On 01/03/2014 03:30 PM, Doug Hellmann wrote:
On Fri, Jan 3, 2014 at 3:13 PM, Sean Dague <s...@dague.net <mailto:s...@dague.net>> wrote: On 01/03/2014 02:44 PM, Doug Hellmann wrote: On Fri, Jan 3, 2014 at 12:45 PM, Joshua Harlow <harlo...@yahoo-inc.com <mailto:harlo...@yahoo-inc.com> <mailto:harlo...@yahoo-inc.com <mailto:harlo...@yahoo-inc.com>__>> wrote: Ok, I think I'm fine with that (although not really sure what that entails). What does the living under the 'oslo program' change? Does that entail getting sucked into the incubator (which seems to be what your graduating link is about). I don't think its a good idea for taskflow to be in the 'incubator'. Taskflow is meant to be just like any other 3rd party library. No, as we discussed in Hong Kong, there's no reason to add taskflow to the incubator. Whether or not it needs to be part of the oslo program (or any other program) is a separate question. I'm not opposed to bringing it in, but didn't see the point when it came up at the summit. I understand that moving taskflow into oslo would avoid the policy decision we have in place to not do symmetric gating on unreleased versions of things not "owned" by the OpenStack project. However, I don't know if we want to be testing against the git head of libraries no matter where they live. As fungi pointed out on IRC, gating against pre-release versions of libraries may allow us to reach a state where the software works when installed from git, but not from the released packages. It seems safer to gate changes to libraries against the apps' trunk (to avoid making backwards-incompatible changes), and then gate changes to the apps against the released libraries (to ensure they work with something available to be packaged by the distros). There are lots and lots of version numbers available to us, so I see no problem with releasing new versions of libraries frequently. Am I missing something that makes that not work? Requirements wedging. Because of entry points any library that specifies any dependencies that OpenStack components specify, at incompatible levels, means that library effectively puts a hold on the rest of OpenStack and prevents it from being able to move forward. I have considered changing stevedore so it uses entry points to find plugins, but then handles the import itself specifically to eliminate the requirements checks for plugin dependencies enforced by pkg_resources. So far I haven't convinced myself that it's a good idea, but I'm open to discussion. :-)
Well, about 1/3 of our requirements wedges are actually completely entry point related. They were a class of problems we never had before we switched to entry points.
This entire taskflow block wouldn't have been a problem if it wasn't loaded with entry points.
-Sean -- Sean Dague Samsung Research America s...@dague.net / sean.da...@samsung.com http://dague.net _______________________________________________ OpenStack-dev mailing list OpenStackfirstname.lastname@example.org http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev