~bzr-pqm/bzr/bzr.dev

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

.. toctree::
   :maxdepth: 1

bzr 1.14
########
:Codename: brisbane-core
:1.14rc1: 2009-04-06
:1.14rc2: 2009-04-19
:1.14: 2009-04-28
:1.14.1: 2009-05-01

New formats 1.14 and 1.14-rich-root supporting End-Of-Line (EOL) conversions,
keyword templating (via the bzr-keywords plugin) and generic content filtering.
End-of-line conversion is now supported for formats supporting content
filtering.

Changes from 1.14final to 1.14.1
********************************

* Change api_minimum_version back to api_minimum_version = (1, 13, 0)

Changes from 1.14rc2 to 1.14final
*********************************

* Fix a bug in the pure-python ``GroupCompress`` code when handling copies
  longer than 64KiB. (John Arbash Meinel, #364900)

Changes from 1.14rc1 to 1.14rc2
*******************************

* Fix for bug 358037 Revision not in
  bzrlib.groupcompress.GroupCompressVersionedFiles (Brian de Alwis, 
  John A Meinel)

* Fix for bug 354036 ErrorFromSmartServer - AbsentContentFactory object has no
  attribute 'get_bytes_as' exception while pulling from Launchpad 
  (Jean-Francois Roy, Andrew Bennetts, Robert Collins)

* Fix for bug 355280 eol content filters are never loaded and thus never
  applied (Brian de Alwis, Ian Clatworthy)
 
* bzr.dev -r4280  Change _fetch_uses_deltas = False for CHK repos until we can
  write a better fix. (John Arbash Meinel, Robert Collins)

* Fix for bug 361574 uncommit recommends undefined --levels and -n options
  (Marius Kruger, Ian Clatworthy)

* bzr.dev r4289 as cherrypicked at lp:~spiv/bzr/stacking-cherrypick-1.14 
  (Andrew Bennetts, Robert Collins)

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

* A previously disabled code path to accelerate getting configuration
  settings from a smart server has been reinstated. We think this *may*
  cause a incompatibility with servers older than bzr 0.15. We intend
  to issue a point release to address this if it turns out to be a
  problem. (Robert Collins, Andrew Bennetts)

* bzr no longer autodetects nested trees as 'tree-references'.  They
  must now be explicitly added tree references.  At the commandline, use
  join --reference instead of add.  (Aaron Bentley)

* The ``--long`` log format (the default) no longer shows merged
  revisions implicitly, making it consistent with the ``short`` and
  ``line`` log formats.  To see merged revisions for just a given
  revision, use ``bzr log -n0 -rX``. To see every merged revision,
  use ``bzr log -n0``.  (Ian Clatworthy)

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

* New formats ``1.14`` and ``1.14-rich-root`` supporting End-Of-Line
  (EOL) conversions, keyword templating (via the bzr-keywords plugin)
  and generic content filtering. These formats replace the experimental
  ``development-wt5`` and ``development-wt5-rich-root`` formats
  respectively, but have support for filtered views disabled.
  (Ian Clatworthy)

* New ``mv --auto`` option recognizes renames after they occur.
  (Aaron Bentley)

* ``bzr`` can now get passwords from stdin without requiring a controlling
  terminal (i.e. by redirecting stdin). (Vincent Ladeuil)

* ``bzr log`` now supports filtering of multiple files and directories
  and will show changes that touch any of them. Furthermore,
  directory filtering now shows the changes to any children of that
  directory, not just the directory object itself.
  (Ian Clatworthy, #97715)

* ``bzr shelve`` can now apply changes without storing anything on the
  shelf, via the new --destroy option.  (Aaron Bentley)

* ``bzr send`` now accepts --body to specify an initial message body.
  (Aaron bentley)

* ``bzr xxx --usage`` where xxx is a command now shows a usage
  message and the options without the descriptive help sections
  (like Description and Examples). A message is also given
  explaining how to see the complete help, i.e. ``bzr help xxx``.
  (Ian Clatworthy)

* Content filters can now be used to provide custom conversion
  between the canonical format of content (i.e. as stored) and
  the convenience format of content (i.e. as created in working
  trees). See ``bzr help content-filters`` for further details.
  (Ian Clatworthy, Alexander Belchenko)

* End-of-line conversion is now supported for formats supporting
  content filtering. See ``bzr help eol`` for details.
  (Ian Clatworthy)

* Newly-blessed `join` command allows combining two trees into one.
  (Aaron Bentley)

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

* A new format name alias ``default-rich-root`` has been added and
  points at the closest relative of the default format that supports 
  rich roots. (Jelmer Vernooij, #338061)

