Error parsing configuration file'.format(config_filename),
+                        )
+                    ),
+                    logging.makeLogRecord(
+                        dict(levelno=logging.CRITICAL, levelname='CRITICAL', msg=error)
+                    ),
+                ]
+            )
+
+    return (configs, logs)
+
+
+def make_error_log_records(message, error=None):
+    '''
+    Given error message text and an optional exception object, yield a series of logging.LogRecord
+    instances with error summary information.
+    '''
+    if not error:
+        yield logging.makeLogRecord(
+            dict(levelno=logging.CRITICAL, levelname='CRITICAL', msg=message)
+        )
+        return
+
+    try:
+        raise error
+    except CalledProcessError as error:
+        yield logging.makeLogRecord(
+            dict(levelno=logging.CRITICAL, levelname='CRITICAL', msg=message)
+        )
+        if error.output:
+            yield logging.makeLogRecord(
+                dict(levelno=logging.CRITICAL, levelname='CRITICAL', msg=error.output)
+            )
+        yield logging.makeLogRecord(dict(levelno=logging.CRITICAL, levelname='CRITICAL', msg=error))
+    except (ValueError, OSError) as error:
+        yield logging.makeLogRecord(
+            dict(levelno=logging.CRITICAL, levelname='CRITICAL', msg=message)
+        )
+        yield logging.makeLogRecord(dict(levelno=logging.CRITICAL, levelname='CRITICAL', msg=error))
+    except:  # noqa: E722
+        # Raising above only as a means of determining the error type. Swallow the exception here
+        # because we don't want the exception to propagate out of this function.
+        pass
+
+
+def collect_configuration_run_summary_logs(configs, arguments):
+    '''
+    Given a dict of configuration filename to corresponding parsed configuration, and parsed
+    command-line arguments as a dict from subparser name to a parsed namespace of arguments, run
+    each configuration file and yield a series of logging.LogRecord instances containing summary
+    information about each run.
+
+    As a side effect of running through these configuration files, output their JSON results, if
+    any, to stdout.
+    '''
+    # Run cross-file validation checks.
+    if 'extract' in arguments:
+        repository = arguments['extract'].repository
+    elif 'list' in arguments and arguments['list'].archive:
+        repository = arguments['list'].repository
+    else:
+        repository = None
+
+    if repository:
+        try:
+            validate.guard_configuration_contains_repository(repository, configs)
+        except ValueError as error:
+            yield from make_error_log_records(str(error))
+            return
+
+    if not configs:
+        yield from make_error_log_records(
+            '{}: No configuration files found'.format(' '.join(arguments['global'].config_paths))
+        )
+        return
+
+    if 'create' in arguments:
+        try:
+            for config_filename, config in configs.items():
+                hooks = config.get('hooks', {})
+                command.execute_hook(
+                    hooks.get('before_everything'),
+                    hooks.get('umask'),
+                    config_filename,
+                    'pre-everything',
+                    arguments['global'].dry_run,
+                )
+        except (CalledProcessError, ValueError, OSError) as error:
+            yield from make_error_log_records('Error running pre-everything hook', error)
+            return
+
+    # Execute the actions corresponding to each configuration file.
+    json_results = []
+    for config_filename, config in configs.items():
+        results = list(run_configuration(config_filename, config, arguments))
+        error_logs = tuple(result for result in results if isinstance(result, logging.LogRecord))
+
+        if error_logs:
+            yield from make_error_log_records(
+                '{}: Error running configuration file'.format(config_filename)
+            )
+            yield from error_logs
+        else:
+            yield logging.makeLogRecord(
+                dict(
+                    levelno=logging.INFO,
+                    levelname='INFO',
+                    msg='{}: Successfully ran configuration file'.format(config_filename),
+                )
+            )
+            if results:
+                json_results.extend(results)
+
+    if json_results:
+        sys.stdout.write(json.dumps(json_results))
+
+    if 'create' in arguments:
+        try:
+            for config_filename, config in configs.items():
+                hooks = config.get('hooks', {})
+                command.execute_hook(
+                    hooks.get('after_everything'),
+                    hooks.get('umask'),
+                    config_filename,
+                    'post-everything',
+                    arguments['global'].dry_run,
+                )
+        except (CalledProcessError, ValueError, OSError) as error:
+            yield from make_error_log_records('Error running post-everything hook', error)
+
+
+def exit_with_help_link():  # pragma: no cover
+    '''
+    Display a link to get help and exit with an error code.
+    '''
+    logger.critical('')
+    logger.critical('Need some help? https://torsion.org/borgmatic/#issues')
+    sys.exit(1)
+
+
+def main():  # pragma: no cover
+    configure_signals()
+
+    try:
+        arguments = parse_arguments(*sys.argv[1:])
+    except ValueError as error:
+        configure_logging(logging.CRITICAL)
+        logger.critical(error)
+        exit_with_help_link()
+    except SystemExit as error:
+        if error.code == 0:
+            raise error
+        configure_logging(logging.CRITICAL)
+        logger.critical('Error parsing arguments: {}'.format(' '.join(sys.argv)))
+        exit_with_help_link()
+
+    global_arguments = arguments['global']
+    if global_arguments.version:
+        print(pkg_resources.require('borgmatic')[0].version)
+        sys.exit(0)
+
+    config_filenames = tuple(collect.collect_config_filenames(global_arguments.config_paths))
+    configs, parse_logs = load_configurations(config_filenames)
+
+    colorama.init(autoreset=True, strip=not should_do_markup(global_arguments.no_color, configs))
+    configure_logging(
+        verbosity_to_log_level(global_arguments.verbosity),
+        verbosity_to_log_level(global_arguments.syslog_verbosity),
+    )
+
+    logger.debug('Ensuring legacy configuration is upgraded')
+    convert.guard_configuration_upgraded(LEGACY_CONFIG_PATH, config_filenames)
+
+    summary_logs = list(collect_configuration_run_summary_logs(configs, arguments))
+
+    logger.info('')
+    logger.info('summary:')
+    [
+        logger.handle(log)
+        for log in parse_logs + summary_logs
+        if log.levelno >= logger.getEffectiveLevel()
+    ]
+
+    if any(log.levelno == logging.CRITICAL for log in summary_logs):
+        exit_with_help_link()

borgmatic/commands/convert_config.py

@@ -0,0 +1,108 @@
+import os
+import sys
+import textwrap
+from argparse import ArgumentParser
+
+from ruamel import yaml
+
+from borgmatic.config import convert, generate, legacy, validate
+
+DEFAULT_SOURCE_CONFIG_FILENAME = '/etc/borgmatic/config'
+DEFAULT_SOURCE_EXCLUDES_FILENAME = '/etc/borgmatic/excludes'
+DEFAULT_DESTINATION_CONFIG_FILENAME = '/etc/borgmatic/config.yaml'
+
+
+def parse_arguments(*arguments):
+    '''
+    Given command-line arguments with which this script was invoked, parse the arguments and return
+    them as an ArgumentParser instance.
+    '''
+    parser = ArgumentParser(
+        description='''
+            Convert legacy INI-style borgmatic configuration and excludes files to a single YAML
+            configuration file. Note that this replaces any comments from the source files.
+        '''
+    )
+    parser.add_argument(
+        '-s',
+        '--source-config',
+        dest='source_config_filename',
+        default=DEFAULT_SOURCE_CONFIG_FILENAME,
+        help='Source INI-style configuration filename. Default: {}'.format(
+            DEFAULT_SOURCE_CONFIG_FILENAME
+        ),
+    )
+    parser.add_argument(
+        '-e',
+        '--source-excludes',
+        dest='source_excludes_filename',
+        default=DEFAULT_SOURCE_EXCLUDES_FILENAME
+        if os.path.exists(DEFAULT_SOURCE_EXCLUDES_FILENAME)
+        else None,
+        help='Excludes filename',
+    )
+    parser.add_argument(
+        '-d',
+        '--destination-config',
+        dest='destination_config_filename',
+        default=DEFAULT_DESTINATION_CONFIG_FILENAME,
+        help='Destination YAML configuration filename. Default: {}'.format(
+            DEFAULT_DESTINATION_CONFIG_FILENAME
+        ),
+    )
+
+    return parser.parse_args(arguments)
+
+
+TEXT_WRAP_CHARACTERS = 80
+
+
+def display_result(args):  # pragma: no cover
+    result_lines = textwrap.wrap(
+        'Your borgmatic configuration has been upgraded. Please review the result in {}.'.format(
+            args.destination_config_filename
+        ),
+        TEXT_WRAP_CHARACTERS,
+    )
+
+    delete_lines = textwrap.wrap(
+        'Once you are satisfied, you can safely delete {}{}.'.format(
+            args.source_config_filename,
+            ' and {}'.format(args.source_excludes_filename)
+            if args.source_excludes_filename
+            else '',
+        ),
+        TEXT_WRAP_CHARACTERS,
+    )
+
+    print('\n'.join(result_lines))
+    print()
+    print('\n'.join(delete_lines))
+
+
+def main():  # pragma: no cover
+    try:
+        args = parse_arguments(*sys.argv[1:])
+        schema = yaml.round_trip_load(open(validate.schema_filename()).read())
+        source_config = legacy.parse_configuration(
+            args.source_config_filename, legacy.CONFIG_FORMAT
+        )
+        source_config_file_mode = os.stat(args.source_config_filename).st_mode
+        source_excludes = (
+            open(args.source_excludes_filename).read().splitlines()
+            if args.source_excludes_filename
+            else []
+        )
+
+        destination_config = convert.convert_legacy_parsed_config(
+            source_config, source_excludes, schema
+        )
+
+        generate.write_configuration(
+            args.destination_config_filename, destination_config, mode=source_config_file_mode
+        )
+
+        display_result(args)
+    except (ValueError, OSError) as error:
+        print(error, file=sys.stderr)
+        sys.exit(1)

borgmatic/commands/generate_config.py

@@ -0,0 +1,44 @@
+import sys
+from argparse import ArgumentParser
+
+from borgmatic.config import generate, validate
+
+DEFAULT_DESTINATION_CONFIG_FILENAME = '/etc/borgmatic/config.yaml'
+
+
+def parse_arguments(*arguments):
+    '''
+    Given command-line arguments with which this script was invoked, parse the arguments and return
+    them as an ArgumentParser instance.
+    '''
+    parser = ArgumentParser(description='Generate a sample borgmatic YAML configuration file.')
+    parser.add_argument(
+        '-d',
+        '--destination',
+        dest='destination_filename',
+        default=DEFAULT_DESTINATION_CONFIG_FILENAME,
+        help='Destination YAML configuration filename. Default: {}'.format(
+            DEFAULT_DESTINATION_CONFIG_FILENAME
+        ),
+    )
+
+    return parser.parse_args(arguments)
+
+
+def main():  # pragma: no cover
+    try:
+        args = parse_arguments(*sys.argv[1:])
+
+        generate.generate_sample_configuration(
+            args.destination_filename, validate.schema_filename()
+        )
+
+        print('Generated a sample configuration file at {}.'.format(args.destination_filename))
+        print()
+        print('Please edit the file to suit your needs. The values are representative.')
+        print('All fields are optional except where indicated.')
+        print()
+        print('If you ever need help: https://torsion.org/borgmatic/#issues')
+    except (ValueError, OSError) as error:
+        print(error, file=sys.stderr)
+        sys.exit(1)

borgmatic/commands/validate_config.py

@@ -0,0 +1,56 @@
+import logging
+import sys
+from argparse import ArgumentParser
+
+from borgmatic.config import collect, validate
+
+logger = logging.getLogger(__name__)
+
+
+def parse_arguments(*arguments):
+    '''
+    Given command-line arguments with which this script was invoked, parse the arguments and return
+    them as an ArgumentParser instance.
+    '''
+    config_paths = collect.get_default_config_paths()
+
+    parser = ArgumentParser(description='Validate borgmatic configuration file(s).')
+    parser.add_argument(
+        '-c',
+        '--config',
+        nargs='+',
+        dest='config_paths',
+        default=config_paths,
+        help='Configuration filenames or directories, defaults to: {}'.format(
+            ' '.join(config_paths)
+        ),
+    )
+
+    return parser.parse_args(arguments)
+
+
+def main():  # pragma: no cover
+    args = parse_arguments(*sys.argv[1:])
+
+    logging.basicConfig(level=logging.INFO, format='%(message)s')
+
+    config_filenames = tuple(collect.collect_config_filenames(args.config_paths))
+    if len(config_filenames) == 0:
+        logger.critical('No files to validate found')
+        sys.exit(1)
+
+    found_issues = False
+    for config_filename in config_filenames:
+        try:
+            validate.parse_configuration(config_filename, validate.schema_filename())
+        except (ValueError, OSError, validate.Validation_error) as error:
+            logging.critical('{}: Error parsing configuration file'.format(config_filename))
+            logging.critical(error)
+            found_issues = True
+
+    if found_issues:
+        sys.exit(1)
+    else:
+        logger.info(
+            'All given configuration files are valid: {}'.format(', '.join(config_filenames))
+        )

borgmatic/config/checks.py

@@ -0,0 +1,9 @@
+def repository_enabled_for_checks(repository, consistency):
+    '''
+    Given a repository name and a consistency configuration dict, return whether the repository
+    is enabled to have consistency checks run.
+    '''
+    if not consistency.get('check_repositories'):
+        return True
+
+    return repository in consistency['check_repositories']

borgmatic/config/collect.py

@@ -0,0 +1,48 @@
+import os
+
+
+def get_default_config_paths():
+    '''
+    Based on the value of the XDG_CONFIG_HOME and HOME environment variables, return a list of
+    default configuration paths. This includes both system-wide configuration and configuration in
+    the current user's home directory.
+    '''
+    user_config_directory = os.getenv('XDG_CONFIG_HOME') or os.path.expandvars(
+        os.path.join('$HOME', '.config')
+    )
+
+    return [
+        '/etc/borgmatic/config.yaml',
+        '/etc/borgmatic.d',
+        '%s/borgmatic/config.yaml' % user_config_directory,
+    ]
+
+
+def collect_config_filenames(config_paths):
+    '''
+    Given a sequence of config paths, both filenames and directories, resolve that to an iterable
+    of files. Accomplish this by listing any given directories looking for contained config files
+    (ending with the ".yaml" or ".yml" extension). This is non-recursive, so any directories within the given
+    directories are ignored.
+
+    Return paths even if they don't exist on disk, so the user can find out about missing
+    configuration paths. However, skip a default config path if it's missing, so the user doesn't
+    have to create a default config path unless they need it.
+    '''
+    real_default_config_paths = set(map(os.path.realpath, get_default_config_paths()))
+
+    for path in config_paths:
+        exists = os.path.exists(path)
+
+        if os.path.realpath(path) in real_default_config_paths and not exists:
+            continue
+
+        if not os.path.isdir(path) or not exists:
+            yield path
+            continue
+
+        for filename in sorted(os.listdir(path)):
+            full_filename = os.path.join(path, filename)
+            matching_filetype = full_filename.endswith('.yaml') or full_filename.endswith('.yml')
+            if matching_filetype and not os.path.isdir(full_filename):
+                yield full_filename

borgmatic/config/convert.py

@@ -0,0 +1,95 @@
+import os
+
+from ruamel import yaml
+
+from borgmatic.config import generate
+
+
+def _convert_section(source_section_config, section_schema):
+    '''
+    Given a legacy Parsed_config instance for a single section, convert it to its corresponding
+    yaml.comments.CommentedMap representation in preparation for actual serialization to YAML.
+
+    Where integer types exist in the given section schema, convert their values to integers.
+    '''
+    destination_section_config = yaml.comments.CommentedMap(
+        [
+            (
+                option_name,
+                int(option_value)
+                if section_schema['map'].get(option_name, {}).get('type') == 'int'
+                else option_value,
+            )
+            for option_name, option_value in source_section_config.items()
+        ]
+    )
+
+    return destination_section_config
+
+
+def convert_legacy_parsed_config(source_config, source_excludes, schema):
+    '''
+    Given a legacy Parsed_config instance loaded from an INI-style config file and a list of exclude
+    patterns, convert them to a corresponding yaml.comments.CommentedMap representation in
+    preparation for serialization to a single YAML config file.
+
+    Additionally, use the given schema as a source of helpful comments to include within the
+    returned CommentedMap.
+    '''
+    destination_config = yaml.comments.CommentedMap(
+        [
+            (section_name, _convert_section(section_config, schema['map'][section_name]))
+            for section_name, section_config in source_config._asdict().items()
+        ]
+    )
+
+    # Split space-seperated values into actual lists, make "repository" into a list, and merge in
+    # excludes.
+    location = destination_config['location']
+    location['source_directories'] = source_config.location['source_directories'].split(' ')
+    location['repositories'] = [location.pop('repository')]
+    location['exclude_patterns'] = source_excludes
+
+    if source_config.consistency.get('checks'):
+        destination_config['consistency']['checks'] = source_config.consistency['checks'].split(' ')
+
+    # Add comments to each section, and then add comments to the fields in each section.
+    generate.add_comments_to_configuration_map(destination_config, schema)
+
+    for section_name, section_config in destination_config.items():
+        generate.add_comments_to_configuration_map(
+            section_config, schema['map'][section_name], indent=generate.INDENT
+        )
+
+    return destination_config
+
+
+class Legacy_configuration_not_upgraded(FileNotFoundError):
+    def __init__(self):
+        super(Legacy_configuration_not_upgraded, self).__init__(
+            '''borgmatic changed its configuration file format in version 1.1.0 from INI-style
+to YAML. This better supports validation, and has a more natural way to express
+lists of values. To upgrade your existing configuration, run:
+
+    sudo upgrade-borgmatic-config
+
+That will generate a new YAML configuration file at /etc/borgmatic/config.yaml
+(by default) using the values from both your existing configuration and excludes
+files. The new version of borgmatic will consume the YAML configuration file
+instead of the old one.'''
+        )
+
+
+def guard_configuration_upgraded(source_config_filename, destination_config_filenames):
+    '''
+    If legacy source configuration exists but no destination upgraded configs do, raise
+    Legacy_configuration_not_upgraded.
+
+    The idea is that we want to alert the user about upgrading their config if they haven't already.
+    '''
+    destination_config_exists = any(
+        os.path.exists(filename) for filename in destination_config_filenames
+    )
+
+    if os.path.exists(source_config_filename) and not destination_config_exists:
+        raise Legacy_configuration_not_upgraded()

