Maven version with a property

Question

I have big Maven (Tycho) project witch about 400 plug-ins.

We have specified version of application in each POM file.

Is there a way how to specify the version for all POM:s only on one place?

I would expect some think like:

<properties> <buildVersion>1.1.2-SNAPSHOT</buildVersion> </properties>  ....  <version>${buildVersion}</version> 

We have parent pom.xml:

<modelVersion>4.0.0</modelVersion> <groupId>company</groupId> <artifactId>build.parent</artifactId> <version>1.1.2-SNAPSHOT</version> <packaging>pom</packaging> 

Then in each POM is reference to parent POM:

<parent>   <artifactId>build.parent</artifactId>   <groupId>company</groupId>   <relativePath>../build.parent/pom.xml</relativePath>   <version>1.1.2-SNAPSHOT</version> </parent>  <modelVersion>4.0.0</modelVersion> <groupId>company</groupId> <artifactId>artifact</artifactId> <version>1.1.2-SNAPSHOT</version> <packaging>eclipse-plugin</packaging> 

Answer 1

If you have a parent project you can set the version in the parent pom and in the children you can reference sibling libs with the ${project.version} or ${version} properties.

If you want to avoid to repeat the version of the parent in each children: you can do this:

<modelVersion>4.0.0</modelVersion> <groupId>company</groupId> <artifactId>build.parent</artifactId> <version>${my.version}</version> <packaging>pom</packaging>  <properties> <my.version>1.1.2-SNAPSHOT</my.version> </properties> 

And then in your children pom you have to do:

    <parent>       <artifactId>build.parent</artifactId>       <groupId>company</groupId>       <relativePath>../build.parent/pom.xml</relativePath>       <version>${my.version}</version>     </parent>      <modelVersion>4.0.0</modelVersion>     <groupId>company</groupId>     <artifactId>artifact</artifactId>     <packaging>eclipse-plugin</packaging>      <dependencies>         <dependency>             <groupId>company</groupId>            <artifactId>otherartifact</artifactId>               <version>${my.version}</version> or            <version>${project.version}</version>         </dependency>     </dependencies> 

hth