Extension descriptions for easy installation

[rossjones]

It'd be really neat if extensions on github (and elsewhere) contained something similar to node's package.json for easy installation.

I envisage this json file would describe:

• Required config options, with defaults which would be added to the .ini
• Post-installation steps, for those extensions that require DB tables (e.g. paster taxonomy init)
• Names of plugins to be added to the ckan.ini file.
• Versions of CKAN that the extension has been tested against.
• Commands to be run to cleanup the extension, remove tables etc.
• Instructions to CKAN on where migrations are held.
• Links to the repo, documentation etc.

Along with requirements in the setup.py this could make the installation of extensions much more straightforward.

[adamamyl]

I like this idea. It would be useful for deployment/management systems, I think, too.

Bonus points would be if the json file could also be used to generate human-readable documentation.

[waldoj]

👍