New (optional) python egg dependency generator for RPM

[Donald Stufft]

> On Nov 17, 2015, at 9:53 AM, Neal Gompa <ngompa13 at gmail.com> wrote:
> 
> On Tue, Nov 17, 2015 at 9:35 AM, Donald Stufft <donald at stufft.io> wrote:
>> 
>>> On Nov 17, 2015, at 9:26 AM, Neal Gompa <ngompa13 at gmail.com> wrote:
>>> 
>>> The dependency generator uses pkg_resources (specifically
>>> Distribution, FileMetadata, PathMetadata) to read data in the
>>> .egg-info directory. That should still work with .dist-info, right? If
>>> it does, then I can easily support it to read and parse the data. If
>>> there's something else I have to do, please let me know, so I can add
>>> it.
>>> 
>> 
>> That’s correct. There’s a EggInfoMetadata class and a DistInfoMetadata
>> class in pkg_resources.
>> 
> 
> So the code to pull the metadata works like this:
> 
> if lower.endswith('.egg') or \
>    lower.endswith('.egg-info') or \
>    lower.endswith('.egg-link') or \
>    lower.endswith('.dist-info'):
> from pkg_resources import Distribution, FileMetadata, PathMetadata
> dist_name = basename(f)
> if isdir(f):
>    path_item = dirname(f)
>    metadata = PathMetadata(path_item, f)
> else:
>    path_item = f
>    metadata = FileMetadata(f)
> dist = Distribution.from_location(path_item, dist_name, metadata)
> 
> And then for pulling the name for Provides, it uses dist.key and
> Requires is iterating over dist.requires() to get the desired info.
> 
> Do I need to actually check the path and force it to use one
> particular class over the other?
> 


I think you could just do ``pkg_resources.get_distribution(“name”)``?

-----------------
Donald Stufft
PGP: 0x6E3CBCE93372DCFA // 7C6B 7C5D 5E2B 6356 A926 F04F 6E3C BCE9 3372 DCFA

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