2.0.4 and 2.1.0rc1 have gone gold

John Arbash Meinel john at arbash-meinel.com
Thu Jan 21 22:26:28 GMT 2010


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Once again it is my pleasure to announce that 2.0.4 and 2.1.0rc1 have
gone gold.

This marks a transition for the 2.1 series to become 'stable', so trunk
will be reopened as 2.2 (once I get the chance... :). I've uploaded
official tarballs to their respective milestones. As always, all
downloads are available from:
    https://launchpad.net/bzr/+download

But you can get the specific tarballs from:
  https://launchpad.net/bzr/2.0/2.0.4/+download/bzr-2.0.4.tar.gz
  https://launchpad.net/bzr/2.1/2.1.0rc1/+download/bzr-2.1.0rc1.tar.gz

bzr 2.1.0rc1
############

:Codename: the 'new' stable
:2.1.0rc1: 2009-01-21

This is the first stable release candidate for Bazaar's 2.1 series. From
this point onwards, the 2.1 series will be considered stable (as the 2.0
series) and only bugfixes are expected to be incorporated. The dozen or
so bugfixes in the 2.0.4 release are also included in this release
(along with more than 15 more bugfixes). Some of the interesting
features are support for per-file merge hooks, ``bzr unshelve
- --preview``, support for using ! in ignore files to exclude files from
being ignored, a small memory leak was squashed, and many
``ObjectNotLocked`` errors were fixed.

This looks to be a very good start for a new stable series.


bzr 2.0.4
#########

:Codename: smooth sailing
:2.0.4: 2010-01-21

The fourth bugfix-only release in the 2.0 series contains more than a
dozen bugfixes relative to 2.0.3. The primary focus is on handling
interruptions and concurrent operations more cleanly, there is also a
fair improvement to ``bzr export`` when exporting a remote branch.

John
=:->


The full Changelog follows:

bzr 2.1.0rc1
############

:Codename: the 'new' stable
:2.1.0rc1: 2009-01-21

This is the first stable release candidate for Bazaar's 2.1 series. From
this point onwards, the 2.1 series will be considered stable (as the 2.0
series) and only bugfixes are expected to be incorporated. The dozen or
so bugfixes in the 2.0.4 release are also included in this release
(along with more than 15 more bugfixes). Some of the interesting
features are support for per-file merge hooks, ``bzr unshelve
- --preview``, support for using ! in ignore files to exclude files from
being ignored, a small memory leak was squashed, and many
``ObjectNotLocked`` errors were fixed.

This looks to be a very good start for a new stable series.

New Features
************

* Add bug information to log output when available.
  (Neil Martinsen-Burrell, Guillermo Gonzalez, #251729)

* Added ``merge_file_content`` hook point to ``Merger``, allowing plugins
  to register custom merge logic, e.g. to provide smarter merging for
  particular files.

* Bazaar now includes the ``news_merge`` plugin.  It is disabled by
  default, to enable it add a ``news_merge_files`` option to your
  configuration.  Consult ``bzr help news_merge`` for more information.
  (Andrew Bennetts)

* ``bzr branch`` now takes a ``--bind`` option. This lets you
  branch and bind all in one command. (Ian Clatworthy)

* ``bzr switch`` now takes a ``--revision`` option, to allow switching to
  a specific revision of a branch. (Daniel Watkins, #183559)

* ``bzr unshelve --preview`` can now be used to show how a patch on the
  shelf would be applied to the working tree.
  (Guilherme Salgado, #308122)

* ``bzr update`` now takes a ``--revision`` argument. This lets you
  change the revision of the working tree to any revision in the
  ancestry of the current or master branch. (Matthieu Moy, Mark Hammond,
  Martin Pool, #45719)

* ``-Dbytes`` can now be used to display the total number of bytes
  transferred for the current command. This information is always logged
  to ``.bzr.log`` for later inspection. (John Arbash Meinel)

* New ignore patterns.  Patterns prefixed with '!' are exceptions to
  ignore patterns and take precedence over regular ignores.  Such
  exceptions are used to specify files that should be versioned which
  would otherwise be ignored.  Patterns prefixed with '!!' act as regular
  ignore patterns, but have highest precedence, even over the '!'
  exception patterns. (John Whitley, #428031)

