dulwich/NEWS

0.9.5	UNRELEASED

 CHANGES

 * Drop support for Python 2.4 and 2.5. (Jelmer Vernooij)

0.9.4	2013-11-30

 IMPROVEMENTS

 * Add ssh_kwargs attribute to ParamikoSSHVendor. (milki)

 * Add Repo.set_description(). (Víðir Valberg Guðmundsson)

 * Add a basic `dulwich.porcelain` module. (Jelmer Vernooij, Marcin Kuzminski)

 * Various performance improvements for object access.
   (Jelmer Vernooij)

 * New function `get_transport_and_path_from_url`,
   similar to `get_transport_and_path` but only
   supports URLs.
   (Jelmer Vernooij)

 * Add support for file:// URLs in `get_transport_and_path_from_url`.
   (Jelmer Vernooij)

 * Add LocalGitClient implementation.
   (Jelmer Vernooij)

 BUG FIXES

  * Support filesystems with 64bit inode and device numbers.
    (André Roth)

 CHANGES

  * Ref handling has been moved to dulwich.refs.
    (Jelmer Vernooij)

 API CHANGES

  * Remove long deprecated RefsContainer.set_ref().
    (Jelmer Vernooij)

  * Repo.ref() is now deprecated in favour of Repo.refs[].
    (Jelmer Vernooij)

FEATURES

  * Add support for graftpoints. (milki)

0.9.3	2013-09-27

 BUG FIXES

  * Fix path for stdint.h in MANIFEST.in. (Jelmer Vernooij)

0.9.2	2013-09-26

 BUG FIXES

  * Include stdint.h in MANIFEST.in (Mark Mikofski)

0.9.1	2013-09-22

 BUG FIXES

  * Support lookups of 40-character refs in BaseRepo.__getitem__. (Chow Loong Jin, Jelmer Vernooij)

  * Fix fetching packs with side-band-64k capability disabled. (David Keijser, Jelmer Vernooij)

  * Several fixes in send-pack protocol behaviour - handling of empty pack files and deletes.
    (milki, #1063087)

  * Fix capability negotiation when fetching packs over HTTP.
    (#1072461, William Grant)

  * Enforce determine_wants returning an empty list rather than None. (Fabien Boucher, Jelmer Vernooij)

  * In the server, support pushes just removing refs. (Fabien Boucher, Jelmer Vernooij)

 IMPROVEMENTS

  * Support passing a single revision to BaseRepo.get_walker() rather than a list of revisions. 
    (Alberto Ruiz)

  * Add `Repo.get_description` method. (Jelmer Vernooij)

  * Support thin packs in Pack.iterobjects() and Pack.get_raw().
    (William Grant)

  * Add `MemoryObjectStore.add_pack` and `MemoryObjectStore.add_thin_pack` methods.
    (David Bennett)

  * Add paramiko-based SSH vendor. (Aaron O'Mullan)

  * Support running 'dulwich.server' and 'dulwich.web' using 'python -m'.
    (Jelmer Vernooij)

  * Add ObjectStore.close(). (Jelmer Vernooij)

  * Raise appropriate NotImplementedError when encountering dumb HTTP servers.
    (Jelmer Vernooij)

 API CHANGES

  * SSHVendor.connect_ssh has been renamed to SSHVendor.run_command.
    (Jelmer Vernooij)

  * ObjectStore.add_pack() now returns a 3-tuple. The last element will be an
    abort() method that can be used to cancel the pack operation.
    (Jelmer Vernooij)

0.9.0	2013-05-31

 BUG FIXES

  * Push efficiency - report missing objects only. (#562676, Artem Tikhomirov)

  * Use indentation consistent with C Git in config files.
    (#1031356, Curt Moore, Jelmer Vernooij)

  * Recognize and skip binary files in diff function.
    (Takeshi Kanemoto)

  * Fix handling of relative paths in dulwich.client.get_transport_and_path.
    (Brian Visel, #1169368)

  * Preserve ordering of entries in configuration.
    (Benjamin Pollack)

  * Support ~ expansion in SSH client paths. (milki, #1083439)

