SVN Latest Revision Maven Plugin

Simple SVN Latest Revision Maven Plugin.

The SVN Latest Revision Plugin is used to retrieve the project latest SVN revision information from the project .svn folder and store it in a Maven properties. The plugin has only one goal svn-latest-revision:run executed in Maven INITIALIZE stage. The goal opens SVN SQLite database file in .svn project directory and queries it for the latest revision.

NOTE: the SVN latest revision reflects the latest checked-in however the project build may have not committed changes.

After this plugin goal execution the latest revision and its timestamp are stored in the Maven properties:

• svn.latest.revision
• svn.latest.timestamp

See also http://www.jdotsoft.com/SvnMavenPlugin.php

The plugin declaration in pom-file:

<plugin>
  <groupId>com.jdotsoft</groupId>
  <artifactId>svn-latest-revision-maven-plugin</artifactId>
  <version>1.2</version>
  <executions>
    <execution>
      <goals>
        <goal>run</goal>
      </goals>
    </execution>
  </executions>
  <configuration>
    <timestampFormat>dd-MMM-yyyy HH:mm</timestampFormat>
  </configuration>
</plugin>

The configuration timestampFormat is optional, the default value is dd-MMM-yyyy HH:mm

Example plugin console output:

[INFO] --- svn-latest-revision-maven-plugin:1.2:run (default) @ MyProject ---
[INFO] Opening SQLite SVN database file C:\projects\MyProject\.svn\wc.db
[INFO] Connected to DB. Latest revision:
[INFO]   1929 17-Jan-2022 20:09 | MyProject/src/main/java/com/jdotsoft/demo/Abc.java
[INFO]   1929 17-Jan-2022 20:09 | MyProject/src/main/java/com/jdotsoft/demo/Xyz.java

Maven properties defined by this plugin execution could be used, for example, in a MANIFEST.MF file:

<plugin>
  <groupId>org.apache.maven.plugins</groupId>
  <artifactId>maven-jar-plugin</artifactId>
  . . .
  <configuration>
    <archive>
      <manifestEntries>
        <Build-Time>${local.build.timestamp}</Build-Time>
        <SVN-latest-revision>${svn.latest.revision} ${svn.latest.timestamp}</SVN-latest-revision>
      </manifestEntries>
    </archive>
  </configuration>
</plugin>

Other features

Maven has a build-in property maven.build.timestamp which could be formatted with specified in a POM-file pattern:

<properties>
  <maven.build.timestamp.format>dd-MMM-yyyy HH:mm</maven.build.timestamp.format>
</properties>

Maven uses UTC timezone for build timestamp property maven.build.timestamp while SVN latest revision timestamp is in a local timezone. The time zone discrepancy could lead to a confusion if both timestamps are displayed to a user.

The SVN Latest Revision Plugin creates Maven property local.build.timestamp similar to maven.build.timestamp reusing the Maven timestamp format maven.build.timestamp.format. The property local.build.timestamp could be used as a maven.build.timestamp replacement to make both timestamps in local time zone (see example above).