contribute a publishing automation action (#796)

* contribute a publishing automation action

* update the on push tag pattern

* require Dart 2.17 for protoc_plugin

* Update publish.yaml

Author: devoncarew

.github/dependabot.yml

@@ -1,9 +1,8 @@
-# Set update schedule for GitHub Actions
-# See https://docs.github.com/en/free-pro-team@latest/github/administering-a-repository/keeping-your-actions-up-to-date-with-dependabot
+# Dependabot configuration file.
+# See https://docs.github.com/en/code-security/dependabot/dependabot-version-updates
 
 version: 2
 updates:
-
 - package-ecosystem: "github-actions"
   directory: "/"
   schedule:

.github/workflows/dart.yml

@@ -270,23 +270,23 @@ jobs:
       - job_005
       - job_006
   job_008:
-    name: "run_tests; linux; Dart 2.12.0; PKG: protoc_plugin; `./../tool/setup.sh`, `make protos`, `dart test`"
+    name: "run_tests; linux; Dart 2.17.0; PKG: protoc_plugin; `./../tool/setup.sh`, `make protos`, `dart test`"
     runs-on: ubuntu-latest
     steps:
       - name: Cache Pub hosted dependencies
         uses: actions/cache@627f0f41f6904a5b1efbaed9f96d9eb58e92e920
         with:
           path: "~/.pub-cache/hosted"
-          key: "os:ubuntu-latest;pub-cache-hosted;sdk:2.12.0;packages:protoc_plugin;commands:command_0-command_3-test_0"
+          key: "os:ubuntu-latest;pub-cache-hosted;sdk:2.17.0;packages:protoc_plugin;commands:command_0-command_3-test_0"
           restore-keys: |
-            os:ubuntu-latest;pub-cache-hosted;sdk:2.12.0;packages:protoc_plugin
-            os:ubuntu-latest;pub-cache-hosted;sdk:2.12.0
+            os:ubuntu-latest;pub-cache-hosted;sdk:2.17.0;packages:protoc_plugin
+            os:ubuntu-latest;pub-cache-hosted;sdk:2.17.0
             os:ubuntu-latest;pub-cache-hosted
             os:ubuntu-latest
       - name: Setup Dart SDK
         uses: dart-lang/setup-dart@a57a6c04cf7d4840e88432aad6281d1e125f0d46
         with:
-          sdk: "2.12.0"
+          sdk: "2.17.0"
       - id: checkout
         name: Checkout repository
         uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c
@@ -525,23 +525,23 @@ jobs:
       - job_005
       - job_006
   job_015:
-    name: "run_legacy_tests; linux; Dart 2.12.0; PKG: protoc_plugin; `./../tool/setup.sh`, `make protos`, `dart test legacy_tests/generated_message_test.dart`"
+    name: "run_legacy_tests; linux; Dart 2.17.0; PKG: protoc_plugin; `./../tool/setup.sh`, `make protos`, `dart test legacy_tests/generated_message_test.dart`"
     runs-on: ubuntu-latest
     steps:
       - name: Cache Pub hosted dependencies
         uses: actions/cache@627f0f41f6904a5b1efbaed9f96d9eb58e92e920
         with:
           path: "~/.pub-cache/hosted"
-          key: "os:ubuntu-latest;pub-cache-hosted;sdk:2.12.0;packages:protoc_plugin;commands:command_0-command_3-test_1"
+          key: "os:ubuntu-latest;pub-cache-hosted;sdk:2.17.0;packages:protoc_plugin;commands:command_0-command_3-test_1"
           restore-keys: |
-            os:ubuntu-latest;pub-cache-hosted;sdk:2.12.0;packages:protoc_plugin
-            os:ubuntu-latest;pub-cache-hosted;sdk:2.12.0
+            os:ubuntu-latest;pub-cache-hosted;sdk:2.17.0;packages:protoc_plugin
+            os:ubuntu-latest;pub-cache-hosted;sdk:2.17.0
             os:ubuntu-latest;pub-cache-hosted
             os:ubuntu-latest
       - name: Setup Dart SDK
         uses: dart-lang/setup-dart@a57a6c04cf7d4840e88432aad6281d1e125f0d46
         with:
-          sdk: "2.12.0"
+          sdk: "2.17.0"
       - id: checkout
         name: Checkout repository
         uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c

.github/workflows/publish.yaml

@@ -0,0 +1,19 @@
+# A CI configuration to auto-publish pub packages.
+
+name: Publish
+
+on:
+  # Trigger on pull requests that target the default branch.
+  pull_request:
+    branches: [ master ]
+  # Also, trigger when tags are pushed to the repo.
+  push:
+    tags: [ '[A-z]+-v[0-9]+.[0-9]+.[0-9]+*' ]
+
+# The script below will perform publishing checks (version checks, publishing
+# dry run, ...) when run on a PR, and perform an actual pub publish when run as
+# a result of a git tag event.
+jobs:
+  publish:
+    if: ${{ github.repository_owner == 'google' }}
+    uses: dart-lang/ecosystem/.github/workflows/publish.yaml@main

README.md

@@ -15,3 +15,8 @@ Package | Description | Published Version
 [protoc_plugin](protoc_plugin/) | A Dart back-end for the protoc compiler | [![pub package](https://img.shields.io/pub/v/protoc_plugin.svg)](https://pub.dev/packages/protoc_plugin)
 [api_benchmark](api_benchmark/) | Benchmarking for various API calls |
 [query_benchmark](query_benchmark/) | Benchmark for encoding and decoding of a "real-world" protobuf |
+
+## Publishing automation
+
+For information about our publishing automation and release process, see
+https://github.com/dart-lang/ecosystem/wiki/Publishing-automation.

protobuf/pubspec.yaml

@@ -1,8 +1,8 @@
 name: protobuf
 version: 3.0.0-dev
 description: >-
-  Runtime library for protocol buffers support.
-  Use https://pub.dev/packages/protoc_plugin to generate dart code for your '.proto' files.
+  Runtime library for protocol buffers support. Use with package:protoc_plugin
+  to generate dart code for your '.proto' files.
 repository: https://github.com/google/protobuf.dart/tree/master/protobuf
 
 environment:

protoc_plugin/CHANGELOG.md

@@ -6,6 +6,7 @@
 * Remove message constructor arguments. Constructors with arguments cause
   increase in release binary sizes even when no arguments are passed to the
   constructors. ([#703])
+* Require Dart `2.17`.
 
   **Migration:**
 

protoc_plugin/pubspec.yaml

@@ -1,10 +1,10 @@
 name: protoc_plugin
 version: 21.0.0-dev
-description: Protoc compiler plugin to generate Dart code
+description: A protobuf protoc compiler plugin used to generate Dart code.
 repository: https://github.com/google/protobuf.dart/tree/master/protoc_plugin
 
 environment:
-  sdk: '>=2.12.0 <3.0.0'
+  sdk: '>=2.17.0 <3.0.0'
 
 dependencies:
   fixnum: ^1.0.0
@@ -19,7 +19,3 @@ dev_dependencies:
 
 executables:
   protoc-gen-dart: protoc_plugin
-
-dependency_overrides:
-  protobuf:
-    path: ../protobuf

protoc_plugin/pubspec_overrides.yaml

@@ -0,0 +1,3 @@
+dependency_overrides:
+  protobuf:
+    path: ../protobuf