ci: Check packages for updates and trigger pack release when new packages are available

.gitlab-ci.yml

@@ -174,4 +174,80 @@ build:
     - docker manifest annotate "ghcr.io/$DOCKERHUB_USER/$DOCKERHUB_REPO:$CI_COMMIT_TAG" "ghcr.io/$DOCKERHUB_USER/$DOCKERHUB_REPO:arm64-$CI_COMMIT_TAG" --os linux --arch arm64 --variant v8
     - docker manifest push --purge "ghcr.io/$DOCKERHUB_USER/$DOCKERHUB_REPO:$CI_COMMIT_TAG"
   only:
-    - tags
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+    - tags
+
+Check Packages:on-schedule:
+  only:
+    - schedules
+  before_script:
+    - |-
+      # Check and, if necessary, update git user and mail
+      if [[ "$(git config --list | grep user.name)" != "user.name=$GIT_USER" ]];then
+        git config --global user.name $GIT_USER
+      fi
+      if [[ "$(git config --list | grep user.email)" != "user.email=$GIT_MAIL" ]];then
+        git config --global user.email $GIT_MAIL
+      fi
+      
+      # Clean system of potentially interrupting images
+      docker image rm -f $DOCKERHUB_USER/$DOCKERHUB_REPO:latest
+      docker image rm -f localbuild
+      rm -rf /tmp/$CI_PROJECT_PATH
+      mkdir -p /tmp/$CI_PROJECT_PATH
+  script:
+    - |-
+      # Clone the repository
+      git clone $CI_PROJECT_URL.git /tmp/$CI_PROJECT_PATH && \
+      cd /tmp/$CI_PROJECT_PATH && \
+      
+      # Build local image for new package versions list
+      docker build --tag localbuild . && \
+      
+      # Get packages from newly build local image
+      docker run --rm --entrypoint /bin/sh -v /tmp/$CI_PROJECT_PATH:/tmp/$CI_PROJECT_PATH localbuild -c '\
+        apt list -qq --installed > /tmp/$CI_PROJECT_PATH/package_versions_new.txt && \
+        sort -o /tmp/$CI_PROJECT_PATH/package_versions_new.txt  /tmp/$CI_PROJECT_PATH/package_versions_new.txt && \
+        chmod 777 /tmp/$CI_PROJECT_PATH/package_versions_new.txt' && \
+      
+      # Gather package information from latest build
+      docker run --rm --entrypoint /bin/sh -v /tmp/$CI_PROJECT_PATH:/tmp/$CI_PROJECT_PATH $DOCKERHUB_USER/$DOCKERHUB_REPO:latest -c '\
+        apt list -qq --installed > /tmp/$CI_PROJECT_PATH/package_versions_old.txt && \
+        sort -o /tmp/$CI_PROJECT_PATH/package_versions_old.txt  /tmp/$CI_PROJECT_PATH/package_versions_old.txt && \
+        chmod 777 /tmp/$CI_PROJECT_PATH/package_versions_old.txt' && \
+      
+      # Get checksum of old packages
+      OLD_CHECKSUM=$(md5sum /tmp/$CI_PROJECT_PATH/package_versions_old.txt | cut -f1 -d" ") && \
+      
+      # Get checksum of new packages
+      NEW_CHECKSUM=$(md5sum /tmp/$CI_PROJECT_PATH/package_versions_new.txt | cut -f1 -d" ") && \
+      
+      # If new checksum is not the same as old checksum, we have new versions
+      if [ "${OLD_CHECKSUM}" != "${NEW_CHECKSUM}" ]; then
+      
+        # Checkout our branch
+        git --git-dir /tmp/$CI_PROJECT_PATH.git checkout -f master && \
+      
+        # Copy the new package versions list to repository
+        cp -f /tmp/$CI_PROJECT_PATH/package_versions_new.txt /tmp/$CI_PROJECT_PATH/package_versions.txt && \
+        rm -f /tmp/$CI_PROJECT_PATH/package_versions_new.txt /tmp/$CI_PROJECT_PATH/package_versions_old.txt && \
+        
+        wait && \
+      
+        # Add and commit new file to repository
+        git add /tmp/$CI_PROJECT_PATH/package_versions.txt && \
+        git commit -m 'build: Update installed packages.' && \
+      
+        # Push the changes to the remote
+        git push "https://$GIT_USER:$GITLAB_TOKEN@$CI_SERVER_HOST/$CI_PROJECT_PATH.git" --all && \
+      
+        # Nice
+        echo "Packages updated."
+      else
+        echo "No package updates available."
+      fi
+  after_script:
+    - |-
+      docker image rm -f $DOCKERHUB_USER/$DOCKERHUB_REPO:latest
+      docker image rm -f localbuild
+      rm -rf /tmp/$CI_PROJECT_PATH
+      echo "Done."
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