~bzr-pqm/bzr/bzr.dev

####################
Bazaar Release Notes
####################

.. toctree::
   :maxdepth: 1

bzr 1.8
#######

:Released: 2008-10-16

Bazaar 1.8 includes several fixes that improve working tree performance,
display of revision logs, and merges.  The bzr testsuite now passes on OS
X and Python 2.6, and almost completely passes on Windows.  The
smartserver code has gained several bug fixes and performance
improvements, and can now run server-side hooks within an http server.

Bug Fixes
*********

* Fix "Must end write group" error when another error occurs during
  ``bzr push``.  (Andrew Bennetts, #230902)

Portability
***********

* Some Pyrex versions require the WIN32 macro defined to compile on
  that platform.  (Alexander Belchenko, Martin Pool, #277481)


bzr 1.8rc1
##########

:Released: 2008-10-07

Changes
*******

* ``bzr log file`` has been changed. It now uses a different method
  for determining which revisions to show as merging the changes to
  the file. It now only shows revisions which merged the change
  towards your mainline. This simplifies the output, makes it faster,
  and reduces memory consumption.  (John Arbash Meinel)

* ``bzr merge`` now defaults to having ``--reprocess`` set, whenever
  ``--show-base`` is not supplied.  (John Arbash Meinel)

* ``bzr+http//`` will now optionally load plugins and write logs on the
  server. (Marius Kruger)

* ``bzrlib._dirstate_helpers_c.pyx`` does not compile correctly with
  Pyrex 0.9.4.1 (it generates C code which causes segfaults). We
  explicitly blacklist that version of the compiler for that
  extension. Packaged versions will include .c files created with
  pyrex >= 0.9.6 so it doesn't effect releases, only users running
  from the source tree. (John Arbash Meinel, #276868)

Features
********

* bzr is now compatible with python-2.6. python-2.6 is not yet officially
  supported (nor released, tests were conducted with the dev version of
  python-2.6rc2), but all known problems have been fixed.  Feedback
  welcome.
  (Vincent Ladeuil, #269535)

Improvements
************

* ``bzr annotate`` will now include uncommitted changes from the local
  working tree by default. Such uncommitted changes are given the
  revision number they would get if a commit was done, followed with a
  ? to indicate that its not actually known. (Robert Collins, #3439)

* ``bzr branch`` now accepts a ``--standalone`` option, which creates a
  standalone branch regardless of the presence of shared repositories.
  (Daniel Watkins)

* ``bzr push`` is faster in the case there are no new revisions to
  push.  It is also faster if there are no tags in the local branch.
  (Andrew Bennetts)

* File changes during a commit will update the tree stat cache.
  (Robert Collins)

* Location aliases can now accept a trailing path.  (Micheal Hudson)

* New hooks ``Lock.hooks`` when LockDirs are acquired and released.
  (Robert Collins, MartinPool)

* Switching in heavyweight checkouts uses the master branch's context, not
  the checkout's context.  (Adrian Wilkins)

* ``status`` on large trees is now faster, due to optimisations in the
  walkdirs code. Of particular note, the walkdirs code now performs
  a temporary ``chdir()`` while reading a single directory; if your
  platform has non thread-local current working directories (and is
  not windows which has its own implementation), this may introduce a
  race condition during concurrent uses of bzrlib. The bzrlib CLI
  will not encounter this as it is single threaded for working tree
  operations. (Robert Collins)

* The C extensions now build on python 2.4 (Robert Collins, #271939)

* The ``-Dhpss`` debug flag now reports the number of smart server
  calls per medium to stderr.  This is in addition to the existing
  detailed logging to the .bzr.log trace file.  (Andrew Bennetts)

Bug Fixes
*********

* Avoid random failures arising from misinterpreted ``errno`` values
  in ``_readdir_pyx.read_dir``.
  (Martin Pool, #279381)

* Branching from a shared repository on a smart server into a new
  repository now preserves the repository format.
  (Andrew Bennetts, #269214)

