Merge pull request #106 from sass/homebrew

Automate Homebrew deployment

Author: nex3

.travis.yml

@@ -99,6 +99,17 @@ jobs:
       skip_cleanup: true
       on: {tags: true}
 
+  # Deploy to Homebrew.
+  - name: Homebrew
+    if: *deploy-if
+    env: *github-env
+    script: skip
+    deploy:
+      provider: script
+      script: pub run grinder update-homebrew
+      skip_cleanup: true
+      on: {tags: true}
+
   # Deploy to Chocolatey.
   - name: Chocolatey
     if: *deploy-if

CHANGELOG.md

@@ -1,3 +1,7 @@
+## 1.0.0-beta.1
+
+* Too many changes to list.
+
 ## 1.0.0-alpha.5
 
 * **Breaking change**: Remove `lib/runner.dart`. This package is only meant to

pubspec.yaml

@@ -1,5 +1,5 @@
 name: sass_migrator
-version: 1.0.0-dev
+version: 1.0.0-beta.1
 description: A tool for running migrations on Sass files
 author: Jennifer Thakar <[email protected]>
 homepage: https://github.com/sass/migrator

tool/grind.dart

@@ -7,6 +7,7 @@ import 'package:grinder/grinder.dart';
 export 'grind/chocolatey.dart';
 export 'grind/npm.dart';
 export 'grind/github.dart';
+export 'grind/homebrew.dart';
 export 'grind/sanity_check.dart';
 export 'grind/standalone.dart';
 

tool/grind/homebrew.dart

@@ -0,0 +1,60 @@
+// Copyright 2019 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 'dart:convert';
+
+import 'package:crypto/crypto.dart';
+import 'package:grinder/grinder.dart';
+import 'package:path/path.dart' as p;
+
+import 'utils.dart';
+
+/// A regular expression for locating the URL and SHA256 hash of the Sass
+/// archive in the `homebrew-sass` formula.
+final _homebrewRegExp = RegExp(r'\n( *)url "[^"]+"'
+    r'\n *sha256 "[^"]+"');
+
+@Task('Update the Homebrew formula for the current version.')
+updateHomebrew() async {
+  ensureBuild();
+
+  var process = await Process.start("git",
+      ["archive", "--prefix=migrator-$version/", "--format=tar.gz", version]);
+  var digest = await sha256.bind(process.stdout).first;
+  var stderr = await utf8.decodeStream(process.stderr);
+  if ((await process.exitCode) != 0) {
+    fail('git archive "$version" failed:\n$stderr');
+  }
+
+  var repo = await cloneOrPull("https://github.com/sass/homebrew-sass.git");
+
+  var formula = File(p.join(repo, "migrator.rb"));
+  log("updating ${formula.path}");
+  formula.writeAsStringSync(formula.readAsStringSync().replaceFirstMapped(
+      _homebrewRegExp,
+      (match) => '\n${match[1]}url '
+          '"https://github.com/sass/migrator/archive/$version.tar.gz"'
+          '\n${match[1]}sha256 "$digest"'));
+
+  run("git",
+      arguments: [
+        "commit",
+        "--all",
+        "--message",
+        "Update the Sass migrator to $version"
+      ],
+      workingDirectory: repo,
+      runOptions: sassBotEnvironment);
+
+  var username = environment('GITHUB_USER');
+  var password = environment('GITHUB_AUTH');
+  await runAsync("git",
+      arguments: [
+        "push",
+        "https://$username:$password@github.com/sass/homebrew-sass.git",
+        "HEAD:master"
+      ],
+      workingDirectory: repo);
+}