* The ``supress_warnings`` configuration option has been introduced to
disable
  various warnings (it currently only supports the ``format_deprecation``
  warning). The new option can be set in any of the following locations:
  ``bazaar.conf``, ``locations.conf`` and/or ``branch.conf``.
  (Ted Gould, Matthew Fuller, Vincent Ladeuil)

Bug Fixes
*********

* Always show a message if an OS error occurs while trying to run a
  user-specified commit message editor.
  (Martin Pool, #504842)

* ``bzr diff`` will now use the epoch when it is unable to determine
  the timestamp of a file, if the revision it was introduced in is a
  ghost. (Jelmer Vernooij, #295611)

* ``bzr switch -b`` can now create branches that are located using directory
  services such as ``lp:``, even when the branch name doesn't contain a
  '/'.  (Neil Martinsen-Burrell, #495263)

* ``bzr unshelve`` has improved messages about what it is doing.
  (Neil Martinsen-Burrell, #496917)

* Concurrent autopacking is more resilient to already-renamed pack files.
  If we find that a file we are about to obsolete is already obsoleted, we
  do not try to rename it, and we leave the file in ``obsolete_packs``.
  The code is also fault tolerant if a file goes missing, assuming that
  another process already removed the file.
  (John Arbash Meinel, Gareth White, #507557)

* Fix "Too many concurrent requests" in reconcile when network connection
  fails.  (Andrew Bennetts, #503878)

* Fixed a side effect mutation of ``RemoteBzrDirFormat._network_name``
  that caused some tests to fail when run in a non-default order.
  Probably no user impact.  (Martin Pool, #504102)

* Fixed ``ObjectNotLocked`` error in ``bzr cat -rbranch:../foo FILE``.
  (Andrew Bennetts, #506274)

* FTP transports support Unicode paths by encoding/decoding them as utf8.
  (Vincent Ladeuil, #472161)

* Listen to the SIGWINCH signal to update the terminal width.
  (Vincent Ladeuil, #316357)

* Progress bars are now hidden when ``--quiet`` is given.
  (Martin Pool, #320035)

* ``SilentUIFactory`` now supports ``make_output_stream`` and discards
  whatever is written to it.  This un-breaks some plugin tests that
  depended on this behaviour.
  (Martin Pool, #499757)

* When operations update the working tree, all affected files should end
  up with the same mtime. (eg. when versioning a generated file, if you
  update the source and the generated file together, the generated file
  should appear up-to-date.)
  (John Arbash Meinel, Martin <gzlist>, #488724)

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

* Added ``add_cleanup`` and ``cleanup_now`` to ``bzrlib.command.Command``.
  All the builtin commands now use ``add_cleanup`` rather than
  ``try``/``finally`` blocks where applicable as it is simpler and more
  robust.  (Andrew Bennetts)

* All except a small number of storage formats are now hidden, making
  the help for numerous commands far more digestible. (Ian Clatworthy)

* Attempts to open a shared repository as a branch (e.g. ``bzr branch
  path/to/repo``) will now include "location is a repository" as a hint in
  the error message.  (Brian de Alwis, Andrew Bennetts, #440952)

* Push will now inform the user when they are trying to push to a foreign
  VCS for which roundtripping is not supported, and will suggest them to
  use dpush. (Jelmer Vernooij)

* The version of bzr being run is now written to the log file.
  (__monty__, #257170)

* Transport network activity indicator is shown more of the time when
  Bazaar is doing network IO.
  (Martin Pool)

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

* Add documentation on creating merges with more than one parent.
  (Neil Martinsen-Burrell, #481526)

* Better explain the --uncommitted option of merge.
  (Neil Martinsen-Burrell, #505088)

* Improve discussion of pending merges in the documentation for
  ``revert``.  (Neil Martinsen-Burrell, #505093)

* Improved help for ``bzr send``.
  (Martin Pool, Bojan Nikolic)

* There is a System Administrator's Guide in ``doc/en/admin-guide``,
  including discussions of installation, relevant plugins, security and
  backup. (Neil Martinsen-Burrell)

* The ``conflicts`` help topic has been renamed to ``conflict-types``.
  (Ian Clatworthy)

* The User Reference is now presented as a series of topics.
  Many of the included topics have link and format tweaks applied.
  (Ian Clatworthy)

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

* Added ``cachedproperty`` decorator to ``bzrlib.decorators``.
  (Andrew Bennetts)

