~bzr-pqm/bzr/bzr.dev

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Bazaar Release Notes

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.. toctree::

   :maxdepth: 1

bzr 1.18.1

##########

:Codename:     nein nein nein!

:1.18.1:       2009-09-09

This release fixes two small but worthwhile bugs relevant to users on

Microsoft Windows: some commands that failed on with locking errors will

now work, and a bug that caused poor performance after committing a file

with line-ending conversion has now been fixed.  It also fixes a bug in

pushing to older servers.

Bug Fixes

*********

* Fixed a problem where using content filtering and especially end-of-line

  conversion will commit too many copies a file.

  (Martin Pool, #415508)

* Fix assertion error about ``_remember_remote_is_before`` in

  ``set_tags_bytes`` when pushing to older smart servers.  

  (Andrew Bennetts, Alexander Belchenko, #418931)

Improvements

************

* ``bzr push`` locally on Windows will no longer give a locking error with

  dirstate based formats. (Robert Collins)

* ``bzr shelve`` and ``bzr unshelve`` now work on Windows.

  (Robert Collins, #305006)

API Changes

***********

* ``bzrlib.shelf_ui`` has had the ``from_args`` convenience methods of its

  classes changed to manage lock lifetime of the trees they open in a way

  consistent with reader-exclusive locks. (Robert Collins, #305006)

* ``Tree.path_content_summary`` may return a size of None, when called on

  a tree with content filtering where the size of the canonical form

  cannot be cheaply determined.  (Martin Pool)

* When manually creating transport servers in test cases, a new helper

  ``TestCase.start_server`` that registers a cleanup and starts the server

  should be used. (Robert Collins)

bzr 1.18

########

Compatibility Breaks

********************

* Committing directly to a stacked branch from a lightweight checkout will

  no longer work. In previous versions this would appear to work but would

  generate repositories with insufficient data to create deltas, leading

  to later errors when branching or reading from the repository.

  (Robert Collins, bug #375013)

New Features

************

Bug Fixes

*********

* Fetching from 2a branches from a version-2 bzr protocol would fail to

  copy the internal inventory pages from the CHK store. This cannot happen

  in normal use as all 2a compatible clients and servers support the

  version-3 protocol, but it does cause test suite failures when testing

  downlevel protocol behaviour. (Robert Collins)

* Fix a test failure on karmic by making a locale test more robust.

  (Vincent Ladeuil, #413514)

* Fixed "Pack ... already exists" error when running ``bzr pack`` on a

  fully packed 2a repository.  (Andrew Bennetts, #382463)

* Further tweaks to handling of ``bzr add`` messages about ignored files.

  (Jason Spashett, #76616)

* Properly handle fetching into a stacked branch while converting the

  data, especially when there are also ghosts. The code was filling in

  parent inventories incorrectly, and also not handling when one of the

  parents was a ghost. (John Arbash Meinel, #402778, #412198)

* ``RemoteStreamSource.get_stream_for_missing_keys`` will fetch CHK

  inventory pages when appropriate (by falling back to the vfs stream

  source).  (Andrew Bennetts, #406686)

* StreamSource generates rich roots from non-rich root sources correctly

  now.  (Andrew Bennetts, #368921)

* When deciding whether a repository was compatible for upgrading or

  fetching, we previously incorrectly checked the default repository

  format for the bzrdir format, rather than the format that was actually

  present on disk.  (Martin Pool, #408824)

Improvements

************

* A better description of the platform is shown in crash tracebacks, ``bzr

  --version`` and ``bzr selftest``.

  (Martin Pool, #409137)

* Cross-format fetches (such as between 1.9-rich-root and 2a) via the

  smart server are more efficient now.  They send inventory deltas rather

  than full inventories.  The smart server has two new requests,

  ``Repository.get_stream_1.19`` and ``Repository.insert_stream_1.19`` to

  support this.  (Andrew Bennetts, #374738, #385826)

* Extracting the full ancestry and computing the ``merge_sort`` is now

  significantly faster. This effects things like ``bzr log -n0``. (For

  example, ``bzr log -r -10..-1 -n0 bzr.dev`` is 2.5s down to 1.0s.

  (John Arbash Meinel)

Documentation

*************

API Changes

***********

Internals

*********

* ``-Dstrict_locks`` can now be used to check that read and write locks

  are treated properly w.r.t. exclusivity. (We don't try to take an OS

  read lock on a file that we already have an OS write lock on.) This is

  now set by default for all tests, if you have a test which cannot be

  fixed, you can use ``self.thisFailsStrictLockCheck()`` as a

  compatibility knob. (John Arbash Meinel)

* InterDifferingSerializer is now only used locally.  Other fetches that

  would have used InterDifferingSerializer now use the more network

  friendly StreamSource, which now automatically does the same

  transformations as InterDifferingSerializer.  (Andrew Bennetts)

* ``KnownGraph`` now has a ``.topo_sort`` and ``.merge_sort`` member which

  are implemented in pyrex and significantly faster. This is exposed along

  with ``CombinedGraphIndex.find_ancestry()`` as

  ``VersionedFiles.get_known_graph_ancestry(keys)``.

