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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,162 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you 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. | ||
| */ | ||
|
|
||
| import java.io.IOException; | ||
| import java.net.URI; | ||
| import java.net.http.HttpClient; | ||
| import java.net.http.HttpClient.Redirect; | ||
| import java.net.http.HttpRequest; | ||
| import java.net.http.HttpResponse.BodyHandlers; | ||
| import java.time.Duration; | ||
| import java.util.List; | ||
|
|
||
| import static java.util.stream.Gatherers.fold; | ||
| import static java.util.stream.Gatherers.scan; | ||
| import static java.util.stream.Gatherers.windowSliding; | ||
|
|
||
| record Commit(int index, String from, String date, String subject, String blank) {} | ||
| record Result(int total, boolean green) {} | ||
|
|
||
| // checks commit headers for valid author, email and commit msg formatting | ||
| // its main purpose is to prevent common merge mistakes | ||
|
|
||
| // Java 23+, may require preview flag | ||
| // java CommitHeaderChecker.java https://github.com/apache/netbeans/pull/${{ github.event.pull_request.number }} | ||
|
|
||
| // green tests: | ||
| // java --enable-preview CommitHeaderChecker.java https://github.com/apache/netbeans/pull/66 | ||
| // java --enable-preview CommitHeaderChecker.java https://github.com/apache/netbeans/pull/7641 | ||
| // java --enable-preview CommitHeaderChecker.java https://github.com/apache/netbeans/pull/4138 | ||
| // java --enable-preview CommitHeaderChecker.java https://github.com/apache/netbeans/pull/4692 | ||
|
|
||
| // red tests: | ||
| // java --enable-preview CommitHeaderChecker.java https://github.com/apache/netbeans/pull/7776 | ||
| // java --enable-preview CommitHeaderChecker.java https://github.com/apache/netbeans/pull/5567 | ||
|
|
||
| void main(String[] args) throws IOException, InterruptedException { | ||
|
|
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| if (args.length != 1 || !args[0].startsWith("https://github.com/")) { | ||
| throw new IllegalArgumentException("PR URL expected"); | ||
| } | ||
|
|
||
| HttpRequest request = HttpRequest.newBuilder() | ||
| .uri(URI.create(args[0]+".patch")) | ||
| .timeout(Duration.ofSeconds(10)) | ||
| .build(); | ||
|
|
||
| println("checking PR patch file..."); | ||
| Result result; | ||
| try (HttpClient client = HttpClient.newBuilder() | ||
| .followRedirects(Redirect.NORMAL).build()) { | ||
|
|
||
| result = client.send(request, BodyHandlers.ofLines()).body() | ||
| // 5 line window, From/Date/Subject and extra line for blank line / overflow check | ||
| // "From" can be two lines if the name is very long | ||
| .gather(windowSliding(5)) | ||
| .filter(w -> isCommitHeader(w)) | ||
| .gather(scan( | ||
| () -> new Commit(-1, "", "", "", ""), | ||
| (c, w) -> createCommit(c.index+1, w))) | ||
| .peek(System.out::println) | ||
| .gather(fold( | ||
| () -> new Result(0, true), | ||
| (r, c) -> new Result(r.total+1, r.green & checkCommit(c)))) | ||
| .findFirst() | ||
| .orElseThrow(); | ||
| } | ||
|
|
||
| println(result.total + " commit(s) checked"); | ||
| System.exit(result.green ? 0 : 1); | ||
| } | ||
|
|
||
| // From: Duke <[email protected]> | ||
| // Date: Thu, 1 Oct 2024 22:10:50 -0700 | ||
| // Subject: [PATCH] Mail Validator | ||
| private static boolean isCommitHeader(List<String> lines) { | ||
| int i = 0; | ||
| return lines.size() == 5 | ||
| && lines.get(i++).startsWith("From: ") // "From" can be two lines in some cases | ||
| &&(lines.get(i++).startsWith("Date: ") || lines.get(i++).startsWith("Date: ")) | ||
| && lines.get(i++).startsWith("Subject: "); | ||
| } | ||
|
|
||
| private static Commit createCommit(int index, List<String> lines) { | ||
| int i = 0; | ||
| return lines.get(1).startsWith("Date: ") // "From" can be two lines in some cases | ||
| ? new Commit(index, lines.get(i++), lines.get(i++), lines.get(i++), lines.get(i++)) | ||
| : new Commit(index, lines.get(i++) + lines.get(i++), lines.get(i++), lines.get(i++), lines.get(i++)); | ||
| } | ||
|
|
||
| boolean checkCommit(Commit c) { | ||
| return checkNameAndEmail(c.index, c.from) | ||
| & checkSubject(c.index, c.subject) | ||
| & checkBlankLineAfterSubject(c.index, c.blank); | ||
| } | ||
|
|
||
| boolean checkNameAndEmail(int i, String from) { | ||
| // From: Duke <[email protected]> | ||
| int start = from.indexOf('<'); | ||
| int end = from.indexOf('>'); | ||
|
|
||
| String mail = end > start ? from.substring(start+1, end) : ""; | ||
| String author = start > 6 ? from.substring(6, start).strip() : ""; | ||
|
|
||
| // bots may pass | ||
| if (author.contains("[bot]")) { | ||
| return true; | ||
| } | ||
|
|
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| boolean green = true; | ||
| if (mail.isBlank() || !mail.contains("@") || mail.contains("noreply") || mail.contains("localhost")) { | ||
| println("::error::invalid email in commit " + i + " '" + from + "'"); | ||
| green = false; | ||
| } | ||
|
|
||
| // mime encoding indicates it is probably a proper name, since gh account names aren't encoded | ||
| boolean encoded = author.startsWith("=?") && author.endsWith("?="); | ||
|
|
||
| // single word author -> probably the nickname/account name/root etc | ||
| if (author.isBlank() || (!encoded && !author.contains(" ") && !author.contains("-"))) { | ||
| println("::error::invalid author in commit " + i + " '" + author + "' (full name?)"); | ||
| green = false; | ||
| } | ||
| return green; | ||
| } | ||
|
|
||
| // https://mirrors.edge.kernel.org/pub/software/scm/git/docs/git-commit.html#_discussion | ||
| boolean checkSubject(int i, String subject) { | ||
| // Subject: [PATCH] msg | ||
| subject = subject.substring(subject.indexOf(']')+1).strip(); | ||
| // single word subjects are likely not intended or should be squashed before merge | ||
| if (!subject.contains(" ")) { | ||
| println("::error::invalid subject in commit " + i + " '" + subject + "'"); | ||
| return false; | ||
| } | ||
| return true; | ||
| } | ||
|
|
||
| // there should be a blank line after the subject line, some subjects can overflow though. | ||
| boolean checkBlankLineAfterSubject(int i, String blank) { | ||
| // disabled since this would produce too many warnings due to overflowing subject lines | ||
| // if (!blank.isBlank()) { | ||
| // println("::warning::blank line after subject recommended in commit " + i + " (is subject over 50 char limit?)"); | ||
| //// return false; | ||
| // } | ||
| return true; | ||
| } |
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