  * Support relative paths in alternate paths.
    (milki, Michel Lespinasse, #1175007)

  * Log all error messages from wsgiref server to the logging module. This
    makes the test suit quiet again. (Gary van der Merwe)

  * Support passing None for empty tree in changes_from_tree.
    (Kevin Watters)

  * Support fetching empty repository in client. (milki, #1060462)

 IMPROVEMENTS:

  * Add optional honor_filemode flag to build_index_from_tree.
    (Mark Mikofski)

  * Support core/filemode setting when building trees. (Jelmer Vernooij)

  * Add chapter on tags in tutorial. (Ryan Faulkner)

 FEATURES

  * Add support for mergetags. (milki, #963525)

  * Add support for posix shell hooks. (milki)

0.8.7	2012-11-27

 BUG FIXES

  * Fix use of alternates in ``DiskObjectStore``.{__contains__,__iter__}.
    (Dmitriy)

  * Fix compatibility with Python 2.4. (David Carr)

0.8.6	2012-11-09

 API CHANGES

  * dulwich.__init__ no longer imports client, protocol, repo and
    server modules. (Jelmer Vernooij)

 FEATURES

  * ConfigDict now behaves more like a dictionary.
    (Adam 'Cezar' Jenkins, issue #58)

  * HTTPGitApplication now takes an optional
    `fallback_app` argument. (Jonas Haag, issue #67)

  * Support for large pack index files. (Jameson Nash)

 TESTING

  * Make index entry tests a little bit less strict, to cope with
    slightly different behaviour on various platforms.
    (Jelmer Vernooij)

  * ``setup.py test`` (available when setuptools is installed) now
    runs all tests, not just the basic unit tests.
    (Jelmer Vernooij)

 BUG FIXES

  * Commit._deserialize now actually deserializes the current state rather than
    the previous one. (Yifan Zhang, issue #59)

  * Handle None elements in lists of TreeChange objects. (Alex Holmes)

  * Support cloning repositories without HEAD set.
    (D-Key, Jelmer Vernooij, issue #69)

  * Support ``MemoryRepo.get_config``. (Jelmer Vernooij)

  * In ``get_transport_and_path``, pass extra keyword arguments on to
    HttpGitClient. (Jelmer Vernooij)

0.8.5	2012-03-29

 BUG FIXES

  * Avoid use of 'with' in dulwich.index. (Jelmer Vernooij)

  * Be a little bit strict about OS behaviour in index tests.
    Should fix the tests on Debian GNU/kFreeBSD. (Jelmer Vernooij)

0.8.4	2012-03-28

 BUG FIXES

  * Options on the same line as sections in config files are now supported.
    (Jelmer Vernooij, #920553)

  * Only negotiate capabilities that are also supported by the server.
    (Rod Cloutier, Risto Kankkunen)

  * Fix parsing of invalid timezone offsets with two minus signs.
    (Jason R. Coombs, #697828)

  * Reset environment variables during tests, to avoid
    test isolation leaks reading ~/.gitconfig. (Risto Kankkunen)

 TESTS

  * $HOME is now explicitly specified for tests that use it to read
    ``~/.gitconfig``, to prevent test isolation issues.
    (Jelmer Vernooij, #920330)

 FEATURES

  * Additional arguments to get_transport_and_path are now passed
    on to the constructor of the transport. (Sam Vilain)

  * The WSGI server now transparently handles when a git client submits data
    using Content-Encoding: gzip.
    (David Blewett, Jelmer Vernooij)

  * Add dulwich.index.build_index_from_tree(). (milki)

0.8.3	2012-01-21

 FEATURES

  * The config parser now supports the git-config file format as
    described in git-config(1) and can write git config files.
    (Jelmer Vernooij, #531092, #768687)

  * ``Repo.do_commit`` will now use the user identity from
    .git/config or ~/.gitconfig if none was explicitly specified.
    (Jelmer Vernooij)

 BUG FIXES

  * Allow ``determine_wants`` methods to include the zero sha in their
    return value. (Jelmer Vernooij)

0.8.2	2011-12-18

 BUG FIXES

  * Cope with different zlib buffer sizes in sha1 file parser.
    (Jelmer Vernooij)

