backup-gitlab

#!/bin/sh

SCRIPTPATH="$(readlink -f 2>/dev/null "$0" || perl -MCwd -e 'print Cwd::abs_path shift' "$0")"
SCRIPTDIR="$(dirname "${SCRIPTPATH}")"

GITLAB_HOST="$1"
GITLAB_TOKEN="$2"
PREFIX="$3"
EXCLUDE_REPOS="$4"
GITLAB_HTTP_PROTO="https"
FETCH_PROTO="ssh"
GITLAB_USER="git"
CURL_OPTS=""
if test "x${GITLAB_HOST}" = "x" || test "x{GITLAB_TOKEN}" = "x"
then
	echo "Usage: $0 GITLAB_HOST GITLAB_TOKEN LOCAL_PATH_PREFIX [EXCLUDE_REPOS] [GITLAB_HTTP_PROTO] [FETCH_PROTO] [FETCH_USER] [CURL_OPTS]"
	exit 2
fi
if test "x$5" != "x"
then
	GITLAB_HTTP_PROTO="$5"
fi
if test "x$6" != "x"
then
	FETCH_PROTO="$6"
fi
if test "x$7" != "x"
then
	GITLAB_USER="$7"
fi
if test "x$8" != "x"
then
	CURL_OPTS="$8"
fi

GITLAB_HTTP="${GITLAB_HTTP_PROTO}://${GITLAB_HOST}/"
GITLAB_URL="${GITLAB_USER}@${GITLAB_HOST}:"
if test "x${FETCH_PROTO}" = "xhttp" || test "x${FETCH_PROTO}" = "xhttps"
then
	GITLAB_URL="${FETCH_PROTO}://${GITLAB_USER}:${GITLAB_TOKEN}@${GITLAB_HOST}/"
fi

getRepos() {

	REPOS="$(curl ${CURL_OPTS} -s -f -H "Private-token: $GITLAB_TOKEN" "${GITLAB_HTTP}api/v4/projects?per_page=100&simple=1&membership=1&archived=0" | tr -d '\r\n' | jq '.[].path_with_namespace')"
	echo "$REPOS"
	i=1
	#echo "LENGTH: $(echo "${REPOS}" | jq -s length)" >&2
	while test "$(echo "${REPOS}" | jq -s length)" = "100"
	do
		i=$((i + 1))
		REPOS="$(curl ${CURL_OPTS} -s -f -H "Private-token: $GITLAB_TOKEN" "${GITLAB_HTTP}api/v4/projects?per_page=100&simple=1&membership=1&archived=0&page=${i}" | tr -d '\r\n' | jq '.[].path_with_namespace')"
		echo "$REPOS"
		#echo "LENGTH: $(echo "${REPOS}" | jq -s length)" >&2
	done
}


REPOS="$( getRepos )"

echo "Repositories: $(echo "${REPOS}" | jq -s length)"

echo "${REPOS}" | jq -s . >"${PREFIX}/repos.json"

for rr in ${REPOS}
do
	r="$(echo "${rr}" | jq -r .)"
	ignore=0
	if test "x${EXCLUDE_REPOS}" != "x"; then
		echo "${r}" | grep -E "${EXCLUDE_REPOS}" >/dev/null
		if test "x$?" = "x0"; then
			echo "# ignore repo: ${r}"
			ignore=1
		fi
	fi

	if test "x${ignore}" != "x1"; then
		"${SCRIPTDIR}/backup-git-repo" "${GITLAB_URL}${r}.git" "${PREFIX}${r}"
	fi
done

#get deleted repos:
echo
echo "Deleted repositories:"
for r in $(cd "${PREFIX}"; ls -d */*)
do
	if ! echo "${REPOS}" | jq -s -e --arg r "${r}" 'index($r)' >/dev/null
	then
		echo ${r}
	fi
done