~bzr-pqm/bzr/bzr.dev

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

.. toctree::
   :maxdepth: 1

bzr 2.5b1
#########

:2.5b1: NOT RELEASED YET

External Compatibility Breaks
*****************************

.. These may require users to change the way they use Bazaar.

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

.. New commands, options, etc that users may wish to try out.

* A ``from_unicode`` parameter can be specified when registering a config
  option. This implements boolean and integer config options when the
  provided ``bool_from_store`` and ``int_from_store`` are used.
  (Vincent Ladeuil)

* A ``from_unicode`` parameter can be specified when registering a config
  option. This implements boolean, integer and list config options when the
  provided ``bool_from_store``, ``int_from_store`` and ``list_from_store``
  are used for this parameter.  (Vincent Ladeuil)

* Accessing a packaging branch on Launchpad (eg, ``lp:ubuntu/bzr``) now
  checks to see if the most recent published source package version for
  that project is present in the branch tags. This should help developers
  trust whether the packaging branch is up-to-date and can be used for new
  changes. The level of verbosity is controlled by the config item
  ``launchpad.packaging_verbosity``. It can be set to one of

  off
    disable all checks


  minimal
    only display if the branch is out-of-date

  short
    also display single-line up-to-date and missing,


  all
    (default) display multi-line content for all states


  (John Arbash Meinel, #609187, #812928)

* Add a config option gpg_signing_key for setting which GPG key should
  be used to sign commits. Also default to using the gpg user identity
  which matches user_email() as set by whoami. (Jonathan Riddell,
  #68501)

* An ``invalid`` parameter can be specified when registering a config option
  to decide what should be done when invalid values are
  encountered. 'warning' and 'eeror' will respectively emit a warning and
  ignore the value or errors out. (Vincent Ladeuil)

* ``bzr help configuration/<option>`` display the help for ``option`` for
  all registered configuration options. (Vincent Ladeuil, #747050)

* bzr log -m now matches message, author, committer and bugs instead
  of just matching the message.  --message keeps its original meaning,
  while --match-message, --match-author, --match-committer and
  --match-bugs match each of those fields.

* ``config.Option`` can now declare ``default_from_env``, a list of
  environment variables to get a default value from. (Vincent Ladeuil)

* New builtin ``bzr branches`` command, which lists all colocated branches
  in a directory. (Jelmer Vernooij, #826820)

* Relative local paths can now be specified in URL syntax by using the
  "file:" prefix.  (Jelmer Vernooij)

* Report commits signed with expired keys in "verify-signatures".
  (Jonathan Riddell, #804254)

* bzr add now skips large files in recursive mode. The default "large"
  size is 20MB, and is configurable via the add.maximum_file_size
  option. A value of 0 disables skipping. Named items passed to add are
  never skipped. (Shannon Weyrick, #54624)

* bzr now ships with translations for command help.  (Jonathan
  Riddell, INADA Naoki, #83941)

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

.. Improvements to existing commands, especially improved performance 
   or memory usage, or better results.

* ``bzr add`` will now warn about nested subtrees that are skipped.
  (Jelmer Vernooij, #187342)

* ``bzr commit -m ''`` can now be used to force an empty commit message.
  Entering an empty commit message in the message editor still triggers
  an error. (Jelmer Vernooij)

* ``bzr pull`` will now mention how many tags it has updated.
  (Jelmer Vernooij, #164450)

* ``bzr tag`` no longer errors if a tag already exists but refers to the
  same revision. (Jelmer Vernooij)

* ``bzr uncommit`` will now remove tags that refer to removed revisions.
  The ``--keep-tags`` option can be used to prevent this behaviour.
  (Jelmer Vernooij, #605814)

* Locations printed by ``bzr upgrade`` are now formatted before display.
  (Jelmer Vernooij)

* Install translation .mo files. (Jonathan Riddell)

* Do not run i18n initialisation twice. (Jonathan Riddell)

* Support a ``bugtracker`` option which is used by ``bzr commit --fixes``
  if no bug tracker was specified on the command line.
  (Jelmer Vernooij, #334860)

Bug Fixes
*********

.. Fixes for situations where bzr would previously crash or give incorrect
   or undesirable results.

* The pull command will now always use separate connections for the
  case where the destination is a heavyweight checkout of some remote
  branch on the same host as the source branch.
  (Martin von Gagern, #483661)

* A call to CHKInventory's filter-method will not result in a
  DuplicateFileId error, if you move a subfolder and change a file in
  that subfolder.
  (Bastian Bowe, #809901)

* Branching from a stacked branch no longer does a ``get_parent_map``
  request for each revisions that is in the stacked-on repository while
  determining what revisions need to be fetched. This mostly impacts
  branching initialy into an empty shared repository when the source is
  not the development focus.  (John Arbash Meinel, #388269)

* Decode ``BZR_HOME`` with fs encoding on posix platforms to avoid unicode
  errors.  (Vincent Ladeuil, #822571)

* Fix fallout from URL handling changes in 2.5 that caused an IndexError to be
  raised whenever a transport at the drive root was opened on windows.
  (Martin [gz], #841322)

* Rather than an error being raised, a warning is now printed when the
  current user does not have permission to read a configuration file.
  (Jelmer Vernooij, #837324)

* TreeTransformBase.fixup_new_roots no longer forces trees to have a root, so
  operations that use it, like merge, can now create trees without a root.
  (Aaron Bentley)

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

.. Improved or updated documentation.