  (John Arbash Meinel)

* RemoteBranch.open now honours ignore_fallbacks correctly on bzr-v2

  protocols. (Robert Collins)

* The index code now has some specialized routines to extract the full

  ancestry of a key in a more efficient manner.

  ``CombinedGraphIndex.find_ancestry()``. (Time to get ancestry for

  bzr.dev drops from 1.5s down to 300ms. For OOo from 33s => 10.5s) (John

  Arbash Meinel)

Testing

*******

* Install the test ssl certificate and key so that installed bzr

  can run the https tests. (Denys Duchier, #392401)

bzr 1.18rc1

###########

:Codename: little traveller

:1.18:    2009-08-20

:1.18rc1: 2009-08-10

This release of Bazaar marches on towards the 2.0 release in which the 2a

'brisbane-core' format becomes generally recommended.  Most of the work in

this release now focusses on bug fixes and stabilization, covering both 2a

and previous formats.  There is a new text-mode interactive merge feature,

a new guide to migration to 2a format in the user documentation, and

pushing branches to a smart server is now much faster.  

The Bazaar team decided that 2.0 will be a long-term supported release,

with bugfix-only releases based on it continuing for at least six months

or until the following stable release.

There are no changes from 1.18rc1 to 1.18.

New Features

************

* ``bzr merge --interactive`` applies a user-selected portion of the

  merge.  The UI is similar to ``shelve``.  (Aaron Bentley)

* ``bzr reconfigure`` now takes options ``--stacked-on URL`` and

  ``--unstacked`` to change stacking of a branch.

  (Martin Pool, #391411)

Bug Fixes

*********

* Annotating on a stacked branch will now succeed in simple scenarios.

  There are still some complex scenarios where it will fail (bug #399884)

  (John Arbash Meinel, #393366)

* A progress bar is no longer left dangling when ``bzr selftest``

  completes, and the progress bar updates with zero latency so the

  displayed test name is always the one that's actually running.

  (Martin Pool, #123688)

* Authenticating against an ssh server now uses ``auth_none`` to determine

  if password authentication is even supported. This fixes a bug where

  users would be prompted for a launchpad password, even though launchpad

  only supports publickey authentication. (John Arbash Meinel, #375867)

* BranchBuilder now accepts timezone to avoid test failures in countries far

  from GMT. (Vincent Ladeuil, #397716)

* ``bzr commit`` no longer saves the unversioning of missing files until

  the commit has completed on the branch. This means that aborting a

  commit that found a missing file will leave the tree unedited.

  (Robert Collins, #282402)

* ``bzr mv`` no longer takes out branch locks, which allows it to work

  when the branch is readonly. (Robert Collins, #216541)

* ``bzr revert .`` no longer generates an InconsistentDelta error when

  there are missing subtrees. (Robert Collins, #367632)

* ``bzr send`` now generates valid bundles with ``--2a`` formats. However,

  do to internal changes necessary to support this, older clients will

  fail when trying to insert them. For newer clients, the bundle can be

  used to apply the changes to any rich-root compatible format.

  (John Arbash Meinel, #393349)

* Cope with FTP servers that don't support restart/append by falling back

  to reading and then rewriting the whole file, such as TahoeLAFS.  (This

  fallback may be slow for some access patterns.)  (Nils Durner, #294709)

* Encode the paths in ``mbcs`` encoding on Windows when spawning an

  external diff client. This at least allows supporting filenames that are

  not ascii, but are present in the current locale. Ideally we would be

  able to pass the Unicode path, but that would be client dependent.

  (John Arbash Meinel, #382709)

* Fix a compile bug on Solaris having to do with const and

  pointer-to-pointers. (John Arbash Meinel, #408441)

* Fixed a NameError that occurs when merging or pulling from a URL that

  causes a redirection loop when bzr tries to read a URL as a bundle.

  (Andrew Bennetts, #400847)

* Fix ``AttributeError: 'TestUIFactory' object has no attribute 'tick'``

  running send and similar commands on 2a formats.

  (Martin Pool, #408201)

* Fix crash in some invocations of ``bzr status`` in format 2a.

  (Martin Pool, #403523)

* Fixed export to existing directory: if directory is empty then export 

  will succeed, otherwise it fails with error.

  (Alexander Belchenko, #406174)

* Fixed spurious "Source branch does not support stacking" warning when

  pushing. (Andrew Bennetts, #388908)

* Fixed spurious transport activity indicator appearing while tests are

  running.  (Martin Pool, #343532)

* Merge now correctly handles empty right-hand revision specs.

