| // Copyright (C) 2020 The Android Open Source Project |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| package com.googlesource.gerrit.plugins.zuul.util; |
| |
| import com.google.common.collect.Lists; |
| import com.google.gerrit.entities.Project; |
| import com.google.gerrit.extensions.common.ChangeInfo; |
| import com.google.gerrit.extensions.restapi.AuthException; |
| import com.google.gerrit.extensions.restapi.BadRequestException; |
| import com.google.gerrit.extensions.restapi.Response; |
| import com.google.gerrit.extensions.restapi.TopLevelResource; |
| import com.google.gerrit.server.change.RevisionResource; |
| import com.google.gerrit.server.permissions.PermissionBackendException; |
| import com.google.gerrit.server.restapi.change.ChangesCollection; |
| import com.google.gerrit.server.restapi.change.QueryChanges; |
| import com.google.inject.Inject; |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.List; |
| import org.apache.commons.lang3.tuple.ImmutablePair; |
| import org.apache.commons.lang3.tuple.Pair; |
| import org.eclipse.jgit.errors.RepositoryNotFoundException; |
| |
| /** Fetches the Depends-On part of cross repository dependencies. */ |
| public class DependsOnFetcher { |
| private final ChangesCollection changes; |
| private final CommitMessageFetcher commitMessageFetcher; |
| private final DependsOnExtractor dependsOnExtractor; |
| |
| @Inject |
| public DependsOnFetcher( |
| ChangesCollection changes, |
| CommitMessageFetcher commitMessageFetcher, |
| DependsOnExtractor dependsOnExtractor) { |
| this.changes = changes; |
| this.commitMessageFetcher = commitMessageFetcher; |
| this.dependsOnExtractor = dependsOnExtractor; |
| } |
| |
| @SuppressWarnings("unchecked") |
| private List<ChangeInfo> fetchChangeInfosForChangeKeys(List<String> keys) |
| throws BadRequestException, AuthException, PermissionBackendException { |
| List<ChangeInfo> ret; |
| if (keys.isEmpty()) { |
| ret = new ArrayList<>(); |
| } else { |
| QueryChanges query = changes.list(); |
| String queryString = "change:" + String.join(" OR change:", keys); |
| query.addQuery(queryString); |
| Response<List<?>> response = query.apply(TopLevelResource.INSTANCE); |
| ret = (List<ChangeInfo>) response.value(); |
| } |
| return ret; |
| } |
| |
| public Pair<List<ChangeInfo>, List<String>> fetchForRevision(RevisionResource rsrc) |
| throws RepositoryNotFoundException, IOException, BadRequestException, AuthException, |
| PermissionBackendException { |
| Project.NameKey p = rsrc.getChange().getProject(); |
| String rev = rsrc.getPatchSet().commitId().getName(); |
| String commitMsg = commitMessageFetcher.fetch(p, rev); |
| |
| List<String> extractedChangeKeys = dependsOnExtractor.extract(commitMsg); |
| List<ChangeInfo> foundChangeInfos = fetchChangeInfosForChangeKeys(extractedChangeKeys); |
| |
| // `extracted` and `found` need not agree in size. It might be that a Change-Id from |
| // `extracted` matches more than one Change (E.g.: cherry-picked to different branch). And it |
| // might be that a Change-Id from `extracted` does not yield a result. |
| // So we need to check that `found` holds at least one ChangeInfo for each Change-Id in |
| // `extractedDependsOn`. |
| |
| List<String> resultMissing = Lists.newArrayList(extractedChangeKeys); |
| List<ChangeInfo> resultFound = new ArrayList<>(extractedChangeKeys.size()); |
| |
| for (ChangeInfo changeInfo : foundChangeInfos) { |
| String changeId = changeInfo.changeId.toString(); |
| if (extractedChangeKeys.contains(changeId)) { |
| resultMissing.remove(changeId); |
| resultFound.add(changeInfo); |
| } |
| } |
| return new ImmutablePair<>(resultFound, resultMissing); |
| } |
| } |