Added runner to build Linux application

.gitea/workflows/release-linux.yml

@@ -0,0 +1,64 @@
+name: Build and Package JRuby Rails App
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+
+      - name: Set up Ruby & JRuby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: jruby-9.4.6.0 # Match your target JRuby version
+
+      - name: Install Dependencies
+        run: |
+          bundle install
+
+      - name: Build JAR with Jarbler
+        run: |
+          gem install jarbler
+          jarble
+
+      - name: Set up Java JDK (for jpackage)
+        uses: actions/setup-java@v4
+        with:
+          distribution: 'temurin'
+          java-version: '17'
+
+      - name: Generate Unique App Name with Git Hash
+        id: vars
+        run: |
+          SHORT_HASH=$(git rev-parse --short HEAD)
+          echo "app_name=custom-app-${SHORT_HASH}" >> $GITHUB_OUTPUT
+
+      - name: Package with jpackage
+        run: |
+          # Find the generated jar file name dynamically
+          JAR_FILE=$(ls build/*.jar | head -n 1)
+          
+          # Run jpackage to bundle the application and runtime into an app-image directory
+          jpackage \
+            --type app-image \
+            --name "${{ steps.vars.outputs.app_name }}" \
+            --input "$(dirname "$JAR_FILE")" \
+            --main-jar "$(basename "$JAR_FILE")" \
+            --dest dist
+
+      - name: Compress Executable Package
+        run: |
+          cd dist
+          tar -czvf "${{ steps.vars.outputs.app_name }}.tar.gz" "${{ steps.vars.outputs.app_name }}"
+
+      - name: Upload Artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: ${{ steps.vars.outputs.app_name }}
+          path: dist/*.tar.gz