Initial commit of commit message length validation plugin
Replacing the checks that are removed from core Gerrit in
Ia0858b11e475c48f50ec63fbe0076239edf8f64b
Change-Id: I2b4bec03b0caefdf7c71606e7daa188c24b6c494
diff --git a/.gitignore b/.gitignore
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+++ b/.gitignore
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+.classpath
+.idea
+.project
+.settings
+target
diff --git a/LICENSE b/LICENSE
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--- /dev/null
+++ b/LICENSE
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diff --git a/pom.xml b/pom.xml
new file mode 100644
index 0000000..44b4248
--- /dev/null
+++ b/pom.xml
@@ -0,0 +1,82 @@
+<?xml version="1.0"?>
+<!--
+Copyright (C) 2012 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.
+-->
+<project
+ xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"
+ xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
+ <modelVersion>4.0.0</modelVersion>
+
+ <artifactId>commit-message-length-validator</artifactId>
+ <groupId>com.googlesource.gerrit.plugins.validators</groupId>
+ <packaging>jar</packaging>
+ <version>1.0-SNAPSHOT</version>
+
+ <properties>
+ <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+ <Gerrit-ApiType>plugin</Gerrit-ApiType>
+ <Gerrit-ApiVersion>2.6-SNAPSHOT</Gerrit-ApiVersion>
+ </properties>
+
+ <build>
+ <plugins>
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-jar-plugin</artifactId>
+ <version>2.4</version>
+ <configuration>
+ <archive>
+ <manifestEntries>
+ <Implementation-Title>Plugin ${project.artifactId}</Implementation-Title>
+ <Implementation-Version>${project.version}</Implementation-Version>
+ <Implementation-Vendor>Gerrit Code Review</Implementation-Vendor>
+ <Implementation-Vendor-URL>http://code.google.com/p/gerrit/</Implementation-Vendor-URL>
+ <Gerrit-ApiType>${Gerrit-ApiType}</Gerrit-ApiType>
+ <Gerrit-ApiVersion>${Gerrit-ApiVersion}</Gerrit-ApiVersion>
+ </manifestEntries>
+ </archive>
+ </configuration>
+ </plugin>
+
+ <plugin>
+ <groupId>org.apache.maven.plugins</groupId>
+ <artifactId>maven-compiler-plugin</artifactId>
+ <version>2.3.2</version>
+ <configuration>
+ <source>1.6</source>
+ <target>1.6</target>
+ <encoding>UTF-8</encoding>
+ </configuration>
+ </plugin>
+ </plugins>
+ </build>
+
+ <dependencies>
+ <dependency>
+ <groupId>com.google.gerrit</groupId>
+ <artifactId>gerrit-${Gerrit-ApiType}-api</artifactId>
+ <version>${Gerrit-ApiVersion}</version>
+ <scope>provided</scope>
+ </dependency>
+ </dependencies>
+
+ <repositories>
+ <repository>
+ <id>gerrit-api-repository</id>
+ <url>https://gerrit-api.commondatastorage.googleapis.com/release/</url>
+ </repository>
+ </repositories>
+
+</project>
diff --git a/src/main/java/com/googlesource/gerrit/plugins/validators/CommitMessageLengthValidation.java b/src/main/java/com/googlesource/gerrit/plugins/validators/CommitMessageLengthValidation.java
new file mode 100644
index 0000000..a8f2969
--- /dev/null
+++ b/src/main/java/com/googlesource/gerrit/plugins/validators/CommitMessageLengthValidation.java
@@ -0,0 +1,62 @@
+// Copyright (C) 2012 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.validators;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.eclipse.jgit.lib.AbbreviatedObjectId;
+import org.eclipse.jgit.revwalk.RevCommit;
+
+import com.google.gerrit.extensions.annotations.Listen;
+import com.google.gerrit.server.events.CommitReceivedEvent;
+import com.google.gerrit.server.git.validators.CommitValidationException;
+import com.google.gerrit.server.git.validators.CommitValidationListener;
+import com.google.gerrit.server.git.validators.CommitValidationMessage;
+import com.google.inject.Singleton;
+
+@Listen
+@Singleton
+public class CommitMessageLengthValidation implements CommitValidationListener {
+
+ @Override
+ public List<CommitValidationMessage> onCommitReceived(CommitReceivedEvent receiveEvent)
+ throws CommitValidationException {
+ final RevCommit commit = receiveEvent.commit;
+ final AbbreviatedObjectId id = commit.abbreviate(7);
+ List<CommitValidationMessage> messages = new ArrayList<CommitValidationMessage>();
+
+ if (65 < commit.getShortMessage().length()) {
+ messages.add(new CommitValidationMessage("(W) " + id.name() //
+ + ": commit subject >65 characters; use shorter first paragraph", false));
+ }
+
+ int longLineCnt = 0, nonEmptyCnt = 0;
+ for (String line : commit.getFullMessage().split("\n")) {
+ if (!line.trim().isEmpty()) {
+ nonEmptyCnt++;
+ }
+ if (70 < line.length()) {
+ longLineCnt++;
+ }
+ }
+
+ if (0 < longLineCnt && 33 < longLineCnt * 100 / nonEmptyCnt) {
+ messages.add(new CommitValidationMessage("(W) " + id.name() //
+ + ": commit message lines >70 characters; manually wrap lines", false));
+ }
+
+ return messages;
+ }
+}