borgmatic/config/generate.py

@@ -0,0 +1,203 @@
+import io
+import os
+import re
+
+from ruamel import yaml
+
+INDENT = 4
+SEQUENCE_INDENT = 2
+
+
+def _insert_newline_before_comment(config, field_name):
+    '''
+    Using some ruamel.yaml black magic, insert a blank line in the config right before the given
+    field and its comments.
+    '''
+    config.ca.items[field_name][1].insert(
+        0, yaml.tokens.CommentToken('\n', yaml.error.CommentMark(0), None)
+    )
+
+
+def _schema_to_sample_configuration(schema, level=0, parent_is_sequence=False):
+    '''
+    Given a loaded configuration schema, generate and return sample config for it. Include comments
+    for each section based on the schema "desc" description.
+    '''
+    example = schema.get('example')
+    if example is not None:
+        return example
+
+    if 'seq' in schema:
+        config = yaml.comments.CommentedSeq(
+            [
+                _schema_to_sample_configuration(item_schema, level, parent_is_sequence=True)
+                for item_schema in schema['seq']
+            ]
+        )
+        add_comments_to_configuration_sequence(
+            config, schema, indent=(level * INDENT) + SEQUENCE_INDENT
+        )
+    elif 'map' in schema:
+        config = yaml.comments.CommentedMap(
+            [
+                (section_name, _schema_to_sample_configuration(section_schema, level + 1))
+                for section_name, section_schema in schema['map'].items()
+            ]
+        )
+        indent = (level * INDENT) + (SEQUENCE_INDENT if parent_is_sequence else 0)
+        add_comments_to_configuration_map(
+            config, schema, indent=indent, skip_first=parent_is_sequence
+        )
+    else:
+        raise ValueError('Schema at level {} is unsupported: {}'.format(level, schema))
+
+    return config
+
+
+def _comment_out_line(line):
+    # If it's already is commented out (or empty), there's nothing further to do!
+    stripped_line = line.lstrip()
+    if not stripped_line or stripped_line.startswith('#'):
+        return line
+
+    # Comment out the names of optional sections, inserting the '#' after any indent for aesthetics.
+    matches = re.match(r'(\s*)', line)
+    indent_spaces = matches.group(0) if matches else ''
+    count_indent_spaces = len(indent_spaces)
+
+    return '# '.join((indent_spaces, line[count_indent_spaces:]))
+
+
+REQUIRED_KEYS = {'source_directories', 'repositories', 'keep_daily'}
+REQUIRED_SECTION_NAMES = {'location', 'retention'}
+
+
+def _comment_out_optional_configuration(rendered_config):
+    '''
+    Post-process a rendered configuration string to comment out optional key/values. The idea is
+    that this prevents the user from having to comment out a bunch of configuration they don't care
+    about to get to a minimal viable configuration file.
+
+    Ideally ruamel.yaml would support this during configuration generation, but it's not terribly
+    easy to accomplish that way.
+    '''
+    lines = []
+    required = False
+
+    for line in rendered_config.split('\n'):
+        key = line.strip().split(':')[0]
+
+        if key in REQUIRED_SECTION_NAMES:
+            lines.append(line)
+            continue
+
+        # Upon encountering a required configuration option, skip commenting out lines until the
+        # next blank line.
+        if key in REQUIRED_KEYS:
+            required = True
+        elif not key:
+            required = False
+
+        lines.append(_comment_out_line(line) if not required else line)
+
+    return '\n'.join(lines)
+
+
+def _render_configuration(config):
+    '''
+    Given a config data structure of nested OrderedDicts, render the config as YAML and return it.
+    '''
+    dumper = yaml.YAML()
+    dumper.indent(mapping=INDENT, sequence=INDENT + SEQUENCE_INDENT, offset=INDENT)
+    rendered = io.StringIO()
+    dumper.dump(config, rendered)
+
+    return rendered.getvalue()
+
+
+def write_configuration(config_filename, rendered_config, mode=0o600):
+    '''
+    Given a target config filename and rendered config YAML, write it out to file. Create any
+    containing directories as needed.
+    '''
+    if os.path.exists(config_filename):
+        raise FileExistsError('{} already exists. Aborting.'.format(config_filename))
+
+    try:
+        os.makedirs(os.path.dirname(config_filename), mode=0o700)
+    except (FileExistsError, FileNotFoundError):
+        pass
+
+    with open(config_filename, 'w') as config_file:
+        config_file.write(rendered_config)
+
+    os.chmod(config_filename, mode)
+
+
+def add_comments_to_configuration_sequence(config, schema, indent=0):
+    '''
+    If the given config sequence's items are maps, then mine the schema for the description of the
+    map's first item, and slap that atop the sequence. Indent the comment the given number of
+    characters.
+
+    Doing this for sequences of maps results in nice comments that look like:
+
+    ```
+    things:
+          # First key description. Added by this function.
+        - key: foo
+          # Second key description. Added by add_comments_to_configuration_map().
+          other: bar
+    ```
+    '''
+    if 'map' not in schema['seq'][0]:
+        return
+
+    for field_name in config[0].keys():
+        field_schema = schema['seq'][0]['map'].get(field_name, {})
+        description = field_schema.get('desc')
+
+        # No description to use? Skip it.
+        if not field_schema or not description:
+            return
+
+        config[0].yaml_set_start_comment(description, indent=indent)
+
+        # We only want the first key's description here, as the rest of the keys get commented by
+        # add_comments_to_configuration_map().
+        return
+
+
+def add_comments_to_configuration_map(config, schema, indent=0, skip_first=False):
+    '''
+    Using descriptions from a schema as a source, add those descriptions as comments to the given
+    config mapping, before each field. Indent the comment the given number of characters.
+    '''
+    for index, field_name in enumerate(config.keys()):
+        if skip_first and index == 0:
+            continue
+
+        field_schema = schema['map'].get(field_name, {})
+        description = field_schema.get('desc')
+
+        # No description to use? Skip it.
+        if not field_schema or not description:
+            continue
+
+        config.yaml_set_comment_before_after_key(key=field_name, before=description, indent=indent)
+
+        if index > 0:
+            _insert_newline_before_comment(config, field_name)
+
+
+def generate_sample_configuration(config_filename, schema_filename):
+    '''
+    Given a target config filename and the path to a schema filename in pykwalify YAML schema
+    format, write out a sample configuration file based on that schema.
+    '''
+    schema = yaml.round_trip_load(open(schema_filename))
+    config = _schema_to_sample_configuration(schema)
+
+    write_configuration(
+        config_filename, _comment_out_optional_configuration(_render_configuration(config))
+    )

borgmatic/config/legacy.py

@@ -0,0 +1,152 @@
+from collections import OrderedDict, namedtuple
+from configparser import RawConfigParser
+
+Section_format = namedtuple('Section_format', ('name', 'options'))
+Config_option = namedtuple('Config_option', ('name', 'value_type', 'required'))
+
+
+def option(name, value_type=str, required=True):
+    '''
+    Given a config file option name, an expected type for its value, and whether it's required,
+    return a Config_option capturing that information.
+    '''
+    return Config_option(name, value_type, required)
+
+
+CONFIG_FORMAT = (
+    Section_format(
+        'location',
+        (
+            option('source_directories'),
+            option('one_file_system', value_type=bool, required=False),
+            option('remote_path', required=False),
+            option('repository'),
+        ),
+    ),
+    Section_format(
+        'storage',
+        (
+            option('encryption_passphrase', required=False),
+            option('compression', required=False),
+            option('umask', required=False),
+        ),
+    ),
+    Section_format(
+        'retention',
+        (
+            option('keep_within', required=False),
+            option('keep_hourly', int, required=False),
+            option('keep_daily', int, required=False),
+            option('keep_weekly', int, required=False),
+            option('keep_monthly', int, required=False),
+            option('keep_yearly', int, required=False),
+            option('prefix', required=False),
+        ),
+    ),
+    Section_format(
+        'consistency', (option('checks', required=False), option('check_last', required=False))
+    ),
+)
+
+
+def validate_configuration_format(parser, config_format):
+    '''
+    Given an open RawConfigParser and an expected config file format, validate that the parsed
+    configuration file has the expected sections, that any required options are present in those
+    sections, and that there aren't any unexpected options.
+
+    A section is required if any of its contained options are required.
+
+    Raise ValueError if anything is awry.
+    '''
+    section_names = set(parser.sections())
+    required_section_names = tuple(
+        section.name
+        for section in config_format
+        if any(option.required for option in section.options)
+    )
+
+    unknown_section_names = section_names - set(
+        section_format.name for section_format in config_format
+    )
+    if unknown_section_names:
+        raise ValueError(
+            'Unknown config sections found: {}'.format(', '.join(unknown_section_names))
+        )
+
+    missing_section_names = set(required_section_names) - section_names
+    if missing_section_names:
+        raise ValueError('Missing config sections: {}'.format(', '.join(missing_section_names)))
+
+    for section_format in config_format:
+        if section_format.name not in section_names:
+            continue
+
+        option_names = parser.options(section_format.name)
+        expected_options = section_format.options
+
+        unexpected_option_names = set(option_names) - set(
+            option.name for option in expected_options
+        )
+
+        if unexpected_option_names:
+            raise ValueError(
+                'Unexpected options found in config section {}: {}'.format(
+                    section_format.name, ', '.join(sorted(unexpected_option_names))
+                )
+            )
+
+        missing_option_names = tuple(
+            option.name
+            for option in expected_options
+            if option.required
+            if option.name not in option_names
+        )
+
+        if missing_option_names:
+            raise ValueError(
+                'Required options missing from config section {}: {}'.format(
+                    section_format.name, ', '.join(missing_option_names)
+                )
+            )
+
+
+def parse_section_options(parser, section_format):
+    '''
+    Given an open RawConfigParser and an expected section format, return the option values from that
+    section as a dict mapping from option name to value. Omit those options that are not present in
+    the parsed options.
+
+    Raise ValueError if any option values cannot be coerced to the expected Python data type.
+    '''
+    type_getter = {str: parser.get, int: parser.getint, bool: parser.getboolean}
+
+    return OrderedDict(
+        (option.name, type_getter[option.value_type](section_format.name, option.name))
+        for option in section_format.options
+        if parser.has_option(section_format.name, option.name)
+    )
+
+
+def parse_configuration(config_filename, config_format):
+    '''
+    Given a config filename and an expected config file format, return the parsed configuration
+    as a namedtuple with one attribute for each parsed section.
+
+    Raise IOError if the file cannot be read, or ValueError if the format is not as expected.
+    '''
+    parser = RawConfigParser()
+    if not parser.read(config_filename):
+        raise ValueError('Configuration file cannot be opened: {}'.format(config_filename))
+
+    validate_configuration_format(parser, config_format)
+
+    # Describes a parsed configuration, where each attribute is the name of a configuration file
+    # section and each value is a dict of that section's parsed options.
+    Parsed_config = namedtuple(
+        'Parsed_config', (section_format.name for section_format in config_format)
+    )
+
+    return Parsed_config(
+        *(parse_section_options(parser, section_format) for section_format in config_format)
+    )

borgmatic/config/load.py

@@ -0,0 +1,59 @@
+import logging
+import os
+
+import ruamel.yaml
+
+logger = logging.getLogger(__name__)
+
+
+def load_configuration(filename):
+    '''
+    Load the given configuration file and return its contents as a data structure of nested dicts
+    and lists.
+
+    Raise ruamel.yaml.error.YAMLError if something goes wrong parsing the YAML, or RecursionError
+    if there are too many recursive includes.
+    '''
+    yaml = ruamel.yaml.YAML(typ='safe')
+    yaml.Constructor = Include_constructor
+
+    return yaml.load(open(filename))
+
+
+def include_configuration(loader, filename_node):
+    '''
+    Load the given YAML filename (ignoring the given loader so we can use our own), and return its
+    contents as a data structure of nested dicts and lists.
+    '''
+    return load_configuration(os.path.expanduser(filename_node.value))
+
+
+class Include_constructor(ruamel.yaml.SafeConstructor):
+    '''
+    A YAML "constructor" (a ruamel.yaml concept) that supports a custom "!include" tag for including
+    separate YAML configuration files. Example syntax: `retention: !include common.yaml`
+    '''
+
+    def __init__(self, preserve_quotes=None, loader=None):
+        super(Include_constructor, self).__init__(preserve_quotes, loader)
+        self.add_constructor('!include', include_configuration)
+
+    def flatten_mapping(self, node):
+        '''
+        Support the special case of shallow merging included configuration into an existing mapping
+        using the YAML '<<' merge key. Example syntax:
+
+        ```
+        retention:
+            keep_daily: 1
+            <<: !include common.yaml
+        ```
+        '''
+        representer = ruamel.yaml.representer.SafeRepresenter()
+
+        for index, (key_node, value_node) in enumerate(node.value):
+            if key_node.tag == u'tag:yaml.org,2002:merge' and value_node.tag == '!include':
+                included_value = representer.represent_data(self.construct_object(value_node))
+                node.value[index] = (key_node, included_value)
+
+        super(Include_constructor, self).flatten_mapping(node)

