check-webkit-style should warn about tabs in any file At least I think this should be check-webkit-style's job. https://bugs.webkit.org/show_bug.cgi?id=33221#c3
I don't see any reason to forbid tabs in regression tests (not to mention make files).
We should use the same rules as the pre-commit hook.
(In reply to comment #1) > I don't see any reason to forbid tabs in regression tests (not to mention make > files). Agreed. fwiw, I purposely got regression tests (directories) omitted when I reviewed the change that checks for TABs.
I think we may have a whitelist for tab checking. For example, we may forbid tabs in LayoutTests/.../script-tests/*.js
the pre-commit hook warns unless you set the svn property "allow-tabs". check-webkit-style should do the same. svn patches from svn-create-patch include properties on new files. For existing files we can teach scm.py how to expose the current properties on a file.