Add ability to generate .spec files from local PKG-INFO file

[huakim]

No description provided.

[danigm]

Looks mostly okay. I've just left some suggestions

[danigm]

This change is just a movement of code and adds the lines 382 and 383. I think it's not needed, just keep it as it is.

[huakim]

Sometimes we place our generated source files archive under different file paths, provided by --source-glob parameter. it would be nice to take this into account in our code, and set source_url as the basename of our generated source files archive

[danigm]

Why do you use this new function replace_string instead of just keeping the python format for this simple replacement?

Suggested change

	source_glob = '%{name}-%{version}.*'
	data_name = data['name'] or name
	tarball_file = []
	for __name in (name, name.translate(tr), data_name, data_name.translate(tr)):
	tarball_file.extend(glob.glob(replace_string(source_glob, {'name': __name, 'version': version})))
	if tarball_file:
	break
	source_glob = '{name}-{version}.*'
	data_name = data['name'] or name
	tarball_file = []
	for n in (name, name.translate(tr), data_name, data_name.translate(tr)):
	tarball_file.extend(glob.glob(source_glob.format(name=n, version=version)))
	if tarball_file:
	break

[huakim]

Because Python's 'format' method for replacement explicitly replaces all elements with {name}, but sometimes we need to leave {name} unchanged, also Python's 'format' method does look for neither % symbol, nor %% symbol.

[danigm]

I don't get why it's required to be able to look for {name} or something like that in the glob search for filenames, but if that is your user case, it's okay, not a big deal.

[danigm]

LGTM

[danigm]

I've done the merge manually to squash all the commits in one. 2af7c24