git/git-fetch-script

#!/bin/sh
#
. git-sh-setup-script || die "Not a git archive"
. git-parse-remote "$@"
merge_repo="$_remote_repo"
merge_head="$_remote_head"
merge_store="$_remote_store"

TMP_HEAD="$GIT_DIR/TMP_HEAD"

case "$merge_repo" in
http://*)
	head=$(wget -q -O - "$merge_repo/$merge_head") || exit 1
	echo Fetching "$merge_head" using http
	git-http-pull -v -a "$merge_head" "$merge_repo/"
	;;
rsync://*)
	rsync -L "$merge_repo/$merge_head" "$TMP_HEAD" || exit 1
	head=$(git-rev-parse TMP_HEAD)
	rm -f "$TMP_HEAD"
	rsync -avz --ignore-existing "$merge_repo/objects/" "$GIT_OBJECT_DIRECTORY/"
	;;
*)
	head=$(git-fetch-pack "$merge_repo" "$merge_head")
	;;
esac || exit 1

git-rev-parse --verify "$head" > /dev/null || exit 1

case "$merge_store" in
'')
	;;
*)
	echo "$head" > "$GIT_DIR/$merge_store"
esac &&

# FETCH_HEAD is fed to git-resolve-script which will eventually be
# passed to git-commit-tree as one of the parents.  Make sure we do
# not give a tag object ID.

git-rev-parse "$head^0" >"$GIT_DIR/FETCH_HEAD"