borgmatic/config/schema.yaml

@@ -0,0 +1,452 @@
+name: Borgmatic configuration file schema
+version: 1
+map:
+    location:
+        desc: |
+            Where to look for files to backup, and where to store those backups. See
+            https://borgbackup.readthedocs.io/en/stable/quickstart.html and
+            https://borgbackup.readthedocs.io/en/stable/usage.html#borg-create for details.
+        required: true
+        map:
+            source_directories:
+                required: true
+                seq:
+                    - type: str
+                desc: |
+                    List of source directories to backup (required). Globs and tildes are expanded.
+                example:
+                    - /home
+                    - /etc
+                    - /var/log/syslog*
+            repositories:
+                required: true
+                seq:
+                    - type: str
+                desc: |
+                    Paths to local or remote repositories (required). Tildes are expanded. Multiple
+                    repositories are backed up to in sequence. See ssh_command for SSH options like
+                    identity file or port.
+                example:
+                    - user@backupserver:sourcehostname.borg
+            one_file_system:
+                type: bool
+                desc: Stay in same file system (do not cross mount points). Defaults to false.
+                example: true
+            numeric_owner:
+                type: bool
+                desc: Only store/extract numeric user and group identifiers. Defaults to false.
+                example: true
+            atime:
+                type: bool
+                desc: Store atime into archive. Defaults to true.
+                example: false
+            ctime:
+                type: bool
+                desc: Store ctime into archive. Defaults to true.
+                example: false
+            birthtime:
+                type: bool
+                desc: Store birthtime (creation date) into archive. Defaults to true.
+                example: false
+            read_special:
+                type: bool
+                desc: |
+                    Use Borg's --read-special flag to allow backup of block and other special
+                    devices. Use with caution, as it will lead to problems if used when
+                    backing up special devices such as /dev/zero. Defaults to false.
+                example: false
+            bsd_flags:
+                type: bool
+                desc: Record bsdflags (e.g. NODUMP, IMMUTABLE) in archive. Defaults to true.
+                example: true
+            files_cache:
+                type: str
+                desc: |
+                    Mode in which to operate the files cache. See
+                    https://borgbackup.readthedocs.io/en/stable/usage/create.html#description for
+                    details. Defaults to "ctime,size,inode".
+                example: ctime,size,inode
+            local_path:
+                type: str
+                desc: Alternate Borg local executable. Defaults to "borg".
+                example: borg1
+            remote_path:
+                type: str
+                desc: Alternate Borg remote executable. Defaults to "borg".
+                example: borg1
+            patterns:
+                seq:
+                    - type: str
+                desc: |
+                    Any paths matching these patterns are included/excluded from backups. Globs are
+                    expanded. (Tildes are not.) Note that Borg considers this option experimental.
+                    See the output of "borg help patterns" for more details. Quote any value if it
+                    contains leading punctuation, so it parses correctly.
+                example:
+                    - 'R /'
+                    - '- /home/*/.cache'
+                    - '+ /home/susan'
+                    - '- /home/*'
+            patterns_from:
+                seq:
+                    - type: str
+                desc: |
+                    Read include/exclude patterns from one or more separate named files, one pattern
+                    per line. Note that Borg considers this option experimental. See the output of
+                    "borg help patterns" for more details.
+                example:
+                    - /etc/borgmatic/patterns
+            exclude_patterns:
+                seq:
+                    - type: str
+                desc: |
+                    Any paths matching these patterns are excluded from backups. Globs and tildes
+                    are expanded. See the output of "borg help patterns" for more details.
+                example:
+                    - '*.pyc'
+                    - ~/*/.cache
+                    - /etc/ssl
+            exclude_from:
+                seq:
+                    - type: str
+                desc: |
+                    Read exclude patterns from one or more separate named files, one pattern per
+                    line. See the output of "borg help patterns" for more details.
+                example:
+                    - /etc/borgmatic/excludes
+            exclude_caches:
+                type: bool
+                desc: |
+                    Exclude directories that contain a CACHEDIR.TAG file. See
+                    http://www.brynosaurus.com/cachedir/spec.html for details. Defaults to false.
+                example: true
+            exclude_if_present:
+                type: str
+                desc: |
+                    Exclude directories that contain a file with the given filename. Defaults to not
+                    set.
+                example: .nobackup
+    storage:
+        desc: |
+            Repository storage options. See
+            https://borgbackup.readthedocs.io/en/stable/usage.html#borg-create and
+            https://borgbackup.readthedocs.io/en/stable/usage/general.html#environment-variables for
+            details.
+        map:
+            encryption_passcommand:
+                type: str
+                desc: |
+                    The standard output of this command is used to unlock the encryption key. Only
+                    use on repositories that were initialized with passcommand/repokey encryption.
+                    Note that if both encryption_passcommand and encryption_passphrase are set,
+                    then encryption_passphrase takes precedence. Defaults to not set.
+                example: "secret-tool lookup borg-repository repo-name"
+            encryption_passphrase:
+                type: str
+                desc: |
+                    Passphrase to unlock the encryption key with. Only use on repositories that were
+                    initialized with passphrase/repokey encryption. Quote the value if it contains
+                    punctuation, so it parses correctly. And backslash any quote or backslash
+                    literals as well. Defaults to not set.
+                example: "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~"
+            checkpoint_interval:
+                type: int
+                desc: |
+                    Number of seconds between each checkpoint during a long-running backup. See
+                    https://borgbackup.readthedocs.io/en/stable/faq.html#if-a-backup-stops-mid-way-does-the-already-backed-up-data-stay-there
+                    for details. Defaults to checkpoints every 1800 seconds (30 minutes).
+                example: 1800
+            chunker_params:
+                type: str
+                desc: |
+                    Specify the parameters passed to then chunker (CHUNK_MIN_EXP, CHUNK_MAX_EXP,
+                    HASH_MASK_BITS, HASH_WINDOW_SIZE). See https://borgbackup.readthedocs.io/en/stable/internals.html
+                    for details. Defaults to "19,23,21,4095".
+                example: 19,23,21,4095
+            compression:
+                type: str
+                desc: |
+                    Type of compression to use when creating archives. See
+                    https://borgbackup.readthedocs.org/en/stable/usage.html#borg-create for details.
+                    Defaults to "lz4".
+                example: lz4
+            remote_rate_limit:
+                type: int
+                desc: Remote network upload rate limit in kiBytes/second. Defaults to unlimited.
+                example: 100
+            ssh_command:
+                type: str
+                desc: |
+                    Command to use instead of "ssh". This can be used to specify ssh options.
+                    Defaults to not set.
+                example: ssh -i /path/to/private/key
+            borg_base_directory:
+                type: str
+                desc: |
+                    Base path used for various Borg directories. Defaults to $HOME, ~$USER, or ~.
+                    See https://borgbackup.readthedocs.io/en/stable/usage/general.html#environment-variables for details.
+                example: /path/to/base
+            borg_config_directory:
+                type: str
+                desc: |
+                    Path for Borg configuration files. Defaults to $borg_base_directory/.config/borg
+                example: /path/to/base/config
+            borg_cache_directory:
+                type: str
+                desc: |
+                    Path for Borg cache files. Defaults to $borg_base_directory/.cache/borg
+                example: /path/to/base/cache
+            borg_security_directory:
+                type: str
+                desc: |
+                    Path for Borg security and encryption nonce files. Defaults to $borg_base_directory/.config/borg/security
+                example: /path/to/base/config/security
+            borg_keys_directory:
+                type: str
+                desc: |
+                    Path for Borg encryption key files. Defaults to $borg_base_directory/.config/borg/keys
+                example: /path/to/base/config/keys
+            umask:
+                type: scalar
+                desc: Umask to be used for borg create. Defaults to 0077.
+                example: 0077
+            lock_wait:
+                type: int
+                desc: Maximum seconds to wait for acquiring a repository/cache lock. Defaults to 1.
+                example: 5
+            archive_name_format:
+                type: str
+                desc: |
+                    Name of the archive. Borg placeholders can be used. See the output of
+                    "borg help placeholders" for details. Defaults to
+                    "{hostname}-{now:%Y-%m-%dT%H:%M:%S.%f}". If you specify this option, you must
+                    also specify a prefix in the retention section to avoid accidental pruning of
+                    archives with a different archive name format. And you should also specify a
+                    prefix in the consistency section as well.
+                example: "{hostname}-documents-{now}"
+            relocated_repo_access_is_ok:
+                type: bool
+                desc: Bypass Borg error about a repository that has been moved. Defaults to false.
+                example: true
+            unknown_unencrypted_repo_access_is_ok:
+                type: bool
+                desc: |
+                    Bypass Borg error about a previously unknown unencrypted repository. Defaults to
+                    false.
+                example: true
+    retention:
+        desc: |
+            Retention policy for how many backups to keep in each category. See
+            https://borgbackup.readthedocs.org/en/stable/usage.html#borg-prune for details.
+            At least one of the "keep" options is required for pruning to work. See
+            https://torsion.org/borgmatic/docs/how-to/deal-with-very-large-backups/
+            if you'd like to skip pruning entirely.
+        map:
+            keep_within:
+                type: str
+                desc: Keep all archives within this time interval.
+                example: 3H
+            keep_secondly:
+                type: int
+                desc: Number of secondly archives to keep.
+                example: 60
+            keep_minutely:
+                type: int
+                desc: Number of minutely archives to keep.
+                example: 60
+            keep_hourly:
+                type: int
+                desc: Number of hourly archives to keep.
+                example: 24
+            keep_daily:
+                type: int
+                desc: Number of daily archives to keep.
+                example: 7
+            keep_weekly:
+                type: int
+                desc: Number of weekly archives to keep.
+                example: 4
+            keep_monthly:
+                type: int
+                desc: Number of monthly archives to keep.
+                example: 6
+            keep_yearly:
+                type: int
+                desc: Number of yearly archives to keep.
+                example: 1
+            prefix:
+                type: str
+                desc: |
+                    When pruning, only consider archive names starting with this prefix.
+                    Borg placeholders can be used. See the output of "borg help placeholders" for
+                    details. Defaults to "{hostname}-". Use an empty value to disable the default.
+                example: sourcehostname
+    consistency:
+        desc: |
+            Consistency checks to run after backups. See
+            https://borgbackup.readthedocs.org/en/stable/usage.html#borg-check and
+            https://borgbackup.readthedocs.org/en/stable/usage.html#borg-extract for details.
+        map:
+            checks:
+                seq:
+                    - type: str
+                      enum: ['repository', 'archives', 'data', 'extract', 'disabled']
+                      unique: true
+                desc: |
+                    List of one or more consistency checks to run: "repository", "archives", "data",
+                    and/or "extract". Defaults to "repository" and "archives". Set to "disabled" to
+                    disable all consistency checks. "repository" checks the consistency of the
+                    repository, "archives" checks all of the archives, "data" verifies the integrity
+                    of the data within the archives, and "extract" does an extraction dry-run of the
+                    most recent archive. Note that "data" implies "archives".
+                example:
+                    - repository
+                    - archives
+            check_repositories:
+                seq:
+                    - type: str
+                desc: |
+                    Paths to a subset of the repositories in the location section on which to run
+                    consistency checks. Handy in case some of your repositories are very large, and
+                    so running consistency checks on them would take too long. Defaults to running
+                    consistency checks on all repositories configured in the location section.
+                example:
+                    - user@backupserver:sourcehostname.borg
+            check_last:
+                type: int
+                desc: Restrict the number of checked archives to the last n. Applies only to the
+                      "archives" check. Defaults to checking all archives.
+                example: 3
+            prefix:
+                type: str
+                desc: |
+                    When performing the "archives" check, only consider archive names starting with
+                    this prefix. Borg placeholders can be used. See the output of
+                    "borg help placeholders" for details. Defaults to "{hostname}-". Use an empty
+                    value to disable the default.
+                example: sourcehostname
+    output:
+        desc: |
+            Options for customizing borgmatic's own output and logging.
+        map:
+            color:
+                type: bool
+                desc: |
+                    Apply color to console output. Can be overridden with --no-color command-line
+                    flag. Defaults to true.
+                example: false
+    hooks:
+        desc: |
+            Shell commands, scripts, or integrations to execute at various points during a borgmatic
+            run. IMPORTANT: All provided commands and scripts are executed with user permissions of
+            borgmatic. Do not forget to set secure permissions on this configuration file (chmod
+            0600) as well as on any script called from a hook (chmod 0700) to prevent potential
+            shell injection or privilege escalation.
+        map:
+            before_backup:
+                seq:
+                    - type: str
+                desc: |
+                    List of one or more shell commands or scripts to execute before creating a
+                    backup, run once per configuration file.
+                example:
+                    - echo "Starting a backup."
+            after_backup:
+                seq:
+                    - type: str
+                desc: |
+                    List of one or more shell commands or scripts to execute after creating a
+                    backup, run once per configuration file.
+                example:
+                    - echo "Created a backup."
+            on_error:
+                seq:
+                    - type: str
+                desc: |
+                    List of one or more shell commands or scripts to execute when an exception
+                    occurs during a backup or when running a before_backup or after_backup hook.
+                example:
+                    - echo "Error while creating a backup or running a backup hook."
+            postgresql_databases:
+                seq:
+                    - map:
+                        name:
+                            required: true
+                            type: str
+                            desc: |
+                                Database name (required if using this hook). Or "all" to dump all
+                                databases on the host.
+                            example: users
+                        hostname:
+                            type: str
+                            desc: |
+                                Database hostname to connect to. Defaults to connecting via local
+                                Unix socket.
+                            example: database.example.org
+                        port:
+                            type: int
+                            desc: Port to connect to. Defaults to 5432.
+                            example: 5433
+                        username:
+                            type: str
+                            desc: |
+                                Username with which to connect to the database. Defaults to the
+                                username of the current user. You probably want to specify the
+                                "postgres" superuser here when the database name is "all".
+                            example: dbuser
+                        password:
+                            type: str
+                            desc: |
+                                Password with which to connect to the database. Omitting a password
+                                will only work if PostgreSQL is configured to trust the configured
+                                username without a password, or you create a ~/.pgpass file.
+                            example: trustsome1
+                        format:
+                            type: str
+                            enum: ['plain', 'custom', 'directory', 'tar']
+                            desc: |
+                                Database dump output format. One of "plain", "custom", "directory",
+                                or "tar". Defaults to "custom" (unlike raw pg_dump). See
+                                https://www.postgresql.org/docs/current/app-pgdump.html for details.
+                                Note that format is ignored when the database name is "all".
+                            example: directory
+                        options:
+                            type: str
+                            desc: |
+                                Additional pg_dump/pg_dumpall options to pass directly to the dump
+                                command, without performing any validation on them. See
+                                https://www.postgresql.org/docs/current/app-pgdump.html for details.
+                            example: --role=someone
+                desc: |
+                    List of one or more PostgreSQL databases to dump before creating a backup,
+                    run once per configuration file. The database dumps are added to your source
+                    directories at runtime, backed up, and then removed afterwards. Requires
+                    pg_dump/pg_dumpall/pg_restore commands. See
+                    https://www.postgresql.org/docs/current/app-pgdump.html for details.
+            healthchecks:
+                type: str
+                desc: |
+                    Healthchecks ping URL or UUID to notify when a backup begins, ends, or errors.
+                    Create an account at https://healthchecks.io if you'd like to use this service.
+                example:
+                    https://hc-ping.com/your-uuid-here
+            before_everything:
+                seq:
+                    - type: str
+                desc: |
+                    List of one or more shell commands or scripts to execute before running all
+                    actions (if one of them is "create"), run once before all configuration files.
+                example:
+                    - echo "Starting actions."
+            after_everything:
+                seq:
+                    - type: str
+                desc: |
+                    List of one or more shell commands or scripts to execute after running all
+                    actions (if one of them is "create"), run once after all configuration files.
+                example:
+                    - echo "Completed actions."
+            umask:
+                type: scalar
+                desc: Umask used when executing hooks. Defaults to the umask that borgmatic is run with.
+                example: 0077

borgmatic/config/validate.py

@@ -0,0 +1,155 @@
+import logging
+
+import pkg_resources
+import pykwalify.core
+import pykwalify.errors
+import ruamel.yaml
+
+from borgmatic.config import load
+
+
+def schema_filename():
+    '''
+    Path to the installed YAML configuration schema file, used to validate and parse the
+    configuration.
+    '''
+    return pkg_resources.resource_filename('borgmatic', 'config/schema.yaml')
+
+
+class Validation_error(ValueError):
+    '''
+    A collection of error message strings generated when attempting to validate a particular
+    configurartion file.
+    '''
+
+    def __init__(self, config_filename, error_messages):
+        self.config_filename = config_filename
+        self.error_messages = error_messages
+
+    def __str__(self):
+        '''
+        Render a validation error as a user-facing string.
+        '''
+        return 'An error occurred while parsing a configuration file at {}:\n'.format(
+            self.config_filename
+        ) + '\n'.join(self.error_messages)
+
+
+def apply_logical_validation(config_filename, parsed_configuration):
+    '''
+    Given a parsed and schematically valid configuration as a data structure of nested dicts (see
+    below), run through any additional logical validation checks. If there are any such validation
+    problems, raise a Validation_error.
+    '''
+    archive_name_format = parsed_configuration.get('storage', {}).get('archive_name_format')
+    prefix = parsed_configuration.get('retention', {}).get('prefix')
+
+    if archive_name_format and not prefix:
+        raise Validation_error(
+            config_filename,
+            ('If you provide an archive_name_format, you must also specify a retention prefix.',),
+        )
+
+    location_repositories = parsed_configuration.get('location', {}).get('repositories')
+    check_repositories = parsed_configuration.get('consistency', {}).get('check_repositories', [])
+    for repository in check_repositories:
+        if repository not in location_repositories:
+            raise Validation_error(
+                config_filename,
+                (
+                    'Unknown repository in the consistency section\'s check_repositories: {}'.format(
+                        repository
+                    ),
+                ),
+            )
+
+
+def remove_examples(schema):
+    '''
+    pykwalify gets angry if the example field is not a string. So rather than bend to its will,
+    remove all examples from the given schema before passing the schema to pykwalify.
+    '''
+    if 'map' in schema:
+        for item_name, item_schema in schema['map'].items():
+            item_schema.pop('example', None)
+            remove_examples(item_schema)
+    elif 'seq' in schema:
+        for item_schema in schema['seq']:
+            item_schema.pop('example', None)
+            remove_examples(item_schema)
+
+    return schema
+
+
+def parse_configuration(config_filename, schema_filename):
+    '''
+    Given the path to a config filename in YAML format and the path to a schema filename in
+    pykwalify YAML schema format, return the parsed configuration as a data structure of nested
+    dicts and lists corresponding to the schema. Example return value:
+
+       {'location': {'source_directories': ['/home', '/etc'], 'repository': 'hostname.borg'},
+       'retention': {'keep_daily': 7}, 'consistency': {'checks': ['repository', 'archives']}}
+
+    Raise FileNotFoundError if the file does not exist, PermissionError if the user does not
+    have permissions to read the file, or Validation_error if the config does not match the schema.
+    '''
+    logging.getLogger('pykwalify').setLevel(logging.ERROR)
+
+    try:
+        config = load.load_configuration(config_filename)
+        schema = load.load_configuration(schema_filename)
+    except (ruamel.yaml.error.YAMLError, RecursionError) as error:
+        raise Validation_error(config_filename, (str(error),))
+
+    validator = pykwalify.core.Core(source_data=config, schema_data=remove_examples(schema))
+    parsed_result = validator.validate(raise_exception=False)
+
+    if validator.validation_errors:
+        raise Validation_error(config_filename, validator.validation_errors)
+
+    apply_logical_validation(config_filename, parsed_result)
+
+    return parsed_result
+
+
+def guard_configuration_contains_repository(repository, configurations):
+    '''
+    Given a repository path and a dict mapping from config filename to corresponding parsed config
+    dict, ensure that the repository is declared exactly once in all of the configurations.
+
+    If no repository is given, then error if there are multiple configured repositories.
+
+    Raise ValueError if the repository is not found in a configuration, or is declared multiple
+    times.
+    '''
+    if not repository:
+        count = len(
+            tuple(
+                config_repository
+                for config in configurations.values()
+                for config_repository in config['location']['repositories']
+            )
+        )
+
+        if count > 1:
+            raise ValueError(
+                'Can\'t determine which repository to use. Use --repository option to disambiguate'.format(
+                    repository
+                )
+            )
+
+        return
+
+    count = len(
+        tuple(
+            config_repository
+            for config in configurations.values()
+            for config_repository in config['location']['repositories']
+            if repository == config_repository
+        )
+    )
+
+    if count == 0:
+        raise ValueError('Repository {} not found in configuration files'.format(repository))
+    if count > 1:
+        raise ValueError('Repository {} found in multiple configuration files'.format(repository))

borgmatic/execute.py

@@ -0,0 +1,117 @@
+import logging
+import os
+import subprocess
+
+logger = logging.getLogger(__name__)
+
+
+ERROR_OUTPUT_MAX_LINE_COUNT = 25
+BORG_ERROR_EXIT_CODE = 2
+
+
+def exit_code_indicates_error(command, exit_code, error_on_warnings=False):
+    '''
+    Return True if the given exit code from running the command corresponds to an error.
+    '''
+    # If we're running something other than Borg, treat all non-zero exit codes as errors.
+    if 'borg' in command[0] and not error_on_warnings:
+        return bool(exit_code >= BORG_ERROR_EXIT_CODE)
+
+    return bool(exit_code != 0)
+
+
+def execute_and_log_output(
+    full_command, output_log_level, shell, environment, working_directory, error_on_warnings
+):
+    last_lines = []
+    process = subprocess.Popen(
+        full_command,
+        stdout=subprocess.PIPE,
+        stderr=subprocess.STDOUT,
+        shell=shell,
+        env=environment,
+        cwd=working_directory,
+    )
+
+    while process.poll() is None:
+        line = process.stdout.readline().rstrip().decode()
+        if not line:
+            continue
+
+        # Keep the last few lines of output in case the command errors, and we need the output for
+        # the exception below.
+        last_lines.append(line)
+        if len(last_lines) > ERROR_OUTPUT_MAX_LINE_COUNT:
+            last_lines.pop(0)
+
+        logger.log(output_log_level, line)
+
+    remaining_output = process.stdout.read().rstrip().decode()
+    if remaining_output:  # pragma: no cover
+        logger.log(output_log_level, remaining_output)
+
+    exit_code = process.poll()
+
+    if exit_code_indicates_error(full_command, exit_code, error_on_warnings):
+        # If an error occurs, include its output in the raised exception so that we don't
+        # inadvertently hide error output.
+        if len(last_lines) == ERROR_OUTPUT_MAX_LINE_COUNT:
+            last_lines.insert(0, '...')
+
+        raise subprocess.CalledProcessError(
+            exit_code, ' '.join(full_command), '\n'.join(last_lines)
+        )
+
+
+def execute_command(
+    full_command,
+    output_log_level=logging.INFO,
+    shell=False,
+    extra_environment=None,
+    working_directory=None,
+    error_on_warnings=False,
+):
+    '''
+    Execute the given command (a sequence of command/argument strings) and log its output at the
+    given log level. If output log level is None, instead capture and return the output. If
+    shell is True, execute the command within a shell. If an extra environment dict is given, then
+    use it to augment the current environment, and pass the result into the command. If a working
+    directory is given, use that as the present working directory when running the command.
+
+    Raise subprocesses.CalledProcessError if an error occurs while running the command.
+    '''
+    logger.debug(' '.join(full_command))
+    environment = {**os.environ, **extra_environment} if extra_environment else None
+
+    if output_log_level is None:
+        output = subprocess.check_output(
+            full_command, shell=shell, env=environment, cwd=working_directory
+        )
+        return output.decode() if output is not None else None
+    else:
+        execute_and_log_output(
+            full_command,
+            output_log_level,
+            shell=shell,
+            environment=environment,
+            working_directory=working_directory,
+            error_on_warnings=error_on_warnings,
+        )
+
+
+def execute_command_without_capture(full_command, working_directory=None, error_on_warnings=False):
+    '''
+    Execute the given command (a sequence of command/argument strings), but don't capture or log its
+    output in any way. This is necessary for commands that monkey with the terminal (e.g. progress
+    display) or provide interactive prompts.
+
+    If a working directory is given, use that as the present working directory when running the
+    command.
+    '''
+    logger.debug(' '.join(full_command))
+
+    try:
+        subprocess.check_call(full_command, cwd=working_directory)
+    except subprocess.CalledProcessError as error:
+        if exit_code_indicates_error(full_command, error.returncode, error_on_warnings):
+            raise

borgmatic/hooks/command.py

@@ -0,0 +1,71 @@
+import logging
+import os
+
+from borgmatic import execute
+
+logger = logging.getLogger(__name__)
+
+
+def interpolate_context(command, context):
+    '''
+    Given a single hook command and a dict of context names/values, interpolate the values by
+    "{name}" into the command and return the result.
+    '''
+    for name, value in context.items():
+        command = command.replace('{%s}' % name, str(value))
+
+    return command
+
+
+def execute_hook(commands, umask, config_filename, description, dry_run, **context):
+    '''
+    Given a list of hook commands to execute, a umask to execute with (or None), a config filename,
+    a hook description, and whether this is a dry run, run the given commands. Or, don't run them
+    if this is a dry run.
+
+    The context contains optional values interpolated by name into the hook commands. Currently,
+    this only applies to the on_error hook.
+
+    Raise ValueError if the umask cannot be parsed.
+    Raise subprocesses.CalledProcessError if an error occurs in a hook.
+    '''
+    if not commands:
+        logger.debug('{}: No commands to run for {} hook'.format(config_filename, description))
+        return
+
+    dry_run_label = ' (dry run; not actually running hooks)' if dry_run else ''
+
+    context['configuration_filename'] = config_filename
+    commands = [interpolate_context(command, context) for command in commands]
+
+    if len(commands) == 1:
+        logger.info(
+            '{}: Running command for {} hook{}'.format(config_filename, description, dry_run_label)
+        )
+    else:
+        logger.info(
+            '{}: Running {} commands for {} hook{}'.format(
+                config_filename, len(commands), description, dry_run_label
+            )
+        )
+
+    if umask:
+        parsed_umask = int(str(umask), 8)
+        logger.debug('{}: Set hook umask to {}'.format(config_filename, oct(parsed_umask)))
+        original_umask = os.umask(parsed_umask)
+    else:
+        original_umask = None
+
+    try:
+        for command in commands:
+            if not dry_run:
+                execute.execute_command(
+                    [command],
+                    output_log_level=logging.ERROR
+                    if description == 'on-error'
+                    else logging.WARNING,
+                    shell=True,
+                )
+    finally:
+        if original_umask:
+            os.umask(original_umask)

