git-commit-script

#!/bin/sh
: ${GIT_DIR=.git}
if [ ! -d $GIT_DIR ]; then
	echo Not a git directory 1>&2
	exit 1
fi
git-update-cache -q --refresh -- "$@" || exit 1
PARENTS="-p HEAD"
if [ ! -r $GIT_DIR/HEAD ]; then
	if [ -z "$(git-ls-files)" ]; then
		echo Nothing to commit 1>&2
		exit 1
	fi
	(
		echo "#"
		echo "# Initial commit"
		echo "#"
		git-ls-files | sed 's/^/# New file: /'
		echo "#"
	) > .editmsg
	PARENTS=""
else
	if [ -f $GIT_DIR/MERGE_HEAD ]; then
		echo "#"
		echo "# It looks like your may be committing a MERGE."
		echo "# If this is not correct, please remove the file"
		echo "#	$GIT_DIR/MERGE_HEAD"
		echo "# and try again"
		echo "#"
		PARENTS="-p HEAD -p MERGE_HEAD"
	fi > .editmsg
	git-status-script >> .editmsg
fi
if [ "$?" != "0" ]
then
	cat .editmsg
	rm .editmsg
	exit 1
fi
${VISUAL:-${EDITOR:-vi}} .editmsg
grep -v '^#' < .editmsg | git-stripspace > .cmitmsg
[ -s .cmitmsg ] && 
	tree=$(git-write-tree) &&
	commit=$(cat .cmitmsg | git-commit-tree $tree $PARENTS) &&
	echo $commit > $GIT_DIR/HEAD &&
	rm -f -- $GIT_DIR/MERGE_HEAD
ret="$?"
rm -f .cmitmsg .editmsg
exit "$ret"