1 /* 2 * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 package org.openjdk.skara.bots.mlbridge; 24 25 import org.openjdk.skara.forge.PullRequest; 26 import org.openjdk.skara.network.URIBuilder; 27 import org.openjdk.skara.vcs.*; 28 import org.openjdk.skara.vcs.openjdk.Issue; 29 30 import java.io.*; 31 import java.net.URI; 32 import java.nio.file.Path; 33 import java.util.Optional; 34 import java.util.stream.Collectors; 35 36 class PullRequestInstance { 37 private final PullRequest pr; 38 private final Repository localRepo; 39 private final Hash targetHash; 40 private final Hash headHash; 41 private final Hash baseHash; 42 private final URI issueTracker; 43 private final String projectPrefix; 44 45 PullRequestInstance(Path localRepoPath, PullRequest pr, URI issueTracker, String projectPrefix) { 46 this.pr = pr; 47 this.issueTracker = issueTracker; 48 this.projectPrefix = projectPrefix; 49 50 // Materialize the PR's target ref 51 try { 52 var repository = pr.repository(); 53 localRepo = Repository.materialize(localRepoPath, repository.url(), pr.targetRef()); 54 targetHash = localRepo.fetch(repository.url(), pr.targetRef()); 55 headHash = localRepo.fetch(repository.url(), pr.headHash().hex()); 56 baseHash = localRepo.mergeBase(targetHash, headHash); 57 } catch (IOException e) { 58 throw new UncheckedIOException(e); 59 } 60 } 61 62 Repository localRepo() { 63 return this.localRepo; 64 } 65 66 Hash baseHash() { 67 return this.baseHash; 68 } 69 70 Hash headHash() { 71 return this.headHash; 72 } 73 74 String diffUrl() { 75 return pr.webUrl() + ".diff"; 76 } 77 78 String fetchCommand() { 79 var repoUrl = pr.repository().webUrl(); 80 return "git fetch " + repoUrl + " " + pr.sourceRef() + ":pull/" + pr.id(); 81 } 82 83 String stats(Hash base, Hash head) { 84 try { 85 var diff = localRepo.diff(base, head); 86 var inserted = diff.added(); 87 var deleted = diff.removed(); 88 var modified = diff.modified(); 89 var linesChanged = inserted + deleted + modified; 90 var filesChanged = diff.patches().size(); 91 return String.format("%d line%s in %d file%s changed: %d ins; %d del; %d mod", 92 linesChanged, 93 linesChanged == 1 ? "" : "s", 94 filesChanged, 95 filesChanged == 1 ? "" : "s", 96 inserted, 97 deleted, 98 modified); 99 } catch (IOException e) { 100 throw new UncheckedIOException(e); 101 } 102 } 103 104 Optional<String> issueUrl() { 105 var issue = Issue.fromString(pr.title()); 106 return issue.map(value -> URIBuilder.base(issueTracker).appendPath(projectPrefix + "-" + value.id()).build().toString()); 107 } 108 109 @FunctionalInterface 110 interface CommitFormatter { 111 String format(Commit commit); 112 } 113 114 String formatCommitMessages(Hash first, Hash last, CommitFormatter formatter) { 115 try (var commits = localRepo().commits(first.hex() + ".." + last.hex())) { 116 return commits.stream() 117 .map(formatter::format) 118 .collect(Collectors.joining("\n")); 119 } catch (IOException e) { 120 throw new UncheckedIOException(e); 121 } 122 } 123 124 String id() { 125 return pr.id(); 126 } 127 128 PullRequest pr() { 129 return pr; 130 } 131 }