Creating a tar.gz archive with Maven

Question

I have a Maven project, where under src/main directory there is a sub dir called output. this folder needs to be packaged into tar.gz. when using the assembly plugin as follows:

Answer 1

You need to configure the assembly descriptor to not include the base directory and to configure an output directory for the fileSet:

<assembly>
  <id>bundle</id>
  <formats>
    <format>tar.gz</format>
  </formats>
  <includeBaseDirectory>false</includeBaseDirectory>
  <fileSets>
    <fileSet>
      <directory>src/main/output</directory>
      <outputDirectory>output</outputDirectory>
    </fileSet>
  </fileSets>
</assembly>

With the above assembly descriptor, I get the following result (when running on a project reproducing the structure):

$ mvn clean assembly:assembly
...
$ cd target
$ tar zxvf Q3330855-1.0-SNAPSHOT-bundle.tar.gz 
output/
output/hello.txt

See also

• The Assembly Descriptor Format reference

Answer 2

Try setting outputDirectory in the fileSet. That should remove the src/main/output directories.

<fileSet>
  <directory>src/main/output</directory>
  <outputDirectory>.</outputDirectory>
</fileSet>

You may also need to set includeBaseDirectory to false. That would remove the name directory.

<assembly>
  <id>bundle</id> 
  <includeBaseDirectory>false</includeBaseDirectory>
  <!-- ... -->