Need convenience command for removing news fragment files

[jml]

After running build-news as part of the ReleaseProcess and then reviewing and committing the changes, we need to delete the news fragment files (e.g. 2155.bugfix).

Unfortunately, doing this correctly is a bit of a pain. My best guess...

find . -name '*.bugfix' -or -name '*.misc' -or -name '*.feature' -or -name '*.removal' -or -name '*.doc' | xargs svn rm

This should be simpler.

[jml]

NewsBuilder._headings.keys() is a list of the actual file extensions that ought to be deleted.

[thijs]

Should this be a new command (clean-news?) or be part of build-news?

[exarkun]

There doesn't seem to be any reason to make it a separate command. Let's make it part of build-news.

[therve]

(In [36557]) Branching to 'delete-news-fragments-4315'

[therve]

Alright, let's automate stuff some more! Please review.

[tom.prince]

 buildbot run

[tom.prince]

1. The docstring should be updated to indicate that build-news must be run from an svn checkout, and that it deletes the news framgments from svn. 1. Before running 'svn rm', the presence of a svn repo should be checked (this code can be shared with buildAllTarballs. I'm not sure what the appropriate behaviour is, if it isn't. I think it is probably to just delete the files. Thus, if it is run in a bzr or git repository, the commit will automatically pick up the removals.

Please resubmit for review.

[therve]

Thanks for the review. I updated the docstring, and raised an error when it's not a SVN directory. The check is slightly different from the other one so I kept it separated. I don't think we should support other use cases for now.

[tom.prince]

Looks good. Please commit.

[therve]

(In [36726]) Merge delete-news-fragments-4315

Author: therve Reviewer: tom.prince Fixes: #4315

Delete NEWS fragments when building release NEWS files.