50 lines
1.1 KiB
Text
50 lines
1.1 KiB
Text
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#!/bin/sh
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#
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# This hook adds prefix "<repo>/<pkgname>: " to the commit message when
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# committing changes of a single package.
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#
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MSG_FILE="$1"
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SOURCE="$2"
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longest_common_prefix() {
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awk -F/ '
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(NR == 1) { split($0, prefix); prefix_len = NF }
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(NR > 1) {
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for (i = 1; i <= prefix_len; i++) {
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if (prefix[i] != $i) {
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prefix_len = i - 1; break
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}
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}
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}
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(prefix_len == 0) { exit }
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END {
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res = prefix[1]
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for (i = 2; i <= prefix_len; i++) {
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res = res FS prefix[i]
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}
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print(res)
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}'
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}
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prepend_msg() {
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local prefix="$1"
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printf '%s\n%s\n' "$prefix" "$(cat "$MSG_FILE")" > "$MSG_FILE"
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}
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# Do nothing if message has been given using -m, template, merge etc.
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[ -z "$SOURCE" ] || exit 0
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lcp=$(git diff-index --name-only --cached HEAD | longest_common_prefix)
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case "$lcp" in
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device/*/*) prepend_msg "$(echo "$lcp" | cut -d/ -f3): ";;
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# Multiple packages touched for same device category
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# More logic could be added to detect if they all belong to same device
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device/*) ;;
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[^.]*/*) prepend_msg "$(echo "$lcp" | cut -d/ -f1-2): ";;
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esac
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exit 0
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