47     # Add this in case we have a branch with the same name as a directory.
54     """Returns number of commits between HEAD and the tracking branch.
56     This looks back to the tracking branch and works out the number of commits
60         Number of patches that exist on top of the branch
84 def GuessUpstream(git_dir, branch):  argument
85     """Tries to guess the upstream for a branch
87     This lists out top commits on a branch and tries to find a suitable
89     'git name-rev' returns a plain branch name, with no ! or ^ modifiers.
93         branch: Name of branch
97             Name of upstream branch (e.g. 'upstream/master') or None if none
100     pipe = [LogCmd(branch, git_dir=git_dir, oneline=True, count=100)]
104         return None, "Branch '%s' not found" % branch
112     return None, "Cannot find a suitable upstream for branch '%s'" % branch
114 def GetUpstream(git_dir, branch):  argument
115     """Returns the name of the upstream for a branch
119         branch: Name of branch
123             Name of upstream branch (e.g. 'upstream/master') or None if none
128                                        'branch.%s.remote' % branch)
130                                       'branch.%s.merge' % branch)
132         upstream, msg = GuessUpstream(git_dir, branch)
141         raise ValueError("Cannot determine upstream branch for branch "
142                 "'%s' remote='%s', merge='%s'" % (branch, remote, merge))
145 def GetRangeInBranch(git_dir, branch, include_upstream=False):  argument
146     """Returns an expression for the commits in the given branch.
150         branch: Name of branch
152         Expression in the form 'upstream..branch' which can be used to
153         access the commits. If the branch does not exist, returns None.
155     upstream, msg = GetUpstream(git_dir, branch)
158     rstr = '%s%s..%s' % (upstream, '~' if include_upstream else '', branch)
179 def CountCommitsInBranch(git_dir, branch, include_upstream=False):  argument
180     """Returns the number of commits in the given branch.
184         branch: Name of branch
186         Number of patches that exist on top of the branch, or None if the
187         branch does not exist.
189     range_expr, msg = GetRangeInBranch(git_dir, branch, include_upstream)
200         Number of patches that exist on top of the branch
257     """Create a series of patches from the top of the current branch.