How to fetch current subversion revision number and URL with maven

Question

I make a checkout of some branch or tag from subversion repository and then build the project with maven.

Now, I'd like to get store current revision number and URL to some file. How can I do that? That is, I'd like to get revision number and URL of whatever branch/tag I have made checkout of.

I know about buildnumber-maven-plugin but I think it doesn't do this. It fetches revision number of branch that is specified in pom.xml.

Answer 1

Solution exposed by user2990242 is great for standalone (thank you for good explanation). After that, you just have to add information in the manifest.mf with maven-jar plugin (or maven-war). here a full example:

        <plugin>
            <groupId>org.codehaus.mojo</groupId>
            <artifactId>buildnumber-maven-plugin</artifactId>
            <version>1.3</version>
            <executions>
                <execution>
                    <phase>validate</phase>
                    <goals>
                        <goal>create</goal>
                    </goals>
                </execution>
            </executions>
            <configuration>
                <timestampFormat>{0,date,dd-MM-yyyy HH:mm:ss}</timestampFormat>
                <doCheck>false</doCheck>
                <doUpdate>false</doUpdate>
                <providerImplementations>
                    <svn>javasvn</svn>
                </providerImplementations>
            </configuration>
            <dependencies>
                <dependency>
                    <groupId>com.google.code.maven-scm-provider-svnjava</groupId>
                    <artifactId>maven-scm-provider-svnjava</artifactId>
                    <version>2.1.1</version>
                </dependency>
                <dependency>
                    <groupId>org.tmatesoft.svnkit</groupId>
                    <artifactId>svnkit</artifactId>
                    <version>1.8.5</version>
                </dependency>
            </dependencies>
        </plugin>
        <plugin>
            <groupId>org.apache.maven.plugins</groupId>
            <artifactId>maven-jar-plugin</artifactId>
            <version>2.5</version>
            <configuration>
                <archive>
                    <manifest>
                        <addClasspath>true</addClasspath>
                    </manifest>
                    <manifestEntries>
                        <Implementation-Build>${buildNumber}</Implementation-Build>
                        <Implementation-Title>${project.name}</Implementation-Title>
                        <Implementation-Vendor>ENTERPRISE</Implementation-Vendor>
                        <Implementation-Version>${project.version}</Implementation-Version>
                        <Built-By>${user.name}</Built-By>
                        <Built-OS>${os.name}</Built-OS>
                        <Build-Date>${timestamp}</Build-Date>
                        <SCM-Revision>${buildNumber}</SCM-Revision>
                    </manifestEntries>
                </archive>
            </configuration>
        </plugin>