forge install-plugin picketlink
The PicketLink plugin is listed in the Forge plugin repository so installation is trivial.
In Forge type:
forge install-plugin picketlink
That's it! The plugin will be downloaded and installed.
To configure the necessary libraries in your project, use the picketlink setup command:
picketlink setup
This command will prompt which version to use.
We welcome community contributions to the forge plugin. The source code is at https://github.com/forge/plugin-picketlink