| // Copyright 2020 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| import 'dart:async'; |
| |
| import 'package:github/server.dart'; |
| import 'package:meta/meta.dart'; |
| |
| import '../datastore/cocoon_config.dart'; |
| import '../foundation/providers.dart'; |
| import '../foundation/typedefs.dart'; |
| import '../request_handlers/utils.dart'; |
| import '../request_handling/body.dart'; |
| import '../request_handling/request_handler.dart'; |
| |
| /// Queries GitHub for the list of all available branches on |
| /// [config.flutterSlug] repo, and returns list of branches |
| /// that match pre-defined branch regular expressions. |
| @immutable |
| class GetBranches extends RequestHandler<Body> { |
| const GetBranches( |
| Config config, { |
| @visibleForTesting |
| this.branchHttpClientProvider = Providers.freshHttpClient, |
| @visibleForTesting this.gitHubBackoffCalculator = twoSecondLinearBackoff, |
| }) : assert(branchHttpClientProvider != null), |
| assert(gitHubBackoffCalculator != null), |
| super(config: config); |
| |
| final HttpClientProvider branchHttpClientProvider; |
| final GitHubBackoffCalculator gitHubBackoffCalculator; |
| |
| @override |
| Future<Body> get() async { |
| final GitHub github = await config.createGitHubClient(); |
| final RepositorySlug slug = config.flutterSlug; |
| final Stream<Branch> branchList = github.repositories.listBranches(slug); |
| final List<String> regExps = await loadBranchRegExps( |
| branchHttpClientProvider, log, gitHubBackoffCalculator); |
| final List<String> branches = <String>[]; |
| |
| await for (Branch branch in branchList) { |
| if (regExps |
| .any((String regExp) => RegExp(regExp).hasMatch(branch.name))) { |
| branches.add(branch.name); |
| } |
| } |
| return Body.forJson(<String, List<String>>{'Branches': branches}); |
| } |
| } |
