gitlab: implemented module for required API calls

We need to use API calls as we can't create repositories in protected
namespaces by simply pushing a none existing repository. For privacy
reasons this is limited to private personal repositories in GitLab.

src/lib/api/gitlab.sh

@@ -0,0 +1,108 @@
+#!/hint/bash
+#
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+[[ -z ${DEVTOOLS_INCLUDE_API_GITLAB_SH:-} ]] || return 0
+DEVTOOLS_INCLUDE_API_GITLAB_SH=1
+
+_DEVTOOLS_LIBRARY_DIR=${_DEVTOOLS_LIBRARY_DIR:-@pkgdatadir@}
+# shellcheck source=src/lib/common.sh
+source "${_DEVTOOLS_LIBRARY_DIR}"/lib/common.sh
+# shellcheck source=src/lib/config.sh
+source "${_DEVTOOLS_LIBRARY_DIR}"/lib/config.sh
+
+set -e
+
+
+gitlab_api_call() {
+	local outfile=$1
+	local request=$2
+	local endpoint=$3
+	local data=${4:-}
+	local error
+
+	# empty token
+	if [[ -z "${GITLAB_TOKEN}" ]]; then
+		msg_error "  api call failed: No token provided"
+		return 1
+	fi
+
+	if ! curl --request "${request}" \
+			--url "https://${GITLAB_HOST}/api/v4/${endpoint}" \
+			--header "PRIVATE-TOKEN: ${GITLAB_TOKEN}" \
+			--header "Content-Type: application/json" \
+			--data "${data}" \
+			--output "${outfile}" \
+			--silent; then
+		msg_error "  api call failed: $(cat "${outfile}")"
+		return 1
+	fi
+
+	# check for general purpose api error
+	if error=$(jq --raw-output --exit-status '.error' < "${outfile}"); then
+		msg_error "  api call failed: ${error}"
+		return 1
+	fi
+
+	# check for api specific error messages
+	if ! jq --raw-output --exit-status '.id' < "${outfile}" >/dev/null; then
+		if jq --raw-output --exit-status '.message | keys[]' < "${outfile}" &>/dev/null; then
+			while read -r error; do
+				msg_error "  api call failed: ${error}"
+			done < <(jq --raw-output --exit-status '.message|to_entries|map("\(.key) \(.value[])")[]' < "${outfile}")
+		elif error=$(jq --raw-output --exit-status '.message' < "${outfile}"); then
+			msg_error "  api call failed: ${error}"
+		fi
+		return 1
+	fi
+
+	return 0
+}
+
+gitlab_api_get_user() {
+	local outfile username
+
+	[[ -z ${WORKDIR:-} ]] && setup_workdir
+	outfile=$(mktemp --tmpdir="${WORKDIR}" pkgctl-gitlab-api.XXXXXXXXXX)
+
+	# query user details
+	if ! gitlab_api_call "${outfile}" GET "user/"; then
+		msg_warn "  Invalid token provided?"
+		exit 1
+	fi
+
+	# extract username from details
+	if ! username=$(jq --raw-output --exit-status '.username' < "${outfile}"); then
+		msg_error "  failed to query username: $(cat "${outfile}")"
+		return 1
+	fi
+
+	printf "%s" "${username}"
+	return 0
+}
+
+gitlab_api_create_project() {
+	local pkgbase=$1
+	local outfile data path
+
+	[[ -z ${WORKDIR:-} ]] && setup_workdir
+	outfile=$(mktemp --tmpdir="${WORKDIR}" pkgctl-gitlab-api.XXXXXXXXXX)
+
+	# create GitLab project
+	data='{
+		"name": "'"${pkgbase}"'",
+		"namespace_id": "'"${GIT_PACKAGING_NAMESPACE_ID}"'",
+		"request_access_enabled": "false"
+	}'
+	if ! gitlab_api_call "${outfile}" POST "projects/" "${data}"; then
+		return 1
+	fi
+
+	if ! path=$(jq --raw-output --exit-status '.path' < "${outfile}"); then
+		msg_error "  failed to query path: $(cat "${outfile}")"
+		return 1
+	fi
+
+	printf "%s" "${path}"
+	return 0
+}

src/lib/common.sh

@@ -53,6 +53,30 @@ stat_done() {
 	printf "${BOLD}done${ALL_OFF}\n" >&2
 }
 
+msg_success() {
+	local msg=$1
+	local padding
+	padding=$(echo "${msg}"|sed -E 's/( *).*/\1/')
+	msg=$(echo "${msg}"|sed -E 's/ *(.*)/\1/')
+	printf "%s %s\n" "${padding}${GREEN}✓${ALL_OFF}" "${msg}" >&2
+}
+
+msg_error() {
+	local msg=$1
+	local padding
+	padding=$(echo "${msg}"|sed -E 's/( *).*/\1/')
+	msg=$(echo "${msg}"|sed -E 's/ *(.*)/\1/')
+	printf "%s %s\n" "${padding}${RED}x${ALL_OFF}" "${msg}" >&2
+}
+
+msg_warn() {
+	local msg=$1
+	local padding
+	padding=$(echo "${msg}"|sed -E 's/( *).*/\1/')
+	msg=$(echo "${msg}"|sed -E 's/ *(.*)/\1/')
+	printf "%s %s\n" "${padding}${YELLOW}!${ALL_OFF}" "${msg}" >&2
+}
+
 _setup_workdir=false
 setup_workdir() {
 	[[ -z ${WORKDIR:-} ]] && WORKDIR=$(mktemp -d --tmpdir "${0##*/}.XXXXXXXXXX")