Add plugins via a command

It would be ideal, in many scenarios, to be able to add a plugin to the build via a command.

E.g. automated tooling sometimes has customization hooks that need to be added to a build. Currently, these can use the apply -cp <classpath> <command class> mechanism to modify a build and add their hooks, but this leads to some less-than-ideal issues, e.g. classpath detection and cross-publishing.

Ideally, tools/users should be able to experiment with a plugin via a command like:

> apply-plugin "com.typesafe.sbt" % "sbt-pgp" % "1.5"

and have this automatically reload the build with the plugin enabled.

reference: http://stackoverflow.com/questions/25137042/how-do-i-add-a-sbt-plugin-in-to-an-sbt-session-ie-without-saving?noredirect=1#comment39130312_25137042

[jastice]

No I didn’t know @laughedelic ! I will try this out.

[laughedelic]

I guess everybody here is already aware of it, but just for the record, the @Duhemm’s load-plugin project achieves somewhat similar to the original apply-plugin proposal and I think it fits exactly @jastice’s requirements:

What I would need is a way to make a plugin sticky for the lifetime of the sbt process, but not have any effects to other instances of sbt started during or after the process runs.