* Branching from a stacked branch using ``bzr*://`` will now stream
  the data when the target repository does not need topological
  ordering, reducing round trips and network overhead. This uses the
  existing smart server methods added in 1.13, so will work on any
  1.13 or newer server. (Robert Collins, Andrew Bennetts)

* ``bzr cat`` and ``bzr export`` now supports a ``--filters`` option
  that displays/saves the content after content filters are applied.
  (Ian Clatworthy)

* ``bzr ignore`` gives a more informative message when existing
  version controlled files match the ignore pattern. (Neil
  Martinsen-Burrell, #248895)

* ``bzr log`` now has ``--include-merges`` as an alias for ``--levels 0``.
  (Ian Clatworthy)

* ``bzr send`` is faster on repositories with deep histories.
  (Ian Clatworthy)

* IPv6 literals are accepted in URLs.
  (stlman, Martin Pool, Jelmer Vernooij, #165014)

* Progress bars now show the rate of network activity for
  ``bzr+ssh://`` and ``bzr://`` connections.  (Andrew Bennetts)

* Prompt for user names if they are not in the configuration. 
  (Jelmer Vernooij, #256612)

* Pushing to a stacked pack-format branch on a 1.12 or older smart server
  now takes many less round trips.  (Andrew Bennetts, Robert Collins,
  #294479)
  
* Streaming push can be done to older repository formats.  This is
  implemented using a new ``Repository.insert_stream_locked`` RPC.
  (Andrew Bennetts, Robert Collins)

* The "ignoring files outside view: .." message has been re-worded
  to "Ignoring files outside view. View is .." to reduce confusion
  about what was being considered and what was being ignored.
  (Ian Clatworthy)

* The ``long`` log formatter now shows [merge] indicators. If
  only one level of revisions is displayed and merges are found,
  the ``long`` and ``short`` log formatters now tell the user
  how to see the hidden merged revisions.  (Ian Clatworthy)

* The ``brisbane-core`` project has delivered its beta format
  ``development6-rich-root``. This format is suitable for judicious
  testing by early adopters. In particular if you are benchmarking bzr
  performance please be sure to test using this format. At this stage
  more information is best obtained by contacting the Bazaar mailing list
  or IRC channel if you are interested in using this format. We will make
  end user documentation available closer to blessing the format as
  production ready. (Robert Collins, John Arbash Meinel, Ian Clatworthy,
  Vincent Ladeuil, Andrew Bennetts, Martin Pool)

* Tildes are no longer escaped. No more %7Euser/project/branch!
  (Jonathan Lange)

Bug Fixes
*********

* Pushing a new stacked branch will also push the parent inventories for
  revisions at the stacking boundary.  This makes sure that the stacked
  branch has enough data to calculate inventory deltas for all of its
  revisions (without requiring the fallback branch).  This avoids
  "'AbsentContentFactory' object has no attribute 'get_bytes_as'" errors
  when fetching the stacked branch from a 1.13 (or later) smart server.
  This partially fixes #354036.  (Andrew Bennetts, Robert Collins)

* End-Of-Line content filters are now loaded correctly.
  (Ian Clatworthy, Brian de Alwis, #355280)

* Authentication plugins now receive all the parameters from the request
  itself (aka host, port, realm, path, etc). Previously, only the 
  authentication section name, username and encoded password were 
  provided. (Jean-Francois Roy)

* bzr gives a better message if an invalid regexp is passed to ``bzr log
  -m``.  (Anne Mohsen, Martin Pool)

* ``bzr split`` now says "See also: join" (Aaron Bentley, #335015)

* ``bzr version-info`` now works in empty branches. (Jelmer Vernooij,
  #313028)

* Fix "is not a stackable format" error when pushing a
  stackable-format branch with an unstackable-format repository to a
  destination with a default stacking policy.  (Andrew Bennetts)

* Fixed incorrect "Source format does not support stacking" warning
  when pushing to a smart server.  (Andrew Bennetts, #334114)

* Fix 'make check-dist-tarball' failure by converting paths to unicode when
  needed. (Vincent Ladeuil, #355454)

* Fixed "Specified file 'x/y/z' is outside current view: " occurring
  on ``bzr add x/y/z`` in formats supporting views when no view is
  defined.  (Ian Clatworthy, #344708)

* It is no longer possible to fetch between repositories while the
  target repository is in a write group. This prevents race conditions
  that prevent the use of RPC's to perform fetch, and thus allows
  optimising more operations. (Robert Collins, Andrew Bennetts)

* ``merge --force`` works again. (Robert Collins, #342105)

* No more warnings are issued about ``sha`` being deprecated under python-2.6.
  (Vincent Ladeuil, #346593)

