At 05:27 PM 3/5/2009 +0000, Fadhley Salim wrote:
In an automated build environment I need to be able to make eggs which
depend on non-released "testing" eggs. These are all published to a
web-server operated by my team.
I know that it's possible to globally change the default URLs of the
"--find-links" easy_install option by editing the distutils.cfg file,
however I want a fully automated process which will validate a system's
configuration and determine if the test-egg URL have been added to the
system. If not, I want my build process to fail with an explicit error
emssage.
Other than by directly inspecting and parsing this file, is there a
programatic way to find which hosts have been configured in the
distutils.cfg file? Ideally I'd like to access this information via
pkg_resources.
It's not available there. You would need to create an easy_install
command instance and inspect its find_links attribute. Something like:
ei = makeSetup().get_command_obj('easy_install')
ei.ensure_finalized()
print ei.find_links
See the 'makeSetup()' function in setuptools/tests/__init__.py for
how to do the equivalent.
(Now, if what you're really asking is, can you tell whether a
specific version of an egg is available on sys.path, you can
certainly do that by checking
pkg_resources.require('projectname')[0].version to see if it's the
version you want.)
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