borgmatic/hooks/healthchecks.py

@@ -0,0 +1,36 @@
+import logging
+
+import requests
+
+logger = logging.getLogger(__name__)
+
+
+def ping_healthchecks(ping_url_or_uuid, config_filename, dry_run, append=None):
+    '''
+    Ping the given healthchecks.io URL or UUID, appending the append string if any. Use the given
+    configuration filename in any log entries. If this is a dry run, then don't actually ping
+    anything.
+    '''
+    if not ping_url_or_uuid:
+        logger.debug('{}: No healthchecks hook set'.format(config_filename))
+        return
+
+    ping_url = (
+        ping_url_or_uuid
+        if ping_url_or_uuid.startswith('http')
+        else 'https://hc-ping.com/{}'.format(ping_url_or_uuid)
+    )
+    dry_run_label = ' (dry run; not actually pinging)' if dry_run else ''
+
+    if append:
+        ping_url = '{}/{}'.format(ping_url, append)
+
+    logger.info(
+        '{}: Pinging healthchecks.io{}{}'.format(
+            config_filename, ' ' + append if append else '', dry_run_label
+        )
+    )
+    logger.debug('{}: Using healthchecks.io ping URL {}'.format(config_filename, ping_url))
+
+    logging.getLogger('urllib3').setLevel(logging.ERROR)
+    requests.get(ping_url)

borgmatic/hooks/postgresql.py

@@ -0,0 +1,184 @@
+import glob
+import logging
+import os
+
+from borgmatic.execute import execute_command
+
+DUMP_PATH = '~/.borgmatic/postgresql_databases'
+logger = logging.getLogger(__name__)
+
+
+def make_database_dump_filename(name, hostname=None):
+    '''
+    Based on the given database name and hostname, return a filename to use for the database dump.
+
+    Raise ValueError if the database name is invalid.
+    '''
+    if os.path.sep in name:
+        raise ValueError('Invalid database name {}'.format(name))
+
+    return os.path.join(os.path.expanduser(DUMP_PATH), hostname or 'localhost', name)
+
+
+def dump_databases(databases, log_prefix, dry_run):
+    '''
+    Dump the given PostgreSQL databases to disk. The databases are supplied as a sequence of dicts,
+    one dict describing each database as per the configuration schema. Use the given log prefix in
+    any log entries. If this is a dry run, then don't actually dump anything.
+    '''
+    if not databases:
+        logger.debug('{}: No PostgreSQL databases configured'.format(log_prefix))
+        return
+
+    dry_run_label = ' (dry run; not actually dumping anything)' if dry_run else ''
+
+    logger.info('{}: Dumping PostgreSQL databases{}'.format(log_prefix, dry_run_label))
+
+    for database in databases:
+        name = database['name']
+        dump_filename = make_database_dump_filename(name, database.get('hostname'))
+        all_databases = bool(name == 'all')
+        command = (
+            ('pg_dumpall' if all_databases else 'pg_dump', '--no-password', '--clean')
+            + ('--file', dump_filename)
+            + (('--host', database['hostname']) if 'hostname' in database else ())
+            + (('--port', str(database['port'])) if 'port' in database else ())
+            + (('--username', database['username']) if 'username' in database else ())
+            + (() if all_databases else ('--format', database.get('format', 'custom')))
+            + (tuple(database['options'].split(' ')) if 'options' in database else ())
+            + (() if all_databases else (name,))
+        )
+        extra_environment = {'PGPASSWORD': database['password']} if 'password' in database else None
+
+        logger.debug('{}: Dumping PostgreSQL database {}{}'.format(log_prefix, name, dry_run_label))
+        if not dry_run:
+            os.makedirs(os.path.dirname(dump_filename), mode=0o700, exist_ok=True)
+            execute_command(command, extra_environment=extra_environment)
+
+
+def remove_database_dumps(databases, log_prefix, dry_run):
+    '''
+    Remove the database dumps for the given databases. The databases are supplied as a sequence of
+    dicts, one dict describing each database as per the configuration schema. Use the log prefix in
+    any log entries. If this is a dry run, then don't actually remove anything.
+    '''
+    if not databases:
+        logger.debug('{}: No PostgreSQL databases configured'.format(log_prefix))
+        return
+
+    dry_run_label = ' (dry run; not actually removing anything)' if dry_run else ''
+
+    logger.info('{}: Removing PostgreSQL database dumps{}'.format(log_prefix, dry_run_label))
+
+    for database in databases:
+        dump_filename = make_database_dump_filename(database['name'], database.get('hostname'))
+
+        logger.debug(
+            '{}: Removing PostgreSQL database dump {} from {}{}'.format(
+                log_prefix, database['name'], dump_filename, dry_run_label
+            )
+        )
+        if dry_run:
+            continue
+
+        os.remove(dump_filename)
+        dump_path = os.path.dirname(dump_filename)
+
+        if len(os.listdir(dump_path)) == 0:
+            os.rmdir(dump_path)
+
+
+def make_database_dump_patterns(names):
+    '''
+    Given a sequence of database names, return the corresponding glob patterns to match the database
+    dumps in an archive. An empty sequence of names indicates that the patterns should match all
+    dumps.
+    '''
+    return [make_database_dump_filename(name, hostname='*') for name in (names or ['*'])]
+
+
+def convert_glob_patterns_to_borg_patterns(patterns):
+    '''
+    Convert a sequence of shell glob patterns like "/etc/*" to the corresponding Borg archive
+    patterns like "sh:etc/*".
+    '''
+    return ['sh:{}'.format(pattern.lstrip(os.path.sep)) for pattern in patterns]
+
+
+def get_database_names_from_dumps(patterns):
+    '''
+    Given a sequence of database dump patterns, find the corresponding database dumps on disk and
+    return the database names from their filenames.
+    '''
+    return [os.path.basename(dump_path) for pattern in patterns for dump_path in glob.glob(pattern)]
+
+
+def get_database_configurations(databases, names):
+    '''
+    Given the full database configuration dicts as per the configuration schema, and a sequence of
+    database names, filter down and yield the configuration for just the named databases.
+    Additionally, if a database configuration is named "all", project out that configuration for
+    each named database.
+
+    Raise ValueError if one of the database names cannot be matched to a database in borgmatic's
+    database configuration.
+    '''
+    named_databases = {database['name']: database for database in databases}
+
+    for name in names:
+        database = named_databases.get(name)
+        if database:
+            yield database
+            continue
+
+        if 'all' in named_databases:
+            yield {**named_databases['all'], **{'name': name}}
+            continue
+
+        raise ValueError(
+            'Cannot restore database "{}", as it is not defined in borgmatic\'s configuration'.format(
+                name
+            )
+        )
+
+
+def restore_database_dumps(databases, log_prefix, dry_run):
+    '''
+    Restore the given PostgreSQL databases from disk. The databases are supplied as a sequence of
+    dicts, one dict describing each database as per the configuration schema. Use the given log
+    prefix in any log entries. If this is a dry run, then don't actually restore anything.
+    '''
+    if not databases:
+        logger.debug('{}: No PostgreSQL databases configured'.format(log_prefix))
+        return
+
+    dry_run_label = ' (dry run; not actually restoring anything)' if dry_run else ''
+
+    for database in databases:
+        dump_filename = make_database_dump_filename(database['name'], database.get('hostname'))
+        restore_command = (
+            ('pg_restore', '--no-password', '--clean', '--if-exists', '--exit-on-error')
+            + (('--host', database['hostname']) if 'hostname' in database else ())
+            + (('--port', str(database['port'])) if 'port' in database else ())
+            + (('--username', database['username']) if 'username' in database else ())
+            + ('--dbname', database['name'])
+            + (dump_filename,)
+        )
+        extra_environment = {'PGPASSWORD': database['password']} if 'password' in database else None
+        analyze_command = (
+            ('psql', '--no-password', '--quiet')
+            + (('--host', database['hostname']) if 'hostname' in database else ())
+            + (('--port', str(database['port'])) if 'port' in database else ())
+            + (('--username', database['username']) if 'username' in database else ())
+            + ('--dbname', database['name'])
+            + ('--command', 'ANALYZE')
+        )
+
+        logger.debug(
+            '{}: Restoring PostgreSQL database {}{}'.format(
+                log_prefix, database['name'], dry_run_label
+            )
+        )
+        if not dry_run:
+            execute_command(restore_command, extra_environment=extra_environment)
+            execute_command(analyze_command, extra_environment=extra_environment)

borgmatic/logger.py

@@ -0,0 +1,101 @@
+import logging
+import os
+import sys
+
+import colorama
+
+
+def to_bool(arg):
+    '''
+    Return a boolean value based on `arg`.
+    '''
+    if arg is None or isinstance(arg, bool):
+        return arg
+
+    if isinstance(arg, str):
+        arg = arg.lower()
+
+    if arg in ('yes', 'on', '1', 'true', 1):
+        return True
+
+    return False
+
+
+def interactive_console():
+    '''
+    Return whether the current console is "interactive". Meaning: Capable of
+    user input and not just something like a cron job.
+    '''
+    return sys.stdout.isatty() and os.environ.get('TERM') != 'dumb'
+
+
+def should_do_markup(no_color, configs):
+    '''
+    Given the value of the command-line no-color argument, and a dict of configuration filename to
+    corresponding parsed configuration, determine if we should enable colorama marking up.
+    '''
+    if no_color:
+        return False
+
+    if any(config.get('output', {}).get('color') is False for config in configs.values()):
+        return False
+
+    py_colors = os.environ.get('PY_COLORS', None)
+
+    if py_colors is not None:
+        return to_bool(py_colors)
+
+    return interactive_console()
+
+
+LOG_LEVEL_TO_COLOR = {
+    logging.CRITICAL: colorama.Fore.RED,
+    logging.ERROR: colorama.Fore.RED,
+    logging.WARN: colorama.Fore.YELLOW,
+    logging.INFO: colorama.Fore.GREEN,
+    logging.DEBUG: colorama.Fore.CYAN,
+}
+
+
+class Console_color_formatter(logging.Formatter):
+    def format(self, record):
+        color = LOG_LEVEL_TO_COLOR.get(record.levelno)
+        return color_text(color, record.msg)
+
+
+def color_text(color, message):
+    '''
+    Give colored text.
+    '''
+    if not color:
+        return message
+
+    return '{}{}{}'.format(color, message, colorama.Style.RESET_ALL)
+
+
+def configure_logging(console_log_level, syslog_log_level=None):
+    '''
+    Configure logging to go to both the console and syslog. Use the given log levels, respectively.
+    '''
+    if syslog_log_level is None:
+        syslog_log_level = console_log_level
+
+    console_handler = logging.StreamHandler()
+    console_handler.setFormatter(Console_color_formatter())
+    console_handler.setLevel(console_log_level)
+
+    syslog_path = None
+    if os.path.exists('/dev/log'):
+        syslog_path = '/dev/log'
+    elif os.path.exists('/var/run/syslog'):
+        syslog_path = '/var/run/syslog'
+
+    if syslog_path and not interactive_console():
+        syslog_handler = logging.handlers.SysLogHandler(address=syslog_path)
+        syslog_handler.setFormatter(logging.Formatter('borgmatic: %(levelname)s %(message)s'))
+        syslog_handler.setLevel(syslog_log_level)
+        handlers = (console_handler, syslog_handler)
+    else:
+        handlers = (console_handler,)
+
+    logging.basicConfig(level=min(console_log_level, syslog_log_level), handlers=handlers)

borgmatic/signals.py

@@ -0,0 +1,18 @@
+import os
+import signal
+
+
+def _handle_signal(signal_number, frame):  # pragma: no cover
+    '''
+    Send the signal to all processes in borgmatic's process group, which includes child process.
+    '''
+    os.killpg(os.getpgrp(), signal_number)
+
+
+def configure_signals():  # pragma: no cover
+    '''
+    Configure borgmatic's signal handlers to pass relevant signals through to any child processes
+    like Borg. Note that SIGINT gets passed through even without these changes.
+    '''
+    for signal_number in (signal.SIGHUP, signal.SIGTERM, signal.SIGUSR1, signal.SIGUSR2):
+        signal.signal(signal_number, _handle_signal)

borgmatic/verbosity.py

@@ -0,0 +1,16 @@
+import logging
+
+VERBOSITY_WARNING = 0
+VERBOSITY_SOME = 1
+VERBOSITY_LOTS = 2
+
+
+def verbosity_to_log_level(verbosity):
+    '''
+    Given a borgmatic verbosity value, return the corresponding Python log level.
+    '''
+    return {
+        VERBOSITY_WARNING: logging.WARNING,
+        VERBOSITY_SOME: logging.INFO,
+        VERBOSITY_LOTS: logging.DEBUG,
+    }.get(verbosity, logging.WARNING)

docs/Dockerfile

@@ -0,0 +1,31 @@
+FROM python:3.7.4-alpine3.10 as borgmatic
+
+COPY . /app
+RUN pip install --no-cache /app && generate-borgmatic-config && chmod +r /etc/borgmatic/config.yaml
+RUN borgmatic --help > /command-line.txt \
+    && for action in init prune create check extract restore list info; do \
+           echo -e "\n--------------------------------------------------------------------------------\n" >> /command-line.txt \
+           && borgmatic "$action" --help >> /command-line.txt; done
+
+FROM node:12.10.0-alpine as html
+
+ARG ENVIRONMENT=production
+
+WORKDIR /source
+
+RUN npm install @11ty/eleventy \
+    @11ty/eleventy-plugin-syntaxhighlight \
+    @11ty/eleventy-plugin-inclusive-language \
+    markdown-it \
+    markdown-it-anchor \
+    markdown-it-replace-link
+COPY --from=borgmatic /etc/borgmatic/config.yaml /source/docs/_includes/borgmatic/config.yaml
+COPY --from=borgmatic /command-line.txt /source/docs/_includes/borgmatic/command-line.txt
+COPY . /source
+RUN NODE_ENV=${ENVIRONMENT} npx eleventy --input=/source/docs --output=/output/docs \
+  && mv /output/docs/index.html /output/index.html
+
+FROM nginx:1.16.1-alpine
+
+COPY --from=html /output /usr/share/nginx/html
+COPY --from=borgmatic /etc/borgmatic/config.yaml /usr/share/nginx/html/docs/reference/config.yaml

docs/README.md

@@ -0,0 +1 @@
+../README.md

docs/_data/layout.json

@@ -0,0 +1 @@
+"layouts/main.njk"

docs/_includes/asciinema.css

@@ -0,0 +1,3 @@
+.asciicast > iframe {
+    width: 100% !important;
+}

docs/_includes/components/external-links.css

@@ -0,0 +1,12 @@
+/* External links */
+a[href^="http://"]:not(.minilink):not(.elv-externalexempt),
+a[href^="https://"]:not(.minilink):not(.elv-externalexempt), 
+a[href^="//"]:not(.minilink):not(.elv-externalexempt) {
+	text-decoration-color: inherit;
+}
+/* External link hovers */
+a[href^="http://"]:not(.minilink):not(.elv-externalexempt):hover,
+a[href^="https://"]:not(.minilink):not(.elv-externalexempt):hover, 
+a[href^="//"]:not(.minilink):not(.elv-externalexempt):hover {
+	text-decoration-color: #00bcd4;
+}

docs/_includes/components/info-blocks.css

@@ -0,0 +1,34 @@
+/* Warning */
+.elv-info {
+	line-height: 1.5;
+	padding: 0.8125em 1em 0.75em; /* 13px 16px 12px /16 */
+	margin-left: -1rem;
+	margin-right: -1rem;
+	margin-bottom: 2em;
+	background-color: #dff7ff;
+}
+.elv-info:before {
+	content: "ℹ️ ";
+}
+.elv-info-warn {
+	background-color: #ffa;
+}
+.elv-info-warn:before {
+	content: "⚠️ ";
+}
+.elv-info:first-child {
+	margin-top: 0;
+}
+body > .elv-info {
+	margin-left: 0;
+	margin-right: 0;
+	padding: .5rem 1rem;
+}
+@media (min-width: 37.5em) and (min-height: 25em) { /* 600px / 400px */
+	body > .elv-info-sticky {
+		position: sticky;
+		top: 0;
+		z-index: 2;
+		box-shadow: 0 3px 0 0 rgba(0,0,0,.08);
+	}
+}

docs/_includes/components/lists.css

@@ -0,0 +1,126 @@
+/* Buzzwords */
+@keyframes rainbow {
+	0% { background-position: 0% 50%; }
+	50% { background-position: 100% 50%; }
+	100% { background-position: 0% 50%; }
+}
+.buzzword-list,
+.inlinelist {
+	padding: 0;
+}
+.inlinelist:first-child:last-child {
+	margin: 0;
+}
+.buzzword,
+.buzzword-list li,
+.inlinelist .inlinelist-item {
+	display: inline;
+	-webkit-box-decoration-break: clone;
+	box-decoration-break: clone;
+	font-family: Georgia, serif;
+	font-size: 116%;
+	white-space: normal;
+	line-height: 1.85;
+	padding: .2em .5em;
+	margin: 4px 4px 4px 0;
+	transition: .15s linear outline;
+}
+.inlinelist .inlinelist-item.active {
+	background-color: #222;
+	color: #fff;
+	font-weight: inherit;
+}
+.inlinelist .inlinelist-item.active :link,
+.inlinelist .inlinelist-item.active :visited {
+	color: #fff;
+}
+.inlinelist .inlinelist-item code {
+	background-color: transparent;
+}
+a.buzzword {
+	text-decoration: underline;
+}
+.buzzword-list a,
+.inlinelist a {
+	text-decoration: none;
+}
+.inlinelist .inlinelist-item {
+	font-size: 100%;
+	line-height: 2;
+}
+@supports not(-webkit-box-decoration-break: clone) {
+	.buzzword,
+	.buzzword-list li,
+	.inlinelist .inlinelist-item {
+		display: inline-block;
+	}
+}
+.buzzword-list li,
+.buzzword {
+	background-color: #f7f7f7;
+}
+.inlinelist .inlinelist-item {
+	background-color: #e9e9e9;
+}
+.inlinelist .inlinelist-item:hover,
+.inlinelist .inlinelist-item:focus,
+.buzzword-list li:hover,
+.buzzword-list li:focus,
+.buzzword:hover,
+.buzzword:focus {
+	position: relative;
+	background-image: linear-gradient(238deg, #ff0000, #ff8000, #ffff00, #80ff00, #00ff00, #00ff80, #00ffff, #0080ff, #0000ff, #8000ff, #ff0080);
+	background-size: 1200% 1200%;
+	color: #fff;
+	text-shadow: 0 0 2px rgba(0,0,0,.9);
+	animation: rainbow 1.6s infinite;
+}
+.inlinelist .inlinelist-item:hover a,
+.inlinelist .inlinelist-item:focus a,
+.buzzword-list li:hover a,
+.buzzword-list li:focus a,
+a.buzzword:hover,
+a.buzzword:focus {
+	color: #fff;
+	text-decoration: none;
+}
+/*
+I wish there were a PE friendly way to do this but media queries don’t work work with @supports
+@media (prefers-reduced-motion: no-preference) {
+	.buzzword:hover,
+	.buzzword:focus {
+		animation: rainbow 1s infinite;
+	}
+}*/
+.buzzword-list li:hover:after,
+.buzzword-list li:focus:after,
+.buzzword:hover:after,
+.buzzword:focus:after {
+	font-family: system-ui, sans-serif;
+	content: "Buzzword alert!!!";
+	position: absolute;
+	left: 0;
+	top: 0;
+	max-width: 8em;
+	color: #f00;
+	font-weight: 700;
+	text-transform: uppercase;
+	transform: rotate(-10deg) translate(-25%, -125%);
+	text-shadow: 1px 1px 5px rgba(0,0,0,.6);
+	line-height: 1.2;
+	pointer-events: none;
+}
+main h2 .buzzword,
+main h3 .buzzword,
+main p .buzzword {
+	padding: 0px 7px;
+	font-size: 1em; /* 18px /18 */
+	margin: 0;
+	line-height: 1.444444444444; /* 26px /18 */
+	font-family: inherit;
+}
+main h2 a.buzzword,
+main h3 a.buzzword,
+main p a.buzzword {
+	text-decoration: underline;
+}

