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87 lines
1.9 KiB
Bash
Executable File
87 lines
1.9 KiB
Bash
Executable File
#!/bin/sh
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# Create new defconfigs by only applying the changes from a standard defconfig
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set -e
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SCRIPT_DIR="$(readlink -f $(dirname -- "$0"))"
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MERGE_CONFIG="${SCRIPT_DIR}/../buildroot/support/kconfig/merge_config.sh"
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usage() {
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cat <<EOF
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Usage: $(basename "$0") -b BASE_CONFIG -c CHANGES... -o OUTPUT_FILE
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Create a new defconfig by applying changes to a base configuration.
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Required Options:
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-b, --base BASE Path to base defconfig file
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-c, --changes CHANGES Path to config changes to apply (can be specified multiple times)
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-o, --output OUTPUT Path to output defconfig file
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Example:
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$(basename "$0") \\
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-b configs/aarch64_defconfig \\
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-c changes/no-containers.conf \\
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-c changes/extra-features.conf \\
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-o configs/aarch64_custom_defconfig
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EOF
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exit 1
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}
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check_file() {
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file="$1"
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type="$2"
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if [ ! -f "$file" ]; then
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echo "Error: $type file does not exist: $file" >&2
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exit 1
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elif [ ! -r "$file" ]; then
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echo "Error: $type file is not readable: $file" >&2
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exit 1
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fi
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}
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base=""
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output=""
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changes=""
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while [ $# -gt 0 ]; do
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case $1 in
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-b|--base)
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base="$2"
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shift 2
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;;
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-c|--changes)
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changes="$changes $2"
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shift 2
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;;
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-o|--output)
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output="$2"
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shift 2
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;;
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*)
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usage
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exit 1
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;;
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esac
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done
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if [ -z "$base" ] || [ -z "$changes" ] || [ -z "$output" ]; then
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usage
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exit 1
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fi
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if [ ! -x "$MERGE_CONFIG" ]; then
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echo "Error: merge_config.sh not found or not executable at: $MERGE_CONFIG"
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exit 1
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fi
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check_file "$base" "Base config"
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for change in $changes; do
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check_file "$change" "Changes config"
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done
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TMPDIR=`mktemp -d`
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$MERGE_CONFIG -O "$TMPDIR" "$base" "$changes"
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O="$TMPDIR" make savedefconfig
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mv "$TMPDIR"/defconfig "$output"
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rm -r "$TMPDIR"
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