* Many test features were renamed from ``FooFeature`` to ``foo_feature``
  to be consistent with instances being lower case and classes being
  CamelCase. For the features that were more likely to be used, we added a
  deprecation thunk, but not all. (John Arbash Meinel)

* Merger classes (such as ``Merge3Merger``) now expect a ``this_branch``
  parameter in their constructors, and provide ``this_branch`` as an
  attribute. (Andrew Bennetts)

* The Branch hooks pre_change_branch_tip no longer masks exceptions raised
  by plugins - the original exceptions are now preserved. (Robert Collins)

* The Transport ``Server.tearDown`` method is now renamed to
  ``stop_server`` and ``setUp`` to ``start_server`` for consistency with
  our normal naming pattern, and to avoid confusion with Python's
  ``TestCase.tearDown``.  (Martin Pool)

* ``WorkingTree.update`` implementations must now accept a ``revision``
  parameter.

Internals
*********

* Added ``BzrDir.open_branchV3`` smart server request, which can receive
  a string of details (such as "location is a repository") as part of a
  ``nobranch`` response.  (Andrew Bennetts, #440952)

* New helper osutils.UnicodeOrBytesToBytesWriter which encodes unicode
  objects but passes str objects straight through. This is used for
  selftest but may be useful for diff and other operations that generate
  mixed output. (Robert Collins)

* New exception ``NoRoundtrippingSupport``, for use by foreign branch
  plugins. (Jelmer Vernooij)

Testing
*******

* ``bzrlib.tests.permute_for_extension`` is a helper that simplifies
  running all tests in the current module, once against a pure python
  implementation, and once against an extension (pyrex/C) implementation.
  It can be used to dramatically simplify the implementation of
  ``load_tests``.  (John Arbash Meinel)

* ``bzrlib.tests.TestCase`` now subclasses ``testtools.testcase.TestCase``.
  This permits features in testtools such as getUniqueInteger and
  getUniqueString to be used. Because of this, testtools version 0.9.2 or
  newer is now a dependency to run bzr selftest. Running with versions of
  testtools less than 0.9.2 will cause bzr to error while loading the test
  suite. (Robert Collins)

* Shell-like tests now support the command "mv" for moving files.  The
  syntax for ``mv file1 file2``, ``mv dir1 dir2`` and ``mv file dir`` is
  supported.  (Neil Martinsen-Burrell)

* The test progress bar no longer distinguishes tests that 'errored' from
  tests that 'failed' - they're all just failures.
  (Martin Pool)


bzr 2.0.4
#########

:Codename: smooth sailing
:2.0.4: 2010-01-21

The fourth bugfix-only release in the 2.0 series contains more than a
dozen bugfixes relative to 2.0.3. The primary focus is on handling
interruptions and concurrent operations more cleanly, there is also a fair
improvement to ``bzr export`` when exporting a remote branch.


Bug Fixes
*********

* ``bzr annotate`` on another branch with ``-r branch:...`` no longer
  fails with an ``ObjectNotLocked`` error.  (Andrew Bennetts, #496590)

* ``bzr export dir`` now requests all file content as a record stream,
  rather than requsting the file content one file-at-a-time. This can make
  exporting over the network significantly faster (54min => 9min in one
  case). (John Arbash Meinel, #343218)

* ``bzr serve`` no longer slowly leaks memory. The compiled
  ``bzrlib.bencode.Encoder()`` class was using ``__del__`` to cleanup and
  free resources, and it should have been using ``__dealloc__``.
  This will likely have an impact on any other process that is serving for
  an extended period of time.  (John Arbash Meinel, #494406)

* Check for SIGINT (Ctrl-C) and other signals immediately if ``readdir``
  returns ``EINTR`` by calling ``PyErr_CheckSignals``.  This affected the
  optional ``_readdir_pyx`` extension.  (Andrew Bennetts, #495023)

* Concurrent autopacks will no longer lose a newly created pack file.
  There was a race condition, where if the reload happened at the right
  time, the second packer would forget the name of the newly added pack
  file. (John Arbash Meinel, Gareth White, #507566)

* Give a clearer message if the lockdir disappears after being apparently
  successfully taken.  (Martin Pool, #498378)

* Give a warning when fetching between repositories (local or remote) with
  sufficiently different formats that the content will need to be
  serialized (ie ``InterDifferingSerializer`` or ``inventory-deltas``), so
  the user has a clue that upgrading could make it faster.
  (Martin Pool, #456077)