docs/_includes/components/minilink.css

@@ -0,0 +1,40 @@
+/* Mini link */
+.minilink {
+	display: inline-block;
+	padding: .125em .375em;
+	text-transform: uppercase;
+	font-size: 0.875rem; /* 14px /16 */
+	text-decoration: none;
+	background-color: #ddd;
+	border-radius: 0.1875em; /* 3px /16 */
+	font-weight: 500;
+	margin: 0 0.4285714285714em 0.07142857142857em 0; /* 0 6px 1px 0 /14 */
+	line-height: 1.285714285714; /* 18px /14 */
+	font-family: system-ui, sans-serif;
+}
+.minilink[href] {
+	box-shadow: 0 1px 1px 0 rgba(0,0,0,.5);
+}
+.minilink[href]:hover,
+.minilink[href]:focus {
+	background-color: #bbb;
+}
+pre + .minilink {
+	color: #fff;
+	border-radius: 0 0 0.2857142857143em 0.2857142857143em; /* 4px /14 */
+	float: right;
+	background-color: #444;
+	color: #fff;
+}
+pre[class*=language-] + .minilink {
+	position: relative;
+	top: -0.7142857142857em; /* -10px /14 */
+}
+p.minilink {
+	float: right;
+	margin-left: 2em;
+	margin-bottom: 2em;
+}
+.minilink + pre[class*=language-] {
+	clear: both;
+}

docs/_includes/components/suggestion-form.css

@@ -0,0 +1,18 @@
+#suggestion-form textarea {
+	font-family: sans-serif;
+	width: 100%;
+}
+
+#suggestion-form label {
+	font-weight: bold;
+}
+
+#suggestion-form input[type=email] {
+	font-size: 16px;
+	width: 100%;
+}
+
+#suggestion-form .form-error {
+        color: red;
+}
+

docs/_includes/components/suggestion-form.html

@@ -0,0 +1,33 @@
+<h2>Improve this documentation</h2>
+
+<p>Have an idea on how to make this documentation even better? Send your
+feedback below! (But if you need help installing or using borgmatic, please
+use our <a href="https://torsion.org/borgmatic/#issues">issue tracker</a>
+instead.)</p>
+
+<form id="suggestion-form">
+    <div><label for="suggestion">Suggestion</label></div>
+    <textarea id="suggestion" rows="8" cols="60" name="suggestion"></textarea>
+    <div data-sk-error="suggestion" class="form-error"></div>
+    <input id="_page" type="hidden" name="_page">
+    <input id="_subject" type="hidden" name="_subject" value="borgmatic documentation suggestion">
+    <br />
+    <label for="email">Email address</label>
+    <div><input id="email" type="email" name="email" placeholder="Only required if you want a response!"></div>
+    <div data-sk-error="email" class="form-error"></div>
+    <br />
+    <div><button type="submit">Send</button></div>
+    <br />
+</form>
+
+<script>
+    document.getElementById('_page').value = window.location.href;
+    window.sk=window.sk||function(){(sk.q=sk.q||[]).push(arguments)};
+  
+    sk('form', 'init', {
+        id: '1d536680ab96',
+        element: '#suggestion-form'
+    });
+</script>
+
+<script defer src="https://js.statickit.com/statickit.js"></script>

docs/_includes/components/toc.css

@@ -0,0 +1,63 @@
+.elv-toc {
+	font-size: 1rem; /* Reset */
+}
+@media (min-width: 64em) { /* 1024px */
+	.elv-toc {
+		position: absolute;
+		left: -17rem;
+		width: 16rem;
+	}
+}
+
+
+.elv-toc-list {
+	padding-left: 0;
+	padding-right: 0;
+	list-style: none;
+}
+/* Nested lists */
+.elv-toc-list ul {
+	padding: 0;
+	display: none;
+	margin-bottom: 1.5em;
+	list-style: none;
+}
+.elv-toc-list ul li {
+	padding-left: 0.875em; /* 14px /16 */
+}
+@media (min-width: 64em) and (min-height: 48em) { /* 1024 x 768px */
+	.elv-toc-list ul {
+		display: block;
+	}
+}
+
+/* List items */
+.elv-toc-list a:not(:hover) {
+	text-decoration: none;
+}
+.elv-toc-list li {
+	padding-top: 0;
+	padding-bottom: 0;
+	margin: .1em 0 .5em;
+}
+/* Top level links */
+.elv-toc-list > li > a {
+	font-weight: 400;
+	font-size: 1.0625em; /* 17px /16 */
+	color: #222;
+}
+
+/* Active links */
+.elv-toc-list li.elv-toc-active > a {
+	font-weight: 700;
+	text-decoration: underline;
+}
+.elv-toc-active > a:after {
+	content: " ⬅";
+	line-height: .5;
+}
+/* Show only active nested lists */
+.elv-toc-list ul.elv-toc-active,
+.elv-toc-list li.elv-toc-active > ul {
+	display: block;
+}

docs/_includes/header.njk

@@ -0,0 +1,4 @@
+<header class="elv-layout elv-layout-full elv-header{% if headerClass %} {{ headerClass }}{% endif %}">
+    {% if page.url != '/' %}<h3><a href="https://torsion.org/borgmatic/">borgmatic</a></h3>{% endif %}
+    <h1 class="elv-hed">{{ title | safe }}</h1>
+</header>

docs/_includes/layouts/base.njk

@@ -0,0 +1,28 @@
+<!doctype html>
+<html lang="en"{% if templateClass %} class="{{ templateClass }}"{% endif %}>
+	<head>
+		<meta charset="utf-8">
+		<meta name="viewport" content="width=device-width, initial-scale=1.0">
+		<title>{{ subtitle + ' - ' if subtitle}}{{ title }}</title>
+{%- set css %}
+{% include 'index.css' %}
+{% include 'components/lists.css' %}
+{% include 'components/external-links.css' %}
+{% include 'components/minilink.css' %}
+{% include 'components/toc.css' %}
+{% include 'components/info-blocks.css' %}
+{% include 'components/suggestion-form.css' %}
+{% include 'prism-theme.css' %}
+{% include 'asciinema.css' %}
+{% endset %}
+		<style>{{ css | safe }}</style>
+{% if feedTitle and feedUrl %}
+		<link rel="alternate" href="{{ feedUrl }}" title="{{ feedTitle }}" type="application/atom+xml">
+{% endif %}
+	</head>
+	<body>
+
+		{{ content | safe }}
+
+	</body>
+</html>

docs/_includes/layouts/main.njk

@@ -0,0 +1,14 @@
+---
+layout: layouts/base.njk
+templateClass: elv-default
+headerClass: elv-header-default
+---
+{% include "header.njk" %}
+
+<main class="elv-layout{% if layoutClass %} {{ layoutClass }}{% endif %}">
+    <article>
+        {{ content | safe }}
+
+        {% include 'components/suggestion-form.html' %}
+    </article>
+</main>

docs/_includes/prism-theme.css

@@ -0,0 +1,172 @@
+/**
+ * prism.js default theme for JavaScript, CSS and HTML
+ * Based on dabblet (http://dabblet.com)
+ * @author Lea Verou
+ */
+code[class*="language-"],
+pre[class*="language-"] {
+  color: #ABB2BF;
+  background: none;
+  font-family: Consolas, Monaco, 'Andale Mono', 'Ubuntu Mono', monospace;
+  text-align: left;
+  white-space: pre;
+  word-spacing: normal;
+  word-break: normal;
+  word-wrap: normal;
+  line-height: 1.5;
+  -moz-tab-size: 4;
+  -o-tab-size: 4;
+  tab-size: 4;
+  -webkit-hyphens: none;
+  -moz-hyphens: none;
+  -ms-hyphens: none;
+  hyphens: none;
+}
+
+pre[class*="language-"]::-moz-selection, pre[class*="language-"] ::-moz-selection,
+code[class*="language-"]::-moz-selection, code[class*="language-"] ::-moz-selection {
+  text-shadow: none;
+  background: #383e49;
+}
+
+pre[class*="language-"]::selection, pre[class*="language-"] ::selection,
+code[class*="language-"]::selection, code[class*="language-"] ::selection {
+  text-shadow: none;
+  background: #9aa2b1;
+}
+
+@media print {
+  code[class*="language-"],
+  pre[class*="language-"] {
+    text-shadow: none;
+  }
+}
+/* Code blocks */
+pre[class*="language-"] {
+  padding: 1em;
+  margin: .5em 0;
+  overflow: auto;
+}
+
+:not(pre) > code[class*="language-"],
+pre[class*="language-"] {
+  background: #282c34;
+}
+
+/* Inline code */
+:not(pre) > code[class*="language-"] {
+  padding: .1em;
+  border-radius: .3em;
+  white-space: normal;
+}
+
+.token.comment,
+.token.prolog,
+.token.doctype,
+.token.cdata {
+  color: #5C6370;
+}
+
+.token.punctuation {
+  color: #abb2bf;
+}
+
+.token.selector,
+.token.tag {
+  color: #e06c75;
+}
+
+.token.property,
+.token.boolean,
+.token.number,
+.token.constant,
+.token.symbol,
+.token.attr-name,
+.token.deleted {
+  color: #d19a66;
+}
+
+.token.string,
+.token.char,
+.token.attr-value,
+.token.builtin,
+.token.inserted {
+  color: #98c379;
+}
+
+.token.operator,
+.token.entity,
+.token.url,
+.language-css .token.string,
+.style .token.string {
+  color: #56b6c2;
+}
+
+.token.atrule,
+.token.keyword {
+  color: #e06c75;
+}
+
+.token.function {
+  color: #61afef;
+}
+
+.token.regex,
+.token.important,
+.token.variable {
+  color: #c678dd;
+}
+
+.token.important,
+.token.bold {
+  font-weight: bold;
+}
+
+.token.italic {
+  font-style: italic;
+}
+
+.token.entity {
+  cursor: help;
+}
+
+pre.line-numbers {
+	position: relative;
+	padding-left: 3.8em;
+	counter-reset: linenumber;
+}
+
+pre.line-numbers > code {
+	position: relative;
+}
+
+.line-numbers .line-numbers-rows {
+	position: absolute;
+	pointer-events: none;
+	top: 0;
+	font-size: 100%;
+	left: -3.8em;
+	width: 3em; /* works for line-numbers below 1000 lines */
+	letter-spacing: -1px;
+	border-right: 0;
+
+	-webkit-user-select: none;
+	-moz-user-select: none;
+	-ms-user-select: none;
+	user-select: none;
+
+}
+
+.line-numbers-rows > span {
+	pointer-events: none;
+	display: block;
+	counter-increment: linenumber;
+}
+
+.line-numbers-rows > span:before {
+	content: counter(linenumber);
+	color: #5C6370;
+	display: block;
+	padding-right: 0.8em;
+	text-align: right;
+}

docs/how-to/add-preparation-and-cleanup-steps-to-backups.md

@@ -0,0 +1,79 @@
+---
+title: How to add preparation and cleanup steps to backups
+---
+## Preparation and cleanup hooks
+
+If you find yourself performing prepraration tasks before your backup runs, or
+cleanup work afterwards, borgmatic hooks may be of interest. Hooks are shell
+commands that borgmatic executes for you at various points, and they're
+configured in the `hooks` section of your configuration file. But if you're
+looking to backup a database, it's probably easier to use the [database backup
+feature](https://torsion.org/borgmatic/docs/how-to/backup-your-databases/)
+instead.
+
+You can specify `before_backup` hooks to perform preparation steps before
+running backups, and specify `after_backup` hooks to perform cleanup steps
+afterwards. Here's an example:
+
+```yaml
+hooks:
+    before_backup:
+        - mount /some/filesystem
+    after_backup:
+        - umount /some/filesystem
+```
+
+The `before_backup` and `after_backup` hooks each run once per configuration
+file. `before_backup` hooks run prior to backups of all repositories in a
+configuration file, right before the `create` action. `after_backup` hooks run
+afterwards, but not if an error occurs in a previous hook or in the backups
+themselves.
+
+You can also use `before_everything` and `after_everything` hooks to perform
+global setup or cleanup:
+
+```yaml
+hooks:
+    before_everything:
+        - set-up-stuff-globally
+    after_everything:
+        - clean-up-stuff-globally
+```
+
+`before_everything` hooks collected from all borgmatic configuration files run
+once before all configuration files (prior to all actions), but only if there
+is a `create` action. An error encountered during a `before_everything` hook
+causes borgmatic to exit without creating backups.
+
+`after_everything` hooks run once after all configuration files and actions,
+but only if there is a `create` action. It runs even if an error occurs during
+a backup or a backup hook, but not if an error occurs during a
+`before_everything` hook.
+
+borgmatic also runs `on_error` hooks if an error occurs, either when creating
+a backup or running a backup hook. See the [monitoring and alerting
+documentation](https://torsion.org/borgmatic/docs/how-to/monitor-your-backups/)
+for more information.
+
+## Hook output
+
+Any output produced by your hooks shows up both at the console and in syslog
+(when run in a non-interactive console). For more information, read about <a
+href="https://torsion.org/borgmatic/docs/how-to/inspect-your-backups/">inspecting
+your backups</a>.
+
+## Security
+
+An important security note about hooks: borgmatic executes all hook commands
+with the user permissions of borgmatic itself. So to prevent potential shell
+injection or privilege escalation, do not forget to set secure permissions
+on borgmatic configuration files (`chmod 0600`) and scripts (`chmod 0700`)
+invoked by hooks.
+
+
+## Related documentation
+
+ * [Set up backups with borgmatic](https://torsion.org/borgmatic/docs/how-to/set-up-backups/)
+ * [Backup your databases](https://torsion.org/borgmatic/docs/how-to/backup-your-databases/)
+ * [Inspect your backups](https://torsion.org/borgmatic/docs/how-to/inspect-your-backups/)
+ * [Monitor your backups](https://torsion.org/borgmatic/docs/how-to/monitor-your-backups/)

docs/how-to/backup-your-databases.md

@@ -0,0 +1,169 @@
+---
+title: How to backup your databases
+---
+## Database dump hooks
+
+If you want to backup a database, it's best practice with most database
+systems to backup an exported database dump, rather than backing up your
+database's internal file storage. That's because the internal storage can
+change while you're reading from it. In contrast, a database dump creates a
+consistent snapshot that is more suited for backups.
+
+Fortunately, borgmatic includes built-in support for creating database dumps
+prior to running backups. For example, here is everything you need to dump and
+backup a couple of local PostgreSQL databases:
+
+```yaml
+hooks:
+    postgresql_databases:
+        - name: users
+        - name: orders
+```
+
+Prior to each backup, borgmatic dumps each configured database to a file
+(located in `~/.borgmatic/`) and includes it in the backup. After the backup
+completes, borgmatic removes the database dump files to recover disk space.
+
+Here's a more involved example that connects to a remote database:
+
+```yaml
+hooks:
+    postgresql_databases:
+        - name: users
+          hostname: database.example.org
+          port: 5433
+          username: dbuser
+          password: trustsome1
+          format: tar
+          options: "--role=someone"
+```
+
+If you want to dump all databases on a host, use `all` for the database name:
+
+```yaml
+hooks:
+    postgresql_databases:
+        - name: all
+```
+
+Note that you may need to use a `username` of the `postgres` superuser for
+this to work.
+
+
+### Configuration backups
+
+An important note about this database configuration: You'll need the
+configuration to be present in order for borgmatic to restore a database. So
+to prepare for this situation, it's a good idea to include borgmatic's own
+configuration files as part of your regular backups. That way, you can always
+bring back any missing configuration files in order to restore a database.
+
+
+## Supported databases
+
+As of now, borgmatic only supports PostgreSQL databases directly. But see
+below about general-purpose preparation and cleanup hooks as a work-around
+with other database systems. Also, please [file a
+ticket](https://torsion.org/borgmatic/#issues) for additional database systems
+that you'd like supported.
+
+
+## Database restoration
+
+To restore a database dump from an archive, use the `borgmatic restore`
+action. But the first step is to figure out which archive to restore from. A
+good way to do that is to use the `list` action:
+
+```bash
+borgmatic list
+```
+
+(No borgmatic `list` action? Try the old-style `--list`, or upgrade
+borgmatic!)
+
+That should yield output looking something like:
+
+```text
+host-2019-01-01T04:05:06.070809      Tue, 2019-01-01 04:05:06 [...]
+host-2019-01-02T04:06:07.080910      Wed, 2019-01-02 04:06:07 [...]
+```
+
+Assuming that you want to restore all database dumps from the archive with the
+most up-to-date files and therefore the latest timestamp, run a command like:
+
+```bash
+borgmatic restore --archive host-2019-01-02T04:06:07.080910
+```
+
+(No borgmatic `restore` action? Upgrade borgmatic!)
+
+The `--archive` value is the name of the archive to restore from. This
+restores all databases dumps that borgmatic originally backed up to that
+archive.
+
+This is a destructive action! `borgmatic restore` replaces live databases by
+restoring dumps from the selected archive. So be very careful when and where
+you run it.
+
+
+### Repository selection
+
+If you have a single repository in your borgmatic configuration file(s), no
+problem: the `restore` action figures out which repository to use.
+
+But if you have multiple repositories configured, then you'll need to specify
+the repository path containing the archive to restore. Here's an example:
+
+```bash
+borgmatic restore --repository repo.borg --archive host-2019-...
+```
+
+### Restore particular databases
+
+If you've backed up multiple databases into an archive, and you'd only like to
+restore one of them, use the `--database` flag to select one or more
+databases. For instance:
+
+```bash
+borgmatic restore --archive host-2019-... --database users
+```
+
+### Limitations
+
+There are a few important limitations with borgmatic's current database
+restoration feature that you should know about:
+
+1. You must restore as the same Unix user that created the archive containing
+the database dump. That's because the user's home directory path is encoded
+into the path of the database dump within the archive.
+2. As mentioned above, borgmatic can only restore a database that's defined in
+borgmatic's own configuration file. So include your configuration file in
+backups to avoid getting caught without a way to restore a database.
+3. borgmatic does not currently support backing up or restoring multiple
+databases that share the exact same name on different hosts.
+
+
+### Manual restoration
+
+If you prefer to restore a database without the help of borgmatic, first
+[extract](https://torsion.org/borgmatic/docs/how-to/extract-a-backup/) an
+archive containing a database dump, and then manually restore the dump file
+found within the extracted `~/.borgmatic/` path (e.g. with `pg_restore`).
+
+
+## Preparation and cleanup hooks
+
+If this database integration is too limited for needs, borgmatic also supports
+general-purpose [preparation and cleanup
+hooks](https://torsion.org/borgmatic/docs/how-to/add-preparation-and-cleanup-steps-to-backups/).
+These hooks allows you to trigger arbitrary commands or scripts before and
+after backups. So if necessary, you can use these hooks to create database
+dumps with any database system.
+
+
+## Related documentation
+
+ * [Set up backups with borgmatic](https://torsion.org/borgmatic/docs/how-to/set-up-backups/)
+ * [Add preparation and cleanup steps to backups](https://torsion.org/borgmatic/docs/how-to/add-preparation-and-cleanup-steps-to-backups/)
+ * [Inspect your backups](https://torsion.org/borgmatic/docs/how-to/inspect-your-backups/)
+ * [Extract a backup](https://torsion.org/borgmatic/docs/how-to/extract-a-backup/)

