#!/bin/sh
#
. git-sh-setup-script || die "Not a git archive"

usage () {
    echo >&2 "usage: $0 [--heads] [--tags] [--overwrite | --store] repo"
    exit 1;
}

while case "$#" in 0) break;; esac
do
  case "$1" in
  -h|--h|--he|--hea|--head|--heads)
  heads=heads; shift ;;
  -o|--o|--ov|--ove|--over|--overw|--overwr|--overwri|--overwrit|--overwrite)
  overwrite=overwrite; shift ;;
  -s|--s|--st|--sto|--stor|--store)
  store=store; shift ;;
  -t|--t|--ta|--tag|--tags)
  tags=tags; shift ;;
  --)
  shift; break ;;
  -*)
  usage ;;
  *)
  break ;;
  esac
done

case "$#" in 1) ;; *) usage ;; esac
case ",$store,$overwrite," in *,,*) ;; *) usage ;; esac

case ",$heads,$tags," in
,,,) heads=heads tags=tags other=other ;;
esac

. git-parse-remote "$@"
peek_repo="$_remote_repo"

tmp=.ls-remote-$$
trap "rm -fr $tmp-*" 0 1 2 3 15
tmpdir=$tmp-d

case "$peek_repo" in
http://* | https://* )
        if [ -n "$GIT_SSL_NO_VERIFY" ]; then
            curl_extra_args="-k"
        fi
	curl -ns $curl_extra_args "$peek_repo/info/refs" || exit 1
	;;

rsync://* )
	mkdir $tmpdir
	rsync -rq "$peek_repo/refs" $tmpdir || exit 1
	(cd $tmpdir && find refs -type f) |
	while read path
	do
		cat "$tmpdir/$path" | tr -d '\012'
		echo "	$path"
	done &&
	rm -fr $tmpdir
	;;

* )
	git-peek-remote "$peek_repo"
	;;
esac |

while read sha1 path
do
	case "$path" in
	refs/heads/*)
		group=heads ;;
	refs/tags/*)
		group=tags ;;
	*)
		group=other ;;
	esac
	case ",$heads,$tags,$other," in
	*,$group,*)
		;;
	*)
		continue;;
	esac

	echo "$sha1	$path"

	case "$path,$store,$overwrite," in
	*,,, | HEAD,*) continue ;;
	esac

	if test -f "$GIT_DIR/$path" && test "$overwrite" == ""
	then
		continue
	fi

	# Be careful.  We may not have that object yet!
	if git-cat-file -t "$sha1" >/dev/null 2>&1
	then
		echo "$sha1" >"$GIT_DIR/$path"
	else
		echo >&2 "* You have not fetched updated $path ($sha1)."
	fi
done