Bisect plugin updated
robertc at robertcollins.net
Tue Feb 19 00:22:20 GMT 2008
On Mon, 2008-02-18 at 12:43 -0500, Jeff Licquia wrote:
> Robert Collins wrote:
> > I think it would be good to add some queryable metadata to plugins for
> > building a registry of them. To be able to process this with the plugin
> > uninstalled and missing dependencies is desirable (so that you can index
> > a plugin you /can't/ load (such as one for windows only). So I propose
> > some variables put in setup.py as globals - you can import setup.py and
> > query it. And setup.py is the only thing guaranteed importable :). If
> > someone has a buggy setup.py (e.g. one that forgets to do
> > if __name__ == 'main':
> > setup stuff here
> > Then we can file bugs :).
> I've run with this. Your system should be in bisect now, with some
Cool. I'll do up a patch to bzr to document this.
> > I propose the following variables:
> > The name the plugin expects to be installed under:
> > bzr_plugin_name = 'bisect'
> I've added "bzr_plugin_version", "bzr_minimum_version", and
> "bzr_maximum_version". The plugin version should be self-explanatory;
> minimum and maximum versions refer to the version of bzr the plugin
> supports, for those plugins that want to do this. Either or both can be
Rather than bzr_plugin_version can I suggest 'version_info' - which is
what bzr looks for on an installed plugin already. This is a 5-tuple
e.g. (0, 92, 0, 'dev', 0).
> Comments? In particular, I like the idea of exposing dependencies on
> bzr versions, but am not entirely satisfied with the implementation.
bzr already exposes an api minimum version - a three-tuple (0, 92, 0)
and a current version 5-tuple. I think that plugins should depend on the
api version they need.
E.g. 'I need 1.2 or later' is a needed api of (1, 2, 0). If the
bzr_minimum_api is greater than this, its not compatible. If the bzr
version itself is less than this, its not compatible.
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