docs/how-to/deal-with-very-large-backups.md

@@ -0,0 +1,109 @@
+---
+title: How to deal with very large backups
+---
+## Biggish data
+
+Borg itself is great for efficiently de-duplicating data across successive
+backup archives, even when dealing with very large repositories. But you may
+find that while borgmatic's default mode of "prune, create, and check" works
+well on small repositories, it's not so great on larger ones. That's because
+running the default consistency checks takes a long time on large
+repositories.
+
+### A la carte actions
+
+If you find yourself in this situation, you have some options. First, you can
+run borgmatic's pruning, creating, or checking actions separately. For
+instance, the the following optional actions are available:
+
+```bash
+borgmatic prune
+borgmatic create
+borgmatic check
+```
+
+(No borgmatic `prune`, `create`, or `check` actions? Try the old-style
+`--prune`, `--create`, or `--check`. Or upgrade borgmatic!)
+
+You can run with only one of these actions provided, or you can mix and match
+any number of them in a single borgmatic run. This supports approaches like
+making backups with `create` on a frequent schedule, while only running
+expensive consistency checks with `check` on a much less frequent basis from
+a separate cron job.
+
+### Consistency check configuration
+
+Another option is to customize your consistency checks. The default
+consistency checks run both full-repository checks and per-archive checks
+within each repository.
+
+But if you find that archive checks are too slow, for example, you can
+configure borgmatic to run repository checks only. Configure this in the
+`consistency` section of borgmatic configuration:
+
+```yaml
+consistency:
+    checks:
+        - repository
+```
+
+If that's still too slow, you can disable consistency checks entirely,
+either for a single repository or for all repositories.
+
+Disabling all consistency checks looks like this:
+
+```yaml
+consistency:
+    checks:
+        - disabled
+```
+
+Or, if you have multiple repositories in your borgmatic configuration file,
+you can keep running consistency checks, but only against a subset of the
+repositories:
+
+```yaml
+consistency:
+    check_repositories:
+        - path/of/repository_to_check.borg
+```
+
+Finally, you can override your configuration file's consistency checks, and
+run particular checks via the command-line. For instance:
+
+```bash
+borgmatic check --only data --only extract
+```
+
+This is useful for running slow consistency checks on an infrequent basis,
+separate from your regular checks.
+
+
+## Troubleshooting
+
+### Broken pipe with remote repository
+
+When running borgmatic on a large remote repository, you may receive errors
+like the following, particularly while "borg check" is validating backups for
+consistency:
+
+```text
+    Write failed: Broken pipe
+    borg: Error: Connection closed by remote host
+```
+
+This error can be caused by an ssh timeout, which you can rectify by adding
+the following to the `~/.ssh/config` file on the client:
+
+```text
+    Host *
+        ServerAliveInterval 120
+```
+
+This should make the client keep the connection alive while validating
+backups.
+
+
+## Related documentation
+
+ * [Set up backups with borgmatic](https://torsion.org/borgmatic/docs/how-to/set-up-backups/)

docs/how-to/develop-on-borgmatic.md

@@ -0,0 +1,135 @@
+---
+title: How to develop on borgmatic
+---
+## Source code
+
+To get set up to hack on borgmatic, first clone master via HTTPS or SSH:
+
+```bash
+git clone https://projects.torsion.org/witten/borgmatic.git
+```
+
+Or:
+
+```bash
+git clone ssh://git@projects.torsion.org:3022/witten/borgmatic.git
+```
+
+Then, install borgmatic
+"[editable](https://pip.pypa.io/en/stable/reference/pip_install/#editable-installs)"
+so that you can run borgmatic commands while you're hacking on them to
+make sure your changes work.
+
+```bash
+cd borgmatic/
+pip3 install --editable --user .
+```
+
+Note that this will typically install the borgmatic commands into
+`~/.local/bin`, which may or may not be on your PATH. There are other ways to
+install borgmatic editable as well, for instance into the system Python
+install (so without `--user`, as root), or even into a
+[virtualenv](https://virtualenv.pypa.io/en/stable/). How or where you install
+borgmatic is up to you, but generally an editable install makes development
+and testing easier.
+
+
+## Automated tests
+
+Assuming you've cloned the borgmatic source code as described above, and
+you're in the `borgmatic/` working copy, install tox, which is used for
+setting up testing environments:
+
+```bash
+pip3 install --user tox
+```
+
+Finally, to actually run tests, run:
+
+```bash
+cd borgmatic
+tox
+```
+
+### Code formatting
+
+If when running tests, you get an error from the
+[Black](https://black.readthedocs.io/en/stable/) code formatter about files
+that would be reformatted, you can ask Black to format them for you via the
+following:
+
+```bash
+tox -e black
+```
+
+And if you get a complaint from the
+[isort](https://github.com/timothycrosley/isort) Python import orderer, you
+can ask isort to order your imports for you:
+
+```bash
+tox -e isort
+```
+
+### End-to-end tests
+
+borgmatic additionally includes some end-to-end tests that integration test
+with Borg for a few representative scenarios. These tests don't run by default
+because they're relatively slow and depend on Borg. If you would like to run
+them:
+
+```bash
+tox -e end-to-end
+```
+
+## Code style
+
+Start with [PEP 8](https://www.python.org/dev/peps/pep-0008/). But then, apply
+the following deviations from it:
+
+ * For strings, prefer single quotes over double quotes.
+ * Limit all lines to a maximum of 100 characters.
+ * Use trailing commas within multiline values or argument lists.
+ * For multiline constructs, put opening and closing delimeters on lines
+   separate from their contents.
+ * Within multiline constructs, use standard four-space indentation. Don't align
+   indentation with an opening delimeter.
+
+borgmatic code uses the [Black](https://black.readthedocs.io/en/stable/) code
+formatter, the [Flake8](http://flake8.pycqa.org/en/latest/) code checker, and
+the [isort](https://github.com/timothycrosley/isort) import orderer, so
+certain code style requirements will be enforced when running automated tests.
+See the Black, Flake8, and isort documentation for more information.
+
+## Continuous integration
+
+Each pull request triggers a continuous integration build which runs the test
+suite. You can view these builds on
+[build.torsion.org](https://build.torsion.org/witten/borgmatic), and they're
+also linked from the commits list on each pull request.
+
+## Documentation development
+
+Updates to borgmatic's documentation are welcome. It's formatted in Markdown
+and located in the `docs/` directory in borgmatic's source, plus the
+`README.md` file at the root.
+
+To build and view a copy of the documentation with your local changes, run the
+following from the root of borgmatic's source code:
+
+```bash
+sudo scripts/dev-docs
+```
+
+This requires Docker to be installed on your system. You may not need to use
+sudo if your non-root user has permissions to run Docker.
+
+After you run the script, you can point your web browser at
+http://localhost:8080 to view the documentation with your changes.
+
+To close the documentation server, ctrl-C the script. Note that it does not
+currently auto-reload, so you'll need to stop it and re-run it for any
+additional documentation changes to take effect.
+
+## Related documentation
+
+ * [Inspect your backups](https://torsion.org/borgmatic/docs/how-to/inspect-your-backups/)

docs/how-to/extract-a-backup.md

@@ -0,0 +1,95 @@
+---
+title: How to extract a backup
+---
+## Extract
+
+When the worst happens—or you want to test your backups—the first step is
+to figure out which archive to extract. A good way to do that is to use the
+`list` action:
+
+```bash
+borgmatic list
+```
+
+(No borgmatic `list` action? Try the old-style `--list`, or upgrade
+borgmatic!)
+
+That should yield output looking something like:
+
+```text
+host-2019-01-01T04:05:06.070809      Tue, 2019-01-01 04:05:06 [...]
+host-2019-01-02T04:06:07.080910      Wed, 2019-01-02 04:06:07 [...]
+```
+
+Assuming that you want to extract the archive with the most up-to-date files
+and therefore the latest timestamp, run a command like:
+
+```bash
+borgmatic extract --archive host-2019-01-02T04:06:07.080910
+```
+
+(No borgmatic `extract` action? Try the old-style `--extract`, or upgrade
+borgmatic!)
+
+The `--archive` value is the name of the archive to extract. This extracts the
+entire contents of the archive to the current directory, so make sure you're
+in the right place before running the command.
+
+
+## Repository selection
+
+If you have a single repository in your borgmatic configuration file(s), no
+problem: the `extract` action figures out which repository to use.
+
+But if you have multiple repositories configured, then you'll need to specify
+the repository path containing the archive to extract. Here's an example:
+
+```bash
+borgmatic extract --repository repo.borg --archive host-2019-...
+```
+
+## Extract particular files
+
+Sometimes, you want to extract a single deleted file, rather than extracting
+everything from an archive. To do that, tack on one or more `--path` values.
+For instance:
+
+```bash
+borgmatic extract --archive host-2019-... --path path/1 path/2
+```
+
+Note that the specified restore paths should not have a leading slash. Like a
+whole-archive extract, this also extracts into the current directory. So for
+example, if you happen to be in the directory `/var` and you run the `extract`
+command above, borgmatic will extract `/var/path/1` and `/var/path/2`.
+
+## Extract to a particular destination
+
+By default, borgmatic extracts files into the current directory. To instead
+extract files to a particular destination directory, use the `--destination`
+flag:
+
+```bash
+borgmatic extract --archive host-2019-... --destination /tmp
+```
+
+When using the `--destination` flag, be careful not to overwrite your system's
+files with extracted files unless that is your intent.
+
+
+## Database restoration
+
+The `borgmatic extract` command only extracts files. To restore a database,
+please see the [documentation on database backups and
+restores](https://torsion.org/borgmatic/docs/how-to/backup-your-databases/).
+borgmatic does not perform database restoration as part of `borgmatic extract`
+so that you can extract files from your archive without impacting your live
+databases.
+
+
+## Related documentation
+
+ * [Set up backups with borgmatic](https://torsion.org/borgmatic/docs/how-to/set-up-backups/)
+ * [Inspect your backups](https://torsion.org/borgmatic/docs/how-to/inspect-your-backups/)
+ * [Monitor your backups](https://torsion.org/borgmatic/docs/how-to/monitor-your-backups/)
+ * [Backup your databases](https://torsion.org/borgmatic/docs/how-to/backup-your-databases/)

docs/how-to/inspect-your-backups.md

@@ -0,0 +1,92 @@
+---
+title: How to inspect your backups
+---
+## Backup progress
+
+By default, borgmatic runs proceed silently except in the case of errors. But
+if you'd like to to get additional information about the progress of the
+backup as it proceeds, use the verbosity option:
+
+```bash
+borgmatic --verbosity 1
+```
+
+This lists the files that borgmatic is archiving, which are those that are new
+or changed since the last backup.
+
+Or, for even more progress and debug spew:
+
+```bash
+borgmatic --verbosity 2
+```
+
+## Backup summary
+
+If you're less concerned with progress during a backup, and you only want to
+see the summary of archive statistics at the end, you can use the stats
+option when performing a backup:
+
+```bash
+borgmatic --stats
+```
+
+## Existing backups
+
+borgmatic provides convenient actions for Borg's
+[list](https://borgbackup.readthedocs.io/en/stable/usage/list.html) and
+[info](https://borgbackup.readthedocs.io/en/stable/usage/info.html)
+functionality:
+
+
+```bash
+borgmatic list
+borgmatic info
+```
+
+(No borgmatic `list` or `info` actions? Try the old-style `--list` or
+`--info`. Or upgrade borgmatic!)
+
+
+## Logging
+
+By default, borgmatic logs to a local syslog-compatible daemon if one is
+present and borgmatic is running in a non-interactive console. Where those
+logs show up depends on your particular system. If you're using systemd, try
+running `journalctl -xe`. Otherwise, try viewing `/var/log/syslog` or
+similiar.
+
+You can customize the log level used for syslog logging with the
+`--syslog-verbosity` flag, and this is independent from the console logging
+`--verbosity` flag described above. For instance, to get additional
+information about the progress of the backup as it proceeds:
+
+```bash
+borgmatic --syslog-verbosity 1
+```
+
+Or to increase syslog logging to include debug spew:
+
+```bash
+borgmatic --syslog-verbosity 2
+```
+
+### systemd journal
+
+If your local syslog daemon is systemd's journal, be aware that journald by
+default throttles the rate at which a particular program can log. So you may
+need to [change the journald rate
+limit](https://www.freedesktop.org/software/systemd/man/journald.conf.html#RateLimitIntervalSec=)
+in `/etc/systemd/journald.conf` if you're finding that borgmatic journald logs
+are missing.
+
+Note that the [sample borgmatic systemd service
+file](https://torsion.org/borgmatic/docs/how-to/set-up-backups/#systemd)
+already has this rate limit disabled.
+
+
+## Related documentation
+
+ * [Set up backups with borgmatic](https://torsion.org/borgmatic/docs/how-to/set-up-backups/)
+ * [Monitor your backups](https://torsion.org/borgmatic/docs/how-to/monitor-your-backups/)
+ * [Add preparation and cleanup steps to backups](https://torsion.org/borgmatic/docs/how-to/add-preparation-and-cleanup-steps-to-backups/)
+ * [Develop on borgmatic](https://torsion.org/borgmatic/docs/how-to/develop-on-borgmatic/)

docs/how-to/make-per-application-backups.md

@@ -0,0 +1,115 @@
+---
+title: How to make per-application backups
+---
+## Multiple backup configurations
+
+You may find yourself wanting to create different backup policies for
+different applications on your system. For instance, you may want one backup
+configuration for your database data directory, and a different configuration
+for your user home directories.
+
+The way to accomplish that is pretty simple: Create multiple separate
+configuration files and place each one in a `/etc/borgmatic.d/` directory. For
+instance:
+
+```bash
+sudo mkdir /etc/borgmatic.d
+sudo generate-borgmatic-config --destination /etc/borgmatic.d/app1.yaml
+sudo generate-borgmatic-config --destination /etc/borgmatic.d/app2.yaml
+```
+
+When you set up multiple configuration files like this, borgmatic will run
+each one in turn from a single borgmatic invocation. This includes, by
+default, the traditional `/etc/borgmatic/config.yaml` as well.
+
+And if you need even more customizability, you can specify alternate
+configuration paths on the command-line with borgmatic's `--config` option.
+See `borgmatic --help` for more information.
+
+
+## Configuration includes
+
+Once you have multiple different configuration files, you might want to share
+common configuration options across these files with having to copy and paste
+them. To achieve this, you can put fragments of common configuration options
+into a file, and then include or inline that file into one or more borgmatic
+configuration files.
+
+Let's say that you want to include common retention configuration across all
+of your configuration files. You could do that in each configuration file with
+the following:
+
+```yaml
+location:
+   ...
+
+retention:
+    !include /etc/borgmatic/common_retention.yaml
+```
+
+And then the contents of `common_retention.yaml` could be:
+
+```yaml
+keep_hourly: 24
+keep_daily: 7
+```
+
+To prevent borgmatic from trying to load these configuration fragments by
+themselves and complaining that they are not valid configuration files, you
+should put them in a directory other than `/etc/borgmatic.d/`. (A subdirectory
+is fine.)
+
+Note that this form of include must be a YAML value rather than a key. For
+example, this will not work:
+
+```yaml
+location:
+   ...
+
+# Don't do this. It won't work!
+!include /etc/borgmatic/common_retention.yaml
+```
+
+But if you do want to merge in a YAML key and its values, keep reading!
+
+
+## Include merging
+
+If you need to get even fancier and pull in common configuration options while
+potentially overriding individual options, you can perform a YAML merge of
+included configuration using the YAML `<<` key. For instance, here's an
+example of a main configuration file that pulls in two retention options via
+an include, and then overrides one of them locally:
+
+```yaml
+location:
+   ...
+
+retention:
+    keep_daily: 5
+    <<: !include /etc/borgmatic/common_retention.yaml
+```
+
+This is what `common_retention.yaml` might look like:
+
+```yaml
+keep_hourly: 24
+keep_daily: 7
+```
+
+Once this include gets merged in, the resulting configuration would have a
+`keep_hourly` value of `24` and an overridden `keep_daily` value of `5`.
+
+When there is a collision of an option between the local file and the merged
+include, the local file's option takes precedent. And note that this is a
+shallow merge rather than a deep merge, so the merging does not descend into
+nested values.
+
+Note that this `<<` include merging syntax is only for merging in mappings
+(keys/values). If you'd like to include other types like scalars or lists
+directly, please see the section above about standard includes.
+
+
+## Related documentation
+
+ * [Set up backups with borgmatic](https://torsion.org/borgmatic/docs/how-to/set-up-backups/)

