update-versions-file without show-picked-version

[jaap3]

buildout.dumppickedversions doesn't print the list of picked versions if an output file is given. I like that behavior but it's not possible with buildout 2.0.

Right now you have to set show-picked-versions = true for update-versions-file to work. (https://github.com/buildout/buildout/blob/master/src/zc/buildout/buildout.py#L999). (b.t.w. This is not documented clearly).

I suggest that if show-picked-versions = false but update-versions-file is set to a filename the file will get updated.

[reinout]

Good point! This is a bug. Shouldn't be too hard to fix.

[reinout]

I've added a pull request #72 fixing this.