Finding the root directory of a multi module maven reactor project

Question

I want to use the maven-dependency-plugin to copy artifacts from all sub-modules of my multi-module project to a directory that is relative to the root directory of the enti

Answer 1

use ${session.executionRootDirectory}

For the record, ${session.executionRootDirectory} works for me in pom files in Maven 3.0.3. That property will be the directory you're running in, so run the parent project and each module can get the path to that root directory.

I put the plugin configuration that uses this property in the parent pom so that it's inherited. I use it in a profile that I only select when I know that I'm going to run Maven on the parent project. This way, it's less likely that I'll use this variable in an undesired way when I run Maven on a child project (because then the variable would not be the path to the parent).

For example,

    org.apache.maven.plugins
    maven-dependency-plugin
    
        
            copy-artifact
            package
            
                copy
            
            
                
                    
                        ${project.groupId}
                        ${project.artifactId}
                        ${project.version}
                        ${project.packaging}
                    
                
                ${session.executionRootDirectory}/target/