* ``bzr log`` now accepts a ``--change`` option.
  (Vincent Ladeuil, #248427)

* ``bzr missing`` now accepts an ``--include-merges`` option.
  (Vincent Ladeuil, #233817)

* Don't try to filter (internally) '.bzr' from the files to be deleted if
  it's not there.
  (Vincent Ladeuil, #272648)

* Fix '_in_buffer' AttributeError when using the -Dhpss debug flag.
  (Andrew Bennetts)

* Fix TooManyConcurrentRequests errors caused by a connection failure
  when doing ``bzr pull`` or ``bzr merge`` from a ``bzr+ssh`` URL.
  (Andrew Bennetts, #246233)

* Fixed ``bzr st -r branch:PATH_TO_BRANCH`` where the other branch
  is in a different repository than the current one.
  (Lukáš Lalinský, #144421)

* Make the first line of the manpage preamble a comment again.
  (David Futcher, #242106)

* Remove use of optional parameter in GSSAPI FTP support, since
  it breaks newer versions of Python-Kerberos. (Jelmer Vernooij)

* The autopacking logic will now always create a single new pack from
  all of the content which it deems is worth moving. This avoids the
  'repack a single pack' bug and should result in better packing
  overall.  (John Arbash Meinel, #242510, #172644)

* Trivial documentation fix.
  (John Arbash Meinel, #270471)

* ``bzr switch`` and ``bzr bind`` will now update the branch nickname if
  it was previously set. All checkouts will now refer to the bound branch
  for a nickname if one was not explicitly set.
  (Marius Kruger, #230903)

Documentation
*************

* Explain revision/range identifiers. (Daniel Clemente)

API Changes
***********

* ``CommitBuilder.record_entry_contents`` returns one more element in
  its result tuple - an optional file system hash for the hash cache
  to use. (Robert Collins)

* ``dirstate.DirState.update_entry`` will now only calculate the sha1
  of a file if it is likely to be needed in determining the output
  of iter_changes. (Robert Collins)

* The PackRepository, RepositoryPackCollection, NewPack classes have a
  slightly changed interface to support different index types; as a
  result other users of these classes need to supply the index types
  they want. (Robert Collins)

Testing
*******

* ``bzrlib.tests.repository_implementations`` has been renamed to
  ``bzrlib.tests.per_repository`` so that we have a common structure
  (and it is shorter). (John Arbash Meinel, #239343)

* ``LocalTransport.abspath()`` now returns a drive letter if the
  transport has one, fixing numerous tests on Windows.
  (Mark Hammond)

* PreviewTree is now tested via intertree_implementations.
  (Aaron Bentley)

* The full test suite is passing again on OSX.
  (Guillermo Gonzalez, Vincent Ladeuil)

* The full test suite passes when run with ``-Eallow_debug``.
  (Andrew Bennetts)

Internals
*********

* A new hook, ``Branch.open``, has been added, which is called when
  branch objects are opened. (Robert Collins)

* ``bzrlib.osutils._walkdirs_utf8`` has been refactored into common
  tree walking, and modular directory listing code to aid future
  performance optimisations and refactoring. (Robert Collins)

* ``bzrlib.trace.debug_memory`` can be used to get a quick memory dump
  in the middle of processing. It only reports memory if
  ``/proc/PID/status`` is available. (John Arbash Meinel)

* New method ``RevisionSpec.as_tree`` for representing the revision
  specifier as a revision tree object. (Lukáš Lalinský)

* New race-free method on MutableTree ``get_file_with_stat`` for use
  when generating stat cache results. (Robert Collins)

* New win32utils.get_local_appdata_location() provides access to a local
  directory for storing data.  (Mark Hammond)

* To be compatible with python-2.6 a few new rules should be
  observed. 'message' attribute can't be used anymore in exception
  classes, 'sha' and 'md5' modules have been deprecated (use
  osutils.[md5|sha]), object__init__ and object.__new__ don't accept
  parameters anymore.
  (Vincent Ladeuil)


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