Ignore hidden directories by default

[tobiasherp]

I just gave isort a first try and used it in a clean svn working directory. I noticed that changes were applied to Python files below the .svn directory path. In my case, I was able to recover easily by trashing the working copy and check it out again; but for DCMS like git, mercurial etc. a destroyed working copy might be a much worse problem.

IMO, all "hidden" directories (including .git, .hg, .bzr as well) should be skipped by default.
There won't be anything we should directly change, right?

BTW, in this working copy I have a .gitignore file which could have been used to exclude .svn/.
However, this doesn't seem to work unless a .git/ directory is present as well; but this would be another issue.

[timothycrosley]

@tobiasherp Thanks for reporting this issue! .git and .hg were already skipped by default and thanks to your report I’ve added .bzr and .svn. The limitation on .gitignore is one of git itself (which isort uses for the functionality) and not isort itself.

Thanks!

~Timothy