[jira] (MDEP-426) Add `ignoreIfNotExists` to dependency:unpack

["Ondrej Zizka (JIRA)" <ji...@codehaus.org>]

Ondrej Zizka created MDEP-426:
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             Summary: Add `ignoreIfNotExists` to dependency:unpack
                 Key: MDEP-426
                 URL: https://jira.codehaus.org/browse/MDEP-426
             Project: Maven 2.x Dependency Plugin
          Issue Type: New Feature
          Components: unpack
    Affects Versions: 2.8
            Reporter: Ondrej Zizka


The {{dependency:unpack}} goal is often used to manage various files like (test) resources throughout a multimodule project.

For example, to create a working directory, several artifacts may be unpacked into a {{workdir/}}.

To configure this it is convenient to set up the goal in the root module.

This works fine, except two things:

1) The root module itself would fail (as the deps don't exist yet)
2) The modules with the resources depend on themselves, i.e. creating a cyclic dependency.

It would be very convenient if this was handled somehow.

My suggestion to add `ignoreIfNotExists` flag, which would just write an INFO log message and continue in case that the dependency doesn't exist yet.

That way, users wouldn't have to explicitely enable the execution of the {{unpack}} goal for every single direct submodule.

Thanks for considering.

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