* Pushing a new branch to a server that has a stacking policy will now
  upgrade from the local branch format when the stacking policy points at
  a branch which is itself stackable, because we know the client can read
  both branches, we know that the trunk for the project can be read too,
  so the upgrade will not inconvenience users. (Robert Collins, #345169)

* Pushing a new stacked branch will also push the parent inventories for
  revisions at the stacking boundary.  This makes sure that the stacked
  branch has enough data to calculate inventory deltas for all of its
  revisions (without requiring the fallback branch).  This avoids
  "'AbsentContentFactory' object has no attribute 'get_bytes_as'" errors
  when fetching the stacked branch from a 1.13 (or later) smart server.
  This partially fixes #354036.  (Andrew Bennetts, Robert Collins)

* The full test suite is passing again on OSX. Several minor issues (mostly
  test related) have been fixed. (Vincent Ladeuil, #355273).

* The GNU Changelog formatter is slightly improved in the case where
  the delta is empty, and now correctly claims not to support tags.
  (Andrea Bolognani)

* Shelve can now shelve changes to a symlink target.
  (James Westby, #341558)

* The help for the ``info`` command has been corrected.
  (Ian Clatworthy, #351931)

* Upgrade will now use a sensible default format if the source repository
  uses rich roots.  (Jelmer Vernooij, #252908)

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

* Expanded the index of the developer documentation. (Eric Siegerman)

* New topic `bzr help debug-flags`.  (Martin Pool)

* The generated manpage now explicitly lists aliases as commands.
  (James Westby, #336998)

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

* APIs deprecated in 1.6 and previous versions of bzr are now removed.
  (Martin Pool)

* ``CommitReporter`` is no longer called with ``unchanged`` status during
  commit - this was a full-tree overhead that bzr no longer performs.
  (Robert Collins)

* New abstract ``UIFactory`` method ``get_username`` which will be called to 
  obtain the username to use when connecting to remote machines. 
  (Jelmer Vernooij)

* New API ``Inventory.filter()`` added that filters an inventory by
  a set of file-ids so that only those fileids, their parents and
  their children are included.  (Ian Clatworthy)

* New sort order for ``get_record_stream`` ``groupcompress`` which
  sorts optimally for use with groupcompress compressors. (John Arbash
  Meinel, Robert Collins)

* Repository APIs ``get_deltas_for_revisions()`` and
  ``get_revision_delta()`` now support an optional ``specific_fileids``
  parameter. If provided, the deltas are filtered so that only those
  file-ids, their parents and their children are included.
  (Ian Clatworthy)

* The ``get_credentials`` and ``set_credentials`` methods of 
  ``AuthenticationConfig`` now accept an optional realm argument.
  (Jean-Francois Roy)

* The ``pb`` argument to ``fetch()`` is deprecated.
  (Martin Pool)

* The ``Serializer`` class and the serializer ``format registry`` have moved
  from ``bzrlib.xml_serializer`` to ``bzrlib.serializer``. (Jelmer Vernooij)

* The smart server jail now hooks into BzrDir.open to prevent any BzrDir
  that is not inside the backing transport from being opened.  See the
  module documentation for ``bzrlib.smart.request`` for details.
  (Andrew Bennetts, Robert Collins)

* ``Tree.get_symlink_target`` now always returns a unicode string result
  or None. Previously it would return the bytes from reading the link
  which could be in any arbitrary encoding. (Robert Collins)

Testing
*******

* ``bzrlib.tests.TestCase`` now fails the test if its own ``setUp``
  and ``tearDown`` weren't called.  This catches faulty tests that
  forget to upcall when overriding ``setUp`` and ``tearDown``.  Those
  faulty tests were not properly isolated.
  (Andrew Bennetts, Robert Collins)

* Fix test_msgeditor.MsgEditorTest test isolation.
  (Vincent Ladeuil, #347130)

* ``medusa`` is not used anymore as an FTP test server starting with
  python2.6. A new FTP test server based on ``pyftplib`` can be used
  instead. This new server is a soft dependency as medusa which is still
  preferred if both are available (modulo python version).
  (Vincent Ladeuil)

Internals
*********

* Added ``chk_map`` for fast, trie-based storage of tuple to string maps.
  (Robert Collins, John Arbash Meinel, Vincent Ladeuil)

* Added ``bzrlib.chk_map`` for fast, trie-based storage of tuple to string
  maps.  (Robert Collins, John Arbash Meinel, Vincent Ladeuil)

* Added ``bzrlib.inventory_delta`` module.  This will be used for
  serializing and deserializing inventory deltas for more efficient
  streaming on the network.  (Robert Collins, Andrew Bennetts)

