#!/bin/sh
#
# Called by "git commit" with one argument, the name of the file
# that has the commit message.  The hook should exit with non-zero
# status after issuing an appropriate message if it wants to stop the
# commit.  The hook is allowed to edit the commit message file.

# Process all Fixes tags, check commit IDs and set appropriate commit titles.

for COMMIT in $(sed -n -e 's/^Fixes: \([0-9a-z]*\).*/\1/p' "$1"); do
	GOOD=$(git show -s --abbrev-commit --abbrev=12 --pretty=format:"%h (\"%s\")%n" $COMMIT -- 2>/dev/null)
	if [ -z "$GOOD" ]; then
		echo "Unknown commit: $COMMIT"
		exit 1
	fi
	echo "Setting fixes tag: $GOOD"
	sed -i -e "s/^Fixes: $COMMIT.*/Fixes: $GOOD/" "$1"
done

exit 0