- update to 0.20.5:
* Print a clearer exception when setup.py is executed on Python < 3.5.
* Send an empty pack to clients if they requested objects, even if they
already have those objects. Thanks to Martijn Pieters for
the detailed bug report.
* porcelain.pull: Don't ask for objects that we already have.
* Add LCA implementation. (Kevin Hendricks)
* Add functionality for finding the merge base. (Kevin Hendricks)
* Check for diverged branches during push.
* Check for fast-forward during pull. (Jelmer Vernooij, #666)
* Return a SendPackResult object from
GitClient.send_pack(). (Jelmer Vernooij)
* ``GitClient.send_pack`` now sets the ``ref_status`` attribute
on its return value to a dictionary mapping ref names
to error messages. Previously, it raised UpdateRefsError
if any of the refs failed to update.
(Jelmer Vernooij, #780)
* Add a ``porcelain.Error`` object that most errors in porcelain
derive from. (Jelmer Vernooij)
* Fix argument parsing in dulwich command-line app.
(Jelmer Vernooij, #784)
* Add support for remembering remote refs after push/pull.
(Jelmer Vernooij, #752)
* Support passing tree and output encoding to
dulwich.patch.unified_diff. (Jelmer Vernooij, #763)
* Fix pushing of new refs over HTTP(S) when there are
no new objects to be sent.
(Jelmer Vernooij, #739)
* Raise new error HTTPUnauthorized when the server sends
back a 401. The client can then retry with credentials.