mech: common convenience library, currently only XML debug fns

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

src/mech/Makefile.am

@@ -3,6 +3,7 @@ include $(top_srcdir)/common.am
 SUBDIRS         = src yang
 DISTCLEANFILES  = *~ *.d
 ACLOCAL_AMFLAGS = -I m4
+noinst_HEADERS += include/common.h
 
 sysconf_DATA = clixon.xml
 EXTRA_DIST = NOTICE

src/mech/common.am

@@ -1,5 +1,5 @@
 CFLAGS   = -Wall -Wextra -Werror -Wno-unused-parameter
-CPPFLAGS = -I $(top_srcdir)/include/
+CPPFLAGS = -I$(top_srcdir)/include/
 
 clixonlibdir  = $(libdir)/clixon
 backenddir    = $(clixonlibdir)/backend
@@ -9,6 +9,7 @@ yangdir       = $(datarootdir)/clixon
 
 backend_LTLIBRARIES =
 cli_LTLIBRARIES =
+noinst_HEADERS =
 clispec_DATA =
 yang_DATA =
 
@@ -16,6 +17,6 @@ cli_libadd = -lclixon -lclixon_cli
 cli_ldflags = -module -avoid-version -shared
 
 backend_cflags = $(CFLAGS) $(augeas_CFLAGS)
-backend_libadd = $(augeas_LIBS) -lclixon -lclixon_backend
+backend_libadd = $(augeas_LIBS) -lclixon -lclixon_backend ../common/common.la
 backend_ldflags = -module -avoid-version -shared
 

src/mech/configure.ac

@@ -10,6 +10,7 @@ AC_CONFIG_FILES([
 	clixon.xml
 	Makefile
 	src/Makefile
+	src/common/Makefile
 	src/core/Makefile
 	src/ietf-system/Makefile
 	yang/Makefile

src/mech/include/common.h

@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+
+#ifndef MECH_COMMON_H_
+#define MECH_COMMON_H_
+
+#include <stdbool.h>
+#include <cligen/cligen.h>
+#include <clixon/clixon.h>
+#include <clixon/clixon_backend.h>
+
+/* debug.c */
+void show_xml_node     (char *tag, cxobj *node);
+void show_xml_node_vec (char *tag, cxobj **node_vec, size_t len);
+
+void show_transaction  (char *tag, transaction_data td, bool show_data);
+
+#endif /* MECH_COMMON_H_ */

src/mech/src/Makefile.am

@@ -1,6 +1,6 @@
 include $(top_srcdir)/common.am
 
-SUBDIRS = core ietf-system
+SUBDIRS = common core ietf-system
 
 install-exec-hook:
 	find $(DESTDIR)$(clixonlibdir) -name '*.la' -delete

src/mech/src/common/Makefile.am

@@ -0,0 +1,6 @@
+include $(top_srcdir)/common.am
+
+noinst_LTLIBRARIES = common.la
+common_la_LDFLAGS  = $(cli_ldflags)
+common_la_LIBADD   = $(cli_libadd)
+common_la_SOURCES  = common-debug.c

src/mech/src/common/common-debug.c

@@ -0,0 +1,61 @@
+/* SPDX-License-Identifier: Apache-2.0 */
+
+#include <syslog.h>
+#include "common.h"
+
+#define MAX_INDENT 128
+
+
+static char* indent_str(size_t indent)
+{
+	static char str[MAX_INDENT + 1];
+
+	for (size_t i = 0; i < indent; i++)
+		str[i] = ' ';
+	str[indent] = '\0';
+
+	return str;
+}
+
+static void show_indented_xml_node(char *tag, cxobj *node, size_t indent)
+{
+	cxobj *child = NULL;
+
+	if (!xml_body_get(node))
+		clicon_log(LOG_DEBUG, "%s: %s%s", tag, indent_str(indent), xml_name(node));
+	else
+		clicon_log(LOG_DEBUG, "%s: %s%s = %s", tag, indent_str(indent), xml_name(node), xml_body(node));
+
+	while ((child = xml_child_each(node, child, CX_ELMNT)))
+		show_indented_xml_node(tag, child, indent + 2);
+}
+
+void show_xml_node(char *tag, cxobj *node)
+{
+	show_indented_xml_node(tag, node, 4);
+}
+
+void show_xml_node_vec(char *tag, cxobj **node_vec, size_t len)
+{
+	for (size_t i = 0; i < len; i++)
+		show_indented_xml_node(tag, node_vec[i], 4);
+}
+
+void show_transaction(char *tag, transaction_data td, bool show_data)
+{
+	clicon_log(LOG_DEBUG, "%s:   transaction ID = %lu", tag, transaction_id(td));
+	if (show_data) {
+		clicon_log(LOG_DEBUG, "%s:   transaction source:", tag);
+		show_xml_node(tag, transaction_src(td));
+		clicon_log(LOG_DEBUG, "%s:   transaction target:", tag);
+		show_xml_node(tag, transaction_target(td));
+		clicon_log(LOG_DEBUG, "%s:   transaction deleted:", tag);
+		show_xml_node_vec(tag, transaction_dvec(td), transaction_dlen(td));
+		clicon_log(LOG_DEBUG, "%s:   transaction added:", tag);
+		show_xml_node_vec(tag, transaction_avec(td), transaction_alen(td));
+		clicon_log(LOG_DEBUG, "%s:   transaction changed source:", tag);
+		show_xml_node_vec(tag, transaction_scvec(td), transaction_clen(td));
+		clicon_log(LOG_DEBUG, "%s:   transaction changed target:", tag);
+		show_xml_node_vec(tag, transaction_tcvec(td), transaction_clen(td));
+	}
+}