  * Fix get_transport_and_path for HTTP/HTTPS URLs.
    (Bruno Renié)

  * Avoid calling free_objects() on NULL in error cases. (Chris Eberle)

  * Fix use --bare argument to 'dulwich init'. (Chris Eberle)

  * Properly abort connections when the determine_wants function
    raises an exception. (Jelmer Vernooij, #856769)

  * Tweak xcodebuild hack to deal with more error output.
    (Jelmer Vernooij, #903840)

 FEATURES

  * Add support for retrieving tarballs from remote servers.
    (Jelmer Vernooij, #379087)

  * New method ``update_server_info`` which generates data
    for dumb server access. (Jelmer Vernooij, #731235)

0.8.1	2011-10-31

 FEATURES

  * Repo.do_commit has a new argument 'ref'.

  * Repo.do_commit has a new argument 'merge_heads'. (Jelmer Vernooij)

  * New ``Repo.get_walker`` method. (Jelmer Vernooij)

  * New ``Repo.clone`` method. (Jelmer Vernooij, #725369)

  * ``GitClient.send_pack`` now supports the 'side-band-64k' capability.
    (Jelmer Vernooij)

  * ``HttpGitClient`` which supports the smart server protocol over
    HTTP. "dumb" access is not yet supported. (Jelmer Vernooij, #373688)

  * Add basic support for alternates. (Jelmer Vernooij, #810429)

 CHANGES

  * unittest2 or python >= 2.7 is now required for the testsuite.
    testtools is no longer supported. (Jelmer Vernooij, #830713)

 BUG FIXES

  * Fix compilation with older versions of MSVC.  (Martin gz)

  * Special case 'refs/stash' as a valid ref. (Jelmer Vernooij, #695577)

  * Smart protocol clients can now change refs even if they are
    not uploading new data. (Jelmer Vernooij, #855993)

 * Don't compile C extensions when running in pypy.
   (Ronny Pfannschmidt, #881546)

 * Use different name for strnlen replacement function to avoid clashing
   with system strnlen. (Jelmer Vernooij, #880362)

 API CHANGES

  * ``Repo.revision_history`` is now deprecated in favor of ``Repo.get_walker``.
    (Jelmer Vernooij)

0.8.0	2011-08-07

 FEATURES

  * New DeltaChainIterator abstract class for quickly iterating all objects in
    a pack, with implementations for pack indexing and inflation.
    (Dave Borowitz)

  * New walk module with a Walker class for customizable commit walking.
    (Dave Borowitz)

  * New tree_changes_for_merge function in diff_tree. (Dave Borowitz)

  * Easy rename detection in RenameDetector even without find_copies_harder.
    (Dave Borowitz)

 BUG FIXES

  * Avoid storing all objects in memory when writing pack.
    (Jelmer Vernooij, #813268)

  * Support IPv6 for git:// connections. (Jelmer Vernooij, #801543)

  * Improve performance of Repo.revision_history(). (Timo Schmid, #535118)

  * Fix use of SubprocessWrapper on Windows. (Paulo Madeira, #670035)

  * Fix compilation on newer versions of Mac OS X (Lion and up). (Ryan McKern, #794543)

  * Prevent raising ValueError for correct refs in RefContainer.__delitem__.

  * Correctly return a tuple from MemoryObjectStore.get_raw. (Dave Borowitz)

  * Fix a bug in reading the pack checksum when there are fewer than 20 bytes
    left in the buffer. (Dave Borowitz)

  * Support ~ in git:// URL paths. (Jelmer Vernooij, #813555)

  * Make ShaFile.__eq__ work when other is not a ShaFile. (Dave Borowitz)

  * ObjectStore.get_graph_walker() now no longer yields the same
    revision more than once. This has a significant improvement for
    performance when wide revision graphs are involved.
    (Jelmer Vernooij, #818168)

  * Teach ReceivePackHandler how to read empty packs. (Dave Borowitz)

  * Don't send a pack with duplicates of the same object. (Dave Borowitz)

  * Teach the server how to serve a clone of an empty repo. (Dave Borowitz)

