format and publish action for dart and flutter

Author: lohanidamodar

templates/dart/.github/workflows/format.yml.twig

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+name: Format and push
+
+# Github action will require permission to write to repo
+on:
+  pull_request:
+    branches:
+      - main
+  workflow_dispatch:
+
+jobs:
+  format:
+    runs-on: ubuntu-latest
+    container:
+        image:  dart:stable
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          persist-credentials: true
+          ref: ${{ '{{'}} github.event.pull_request.head.ref {{ '}}' }}
+
+      - name: Format Dart code
+        run: dart format .
+
+      - name: git config
+        run: git config --global --add safe.directory /__w/sdk-for-dart/sdk-for-dart # required to fix dubious ownership
+
+      - name: Add & Commit
+        uses: EndBug/[email protected]
+        with:
+            add: lib
+    

templates/dart/.github/workflows/publish.yml.twig

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+name: Publish to pub.dev
+
+on:
+  push:
+    tags:
+      - '[0-9]+.[0-9]+.[0-9]+*'
+
+jobs:
+  publish:
+    permissions:
+      id-token: write
+    uses: dart-lang/setup-dart/.github/workflows/publish.yml@v1
+    with:
+      environment: pub.dev

templates/flutter/.github/workflows/format.yml.twig

@@ -0,0 +1,33 @@
+name: Format and push
+
+# Github action will require permission to write to repo
+on:
+  pull_request:
+    branches:
+      - main
+  workflow_dispatch:
+
+jobs:
+  format:
+    runs-on: ubuntu-latest
+    container:
+        image:  dart:stable
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          persist-credentials: true
+          ref: ${{ '{{'}} github.event.pull_request.head.ref {{ '}}' }}
+
+      - name: Format Dart code
+        run: dart format .
+
+      - name: git config
+        run: git config --global --add safe.directory /__w/sdk-for-flutter/sdk-for-flutter # required to fix dubious ownership
+
+      - name: Add & Commit
+        uses: EndBug/[email protected]
+        with:
+            add: lib
+    

templates/flutter/.github/workflows/publish.yml.twig

@@ -0,0 +1,14 @@
+name: Publish to pub.dev
+
+on:
+  push:
+    tags:
+      - '[0-9]+.[0-9]+.[0-9]+*'
+
+jobs:
+  publish:
+    permissions:
+      id-token: write
+    uses: dart-lang/setup-dart/.github/workflows/publish.yml@v1
+    with:
+      environment: pub.dev