Inside of webkitpy/common/checkout/scm/ The Git class (git.py) inherits from SCM class (scm.py) _and_ SVNRepository class (svn.py). This can be misleading since many of the implemented functions on git.py are really implementations for a git-svn repository. Examples of this include: - git.svn_url() - git.svn_commit_log() - git.svn_blame() - git.svn_revision() And a heavily misleading one: - git.push_local_commits_to_server() => Uses git svn dcommit It seems that this Git class is really an abstraction around git-svn commands and should be refactored accordingly. This bug may also involve changing the abstract functions declared on scm.py. (i.e scm.svn_revision() is not an appropriate abstraction of an scm. Instead, something like svn.latest_revision() may be more appropriate. It would, then, be up to sublcasses git.py / svn.py to implement acoordingly.) This bug was inspired after I wanted to use the Git class to fetch the latest SHA/Hash and found it didn't exist under git.py. The closest thing was git.svn_revision() which seemed out of place.