Add first draft of the package update notification

.utilities/package_update_notifier.sh

@@ -0,0 +1,71 @@
+#!/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/>.
+
+apk add curl jq
+
+# Load utilities functions.
+SCRIPT_DIRECTORY=$(dirname ${BASH_SOURCE[0]})
+source $SCRIPT_DIRECTORY/utilities.sh
+
+# Restrict the job to the right schedule.
+if [[ "$SCHEDULE_ID" != "$PACKAGE_UPDATE_NOTIFICATION_SCHEDULE_ID" ]]; then
+    exit_with_message_and_code "Schedule ID did not match." 0
+fi
+
+# Fetch the issue state if the ISSUE_ID variable is set,
+# if that state is closed remove the ISSUE_ID variable and continue the job, otherwise exit the job.
+if [[ -n "$ISSUE_ID" ]]; then
+    issue_state="$(curl -H \"PRIVATE-TOKEN: $REPORTER_BOT_ACCESS_TOKEN\" \
+        https://gitlab.com/api/v4/projects/$CI_PROJECT_ID/issue/$ISSUE_ID | jq .state)"
+    if [[ "$issue_state" == "closed" ]]; then
+        echo "An issue exist, but is closed. Removing ISSUE_ID schedule variable..."
+        echo 'curl -X DELETE \
+            -H "PRIVATE-TOKEN: $REPORTER_BOT_ACCESS_TOKEN" \
+            https://gitlab.com/api/v4/projects/$CI_PROJECT_ID/pipeline_schedules/$SCHEDULE_ID/variables/ISSUES_ID'
+    else
+        exit_with_message_and_code "An issue already exists, it is not closed yet." 0
+    fi
+fi
+
+# Get the installed and candidate versions of the seafile-cli package from the latest Docker image.
+docker pull $CI_REGISTRY_IMAGE:latest
+candidate_version=$(docker run --rm --entrypoint="" $CI_REGISTRY_IMAGE:latest \
+    bash -c "\
+        apt-get -qq update;\
+        apt-cache policy seafile-cli | grep 'Candidate:' | awk '{print \$2}'")
+installed_version=$(docker run --rm --entrypoint="" $CI_REGISTRY_IMAGE:latest \
+    bash -c "\
+        apt-get -qq update;\
+        apt-cache policy seafile-cli | grep 'Installed:' | awk '{print \$2}'")
+
+# Create an issue if a new version was released.
+if [[ "$installed_version" == "$candidate_version"]; then
+    exit_with_message_and_code "No new version of the seafile-cli package have been released." 0
+else
+    echo "A new version of the seafile-cli package have been released. Creating a new issue..."
+    data=$(jq -n \
+        --arg title "seafile-cli v${candidate_version} was released" \
+        --arg description "Check for new feature, breaking changes or anything worth updating to update the Docker image." \
+        --arg labels "enhancement" \
+        '{title: $title, description: $description, labels: [$labels]}')
+    echo 'curl -X POST \
+        -H "PRIVATE-TOKEN: $REPORTER_BOT_ACCESS_TOKEN" \
+        -H "Content-Type: application/json" \
+        -d "$data"
+        https://gitlab.com/api/v4/projects/$CI_PROJECT_ID/issues'
+fi