Add auto update workflow for manifest.

.github/workflows/update_manifest.yml

@@ -0,0 +1,108 @@
+name: Check for updates
+
+on:
+  schedule: # for scheduling to work this file must be in the default branch
+  - cron: "0 * * * *" # run every hour
+  workflow_dispatch: # can be manually dispatched under GitHub's "Actions" tab
+
+env:
+# email sets "github-actions[bot]" as commit author, see https://github.community/t/github-actions-bot-email-address/17204/6
+  GIT_USER_NAME: github-actions[bot]
+  GIT_USER_EMAIL: 41898282+github-actions[bot]@users.noreply.github.com
+  FLATPAK_ID: com.artemis_rgb.Artemis
+
+jobs:
+  flatpak-external-data-checker:
+    runs-on: ubuntu-latest
+    container:
+      image: bilelmoussaoui/flatpak-github-actions:freedesktop-23.08
+      options: --privileged
+
+    strategy:
+      matrix:
+        branch: [ main ] # list all branches to check
+
+    steps:
+
+      - name: Install Python and yq
+        run: |
+          python -m ensurepip --upgrade
+          python -m pip install ruamel.yaml yq
+
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ matrix.branch }}
+          submodules: 'true'
+
+      - name: Check for Flatpak source updates via Flatpak External Data Checker
+        uses: docker://ghcr.io/flathub/flatpak-external-data-checker:latest
+        with:
+          args: --edit-only ${{ env.FLATPAK_ID }}.yml
+
+      - name: Attempt to update the Artemis git sources
+        run: |
+          ./.github/scripts/update-manifest.py
+
+      - name: Verify if git was updated
+        id: is-updated
+        run: |
+          git status -s -uno
+          [ -z "$(git status -s -uno)" ] || echo "updated=true" >> $GITHUB_OUTPUT
+
+      - name: Generate dotnet sources
+        if: steps.is-updated.outputs.updated
+        run: |
+          # Extract required information from the manifest
+          MANIFEST_FILE="${FLATPAK_ID}.yml"
+          echo "Parsing manifest file '$MANIFEST_FILE' to determine required Flatpak packages and ID..."
+          RUNTIME=$(yq e '.runtime' "$MANIFEST_FILE")
+          RUNTIME_VERSION=$(yq e '.["runtime-version"]' "$MANIFEST_FILE")
+          SDK=$(yq e '.sdk' "$MANIFEST_FILE")
+          SDK_EXTENSIONS=$(yq e '.["sdk-extensions"][]' "$MANIFEST_FILE" 2>/dev/null || echo "")
+          if [ -z "$RUNTIME" ] || [ -z "$RUNTIME_VERSION" ] || [ -z "$SDK" ] || [ -z "$FLATPAK_ID" ]; then
+              error "Failed to extract required fields (runtime, runtime-version, sdk, id) from manifest."
+          fi
+          REQUIRED_FLATPAK_PACKAGES=(
+              "$RUNTIME//$RUNTIME_VERSION"
+              "$SDK//$RUNTIME_VERSION"
+          )
+          # Add SDK extensions if any
+          if [ -n "$SDK_EXTENSIONS" ]; then
+              while IFS= read -r EXT; do
+                  REQUIRED_FLATPAK_PACKAGES+=("$EXT//$RUNTIME_VERSION")
+              done <<< "$SDK_EXTENSIONS"
+          fi
+          # Function to check if a Flatpak package is installed
+          is_flatpak_installed() {
+              local package="$1"
+              flatpak info "$package" &> /dev/null
+          }
+          # Install missing Flatpak packages
+          for package in "${REQUIRED_FLATPAK_PACKAGES[@]}"; do
+              if is_flatpak_installed "$package"; then
+                  echo "Flatpak package '$package' is already installed."
+              else
+                  echo "Flatpak package '$package' is not installed. Installing..."
+                  flatpak install -y flathub "$package" || error "Failed to install $package"
+              fi
+          done
+          ./generate-sources.py
+
+      - name: Reset Flatpak manifest to pre-modified state
+        run: |
+          git checkout -- ${FLATPAK_ID}.yml
+
+      - name: Run the Artemis git source updates again
+        run: |
+          ./.github/scripts/update-manifest.py
+
+      - name: Run Flatpak External Data Checker again and Open PR
+        uses: docker://ghcr.io/flathub/flatpak-external-data-checker:latest
+        env:
+          GIT_AUTHOR_NAME: Flatpak External Data Checker
+          GIT_COMMITTER_NAME: Flatpak External Data Checker
+          GIT_AUTHOR_EMAIL: ${{ env.GIT_USER_NAME }}
+          GIT_COMMITTER_EMAIL: ${{ env.GIT_USER_EMAIL }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          args: --update --never-fork ${{ env.FLATPAK_ID }}.yml