* If we fail to open ``~/.bzr.log`` write a clear message to stderr rather
  than using ``warning()``. The log file is opened before logging is set
  up, and it leads to very confusing: 'no handlers for "bzr"' messages for
  users, rather than something nicer.
  (John Arbash Meinel, Barry Warsaw, #503886)

* Refuse to build with any Pyrex 0.9.4 release, as they have known bugs.
  (Martin Pool, John Arbash Meinel, #449372)

* ``setup.py bdist_rpm`` now properly finds extra files needed for the
  build. (there is still the distutils bug
  http://bugs.python.org/issue644744) (Joe Julian, #175839)

* The 2a format wasn't properly restarting autopacks when something
  changed underneath it (like another autopack). Now concurrent
  autopackers will properly succeed. (John Arbash Meinel, #495000)

* ``TreeTransform`` can now handle when a delta says that the file id for
  the tree root changes. Rather than trying to rename your working
  directory, or failing early saying that you can't have multiple
  tree roots. This also fixes revert, update, and pull when the root id
  changes.  (John Arbash Meinel, #494269, #504390)

* ``_update_current_block`` no longer suppresses exceptions, so ^C at just
  the right time will get propagated, rather than silently failing to move
  the block pointer. (John Arbash Meinel, Gareth White, #495023)

Testing
*******

* We have a new ``test_source`` that ensures all pyrex ``cdef`` functions
  handle exceptions somehow. (Possibly by setting ``# cannot_raise``
  rather than an ``except ?:`` clause.) This should help prevent bugs like
  bug #495023. (John Arbash Meinel)


bzr 2.1.0b4
###########

:Codename: san francisco airport
:2.1.0b4: 2009-12-14

The fourth beta release in the 2.1 series brings with it a significant
number of bugfixes (~20). The test suite is once again (finally) "green"
on Windows, and should remain that way for future releases. There are a
few performance related updates (faster upgrade and log), and several UI
tweaks. There has also been a significant number of tweaks to the runtime
documentation. 2.1.0b4 include everything from the 2.0.3 release.


Compatibility Breaks
********************

* The BZR_SSH environmental variable may now be set to the path of a secure
  shell client. If currently set to the value ``ssh`` it will now guess the
  vendor of the program with that name, to restore the old behaviour that
  indicated the SSH Corporation client use ``sshcorp`` instead as the magic
  string. (Martin <gzlist at googlemail.com>, #176292)

New Features
************

* ``bzr commit`` now has a ``--commit-time`` option.
  (Alexander Sack, #459276)

* ``-Dhpss`` now increases logging done when run on the bzr server,
  similarly to how it works on the client. (John Arbash Meinel)

* New option ``bzr unshelve --keep`` applies the changes and leaves them
  on the shelf.  (Martin Pool, Oscar Fuentes, #492091)

* The ``BZR_COLUMNS`` envrionment variable can be set to force bzr to
  respect a given terminal width. This can be useful when output is
  redirected or in obscure cases where the default value is not
  appropriate. Pagers can use it to get a better control of the line
  lengths.
  (Vincent Ladeuil)

* The new command ``bzr lp-mirror`` will request that Launchpad update its
  mirror of a local branch. This command will only function if launchpadlib
  is installed.
  (Jonathan Lange)


Bug Fixes
*********

* After renaming a file, the dirstate could accidentally reference
  ``source\\path`` rather than ``source/path`` on Windows. This might be a
  source of some dirstate-related failures. (John Arbash Meinel)

* ``bzr commit`` now detects commit messages that looks like file names
  and issues a warning.
  (Gioele Barabucci, #73073)

* ``bzr ignore /`` no longer causes an IndexError. (Gorder Tyler, #456036)

* ``bzr log -n0 -rN`` should not return revisions beyond its merged
revisions.
  (#325618, #484109, Marius Kruger)

* ``bzr merge --weave`` and ``--lca`` will now create ``.BASE`` files for
  files with conflicts (similar to ``--merge3``). The contents of the file
  is a synthesis of all bases used for the merge.
  (John Arbash Meinel, #40412)

* ``bzr mv --quiet`` really is quiet now.  (Gordon Tyler, #271790)

* ``bzr serve`` is more clear about the risk of supplying --allow-writes.
  (Robert Collins, #84659)

