74 lines
2.0 KiB
Bash
74 lines
2.0 KiB
Bash
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#!/bin/sh
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USAGE="(edit | show) [commit]"
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. git-sh-setup
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test -n "$3" && usage
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test -z "$1" && usage
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ACTION="$1"; shift
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test -z "$GIT_NOTES_REF" && GIT_NOTES_REF="$(git config core.notesref)"
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test -z "$GIT_NOTES_REF" && GIT_NOTES_REF="refs/notes/commits"
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COMMIT=$(git rev-parse --verify --default HEAD "$@") ||
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die "Invalid commit: $@"
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case "$ACTION" in
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edit)
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if [ "${GIT_NOTES_REF#refs/notes/}" = "$GIT_NOTES_REF" ]; then
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die "Refusing to edit notes in $GIT_NOTES_REF (outside of refs/notes/)"
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fi
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MSG_FILE="$GIT_DIR/new-notes-$COMMIT"
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GIT_INDEX_FILE="$MSG_FILE.idx"
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export GIT_INDEX_FILE
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trap '
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test -f "$MSG_FILE" && rm "$MSG_FILE"
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test -f "$GIT_INDEX_FILE" && rm "$GIT_INDEX_FILE"
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' 0
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GIT_NOTES_REF= git log -1 $COMMIT | sed "s/^/#/" > "$MSG_FILE"
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CURRENT_HEAD=$(git show-ref "$GIT_NOTES_REF" | cut -f 1 -d ' ')
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if [ -z "$CURRENT_HEAD" ]; then
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PARENT=
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else
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PARENT="-p $CURRENT_HEAD"
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git read-tree "$GIT_NOTES_REF" || die "Could not read index"
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git cat-file blob :$COMMIT >> "$MSG_FILE" 2> /dev/null
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fi
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core_editor="$(git config core.editor)"
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${GIT_EDITOR:-${core_editor:-${VISUAL:-${EDITOR:-vi}}}} "$MSG_FILE"
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grep -v ^# < "$MSG_FILE" | git stripspace > "$MSG_FILE".processed
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mv "$MSG_FILE".processed "$MSG_FILE"
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if [ -s "$MSG_FILE" ]; then
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BLOB=$(git hash-object -w "$MSG_FILE") ||
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die "Could not write into object database"
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git update-index --add --cacheinfo 0644 $BLOB $COMMIT ||
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die "Could not write index"
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else
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test -z "$CURRENT_HEAD" &&
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die "Will not initialise with empty tree"
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git update-index --force-remove $COMMIT ||
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die "Could not update index"
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fi
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TREE=$(git write-tree) || die "Could not write tree"
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NEW_HEAD=$(echo Annotate $COMMIT | git commit-tree $TREE $PARENT) ||
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die "Could not annotate"
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git update-ref -m "Annotate $COMMIT" \
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"$GIT_NOTES_REF" $NEW_HEAD $CURRENT_HEAD
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;;
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show)
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git rev-parse -q --verify "$GIT_NOTES_REF":$COMMIT > /dev/null ||
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die "No note for commit $COMMIT."
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git show "$GIT_NOTES_REF":$COMMIT
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;;
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*)
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usage
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esac
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