  (Aaron Bentley, #333961)

* Renames to lexographically lower basenames in trees that have never been

  committed to will no longer corrupt the dirstate. This was caused by an

  bug in the dirstate update_minimal method. (Robert Collins, #395556)

* Requests for unknown methods no longer cause the smart server to log

  lots of backtraces about ``UnknownSmartMethod``, ``do_chunk`` or

  ``do_end``.  (Andrew Bennetts, #338561)

* Shelve will not shelve the initial add of the tree root.  (Aaron Bentley)

* Streaming from bzr servers where there is a chain of stacked branches

  (A stacked on B stacked on C) will now work. (Robert Collins, #406597)

* The environment variable ``BZR_PROGRESS_BAR`` set to either ``text`` or ``none``

  always forces progress bars either on or off respectively.  Otherwise,

  they're turned on if ``TERM`` is not ``dumb`` and stderr is a terminal.

  bzr always uses the 'text' user interface when run as a command, so

  ``BZR_USE_TEXT_UI`` is no longer needed.

  (Martin Pool, #339385, #387717)

* The optional ``_knit_load_data_pyx`` C extension was never being

  imported.  This caused significant slowdowns when reading data from

  repositories.  (Andrew Bennetts, #405653)

* The ``--hardlink`` option to ``branch`` and ``checkout`` is not

  supported at the moment on workingtree formats that can do content

  filtering.  (See <https://bugs.edge.launchpad.net/bzr/+bug/408193>.)

  bzr now says so, rather than just ignoring the option.  (Martin Pool)

* There was a bug in ``osutils.relpath`` that was only triggered on

  Windows. Essentially if you were at the root of a drive, and did

  something to a branch/repo on another drive, we would go into an

  infinite loop while trying to find a 'relative path'.

  (John Arbash Meinel, #394227)

* ``WorkingTree4.unversion`` will no longer fail to unversion ids which

  were present in a parent tree but renamed in the working tree.

  (Robert Collins, #187207)

Improvements

************

* Can now rename/move files even if they have been removed from the inventory.

  (Marius Kruger)

* Pushing branches with tags via ``bzr://`` and ``bzr+ssh://`` is much

  faster, using a new ``Branch.set_tags_bytes`` smart server verb rather

  than VFS methods.  For example, pushes of small branches with tags take

  11 rather than 18 smart server requests.  (Andrew Bennetts, #398608)

* Sending Ctrl-Break on Windows will now drop you into the debugger, in

  the same way that sending Ctrl-\\ does on other platforms.

  (John Arbash Meinel)

Documentation

*************

* Added Bazaar 2.0 Upgrade Guide. (Ian Clatworthy)

API Changes

***********

* ``CLIUIFactory`` is deprecated; use ``TextUIFactory`` instead if you

  need to subclass or create a specific class, or better yet the existing

  ``make_ui_for_terminal``.  ``SilentUIFactory`` is clarified to do no

  user interaction at all, rather than trying to read from stdin but not

  writing any output, which would be strange if reading prompts or

  passwords.  (Martin Pool)

* New TransformPreview.commit() allows committing without a working tree.

  (Aaron Bentley)

* ``pb`` parameter to ``TextTestResult`` is deprecated and ignored.

  (Martin Pool)

* ProgressTasks now prefer to talk direct to their ProgressView not to the

  UIFactory. 

  (Martin Pool)

* ``WorkingTree._check`` now requires a references dict with keys matching

  those returned by ``WorkingTree._get_check_refs``. (Robert Collins)

Internals

*********

* ``CHKInventory.path2id`` uses the parent_id to basename hash to avoid

  reading the entries along the path, reducing work to lookup ids from

  paths. (Robert Collins)

* ``CHKMap.apply_delta`` now raises ``InconsistentDelta`` if a delta adds

  as new a key which was already mapped. (Robert Collins)

* Inventory delta application catches more cases of corruption and can

  prevent corrupt deltas from affecting consistency of data structures on

  disk. (Robert Collins)

* --subunit support now adds timestamps if the subunit version supports

  it. (Robert Collins)

* The Windows all-in-one installer now bundles the PyQt image format

  plugins, which allows previewing more images as part of 'qdiff'.

  (Alexander Belchenko)

Testing

*******

* Merge directive cherrypick tests must use the same root id.

  (Martin Pool, #409684)

* Spurious failure in ``check`` tests on rich-root formats fixed.

  (Martin Pool, #408199)

* The ``bzrlib.tests.TextTestRunner`` will no longer call

  ``countTestsCases`` on the test being run. Progress information is

  instead handled by having the test passed in call ``result.progress``

  before running its contents. This improves the behaviour when using

  ``TextTestRunner`` with test suites that don't support

  ``countTestsCases``. (Robert Collins)

..

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