docs/how-to/monitor-your-backups.md

@@ -0,0 +1,158 @@
+---
+title: How to monitor your backups
+---
+
+## Monitoring and alerting
+
+Having backups is great, but they won't do you a lot of good unless you have
+confidence that they're running on a regular basis. That's where monitoring
+and alerting comes in.
+
+There are several different ways you can monitor your backups and find out
+whether they're succeeding. Which of these you choose to do is up to you and
+your particular infrastructure:
+
+1. **Job runner alerts**: The easiest place to start is with failure alerts
+from the [scheduled job
+runner](https://torsion.org/borgmatic/docs/how-to/set-up-backups/#autopilot) (cron,
+systemd, etc.) that's running borgmatic. But note that if the job doesn't even
+get scheduled (e.g. due to the job runner not running), you probably won't get
+an alert at all! Still, this is a decent first line of defense, especially
+when combined with some of the other approaches below.
+2. **borgmatic error hooks**: The `on_error` hook allows you to run an arbitrary
+command or script when borgmatic itself encounters an error running your
+backups. So for instance, you can run a script to send yourself a text message
+alert. But note that if borgmatic doesn't actually run, this alert won't fire.
+See [error
+hooks](https://torsion.org/borgmatic/docs/how-to/monitor-your-backups/#error-hooks)
+below for how to configure this.
+4. **borgmatic Healthchecks hook**: This feature integrates with the
+[Healthchecks](https://healthchecks.io/) service, and pings Healthchecks
+whenever borgmatic runs. That way, Healthchecks can alert you when something
+goes wrong or it doesn't hear from borgmatic for a configured interval. See
+[Healthchecks
+hook](https://torsion.org/borgmatic/docs/how-to/monitor-your-backups/#healthchecks-hook)
+below for how to configure this.
+3. **Third-party monitoring software**: You can use traditional monitoring
+software to consume borgmatic JSON output and track when the last
+successful backup occurred. See [scripting
+borgmatic](https://torsion.org/borgmatic/docs/how-to/monitor-your-backups/#scripting-borgmatic)
+below for how to configure this.
+5. **Borg hosting providers**: Most [Borg hosting
+providers](https://torsion.org/borgmatic/#hosting-providers) include
+monitoring and alerting as part of their offering. This gives you a dashboard
+to check on all of your backups, and can alert you if the service doesn't hear
+from borgmatic for a configured interval.
+6. **borgmatic consistency checks**: While not strictly part of monitoring, if you
+really want confidence that your backups are not only running but are
+restorable as well, you can configure particular [consistency
+checks](https://torsion.org/borgmatic/docs/how-to/deal-with-very-large-backups/#consistency-check-configuration)
+or even script full [extract
+tests](https://torsion.org/borgmatic/docs/how-to/extract-a-backup/).
+
+
+## Error hooks
+
+When an error occurs during a backup, borgmatic can run configurable shell
+commands to fire off custom error notifications or take other actions, so you
+can get alerted as soon as something goes wrong. Here's a not-so-useful
+example:
+
+```yaml
+hooks:
+    on_error:
+        - echo "Error while creating a backup or running a backup hook."
+```
+
+The `on_error` hook supports interpolating particular runtime variables into
+the hook command. Here's an example that assumes you provide a separate shell
+script to handle the alerting:
+
+```yaml
+hooks:
+    on_error:
+        - send-text-message.sh "{configuration_filename}" "{repository}"
+```
+
+In this example, when the error occurs, borgmatic interpolates a few runtime
+values into the hook command: the borgmatic configuration filename, and the
+path of the repository. Here's the full set of supported variables you can use
+here:
+
+ * `configuration_filename`: borgmatic configuration filename in which the
+   error occurred
+ * `repository`: path of the repository in which the error occurred (may be
+   blank if the error occurs in a hook)
+ * `error`: the error message itself
+ * `output`: output of the command that failed (may be blank if an error
+   occurred without running a command)
+
+Note that borgmatic does not run `on_error` hooks if an error occurs within a
+`before_everything` or `after_everything` hook. For more about hooks, see the
+[borgmatic hooks
+documentation](https://torsion.org/borgmatic/docs/how-to/add-preparation-and-cleanup-steps-to-backups/),
+especially the security information.
+
+
+## Healthchecks hook
+
+[Healthchecks](https://healthchecks.io/) is a service that provides "instant
+alerts when your cron jobs fail silently", and borgmatic has built-in
+integration with it. Once you create a Healthchecks account and project on
+their site, all you need to do is configure borgmatic with the unique "Ping
+URL" for your project. Here's an example:
+
+
+```yaml
+hooks:
+    healthchecks: https://hc-ping.com/addffa72-da17-40ae-be9c-ff591afb942a
+```
+
+With this hook in place, borgmatic will ping your Healthchecks project when a
+backup begins, ends, or errors. Then you can configure Healthchecks to notify
+you by a [variety of
+mechanisms](https://healthchecks.io/#welcome-integrations) when backups fail
+or it doesn't hear from borgmatic for a certain period of time.
+
+
+## Scripting borgmatic
+
+To consume the output of borgmatic in other software, you can include an
+optional `--json` flag with `create`, `list`, or `info` to get the output
+formatted as JSON.
+
+Note that when you specify the `--json` flag, Borg's other non-JSON output is
+suppressed so as not to interfere with the captured JSON. Also note that JSON
+output only shows up at the console, and not in syslog.
+
+
+### Successful backups
+
+`borgmatic list` includes support for a `--successful` flag that only lists
+successful (non-checkpoint) backups. This flag works via a basic heuristic: It
+assumes that non-checkpoint archive names end with a digit (e.g. from a
+timestamp), while checkpoint archive names do not. This means that if you're
+using custom archive names that do not end in a digit, the `--successful` flag
+will not work as expected.
+
+Combined with a built-in Borg flag like `--last`, you can list the last
+successful backup for use in your monitoring scripts. Here's an example
+combined with `--json`:
+
+```bash
+borgmatic list --successful --last 1 --json
+```
+
+Note that this particular combination will only work if you've got a single
+backup "series" in your repository. If you're instead backing up, say, from
+multiple different hosts into a single repository, then you'll need to get
+fancier with your archive listing. See `borg list --help` for more flags.
+
+
+## Related documentation
+
+ * [Set up backups with borgmatic](https://torsion.org/borgmatic/docs/how-to/set-up-backups/)
+ * [Inspect your backups](https://torsion.org/borgmatic/docs/how-to/inspect-your-backups/)
+ * [Add preparation and cleanup steps to backups](https://torsion.org/borgmatic/docs/how-to/add-preparation-and-cleanup-steps-to-backups/)
+ * [Extract a backup](https://torsion.org/borgmatic/docs/how-to/extract-a-backup/)
+ * [Develop on borgmatic](https://torsion.org/borgmatic/docs/how-to/develop-on-borgmatic/)

docs/how-to/restore-a-backup.md

@@ -0,0 +1,3 @@
+<head>
+    <meta http-equiv='refresh' content='0; URL=https://torsion.org/borgmatic/docs/how-to/extract-a-backup/'>
+</head>

docs/how-to/run-preparation-steps-before-backups.md

@@ -0,0 +1,3 @@
+<head>
+    <meta http-equiv='refresh' content='0; URL=https://torsion.org/borgmatic/docs/how-to/add-preparation-and-cleanup-steps-to-backups/'>
+</head>

docs/how-to/set-up-backups.md

@@ -0,0 +1,252 @@
+---
+title: How to set up backups with borgmatic
+---
+## Installation
+
+To get up and running, first [install
+Borg](https://borgbackup.readthedocs.io/en/stable/installation.html), at
+least version 1.1.
+
+By default, borgmatic looks for its configuration files in `/etc/borgmatic/`
+and `/etc/borgmatic.d/`, where the root user typically has read access.
+
+So, to download and install borgmatic as the root user, run the following
+commands:
+
+```bash
+sudo pip3 install --user --upgrade borgmatic
+```
+
+This is a [recommended user site
+installation](https://packaging.python.org/tutorials/installing-packages/#installing-to-the-user-site).
+You will need to ensure that `/root/.local/bin` is available on your `$PATH` so
+that the borgmatic executable is available.
+
+Note that your pip binary may have a different name than "pip3". Make sure
+you're using Python 3, as borgmatic does not support Python 2.
+
+### Other ways to install
+
+Along with the above process, you have several other options for installing
+borgmatic:
+
+ * [Docker base image](https://hub.docker.com/r/monachus/borgmatic/)
+ * [Docker image with support for scheduled backups](https://hub.docker.com/r/b3vis/borgmatic/)
+ * [Debian](https://tracker.debian.org/pkg/borgmatic)
+ * [Ubuntu](https://launchpad.net/ubuntu/+source/borgmatic)
+ * [Fedora](https://bodhi.fedoraproject.org/updates/?search=borgmatic)
+ * [Arch Linux](https://www.archlinux.org/packages/community/any/borgmatic/)
+ * [OpenBSD](http://ports.su/sysutils/borgmatic)
+ * [openSUSE](https://software.opensuse.org/package/borgmatic)
+ * [stand-alone binary](https://github.com/cmarquardt/borgmatic-binary)
+ * [virtualenv](https://virtualenv.pypa.io/en/stable/)
+
+
+## Hosting providers
+
+Need somewhere to store your encrypted offsite backups? The following hosting
+providers include specific support for Borg/borgmatic. Using these links and
+services helps support borgmatic development and hosting. (These are referral
+links, but without any tracking scripts or cookies.)
+
+<ul>
+ <li class="referral"><a href="https://www.rsync.net/cgi-bin/borg.cgi?campaign=borg&adgroup=borgmatic">rsync.net</a>: Cloud Storage provider with full support for borg and any other SSH/SFTP tool</li>
+ <li class="referral"><a href="https://www.borgbase.com/?utm_source=borgmatic">BorgBase</a>: Borg hosting service with support for monitoring, 2FA, and append-only repos</li>
+</ul>
+
+## Configuration
+
+After you install borgmatic, generate a sample configuration file:
+
+```bash
+sudo generate-borgmatic-config
+```
+
+If that command is not found, then it may be installed in a location that's
+not in your system `PATH`. Try looking in `/usr/local/bin/`.
+
+This generates a sample configuration file at /etc/borgmatic/config.yaml (by
+default). You should edit the file to suit your needs, as the values are
+representative. All options are optional except where indicated, so feel free
+to ignore anything you don't need.
+
+Note that the configuration file is organized into distinct sections, each
+with a section name like `location:` or `storage:`. So take care that if you
+uncomment a particular option, also uncomment its containing section name, or
+else borgmatic won't recognize the option. Also be sure to use spaces rather
+than tabs for indentation; YAML does not allow tabs.
+
+You can also get the same sample configuration file from the [configuration
+reference](https://torsion.org/borgmatic/docs/reference/configuration/), the authoritative set of
+all configuration options. This is handy if borgmatic has added new options
+since you originally created your configuration file.
+
+
+### Encryption
+
+Note that if you plan to run borgmatic on a schedule with cron, and you
+encrypt your Borg repository with a passphrase instead of a key file, you'll
+either need to set the borgmatic `encryption_passphrase` configuration
+variable or set the `BORG_PASSPHRASE` environment variable. See the
+[repository encryption
+section](https://borgbackup.readthedocs.io/en/stable/quickstart.html#repository-encryption)
+of the Borg Quick Start for more info.
+
+Alternatively, you can specify the passphrase programatically by setting
+either the borgmatic `encryption_passcommand` configuration variable or the
+`BORG_PASSCOMMAND` environment variable. See the [Borg Security
+FAQ](http://borgbackup.readthedocs.io/en/stable/faq.html#how-can-i-specify-the-encryption-passphrase-programmatically)
+for more info.
+
+
+### Validation
+
+If you'd like to validate that your borgmatic configuration is valid, the
+following command is available for that:
+
+```bash
+sudo validate-borgmatic-config
+```
+
+This command's exit status (`$?` in Bash) is zero when configuration is valid
+and non-zero otherwise.
+
+Validating configuration can be useful if you generate your configuration
+files via configuration management, or you want to double check that your hand
+edits are valid.
+
+
+## Initialization
+
+Before you can create backups with borgmatic, you first need to initialize a
+Borg repository so you have a destination for your backup archives. (But skip
+this step if you already have a Borg repository.) To create a repository, run
+a command like the following:
+
+```bash
+borgmatic init --encryption repokey
+```
+
+(No borgmatic `init` action? Try the old-style `--init` flag, or upgrade
+borgmatic!)
+
+This uses the borgmatic configuration file you created above to determine
+which local or remote repository to create, and encrypts it with the
+encryption passphrase specified there if one is provided. Read about [Borg
+encryption
+modes](https://borgbackup.readthedocs.io/en/stable/usage/init.html#encryption-modes)
+for the menu of available encryption modes.
+
+Also, optionally check out the [Borg Quick
+Start](https://borgbackup.readthedocs.org/en/stable/quickstart.html) for more
+background about repository initialization.
+
+Note that borgmatic skips repository initialization if the repository already
+exists. This supports use cases like ensuring a repository exists prior to
+performing a backup.
+
+If the repository is on a remote host, make sure that your local user has
+key-based SSH access to the desired user account on the remote host.
+
+
+## Backups
+
+Now that you've configured borgmatic and initialized a repository, it's a
+good idea to test that borgmatic is working. So to run borgmatic and start a
+backup, you can invoke it like this:
+
+```bash
+borgmatic --verbosity 1
+```
+
+By default, this will also prune any old backups as per the configured
+retention policy, and check backups for consistency problems due to things
+like file damage.
+
+The verbosity flag makes borgmatic list the files that it's archiving, which
+are those that are new or changed since the last backup. Eyeball the list and
+see if it matches your expectations based on the configuration.
+
+
+## Autopilot
+
+Running backups manually is good for validating your configuration, but I'm
+guessing that you want to run borgmatic automatically, say once a day. To do
+that, you can configure a separate job runner to invoke it periodically.
+
+### cron
+
+If you're using cron, download the [sample cron
+file](https://projects.torsion.org/witten/borgmatic/src/master/sample/cron/borgmatic).
+Then, from the directory where you downloaded it:
+
+```bash
+sudo mv borgmatic /etc/cron.d/borgmatic
+sudo chmod +x /etc/cron.d/borgmatic
+```
+
+You can modify the cron file if you'd like to run borgmatic more or less frequently.
+
+### systemd
+
+If you're using systemd instead of cron to run jobs, download the [sample
+systemd service
+file](https://projects.torsion.org/witten/borgmatic/raw/branch/master/sample/systemd/borgmatic.service)
+and the [sample systemd timer
+file](https://projects.torsion.org/witten/borgmatic/raw/branch/master/sample/systemd/borgmatic.timer).
+Then, from the directory where you downloaded them:
+
+```bash
+sudo mv borgmatic.service borgmatic.timer /etc/systemd/system/
+sudo systemctl enable borgmatic.timer
+sudo systemctl start borgmatic.timer
+```
+
+Feel free to modify the timer file based on how frequently you'd like
+borgmatic to run.
+
+## Colored output
+
+Borgmatic produces colored terminal output by default. It is disabled when a
+non-interactive terminal is detected (like a cron job). Otherwise, you can
+disable it by passing the `--no-color` flag, setting the environment variable
+`PY_COLORS=False`, or setting the `color` option to `false` in the `output`
+section of configuration.
+
+## Troubleshooting
+
+### "found character that cannot start any token" error
+
+If you run borgmatic and see an error looking something like this, it probably
+means you've used tabs instead of spaces:
+
+```
+test.yaml: Error parsing configuration file
+An error occurred while parsing a configuration file at config.yaml:
+while scanning for the next token
+found character that cannot start any token
+  in "config.yaml", line 230, column 1
+```
+
+YAML does not allow tabs. So to fix this, replace any tabs in your
+configuration file with the requisite number of spaces.
+
+### libyaml compilation errors
+
+borgmatic depends on a Python YAML library (ruamel.yaml) that will optionally
+use a C YAML library (libyaml) if present. But if it's not installed, then
+when installing or upgrading borgmatic, you may see errors about compiling the
+YAML library. If so, not to worry. borgmatic should install and function
+correctly even without the C YAML library. And borgmatic won't be any faster
+with the C library present, so you don't need to go out of your way to install
+it.
+
+
+## Related documentation
+
+ * [Make per-application backups](https://torsion.org/borgmatic/docs/how-to/make-per-application-backups/)
+ * [Deal with very large backups](https://torsion.org/borgmatic/docs/how-to/deal-with-very-large-backups/)
+ * [Inspect your backups](https://torsion.org/borgmatic/docs/how-to/inspect-your-backups/)
+ * [Monitor your backups](https://torsion.org/borgmatic/docs/how-to/monitor-your-backups/)
+ * [borgmatic configuration reference](https://torsion.org/borgmatic/docs/reference/configuration/)
+ * [borgmatic command-line reference](https://torsion.org/borgmatic/docs/reference/command-line/)

docs/how-to/upgrade.md

@@ -0,0 +1,79 @@
+---
+title: How to upgrade borgmatic
+---
+## Upgrading
+
+In general, all you should need to do to upgrade borgmatic is run the
+following:
+
+```bash
+sudo pip3 install --user --upgrade borgmatic
+```
+
+See below about special cases.
+
+
+### Upgrading from borgmatic 1.0.x
+
+borgmatic changed its configuration file format in version 1.1.0 from
+INI-style to YAML. This better supports validation, and has a more natural way
+to express lists of values. To upgrade your existing configuration, first
+upgrade to the new version of borgmatic.
+
+As of version 1.1.0, borgmatic no longer supports Python 2. If you were
+already running borgmatic with Python 3, then you can upgrade borgmatic
+in-place:
+
+```bash
+sudo pip3 install --user --upgrade borgmatic
+```
+
+But if you were running borgmatic with Python 2, uninstall and reinstall instead:
+
+```bash
+sudo pip uninstall borgmatic
+sudo pip3 install --user borgmatic
+```
+
+The pip binary names for different versions of Python can differ, so the above
+commands may need some tweaking to work on your machine.
+
+
+Once borgmatic is upgraded, run:
+
+```bash
+sudo upgrade-borgmatic-config
+```
+
+That will generate a new YAML configuration file at /etc/borgmatic/config.yaml
+(by default) using the values from both your existing configuration and
+excludes files. The new version of borgmatic will consume the YAML
+configuration file instead of the old one.
+
+
+### Upgrading from atticmatic
+
+You can ignore this section if you're not an atticmatic user (the former name
+of borgmatic).
+
+borgmatic only supports Borg now and no longer supports Attic. So if you're
+an Attic user, consider switching to Borg. See the [Borg upgrade
+command](https://borgbackup.readthedocs.io/en/stable/usage.html#borg-upgrade)
+for more information. Then, follow the instructions above about setting up
+your borgmatic configuration files.
+
+If you were already using Borg with atticmatic, then you can upgrade
+from atticmatic to borgmatic by running the following commands:
+
+```bash
+sudo pip3 uninstall atticmatic
+sudo pip3 install --user borgmatic
+```
+
+That's it! borgmatic will continue using your /etc/borgmatic configuration
+files.
+
+
+## Related documentation
+
+ * [Develop on borgmatic](https://torsion.org/borgmatic/docs/how-to/develop-on-borgmatic/)

docs/reference/command-line.md

@@ -0,0 +1,17 @@
+---
+title: borgmatic command-line reference
+---
+## borgmatic options
+
+Here are all of the available borgmatic command-line options. This includes the separate options for
+each action sub-command:
+
+```
+{% include borgmatic/command-line.txt %}
+```
+
+
+## Related documentation
+
+ * [Set up backups with borgmatic](https://torsion.org/borgmatic/docs/how-to/set-up-backups/)
+ * [borgmatic configuration reference](https://torsion.org/borgmatic/docs/reference/configuration/)