* Release instructions refreshed. (Vincent Ladeuil)

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

.. Changes that may require updates in plugins or other code that uses
   bzrlib.

* New class ``URL`` in ``bzrlib.utils`` for managing parsed URLs.
  (Jelmer Vernooij)

* New methods ``get_transport_from_path`` and ``get_transport_from_url``
  have been added that only support opening from a path or a URL,
  unlike ``get_transport``. (Jelmer Vernooij)

* New method ``Tree.get_file_verifier`` which allows tree implementations
  to return non-sha1 checksums to verify files.
  (Jelmer Vernooij, #720831)

* New method ``InterTree.file_content_matches`` which checks that
  two files in different trees have the same contents.
  (Jelmer Vernooij)

* New registry ``OptionRegistry`` specialized for configuration options.
  (Vincent Ladeuil)

* Remove ``AtomicFile.closed`` which has been deprecated in bzr 0.10.
  (Vincent Ladeuil)

* Remove ``commands._builtin_commands``, ``commands.shlex_split_unicode``,
  ``Command._maybe_expand_globs`` and ``Command.run_direct`` deprecated in
  2.10 and 2.2.0. (Vincent Ladeuil)

* Remove ``diff.get_trees_and_branches_to_diff`` deprecated in 2.2.0.

* Remove ``log.calculate_view_revisions``, ``log._filter_revision_range``,
  ``log.get_view_revisions`` which have been deprecated in bzr 2.1.0. Also
  remove ``log.show_one_log`` which was never properly deprecated but wasn't
  used and is easy to inline if needed. (Vincent Ladeuil)

* Remove ``trace.info``, ``trace.error`` and ``trace.show_log_error``
  deprecated in 2.1.0. (Vincent Ladeuil)

* Remove ``TransportListRegistry.set_default_transport``, as the concept of
  a default transport is currently unused. (Jelmer Vernooij)

* Remove ``UIFactory.warn_cross_format_fetch`` and
  ``UIFactory.warn_experimental_format_fetch`` in favor of
  ``UIFactory.show_user_warning``. (Jelmer Vernooij)

* There is a new class `ContentFilterTree` that provides a facade for 
  content filtering.  The `filtered` parameter to `export` is deprecated 
  in favor of passing a filtered tree, and the specific exporter plugins
  no longer support it.
  (Martin Pool)

* New method ``Config.get_user_option_as_int_from_SI`` added for expanding a
  value in SI format (i.e. "20MB", "1GB") into its integer equivalent. 
  (Shannon Weyrick)

* ``Tags.merge_to`` now returns a dictionary with the updated tags
  and a set of conflicts, rather than just conflicts. (Jelmer Vernooij)

* ``Transport`` now has a ``_parsed_url`` attribute instead of
  separate ``_user``, ``_password``, ``_port``, ``_scheme``, ``_host``
  and ``_path`` attributes. Proxies are provided for the moment but
  may be removed in the future. (Jelmer Vernooij)


Internals
*********

.. Major internal changes, unlikely to be visible to users or plugin 
   developers, but interesting for bzr developers.

* A new debug flags ``hpss_client_no_vfs`` will now cause the HPSS client
  to raise a ``HpssVfsRequestNotAllowed`` exception when a VFS request
  is attempted. (Jelmer Vernooij)

* New method ``ControlDir._get_selected_branch`` which returns the
  colocated branch selected using path segment parameters.
  (Jelmer Vernooij, #380871)

Testing
*******

.. Fixes and changes that are only relevant to bzr's test framework and 
   suite.  This can include new facilities for writing tests, fixes to 
   spurious test failures and changes to the way things should be tested.

* Blackbox tests can be debugged interactively (see bzrlib.debug.BzrPdb for
  details). (Vincent Ladeuil)

* `BranchBuilder.build_snapshot` now supports a "flush" action.  This
  cleanly and reliably allows tests using `BranchBuilder` to construct
  branches that e.g. rename files out of a directory and unversion that
  directory in the same revision.  Previously some changes were impossible
  due to the order that `build_snapshot` performs its actions.
  (Andrew Bennetts)

* Don't require ``os.fdatasync`` to be defined on all supported OSes
  (BSD-based OSes don't define it).  (Vincent Ladeuil, #822649)

* Fix compatibility with testtools 0.9.12. (Jelmer Vernooij, #815423)

* ``LockDir`` can now be run when the local hostname is ``localhost``.
  (Jelmer Vernooij, #825994)

* ``ModuleAvailableFeature`` won't try to import already imported modules,
  allowing it to be used for modules with side-effects.
  (Vincent Ladeuil, #712474)

* Output time stamps while running ``make check`` to get better timings from
  pqm.  (Vincent Ladeuil, #837926)

* `TestCaseWithMemoryTransport` is faster now: `_check_safety_net` now
  just compares the bytes in the dirstate file to its pristine state,
  rather than opening the WorkingTree and calling ``last_revision()``.
  This reduces the overall test suite time by about 10% on my laptop.
  (Andrew Bennetts)

* Update `TestCase.knownFailure` to the testtools way of handling expected
  failures to resolve Python 2.7 incompatibility. (Martin [gz], #607400)

..
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