  * Correctly advertise capabilities during receive-pack. (Dave Borowitz)

  * Fix add/add and add/rename conflicts in tree_changes_for_merge.
    (Dave Borowitz)

  * Use correct MIME types in web server. (Dave Borowitz)

 API CHANGES

  * write_pack no longer takes the num_objects argument and requires an object
    to be passed in that is iterable (rather than an iterator) and that
    provides __len__.  (Jelmer Vernooij)

  * write_pack_data has been renamed to write_pack_objects and no longer takes a
    num_objects argument. (Jelmer Vernooij)

  * take_msb_bytes, read_zlib_chunks, unpack_objects, and
    PackStreamReader.read_objects now take an additional argument indicating a
    crc32 to compute. (Dave Borowitz)

  * PackObjectIterator was removed; its functionality is still exposed by
    PackData.iterobjects. (Dave Borowitz)

  * Add a sha arg to write_pack_object to incrementally compute a SHA.
    (Dave Borowitz)

  * Include offset in PackStreamReader results. (Dave Borowitz)

  * Move PackStreamReader from server to pack. (Dave Borowitz)

  * Extract a check_length_and_checksum, compute_file_sha, and
    pack_object_header pack helper functions. (Dave Borowitz)

  * Extract a compute_file_sha function. (Dave Borowitz)

  * Remove move_in_thin_pack as a separate method; add_thin_pack now completes
    the thin pack and moves it in in one step. Remove ThinPackData as well.
    (Dave Borowitz)

  * Custom buffer size in read_zlib_chunks. (Dave Borowitz)

  * New UnpackedObject data class that replaces ad-hoc tuples in the return
    value of unpack_object and various DeltaChainIterator methods.
    (Dave Borowitz)

  * Add a lookup_path convenience method to Tree. (Dave Borowitz)

  * Optionally create RenameDetectors without passing in tree SHAs.
    (Dave Borowitz)

  * Optionally include unchanged entries in RenameDetectors. (Dave Borowitz)

  * Optionally pass a RenameDetector to tree_changes. (Dave Borowitz)

  * Optionally pass a request object through to server handlers. (Dave Borowitz)

 TEST CHANGES

  * If setuptools is installed, "python setup.py test" will now run the testsuite.
    (Jelmer Vernooij)

  * Add a new build_pack test utility for building packs from a simple spec.
    (Dave Borowitz)

  * Add a new build_commit_graph test utility for building commits from a
    simple spec. (Dave Borowitz)

0.7.1	2011-04-12

 BUG FIXES

  * Fix double decref in _diff_tree.c. (Ted Horst, #715528)

  * Fix the build on Windows. (Pascal Quantin)

  * Fix get_transport_and_path compatibility with pre-2.6.5 versions of Python.
    (Max Bowsher, #707438)

  * BaseObjectStore.determine_wants_all no longer breaks on zero SHAs.
    (Jelmer Vernooij)

  * write_tree_diff() now supports submodules.
    (Jelmer Vernooij)

  * Fix compilation for XCode 4 and older versions of distutils.sysconfig.
    (Daniele Sluijters)

 IMPROVEMENTS

  * Sphinxified documentation. (Lukasz Balcerzak)

  * Add Pack.keep.(Marc Brinkmann)

 API CHANGES

  * The order of the parameters to Tree.add(name, mode, sha) has changed, and
    is now consistent with the rest of Dulwich. Existing code will still
    work but print a DeprecationWarning. (Jelmer Vernooij, #663550)

  * Tree.entries() is now deprecated in favour of Tree.items() and
    Tree.iteritems(). (Jelmer Vernooij)

0.7.0	2011-01-21

 FEATURES

  * New `dulwich.diff_tree` module for simple content-based rename detection.
    (Dave Borowitz)

  * Add Tree.items(). (Jelmer Vernooij)

  * Add eof() and unread_pkt_line() methods to Protocol. (Dave Borowitz)

  * Add write_tree_diff(). (Jelmer Vernooij)

  * Add `serve_command` function for git server commands as executables.
    (Jelmer Vernooij)

  * dulwich.client.get_transport_and_path now supports rsync-style repository URLs.
    (Dave Borowitz, #568493)

