Build multiple artifacts with different classifiers at once

Question

W want my maven project to produce three artifacts with different classifiers at once. I know that I can produce it with modules etc. This is actually a resources project th

Answer 1

This can be done without profiles if you specify multiple plugin executions and resource filtering.

Create a properties file for each version in ${basedir}/src/main/filters (e.g. prod.properties, dev.properties) holding appropriate values for each environment.

Turn on filtering for your resources:

  
    src/main/resources
    true
  

Now add the resource plugin executions. Note the different filter file and output directory.

  org.apache.maven.plugins
  maven-resources-plugin
  
    
      default-resources
      process-resources
      
        resources
      
      
        ${project.build.outputDirectory}/dev
        
          ${basedir}/src/main/filters/dev.properties
        
      
    
    
      prod
      process-resources
      
        resources
      
      
        ${project.build.outputDirectory}/prod
        
          ${basedir}/src/main/filters/prod.properties
        
      
    
  

Finally, the jar plugin; note classifier and input directory:

  org.apache.maven.plugins
  maven-jar-plugin
  
    
      default-jar
      package
      
        jar
      
      
        dev
        ${project.build.outputDirectory}/dev
      
    
    
      jar-prod
      package
      
        jar
      
      
        prod
        ${project.build.outputDirectory}/prod
      
    
  

Running mvn clean install should produce the properly filtered resources in artifacts with dev and prod classifiers like you want.

In the example, I used execution IDs of default-resources and default-jar for the dev versions. Without this you would also get an unclassified jar artifact when you build.