52 def modified_files(root, tracked_only=False, commit=None):  argument
67     if commit:
68         return _modified_files_with_commit(root, commit)
89 def _modified_files_with_commit(root, commit):  argument
93          commit]).decode('utf-8').split(os.linesep)
106 def modified_lines(filename, extra_data, commit=None):  argument
123     if commit is None:
124         commit = '0' * 40
125     commit = commit.encode('utf-8')
129         ['git', 'blame', commit, '--porcelain', '--', filename]).split(
133         commit + br' (?P<line>\d+) (\d+)',