 BUG FIXES

  * Correct short-circuiting operation for no-op fetches in the server.
    (Dave Borowitz)

  * Support parsing git mbox patches without a version tail, as generated by
    Mercurial.  (Jelmer Vernooij)

  * Fix dul-receive-pack and dul-upload-pack. (Jelmer Vernooij)

  * Zero-padded file modes in Tree objects no longer trigger an exception but
    the check code warns about them. (Augie Fackler, #581064)

  * Repo.init() now honors the mkdir flag. (#671159)

  * The ref format is now checked when setting a ref rather than when reading it back.
    (Dave Borowitz, #653527)

  * Make sure pack files are closed correctly. (Tay Ray Chuan)

 DOCUMENTATION

  * Run the tutorial inside the test suite. (Jelmer Vernooij)

  * Reorganized and updated the tutorial. (Jelmer Vernooij, Dave Borowitz, #610550,
     #610540)


0.6.2	2010-10-16

 BUG FIXES

  * HTTP server correctly handles empty CONTENT_LENGTH. (Dave Borowitz)

  * Don't error when creating GitFiles with the default mode. (Dave Borowitz)

  * ThinPackData.from_file now works with resolve_ext_ref callback.
    (Dave Borowitz)

  * Provide strnlen() on mingw32 which doesn't have it. (Hans Kolek)

  * Set bare=true in the configuratin for bare repositories. (Dirk Neumann)

 FEATURES

  * Use slots for core objects to save up on memory. (Jelmer Vernooij)

  * Web server supports streaming progress/pack output. (Dave Borowitz)

  * New public function dulwich.pack.write_pack_header. (Dave Borowitz)

  * Distinguish between missing files and read errors in HTTP server.
    (Dave Borowitz)

  * Initial work on support for fastimport using python-fastimport.
    (Jelmer Vernooij)

  * New dulwich.pack.MemoryPackIndex class. (Jelmer Vernooij)

  * Delegate SHA peeling to the object store.  (Dave Borowitz)

 TESTS

  * Use GitFile when modifying packed-refs in tests. (Dave Borowitz)

  * New tests in test_web with better coverage and fewer ad-hoc mocks.
    (Dave Borowitz)

  * Standardize quote delimiters in test_protocol. (Dave Borowitz)

  * Fix use when testtools is installed. (Jelmer Vernooij)

  * Add trivial test for write_pack_header. (Jelmer Vernooij)

  * Refactor some of dulwich.tests.compat.server_utils. (Dave Borowitz)

  * Allow overwriting id property of objects in test utils. (Dave Borowitz)

  * Use real in-memory objects rather than stubs for server tests.
    (Dave Borowitz)

  * Clean up MissingObjectFinder. (Dave Borowitz)

 API CHANGES

  * ObjectStore.iter_tree_contents now walks contents in depth-first, sorted
    order. (Dave Borowitz)

  * ObjectStore.iter_tree_contents can optionally yield tree objects as well.
    (Dave Borowitz).

  * Add side-band-64k support to ReceivePackHandler. (Dave Borowitz)

  * Change server capabilities methods to classmethods. (Dave Borowitz)

  * Tweak server handler injection. (Dave Borowitz)

  * PackIndex1 and PackIndex2 now subclass FilePackIndex, which is 
    itself a subclass of PackIndex. (Jelmer Vernooij)

 DOCUMENTATION

  * Add docstrings for various functions in dulwich.objects. (Jelmer Vernooij)

  * Clean up docstrings in dulwich.protocol. (Dave Borowitz)

  * Explicitly specify allowed protocol commands to
    ProtocolGraphWalker.read_proto_line.  (Dave Borowitz)

  * Add utility functions to DictRefsContainer. (Dave Borowitz)


0.6.1	2010-07-22

 BUG FIXES

  * Fix memory leak in C implementation of sorted_tree_items. (Dave Borowitz)

  * Use correct path separators for named repo files. (Dave Borowitz)

  * python > 2.7 and testtools-based test runners will now also pick up skipped
    tests correctly. (Jelmer Vernooij)