docs/reference/configuration.md

@@ -0,0 +1,19 @@
+---
+title: borgmatic configuration reference
+---
+## Configuration file
+
+Here is a full sample borgmatic configuration file including all available options: 
+
+```yaml
+{% include borgmatic/config.yaml %}
+```
+
+Note that you can also [download this configuration
+file](https://torsion.org/borgmatic/docs/reference/config.yaml) for use locally.
+
+
+## Related documentation
+
+ * [Set up backups with borgmatic](https://torsion.org/borgmatic/docs/how-to/set-up-backups/)
+ * [borgmatic command-line reference](https://torsion.org/borgmatic/docs/reference/command-line/)

pyproject.toml

@@ -0,0 +1,3 @@
+[tool.black]
+line-length = 100
+skip-string-normalization = true

sample/atticmatic.cron

@@ -1,3 +0,0 @@
-# You can drop this file into /etc/cron.d/ to run atticmatic nightly.
-
-0 3 * * * root PATH=$PATH:/usr/local/bin /usr/local/bin/atticmatic

sample/config

@@ -1,17 +0,0 @@
-[location]
-# Space-separated list of source directories to backup.
-source_directories: /home /etc
-
-# Path to local or remote Attic repository.
-repository: user@backupserver:sourcehostname.attic
-
-[retention]
-# Retention policy for how many backups to keep in each category.
-# See https://attic-backup.org/usage.html#attic-prune for details.
-#keep_within: 3h
-#keep_hourly: 24
-keep_daily: 7
-keep_weekly: 4
-keep_monthly: 6
-keep_yearly: 1
-#prefix: sourcehostname

sample/cron/borgmatic

@@ -0,0 +1,3 @@
+# You can drop this file into /etc/cron.d/ to run borgmatic nightly.
+
+0 3 * * * root PATH=$PATH:/usr/bin:/usr/local/bin /root/.local/bin/borgmatic --syslog-verbosity 1

sample/excludes

@@ -1,3 +0,0 @@
-*.pyc
-/home/*/.cache
-/etc/ssl

sample/systemd/borgmatic.service

@@ -0,0 +1,22 @@
+[Unit]
+Description=borgmatic backup
+Wants=network-online.target
+After=network-online.target
+ConditionACPower=true
+
+[Service]
+Type=oneshot
+
+# Lower CPU and I/O priority.
+Nice=19
+CPUSchedulingPolicy=batch
+IOSchedulingClass=best-effort
+IOSchedulingPriority=7
+IOWeight=100
+
+Restart=no
+LogRateLimitIntervalSec=0
+
+# Delay start to prevent backups running during boot.
+ExecStartPre=sleep 1m
+ExecStart=systemd-inhibit --who="borgmatic" --why="Prevent interrupting scheduled backup" /root/.local/bin/borgmatic --syslog-verbosity 1

sample/systemd/borgmatic.timer

@@ -0,0 +1,9 @@
+[Unit]
+Description=Run borgmatic backup
+
+[Timer]
+OnCalendar=daily
+Persistent=true
+
+[Install]
+WantedBy=timers.target

scripts/dev-docs

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+set -e
+
+docker build --tag borgmatic-docs --build-arg ENVIRONMENT=dev --file docs/Dockerfile .
+echo
+echo "You can view dev docs at http://localhost:8080"
+echo
+docker run --interactive --tty --publish 8080:80 --rm borgmatic-docs

scripts/find-unsupported-borg-options

@@ -0,0 +1,74 @@
+#!/bin/bash
+
+set -o nounset
+
+# For each Borg sub-command that borgmatic uses, print out the Borg flags that borgmatic does not
+# appear to support yet. This script isn't terribly robust. It's intended as a basic tool to ferret
+# out unsupported Borg options so that they can be considered for addition to borgmatic.
+
+# Generate a sample borgmatic configuration with all options set, and uncomment all options.
+generate-borgmatic-config --destination temp.yaml
+cat temp.yaml | sed -e 's/# \S.*$//' | sed -e 's/#//' > temp.yaml.uncommented
+mv temp.yaml.uncommented temp.yaml
+
+# For each sub-command (prune, create, and check), collect the Borg command-line flags that result
+# from running borgmatic with the generated configuration. Then, collect the full set of available
+# Borg flags as reported by "borg --help" for that sub-command. Finally, compare the two lists of
+# flags to determine which Borg flags borgmatic doesn't yet support.
+for sub_command in prune create check list info; do
+    echo "********** borg $sub_command **********"
+
+    for line in $(borgmatic --config temp.yaml $sub_command -v 2 2>&1 | grep "borg\w* $sub_command") ; do
+        echo "$line" | grep '^-' >> borgmatic_borg_flags
+    done
+    sort borgmatic_borg_flags > borgmatic_borg_flags.sorted
+    mv borgmatic_borg_flags.sorted borgmatic_borg_flags
+
+    for word in $(borg $sub_command --help | grep '^  -') ; do
+        # Exclude a bunch of flags that borgmatic actually supports, but don't get exercised by the
+        # generated sample config, and also flags that don't make sense to support.
+        echo "$word" | grep ^-- | sed -e 's/,$//' \
+            | grep -v '^--archives-only$' \
+            | grep -v '^--critical$' \
+            | grep -v '^--debug$' \
+            | grep -v '^--dry-run$' \
+            | grep -v '^--error$' \
+            | grep -v '^--help$' \
+            | grep -v '^--info$' \
+            | grep -v '^--json$' \
+            | grep -v '^--keep-last$' \
+            | grep -v '^--list$' \
+            | grep -v '^--nobsdflags$' \
+            | grep -v '^--pattern$' \
+            | grep -v '^--progress$' \
+            | grep -v '^--stats$' \
+            | grep -v '^--read-special$' \
+            | grep -v '^--repository-only$' \
+            | grep -v '^--show-rc$' \
+            | grep -v '^--stats$' \
+            | grep -v '^--verbose$' \
+            | grep -v '^--warning$' \
+            | grep -v '^--exclude' \
+            | grep -v '^--exclude-from' \
+            | grep -v '^--first' \
+            | grep -v '^--format' \
+            | grep -v '^--glob-archives' \
+            | grep -v '^--last' \
+            | grep -v '^--list-format' \
+            | grep -v '^--patterns-from' \
+            | grep -v '^--prefix' \
+            | grep -v '^--short' \
+            | grep -v '^--sort-by' \
+            | grep -v '^-h$' \
+            >> all_borg_flags
+    done
+
+    sort all_borg_flags > all_borg_flags.sorted
+    mv all_borg_flags.sorted all_borg_flags
+
+    comm -13 borgmatic_borg_flags all_borg_flags
+
+    rm ./*_borg_flags
+done
+
+rm temp.yaml

scripts/push

@@ -0,0 +1,8 @@
+#!/bin/bash
+
+set -e
+
+branch_name=$(git rev-parse --abbrev-ref HEAD)
+
+git push -u github "$branch_name"
+git push -u origin "$branch_name"

scripts/release

@@ -0,0 +1,39 @@
+#!/bin/bash
+
+set -e
+
+projects_token=${1:-}
+github_token=${2:-}
+
+if [[ -z $github_token ]]; then
+    echo "Usage: $0 [projects-token] [github-token]"
+    exit 1
+fi
+if [[ ! -f NEWS ]]; then
+    echo "Missing NEWS file. Try running from root of repository."
+    exit 1
+fi
+
+version=$(head --lines=1 NEWS)
+git tag $version
+git push origin $version
+git push github $version
+
+# Build borgmatic and publish to pypi.
+rm -fr dist
+python3 setup.py bdist_wheel
+python3 setup.py sdist
+twine upload -r pypi dist/borgmatic-*.tar.gz
+twine upload -r pypi dist/borgmatic-*-py3-none-any.whl
+
+# Set release changelogs on projects.evoworx.org and GitHub.
+release_changelog="$(cat NEWS | sed '/^$/q' | grep -v '^\S')"
+escaped_release_changelog="$(echo "$release_changelog" | sed -z 's/\n/\\n/g' | sed -z 's/\"/\\"/g')"
+curl --silent --request POST \
+    "https://projects.torsion.org/api/v1/repos/witten/borgmatic/releases?access_token=$projects_token" \
+    --header "Accept: application/json" \
+    --header "Content-Type: application/json" \
+    --data "{\"body\": \"$escaped_release_changelog\", \"draft\": false, \"name\": \"borgmatic $version\", \"prerelease\": false, \"tag_name\": \"$version\"}"
+
+github-release create --token="$github_token" --owner=witten --repo=borgmatic --tag="$version" \
+    --name="borgmatic $version" --body="$release_changelog"

scripts/run-tests

@@ -0,0 +1,13 @@
+#!/bin/sh
+
+# This script is intended to be run from the continuous integration build
+# server, and not on a developer machine. For that, see:
+# https://torsion.org/borgmatic/docs/how-to/develop-on-borgmatic/
+
+set -e
+
+python -m pip install --upgrade pip==19.3.1
+pip install tox==3.14.0
+tox
+apk add --no-cache borgbackup
+tox -e end-to-end

setup.cfg

@@ -0,0 +1,20 @@
+[metadata]
+description-file=README.md
+
+[tool:pytest]
+testpaths = tests
+addopts = --cov-report term-missing:skip-covered --cov=borgmatic --ignore=tests/end-to-end
+filterwarnings = 
+    ignore:Coverage disabled.*:pytest.PytestWarning
+
+[flake8]
+ignore = E501,W503
+exclude = *.*/*
+
+[tool:isort]
+force_single_line = False
+include_trailing_comma = True
+known_first_party = borgmatic
+line_length = 100
+multi_line_output = 3
+skip = .tox

setup.py

@@ -1,15 +1,40 @@
-from setuptools import setup, find_packages
+from setuptools import find_packages, setup
+
+VERSION = '1.4.2'
+
 
 setup(
-    name='atticmatic',
-    version='0.0.2',
-    description='A wrapper script for Attic backup software that creates and prunes backups',
+    name='borgmatic',
+    version=VERSION,
+    description='Simple, configuration-driven backup software for servers and workstations',
     author='Dan Helfman',
     author_email='witten@torsion.org',
-    packages=find_packages(),
-    entry_points={'console_scripts': ['atticmatic = atticmatic.command:main']},
-    tests_require=(
-        'flexmock',
-        'nose',
-    )
+    url='https://torsion.org/borgmatic',
+    classifiers=[
+        'Development Status :: 5 - Production/Stable',
+        'Environment :: Console',
+        'Intended Audience :: System Administrators',
+        'License :: OSI Approved :: GNU General Public License v3 (GPLv3)',
+        'Programming Language :: Python',
+        'Topic :: Security :: Cryptography',
+        'Topic :: System :: Archiving :: Backup',
+    ],
+    packages=find_packages(exclude=['tests*']),
+    entry_points={
+        'console_scripts': [
+            'borgmatic = borgmatic.commands.borgmatic:main',
+            'upgrade-borgmatic-config = borgmatic.commands.convert_config:main',
+            'generate-borgmatic-config = borgmatic.commands.generate_config:main',
+            'validate-borgmatic-config = borgmatic.commands.validate_config:main',
+        ]
+    },
+    obsoletes=['atticmatic'],
+    install_requires=(
+        'pykwalify>=1.6.0,<14.06',
+        'requests',
+        'ruamel.yaml>0.15.0,<0.17.0',
+        'setuptools',
+        'colorama>=0.4.1,<0.5',
+    ),
+    include_package_data=True,
 )

static/borgmatic.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" x="0px" y="0px" viewBox="0 0 100 100" enable-background="new 0 0 100 100" xml:space="preserve"><g><circle cx="63.461" cy="59.615" r="5.626"></circle><path d="M81.432,48.015c0.779-10.849-1.758-19.894-7.407-26.293C68.447,15.403,59.915,11.923,50,11.923   c-6.729,0-12.834,1.645-17.81,4.724c-0.405-0.06-0.823-0.073-1.248,0.005C8.128,20.817,0,34.623,0,46.154   c0,6.155,1.856,11.005,5.519,14.417c2.082,1.941,4.461,3.223,6.659,3.921C13.041,74.256,18.345,81,23.077,81h1.438   C30.168,94,44.847,99.614,50,99.614c6.708,0,24.493-7.875,27.38-25.392c4.758-1.888,10.697-7.373,10.697-13.711   C88.077,54.639,85.395,49.855,81.432,48.015z M7.691,46.154c0-3.397,1.238-13.399,14.747-19.083   c-2.043,3.821-3.31,8.234-3.771,13.136c-3.06,2.521-5.577,7.792-6.366,15.873c-0.534-0.316-1.056-0.686-1.538-1.135   C8.725,53.045,7.691,50.088,7.691,46.154z M74.23,67.947c-1.806,0-3.309,1.389-3.451,3.188C69.608,85.928,53.914,92.575,50,92.575   c-3.275,0-14.607-4.474-19.03-14.325c1.001-0.709,2.168-1.25,3.646-1.25c3.809,0,3.847,0,3.847,0c2.126,0,7.692-4.023,7.692-19.494   C46.154,46.241,40.588,42,38.462,42c0,0-0.195,0-3.847,0c-3.65,0-5.566-4-7.692-4h-1.046c0.813-4,2.646-8.756,5.473-11.94   c4.321-4.87,10.771-7.329,18.65-7.329c8.016,0,14.528,2.636,18.835,7.515c4.821,5.462,6.697,13.762,5.424,23.95   c-0.123,0.984,0.183,1.99,0.84,2.734s1.602,1.179,2.595,1.179c1.671,0,3.46,2.562,3.46,6.371   C81.153,64.016,75.754,67.812,74.23,67.947z M30.432,59.615c0-3.377,2.734-6.107,6.106-6.107c3.373,0,6.107,2.73,6.107,6.107   s-2.734,6.107-6.107,6.107C33.166,65.723,30.432,62.992,30.432,59.615z"></path></g></svg>

test_requirements.txt

@@ -0,0 +1,25 @@
+appdirs==1.4.3
+atomicwrites==1.3.0
+attrs==19.1.0
+black==19.3b0; python_version >= '3.6'
+click==7.0
+colorama==0.4.1
+coverage==4.5.4
+docopt==0.6.2
+flake8==3.7.8
+flexmock==0.10.4
+isort==4.3.21
+mccabe==0.6.1
+more-itertools==7.2.0
+pluggy==0.13.0
+py==1.8.0
+pycodestyle==2.5.0
+pyflakes==2.1.1
+pykwalify==1.7.0
+pytest==5.1.2
+pytest-cov==2.7.1
+python-dateutil==2.8.0
+PyYAML==5.1.2
+requests==2.22.0
+ruamel.yaml>0.15.0,<0.17.0
+toml==0.10.0

tests/end-to-end/test_borgmatic.py

@@ -0,0 +1,81 @@
+import json
+import os
+import shutil
+import subprocess
+import sys
+import tempfile
+
+
+def generate_configuration(config_path, repository_path):
+    '''
+    Generate borgmatic configuration into a file at the config path, and update the defaults so as
+    to work for testing (including injecting the given repository path and tacking on an encryption
+    passphrase).
+    '''
+    subprocess.check_call(
+        'generate-borgmatic-config --destination {}'.format(config_path).split(' ')
+    )
+    config = (
+        open(config_path)
+        .read()
+        .replace('user@backupserver:sourcehostname.borg', repository_path)
+        .replace('- /home', '- {}'.format(config_path))
+        .replace('- /etc', '')
+        .replace('- /var/log/syslog*', '')
+        + 'storage:\n    encryption_passphrase: "test"'
+    )
+    config_file = open(config_path, 'w')
+    config_file.write(config)
+    config_file.close()
+
+
+def test_borgmatic_command():
+    # Create a Borg repository.
+    temporary_directory = tempfile.mkdtemp()
+    repository_path = os.path.join(temporary_directory, 'test.borg')
+    extract_path = os.path.join(temporary_directory, 'extract')
+
+    original_working_directory = os.getcwd()
+    os.mkdir(extract_path)
+    os.chdir(extract_path)
+
+    try:
+        config_path = os.path.join(temporary_directory, 'test.yaml')
+        generate_configuration(config_path, repository_path)
+
+        subprocess.check_call(
+            'borgmatic -v 2 --config {} --init --encryption repokey'.format(config_path).split(' ')
+        )
+
+        # Run borgmatic to generate a backup archive, and then list it to make sure it exists.
+        subprocess.check_call('borgmatic --config {}'.format(config_path).split(' '))
+        output = subprocess.check_output(
+            'borgmatic --config {} --list --json'.format(config_path).split(' ')
+        ).decode(sys.stdout.encoding)
+        parsed_output = json.loads(output)
+
+        assert len(parsed_output) == 1
+        assert len(parsed_output[0]['archives']) == 1
+        archive_name = parsed_output[0]['archives'][0]['archive']
+
+        # Extract the created archive into the current (temporary) directory, and confirm that the
+        # extracted file looks right.
+        output = subprocess.check_output(
+            'borgmatic --config {} --extract --archive {}'.format(config_path, archive_name).split(
+                ' '
+            )
+        ).decode(sys.stdout.encoding)
+        extracted_config_path = os.path.join(extract_path, config_path)
+        assert open(extracted_config_path).read() == open(config_path).read()
+
+        # Exercise the info flag.
+        output = subprocess.check_output(
+            'borgmatic --config {} --info --json'.format(config_path).split(' ')
+        ).decode(sys.stdout.encoding)
+        parsed_output = json.loads(output)
+
+        assert len(parsed_output) == 1
+        assert 'repository' in parsed_output[0]
+    finally:
+        os.chdir(original_working_directory)
+        shutil.rmtree(temporary_directory)

tests/end-to-end/test_validate_config.py

@@ -0,0 +1,36 @@
+import os
+import subprocess
+import tempfile
+
+
+def test_validate_config_command_with_valid_configuration_succeeds():
+    with tempfile.TemporaryDirectory() as temporary_directory:
+        config_path = os.path.join(temporary_directory, 'test.yaml')
+
+        subprocess.check_call(
+            'generate-borgmatic-config --destination {}'.format(config_path).split(' ')
+        )
+        exit_code = subprocess.call(
+            'validate-borgmatic-config --config {}'.format(config_path).split(' ')
+        )
+
+        assert exit_code == 0
+
+
+def test_validate_config_command_with_invalid_configuration_fails():
+    with tempfile.TemporaryDirectory() as temporary_directory:
+        config_path = os.path.join(temporary_directory, 'test.yaml')
+
+        subprocess.check_call(
+            'generate-borgmatic-config --destination {}'.format(config_path).split(' ')
+        )
+        config = open(config_path).read().replace('keep_daily: 7', 'keep_daily: "7"')
+        config_file = open(config_path, 'w')
+        config_file.write(config)
+        config_file.close()
+
+        exit_code = subprocess.call(
+            'validate-borgmatic-config --config {}'.format(config_path).split(' ')
+        )
+
+        assert exit_code == 1