* ``Branch._get_config`` has been added, which splits out access to the
  specific config file from the branch. This is used to let RemoteBranch
  avoid constructing real branch objects to access configuration settings.
  (Robert Collins, Andrew Bennetts)

* ``Branch`` now implements ``set_stacked_on_url`` in the base class as
  the implementation is generic and should impact foreign formats. This
  helps performance for ``RemoteBranch`` push operations to new stacked
  branches. (Robert Collins, Andrew Bennetts)

* ``BtreeIndex._spill_mem_keys_to_disk()`` now generates disk index with
  optmizations turned off. This only has effect when processing > 100,000
  keys during something like ``bzr pack``. (John Arbash Meinel)

* ``bzr selftest`` now accepts ``--subunit`` to run in subunit output
  mode. Requires ``lp:subunit`` installed to work, but is not a hard
  dependency. (Robert Collins)

* ``BzrDir.open_branch`` now takes an optional ``ignore_fallbacks``
  parameter for controlling opening of stacked branches.
  (Andrew Bennetts, Robert Collins)
  
* ``CommitBuilder`` has a new method, ``record_iter_changes`` which works
  in terms of an iter_changes iterator rather than full tree scanning.
  (Robert Collins)

* ``DirState`` can now be passed a custom ``SHA1Provider`` object
  enabling it to store the SHA1 and stat of the canonical (post
  content filtered) form. (Ian Clatworthy)

* New ``assertLength`` method based on one Martin has squirreled away
  somewhere. (Robert Collins, Martin Pool)

* New hook ``BzrDir.pre_open`` which runs before opening ``BzrDir``
  objects, allowing better enforcement of the smart server jail when
  dealing with stacked branches. (Robert Collins, Andrew Bennetts)

* New hook ``RioVersionInfoBuilder.revision``, allowing extra entries 
  to be added to the stanza that is printed for a particular revision.
  (Jelmer Vernooij)

* New repository method ``refresh_data`` to cause any repository to
  make visible data inserted into the repository by a smart server
  fetch operation. (Robert Collins, Andrew Bennetts)

* ``register_filter_stack_map`` now takes an optional fallback parameter,
  a callable to invoke if a preference has a value not in the map
  of filter stacks. This enhancement allows, for example,  bzr-svn to
  handle existing svn properties that define a list of keywords to be
  expanded.  (Ian Clatworthy)

* ``RemoteBranchConfig`` will use a new verb ``Branch.set_config_option``
  to write config settings to smart servers that support this, saving
  5 round trips on the stacked streaming acceptance test.
  (Robert Collins, Andrew Bennetts)

* ``RemoteBranch`` now provides ``_get_config`` for access to just the
  branch specific configuration from a remote server, which uses the 
  already existing ``Branch.get_config_file`` smart verb.
  (Robert Collins, Andrew Bennetts)

* ``RemoteRepository`` will now negatively cache missing revisions during
  ``get_parent_map`` while read-locked. Write-locks are unaffected.
  (Robert Collins, Andrew Bennetts)

* Removed ``InterRemoteToOther``, ``InterOtherToRemote`` and
  ``InterPackToRemotePack`` classes, as they are now unnecessary.
  (Andrew Bennetts)

* ``RepositoryFormat`` as a new attribute ``fast_deltas`` to indicate
  whether the repository can efficiently generate deltas between trees
  regardless of tree size. (Robert Collins)

* ``Repository.iter_files_bytes()`` now properly returns an "iterable of
  byte strings" (aka 'chunked') for the content. It previously was
  returning a plain string, which worked, but performed very poorly when
  building a working tree (file.writelines(str) is very inefficient). This
  can have a large effect on ``bzr checkout`` times. (John Arbash Meinel)

* selftest now supports a --parallel option, with values of 'fork' or
  'subprocess' to run the test suite in parallel. Currently only Linux
  machines work, other platforms need patches submitted. (Robert Collins,
  Vincent Ladeuil)

* ``tests.run_suite`` has a new parameter ``suite_decorators``, a list of 
  callables to use to decorate the test suite. Such decorators can add or
  remove tests, or even remote the test suite to another machine if
  desired. (Robert Collins)

* The smart server verb ``Repository.get_parent_map`` can now include
  information about ghosts when the special revision ``include-missing:``
  is in the requested parents map list. With this flag, ghosts are
  included as ``missing:REVISION_ID``. (Robert Collins, Andrew Bennetts)

* ``_walk_to_common_revisions`` will now batch up at least 50
  revisions before calling ``get_parent_map`` on the target,
  regardless of ``InterRepository``.
  (Andrew Bennetts, Robert Collins)


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