 FEATURES

  * Move named file initilization to BaseRepo. (Dave Borowitz)

  * Add logging utilities and git/HTTP server logging. (Dave Borowitz)

  * The GitClient interface has been cleaned up and instances are now reusable.
    (Augie Fackler)

  * Allow overriding paths to executables in GitSSHClient. 
    (Ross Light, Jelmer Vernooij, #585204)

  * Add PackBasedObjectStore.pack_loose_objects(). (Jelmer Vernooij)

 TESTS

  * Add tests for sorted_tree_items and C implementation. (Dave Borowitz)

  * Add a MemoryRepo that stores everything in memory. (Dave Borowitz)

  * Quiet logging output from web tests. (Dave Borowitz)

  * More flexible version checking for compat tests. (Dave Borowitz)

  * Compat tests for servers with and without side-band-64k. (Dave Borowitz)

 CLEANUP

  * Clean up file headers. (Dave Borowitz)

 TESTS

  * Use GitFile when modifying packed-refs in tests. (Dave Borowitz)

 API CHANGES

  * dulwich.pack.write_pack_index_v{1,2} now take a file-like object
    rather than a filename. (Jelmer Vernooij)

  * Make dul-daemon/dul-web trivial wrappers around server functionality.
    (Dave Borowitz)

  * Move reference WSGI handler to web.py. (Dave Borowitz)

  * Factor out _report_status in ReceivePackHandler. (Dave Borowitz)

  * Factor out a function to convert a line to a pkt-line. (Dave Borowitz)


0.6.0	2010-05-22

note: This list is most likely incomplete for 0.6.0.

 BUG FIXES
 
  * Fix ReceivePackHandler to disallow removing refs without delete-refs.
    (Dave Borowitz)

  * Deal with capabilities required by the client, even if they 
    can not be disabled in the server. (Dave Borowitz)

  * Fix trailing newlines in generated patch files.
    (Jelmer Vernooij)

  * Implement RefsContainer.__contains__. (Jelmer Vernooij)

  * Cope with \r in ref files on Windows. (
    http://github.com/jelmer/dulwich/issues/#issue/13, Jelmer Vernooij)

  * Fix GitFile breakage on Windows. (Anatoly Techtonik, #557585)

  * Support packed ref deletion with no peeled refs. (Augie Fackler)

  * Fix send pack when there is nothing to fetch. (Augie Fackler)

  * Fix fetch if no progress function is specified. (Augie Fackler)

  * Allow double-staging of files that are deleted in the index. 
    (Dave Borowitz)

  * Fix RefsContainer.add_if_new to support dangling symrefs.
    (Dave Borowitz)

  * Non-existant index files in non-bare repositories are now treated as 
    empty. (Dave Borowitz)

  * Always update ShaFile.id when the contents of the object get changed. 
    (Jelmer Vernooij)

  * Various Python2.4-compatibility fixes. (Dave Borowitz)

  * Fix thin pack handling. (Dave Borowitz)
 
 FEATURES

  * Add include-tag capability to server. (Dave Borowitz)

  * New dulwich.fastexport module that can generate fastexport 
    streams. (Jelmer Vernooij)

  * Implemented BaseRepo.__contains__. (Jelmer Vernooij)

  * Add __setitem__ to DictRefsContainer. (Dave Borowitz)

  * Overall improvements checking Git objects. (Dave Borowitz)

  * Packs are now verified while they are received. (Dave Borowitz)

 TESTS

  * Add framework for testing compatibility with C Git. (Dave Borowitz)

  * Add various tests for the use of non-bare repositories. (Dave Borowitz)

  * Cope with diffstat not being available on all platforms. 
    (Tay Ray Chuan, Jelmer Vernooij)

  * Add make_object and make_commit convenience functions to test utils.
    (Dave Borowitz)

 API BREAKAGES

  * The 'committer' and 'message' arguments to Repo.do_commit() have 
    been swapped. 'committer' is now optional. (Jelmer Vernooij)

  * Repo.get_blob, Repo.commit, Repo.tag and Repo.tree are now deprecated.
    (Jelmer Vernooij)

