How to replace a property in a POM in a Maven/Jenkins job? - maven

Question

I have a project with client and server components. Both have their own Maven multi-module build projects.
The correct server version must be referenced in various frontend modules. To accomplish this I set a property in my client parent POM like this:
<properties>
<server.version>1.2.3</server.version>
</properties>
Now I'd like to update the version number in the POM (i.e. not just injecting a different version from the command line with -D...) during/after a Jenkins build job. Is there a way to do this?

Answer 1

I found the com.google.code.maven-replacer-plugin:replacer Maven plugin which works perfectly for my case. It accepts an xpath and a regex to define what to replace in an XML file.
Example plugin configuration:
<plugin>
<groupId>com.google.code.maven-replacer-plugin</groupId>
<artifactId>replacer</artifactId>
<version>1.5.3</version>
<configuration>
<file>${project.basedir}/pom.xml</file>
<xpath>/project/properties/server.version/text()</xpath>
<token>^.*$</token>
<value>${newServerVersion}</value>
</configuration>
</plugin>
And the plugin can be run for each affected maven module:
mvn --non-recursive replacer:replace -DnewServerVersion=xxxx

Answer 2

At itembase we use Jenkins Pipeline Plugin. It comes with some useful built in functions like for example readMavenPom and writeMavenPom. So in your build pipeline you could do something like:
def pom = readMavenPom file: 'pom.xml'
//Do some manipulation
writeMavenPom model: pom

Answer 3

Did you check maven versions plugin?
(Tbe website is shutdown but the plugin page is still avaiable in google cache)
mvn -DnewVersion=<version> versions:set