| // Copyright (c) 2019, the Dart project authors. Please see the AUTHORS file |
| // for details. 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:convert'; |
| |
| import 'package:firebase_functions_interop/firebase_functions_interop.dart'; |
| import 'package:node_http/node_http.dart' as http; |
| |
| class GerritInfo { |
| static const gerritUrl = 'https://dart-review.googlesource.com/changes'; |
| static final reviewRefRegExp = RegExp(r'refs/changes/(\d*)/(\d*)'); |
| static const trivialKinds = const { |
| 'TRIVIAL_REBASE', |
| 'NO_CHANGE', |
| 'NO_CODE_CHANGE', |
| }; |
| static const prefix = ")]}'\n"; |
| |
| Firestore firestore; |
| String review; |
| String patchset; |
| |
| GerritInfo(String changeRef, this.firestore) { |
| final match = reviewRefRegExp.matchAsPrefix(changeRef); |
| review = match[1]; |
| patchset = match[2]; |
| } |
| |
| // Fetch the owner, changeId, message, and date of a Gerrit change. |
| Future<void> update() async { |
| final client = http.NodeClient(); |
| var patchsetRef = firestore.document('reviews/$review/patchsets/$patchset'); |
| DocumentSnapshot patchsetDoc = await patchsetRef.get(); |
| if (patchsetDoc.exists) return; |
| |
| // Get the Gerrit change's commit from the Gerrit API. |
| final url = '$gerritUrl/$review?o=ALL_REVISIONS&o=DETAILED_ACCOUNTS'; |
| final response = await client.get(url); |
| final protectedJson = response.body; |
| if (!protectedJson.startsWith(prefix)) |
| throw Exception('Gerrit response missing prefix $prefix: $protectedJson'); |
| final reviewInfo = jsonDecode(protectedJson.substring(prefix.length)) |
| as Map<String, dynamic>; |
| final reviewRef = firestore.document('reviews/$review'); |
| await reviewRef |
| .setData(DocumentData.fromMap({'subject': reviewInfo['subject']})); |
| |
| // Add the patchset information to the patchsets subcollection. |
| final revisions = reviewInfo['revisions'].values.toList() |
| ..sort((a, b) => (a['_number'] as int).compareTo(b['_number'])); |
| var patchsetGroupFirst; |
| for (Map<String, dynamic> revision in revisions) { |
| final number = revision['_number']; |
| if (!trivialKinds.contains(revision['kind'])) { |
| patchsetGroupFirst = number; |
| } |
| patchsetRef = firestore.document('reviews/$review/patchsets/$number'); |
| |
| await patchsetRef.setData(DocumentData.fromMap({ |
| 'number': number, |
| 'patchset_group': patchsetGroupFirst, |
| 'description': revision['description'], |
| 'kind': revision['kind'] |
| })); |
| } |
| } |
| } |