Update the homebrew recipe to not have Dartium dev versions.

tools/apps/update_homebrew/lib/update_homebrew.dart

 import 'dart:async';
 import 'dart:convert';
 import 'dart:io';
 
 import 'package:_discoveryapis_commons/_discoveryapis_commons.dart';
 import 'package:googleapis/storage/v1.dart' as storage;
 import 'package:http/http.dart' as http;
 import 'package:path/path.dart' as p;
 
 const GITHUB_REPO = 'dart-lang/homebrew-dart';
 
 const CHANNELS = const ['dev', 'stable'];
 
-const FILES = const [x64File, ia32File, dartiumFile, contentShellFile];
+const FILES = const {
+  'dev': const [x64File, ia32File],
+  'stable': const [x64File, ia32File, dartiumFile, contentShellFile]
+};
 
 const urlBase = 'https://storage.googleapis.com/dart-archive/channels';
 const x64File = 'sdk/dartsdk-macos-x64-release.zip';
 const ia32File = 'sdk/dartsdk-macos-ia32-release.zip';
 const dartiumFile = 'dartium/dartium-macos-x64-release.zip';
 const contentShellFile = 'dartium/content_shell-macos-x64-release.zip';
 
 const dartRbFileName = 'dart.rb';
 
 Future<String> getHash256(
@@ skipping 47 matching lines @@
     revisions[channel] =
         regExp.firstMatch(lines.firstWhere(regExp.hasMatch)).group(1);
   }
   return revisions;
 }
 
 Future<Map> getHashes(Map revisions) async {
   var hashes = <String, Map>{};
   for (var channel in CHANNELS) {
     hashes[channel] = {};
-    for (var file in FILES) {
+    for (var file in FILES[channel]) {
       var hash = await getHash256(channel, revisions[channel], file);
       hashes[channel][file] = hash;
     }
   }
   return hashes;
 }
 
 Future writeHomebrewInfo(
     String channel, String revision, String repository) async {
   var revisions = await getCurrentRevisions(repository);
@@ skipping 31 matching lines @@
 
   devel do
     version "$devVersion"
     if MacOS.prefer_64_bit?
       url "$urlBase/dev/release/${revisions['dev']}/$x64File"
       sha256 "${hashes['dev'][x64File]}"
     else
       url "$urlBase/dev/release/${revisions['dev']}/$ia32File"
       sha256 "${hashes['dev'][ia32File]}"
     end
-
-    resource "content_shell" do
-      version "$devVersion"
-      url "$urlBase/dev/release/${revisions['dev']}/$contentShellFile"
-      sha256 "${hashes['dev'][contentShellFile]}"
-    end
-
-    resource "dartium" do
-      version "$devVersion"
-      url "$urlBase/dev/release/${revisions['dev']}/$dartiumFile"
-      sha256 "${hashes['dev'][dartiumFile]}"
-    end
   end
 
   option "with-content-shell", "Download and install content_shell -- headless Dartium for testing"
-  option "with-dartium", "Download and install Dartium -- Chromium with Dar"
+  option "with-dartium", "Download and install Dartium -- Chromium with Dart"

[kevmoo, 2017/07/17 16:25:47]

Good find! :-)

 
   resource "content_shell" do
     version "$stableVersion"
     url "$urlBase/stable/release/${revisions['stable']}/$contentShellFile"
     sha256 "${hashes['stable'][contentShellFile]}"
   end
 
   resource "dartium" do
     version "$stableVersion"
     url "$urlBase/stable/release/${revisions['stable']}/$dartiumFile"
@@ skipping 50 matching lines @@
 Future runGit(List<String> args, String repository,
     Map<String, String> gitEnvironment) async {
   print("git ${args.join(' ')}");
 
   var result = await Process.run('git', args,
       workingDirectory: repository, environment: gitEnvironment);
 
   print(result.stdout);
   print(result.stderr);
 }