Deploy to Bazel on release (#358)

Closes bazelbuild/rules_sass#28

Author: nex3

.travis.yml

@@ -119,6 +119,16 @@ jobs:
       skip_cleanup: true
       on: {tags: true}
 
+  # Deploy to Bazel.
+  - if: *deploy-if
+    env: *github-env
+    script: skip
+    deploy:
+      provider: script
+      script: pub run grinder update_bazel
+      skip_cleanup: true
+      on: {tags: true}
+
   # Deploy to Chocolatey.
   - if: *deploy-if
     env:

tool/grind.dart

@@ -7,6 +7,7 @@ import 'package:grinder/grinder.dart';
 import 'grind/npm.dart';
 import 'grind/synchronize.dart';
 
+export 'grind/bazel.dart';
 export 'grind/benchmark.dart';
 export 'grind/chocolatey.dart';
 export 'grind/github.dart';

tool/grind/bazel.dart

@@ -0,0 +1,49 @@
+// Copyright 2018 Google Inc. Use of this source code is governed by an
+// MIT-style license that can be found in the LICENSE file or at
+// https://opensource.org/licenses/MIT.
+
+import 'dart:io';
+
+import 'package:grinder/grinder.dart';
+import 'package:path/path.dart' as p;
+
+import 'utils.dart';
+
+@Task('Update the Bazel rules for the current version.')
+update_bazel() async {
+  ensureBuild();
+
+  var repo = await cloneOrPull("https://github.com/bazelbuild/rules_sass.git");
+
+  var packageFile = new File(p.join(repo, "sass", "package.json"));
+  log("updating ${packageFile.path}");
+  packageFile.writeAsStringSync(packageFile
+      .readAsStringSync()
+      .replaceFirst(new RegExp(r'"sass": "[^"]+"'), '"sass": "$version"'));
+
+  run("git",
+      arguments: [
+        "commit",
+        "--all",
+        "--message",
+        "Update Dart Sass to $version"
+      ],
+      workingDirectory: repo,
+      runOptions: sassBotEnvironment);
+
+  run("git",
+      arguments: ["tag", version],
+      workingDirectory: repo,
+      runOptions: sassBotEnvironment);
+
+  var username = environment('GITHUB_USER');
+  var password = environment('GITHUB_AUTH');
+  await runAsync("git",
+      arguments: [
+        "push",
+        "--tags",
+        "https://$username:$password@github.com/bazelbuild/rules_sass.git",
+        "master:master"
+      ],
+      workingDirectory: repo);
+}

tool/grind/homebrew.dart

@@ -46,12 +46,7 @@ update_homebrew() async {
         "Update Dart Sass to $version"
       ],
       workingDirectory: repo,
-      runOptions: new RunOptions(environment: {
-        "GIT_AUTHOR_NAME": "Sass Bot",
-        "GIT_AUTHOR_EMAIL": "sass.bot.beep.boop@gmail.com",
-        "GIT_COMMITTER_NAME": "Sass Bot",
-        "GIT_COMMITTER_EMAIL": "sass.bot.beep.boop@gmail.com"
-      }));
+      runOptions: sassBotEnvironment);
 
   var username = environment('GITHUB_USER');
   var password = environment('GITHUB_AUTH');

tool/grind/utils.dart

@@ -20,6 +20,14 @@ final String version =
 final Version dartVersion =
     new Version.parse(Platform.version.split(" ").first);
 
+/// Options for [run] that tell Git to commit using SassBot's name and email.
+final sassBotEnvironment = new RunOptions(environment: {
+  "GIT_AUTHOR_NAME": "Sass Bot",
+  "GIT_AUTHOR_EMAIL": "sass.bot.beep.boop@gmail.com",
+  "GIT_COMMITTER_NAME": "Sass Bot",
+  "GIT_COMMITTER_EMAIL": "sass.bot.beep.boop@gmail.com"
+});
+
 /// Whether we're using a dev Dart SDK.
 bool get isDevSdk => dartVersion.isPreRelease;