* ``bzr serve --quiet`` really is quiet now.  (Gordon Tyler, #252834)

* Fix bug with redirected URLs over authenticated HTTP.
  (Glen Mailer, Neil Martinsen-Burrell, Vincent Ladeuil, #395714)

* Interactive merge doesn't leave branch locks behind.  (Aaron Bentley)

* Lots of bugfixes for the test suite on Windows. We should once again
  have a test suite with no failures on Windows. (John Arbash Meinel)

* ``osutils.terminal_width()`` obeys the BZR_COLUMNS environment
  variable but returns None if the terminal is not a tty (when output is
  redirected for example). Also fixes its usage under OSes that doesn't
  provide termios.TIOCGWINSZ. Make sure the corresponding tests runs on
  windows too.
  (Joke de Buhr, Vincent Ladeuil, #353370, #62539)
  (John Arbash Meinel, Vincent Ladeuil, #492561)

* Terminate ssh subprocesses when no references to them remain, fixing
  subprocess and file descriptor leaks.  (Andrew Bennetts, #426662)

* The ``--hardlink`` option of ``bzr branch`` and ``bzr checkout`` now
  works for 2a format trees.  Only files unaffected by content filters
  will be hardlinked.  (Andrew Bennetts, #408193)

* The new glob expansion on Windows would replace all ``\`` characters
  with ``/`` even if it there wasn't a glob to expand, the arg was quoted,
  etc. Now only change slashes if there is something being glob expanded.
  (John Arbash Meinel, #485771)

* Use our faster ``KnownGraph.heads()`` functionality when computing the
  new rich-root heads. This can cut a conversion time in half (mysql from
  13.5h => 6.2h) (John Arbash Meinel, #487632)

* When launching a external diff tool via bzr diff --using, temporary files
  are no longer created, rather, the path to the file in the working tree is
  passed to the external diff tool. This allows the file to be edited if the
  diff tool provides for this. (Gary van der Merwe, #490738)

* The launchpad-open command can now be used from a subdirectory of a
  branch, not just from the root of the branch.
  (Neil Martinsen-Burrell, #489102)


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

* ``bzr log`` is now faster. (Ian Clatworthy)

* ``bzr update`` provides feedback on which branch it is up to date with.
  (Neil Martinsen-Burrell)

* ``bzr upgrade`` from pre-2a to 2a can be significantly faster (4x).
  For details see the xml8 patch and heads() improvements.
  (John Arbash Meinel)

* ``bzrlib.urlutils.local_path_from_url`` now accepts
  'file://localhost/' as well as 'file:///' URLs on POSIX.  (Michael
  Hudson)

* The progress bar now shows only a spinner and per-operation counts,
  not an overall progress bar.  The previous bar was often not correlated
  with real overall operation progress, either because the operations take
  nonlinear time, or because at the start of the operation Bazaar couldn't
  estimate how much work there was to do.  (Martin Pool)

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

* Lots of documentation tweaks for inline help topics and command help
  information.

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

* ``bzrlib.textui`` (vestigial module) removed.  (Martin Pool)

* The Launchpad plugin now has a function ``login`` which will log in to
  Launchpad with launchpadlib, and ``load_branch`` which will return the
  Launchpad Branch object corresponding to a given Bazaar Branch object.
  (Jonathan Lange)

Internals
*********

* New test Feature: ``ModuleAvailableFeature``. It is designed to make it
  easier to handle what tests you want to run based on what modules can be
  imported. (Rather than lots of custom-implemented features that were
  basically copy-and-pasted.) (John Arbash Meinel)

* ``osutils.timer_func()`` can be used to get either ``time.time()`` or
  ``time.clock()`` when you want to do performance timing.
  ``time.time()`` is limited to 15ms resolution on Windows, but
  ``time.clock()`` gives CPU and not wall-clock time on other platforms.
  (John Arbash Meinel)

* Several code paths that were calling ``Transport.get().read()`` have
  been changed to the equalivent ``Transport.get_bytes()``. The main
  difference is that the latter will explicitly call ``file.close()``,
  rather than expecting the garbage collector to handle it. This helps
  with some race conditions on Windows during the test suite and sftp
  tests. (John Arbash Meinel)

Testing
*******

* TestCaseWithMemoryTransport no longer sets $HOME and $BZR_HOME to
  unicode strings. (Michael Hudson, #464174)


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