Dependency tree with recursive size

[fbeaufume]

New feature, improvement proposal

I often need to get the size of all the jars braught by a given dependency from a project.

I'd like to be able to use mvn dependency:tree for that matter.

The output could be something like:

[INFO] com.mycompany:myapp:jar:1.0.0-SNAPSHOT
[INFO] +- org.foo:foo-all:jar:2.0:compile (200k, total 1.5m)
[INFO] |  +- org.foo:foo-a:jar:2.0:compile (600k)
[INFO] |  +- org.foo:foo-b:jar:2.0:compile (700k)
[INFO] +- org.bar:bar:jar:3.1:compile (300k)

The total size for "foo-all" is 1.5m = 200k + 600k + 700k.

It could require a specific command line parameter (show-size ?), in order to remain retro-compatible.

We could also restrict to selected scopes (for example only compile instead of all scopes) using a dedicated command line parameter.

I think this is not supported yet by neither the dependency plugin nor the project-info-reports plugin.

Can this be achieved? Can you share some implementation pointers?

[cstamas]

I don't find "decorating the tree" too good, as many times there are "needed" informations for one, but not others and other way around.

This is why I did Toolbox, where you operate on artifacts like this:
https://gist.github.com/cstamas/cca2468c414169cc5eed83bb4c764bf9

Or, alternatively, you can directly perform "copy" pipe with defined source and sink:
https://gist.github.com/cstamas/36bd97de7c05458068179b88b52a09bf

[fbeaufume]

Thank you for the feedback. I did not cumulative size information though. Am I missing something ?

I currently went for a pipe command :

• Written in Java and built into a native executable with GraalVM
• Easy to use
• Compatible with dependency trees that were already saved to a file
• But requires a local installation (copy the .exe)

Output extract for Spring PetClinic :