  * RefsContainer.set_ref() was renamed to RefsContainer.set_symbolic_ref(),
    for clarity. (Jelmer Vernooij)

 API CHANGES

  * The primary serialization APIs in dulwich.objects now work 
    with chunks of strings rather than with full-text strings. 
    (Jelmer Vernooij)

0.5.02010-03-03

 BUG FIXES

  * Support custom fields in commits (readonly). (Jelmer Vernooij)

  * Improved ref handling. (Dave Borowitz)

  * Rework server protocol to be smarter and interoperate with cgit client.
    (Dave Borowitz)

  * Add a GitFile class that uses the same locking protocol for writes as 
    cgit. (Dave Borowitz)

  * Cope with forward slashes correctly in the index on Windows.
    (Jelmer Vernooij, #526793)

 FEATURES

  * --pure option to setup.py to allow building/installing without the C 
    extensions. (Hal Wine, Anatoly Techtonik, Jelmer Vernooij, #434326)

  * Implement Repo.get_config(). (Jelmer Vernooij, Augie Fackler)

  * HTTP dumb and smart server. (Dave Borowitz)

  * Add abstract baseclass for Repo that does not require file system 
    operations. (Dave Borowitz)

0.4.1	2010-01-03

 FEATURES

  * Add ObjectStore.iter_tree_contents(). (Jelmer Vernooij)

  * Add Index.changes_from_tree(). (Jelmer Vernooij)

  * Add ObjectStore.tree_changes(). (Jelmer Vernooij)

  * Add functionality for writing patches in dulwich.patch.
    (Jelmer Vernooij)

0.4.0	2009-10-07

 DOCUMENTATION

  * Added tutorial.

 API CHANGES

  * dulwich.object_store.tree_lookup_path will now return the mode and 
    sha of the object found rather than the object itself.

 BUG FIXES

  * Use binascii.hexlify / binascii.unhexlify for better performance.

  * Cope with extra unknown data in index files by ignoring it (for now).

  * Add proper error message when server unexpectedly hangs up. (#415843)

  * Correctly write opcode for equal in create_delta.

0.3.3	2009-07-23

 FEATURES

  * Implement ShaFile.__hash__().

  * Implement Tree.__len__()

 BUG FIXES
  
  * Check for 'objects' and 'refs' directories
    when looking for a Git repository. (#380818)

0.3.2	2009-05-20

 BUG FIXES

  * Support the encoding field in Commits.
  
  * Some Windows compatibility fixes.

  * Fixed several issues in commit support.

 FEATURES

  * Basic support for handling submodules.

0.3.1	2009-05-13

 FEATURES

  * Implemented Repo.__getitem__, Repo.__setitem__ and Repo.__delitem__ to 
    access content.

 API CHANGES

  * Removed Repo.set_ref, Repo.remove_ref, Repo.tags, Repo.get_refs and 
    Repo.heads in favor of Repo.refs, a dictionary-like object for accessing
    refs.

 BUG FIXES

  * Removed import of 'sha' module in objects.py, which was causing 
    deprecation warnings on Python 2.6.

0.3.0	2009-05-10

 FEATURES

  * A new function 'commit_tree' has been added that can commit a tree 
    based on an index.

 BUG FIXES

  * The memory usage when generating indexes has been significantly reduced.
 
  * A memory leak in the C implementation of parse_tree has been fixed.

  * The send-pack smart server command now works. (Thanks Scott Chacon)

  * The handling of short timestamps (less than 10 digits) has been fixed.

  * The handling of timezones has been fixed.

0.2.1	2009-04-30

 BUG FIXES

  * Fix compatibility with Python2.4.

0.2.0	2009-04-30

 FEATURES

  * Support for activity reporting in smart protocol client.

  * Optional C extensions for better performance in a couple of 
    places that are performance-critical.

0.1.1	2009-03-13

 BUG FIXES

  * Fixed regression in Repo.find_missing_objects()

  * Don't fetch ^{} objects from remote hosts, as requesting them 
    causes a hangup.

  * Always write pack to disk completely before calculating checksum.

 FEATURES

  * Allow disabling thin packs when talking to remote hosts.

0.1.0	2009-01-24

 * Initial release.