Add new CI scripts that check, build, test and publish the images, move the .utilities

.utilities/update-docker-hub-full-description.sh

@@ -0,0 +1,46 @@
+#!/bin/bash
+
+# Docker Seafile client, help you mount a Seafile library as a volume.
+# Copyright (C) 2019-2020, flow.gunso@gmail.com
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+# Based upon https://gist.github.com/jlhawn/8f218e7c0b14c941c41f
+# and https://github.com/moikot/golang-dep/blob/master/.travis/push.sh
+
+# This action can only be done with the actual owner of the repository,
+# unless you can extend the collaborator's permissions but as far as I know, you can't.
+
+# Install required system packages.
+apk add curl jq
+
+# Get a token from hub.docker.com with the owner credentials.
+token=$(curl -s \
+        -X POST \
+        -H "Content-Type: application/json" \
+        -d '{"username": "'"$CI_REGISTRY_OWNER_USERNAME"'", "password": "'"$CI_REGISTRY_OWNER_PASSWORD"'"}' \
+        https://hub.docker.com/v2/users/login/ | jq -r .token)
+
+# Generate a JSON with the README.md as the full_description.
+json=$(jq -n \
+    --arg readme "$(<README.md)" \
+    '{"full_description": $readme}')
+
+# Update the Docker Hub repository's full_description.
+curl -s -L \
+    -X PATCH \
+    -d "$json" \
+    -H "Content-Type: application/json" \
+    -H "Authorization: JWT $token" \
+    https://cloud.docker.com/v2/repositories/$CI_REGISTRY_IMAGE/