[flatpak] Added official Flatpak GH Action to release.yml

.github/workflows/flatpak.yml

@@ -1,105 +0,0 @@
-name: Build Release Flatpaks
-
-on:
-  push:
-    branches:
-    - master
-    - flatpak # TODO: Remove this line once the workflow has been validated to work.
-
-env:
-  APP_ID: pizza.isle.Isle
-
-jobs:
-  build:
-    name: ${{ matrix.name }}
-    runs-on: ${{ matrix.os }}
-
-    env:
-      BUILD_DIR: "./flatpak-build"
-      PLATFORM: "org.kde"
-      PLATFORM_VERSION: 6.8
-      REPO_DIR: "./isle-repo/"
-
-    strategy:
-      fail-fast: false
-      matrix:
-        include:
-        - name: 'x86_64'
-          os: 'ubuntu-latest'
-
-          # The Ubuntu ARM runner is in preview, so we may have to figure out Flatpak cross-compilation
-        - name: "aarch64"
-          os: 'ubuntu-22.04-arm'
-
-    steps:
-      - name: Get Date
-        id: get-date
-        run: |
-          echo "date=$(/bin/date -u "+%Y%m%d")" >> $GITHUB_OUTPUT
-        shell: bash
-
-      - name: Cache APT repo data
-        id: cache-apt
-        uses: actions/cache@v4
-        with:
-          path: |
-            /var/cache/apt/
-            /var/lib/apt/lists/
-          key: ${{ runner.os }}-${{ matrix.name }}-${{ steps.get-date.outputs.date }}
-
-      - name: Update APT cache
-        if: steps.cache-apt.outputs.cache-hit != 'true'
-        run: sudo apt update
-
-      - name: Install build dependencies
-        run: |
-          sudo apt install -y flatpak flatpak-builder
-          flatpak remote-add --if-not-exists flathub https://dl.flathub.org/repo/flathub.flatpakrepo
-          flatpak install \
-            ${{ env.PLATFORM }}.Platform//${{ env.PLATFORM_VERSION }} \
-            ${{ env.PLATFORM }}.Sdk//${{ env.PLATFORM_VERSION }}
-
-      - name: Cache .flatpak-builder
-        id: cache-fp-builder
-        uses: actions/cache@v4
-        with:
-          path: ".flatpak-builder/"
-          key: ${{ runner.os }}-${{ matrix.name }}-fp-builder
-      
-      - name: Build Flatpak
-        run: |
-          mkdir ${{ env.REPO_DIR }}
-          flatpak-builder --repo=${{ env.REPO_DIR }} ${{ env.BUILD_DIR }} flatpak/${{ env.APP_ID }}.json
-
-      - name: Bundle Flatpak
-        run: flatpak build-bundle ${{ env.REPO_DIR }} ${{ env.APP_ID }}.${{ matrix.name }}.flatpak ${{ env.APP_ID }}
-
-      - name: Upload artifact
-        uses: actions/upload-artifact@main
-        with:
-          name: Release-${{ matrix.name }}
-          path: ${{ env.APP_ID }}.${{ matrix.name }}.flatpak
-  
-  release:
-    name: Release
-    runs-on: ubuntu-latest
-    needs: build
-    steps:
-      - name: Download All Artifacts
-        uses: actions/download-artifact@main
-        with:
-          pattern: Release-*
-          path: Release
-          merge-multiple: true
-
-      - name: Checkout uploadtool
-        uses: actions/checkout@v4
-        with:
-          repository: 'probonopd/uploadtool'
-          path: 'uploadtool'
-
-      - name: Upload Continuous Release
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-        run: |
-          ./uploadtool/upload.sh Release/*

.github/workflows/release.yml

@@ -4,6 +4,7 @@ on:
   push:
     branches:
       - master
+      - flatpak # TODO: Remove this line once the workflow has been validated to work.
 
 jobs:
   build:
@@ -91,6 +92,35 @@ jobs:
           path: |
             build/dist/isle-*
 
+  flatpak:
+    name: "Flatpak (${{ matrix.arch }})"
+    runs-on: ${{ matrix.os }}
+
+    env:
+      APP_ID: pizza.isle.Isle
+
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - arch: x86_64
+            os: ubuntu-latest
+          
+          - arch: aarch64
+            os: ubuntu-22.04-arm
+    
+    container:
+      image: ghcr.io/flathub-infra/flatpak-github-actions:kde-6.8
+      options: --privileged
+
+    steps:
+      - uses: actions/checkout@v4
+      - uses: flatpak/flatpak-github-actions/flatpak-builder@v6
+        with:
+          bundle: ${{ env.APP_ID }}.${{ matrix.arch }}.flatpak
+          manifest-path: flatpak/${{ env.APP_ID }}.json
+          arch: ${{ matrix.arch }}
+  
   release:
     name: 'Release'
     runs-on: ubuntu-latest