add auto publish on pub.dev

.github/workflows/publish.yml

@@ -1,32 +1,24 @@
-name: Publish Package
+name: Publish to pub.dev
 
 on:
   push:
-    branches:
-      - "release/**"
+    tags:
+    - 'v[0-9]+.[0-9]+.[0-9]+*' # tag pattern on pub.dev: 'v'
 
+# Publish using custom workflow
 jobs:
-  build:
+  publish:
+    permissions:
+      id-token: write # This is required for authentication using OIDC
     runs-on: ubuntu-latest
-    container:
-      image: dart:latest
     steps:
       - uses: actions/checkout@v3
+      - uses: dart-lang/setup-dart@v1
       - name: Install dependencies
         run: dart pub get
       - name: Run tests
         run: dart pub run test
-      - name: Setup credentials
-        run: |
-          mkdir -p ~/.pub-cache 
-          cat <<EOF > ~/.pub-cache/credentials.json
-          {
-            "accessToken":"${{ secrets.PUB_DEV_PUBLISH_ACCESS_TOKEN }}",
-            "refreshToken":"${{ secrets.PUB_DEV_PUBLISH_REFRESH_TOKEN }}",
-            "tokenEndpoint":"https://accounts.google.com/o/oauth2/token",
-            "scopes": [ "openid", "https://www.googleapis.com/auth/userinfo.email" ],
-            "expiration": ${{ secrets.PUB_DEV_PUBLISH_EXPIRATION }}
-          }
-          EOF
-      - name: Publish package
-        run: dart pub publish -f
+      # Here you can insert custom steps you need
+      # - run: dart tool/generate-code.dart
+      - name: Publish
+        run: dart pub publish --force