11
:2.4b2: NOT RELEASED YET
13
External Compatibility Breaks
14
*****************************
16
.. These may require users to change the way they use Bazaar.
18
* Two command synonyms for ``bzr branch`` have been deprecated, to avoid
19
confusion and to allow the names to later be reused. The removed names
20
are: ``get`` and ``clone``. (Martin Pool, #506265)
25
.. New commands, options, etc that users may wish to try out.
27
* ``bzr commit`` now supports a ``--lossy`` argument that can be used
28
to discard any data that can not be natively represented when committing
29
to a foreign VCS. (Jelmer Vernooij, #587721)
34
.. Improvements to existing commands, especially improved performance
35
or memory usage, or better results.
37
* ``bzr merge`` in large trees is now significantly faster. On a 70k entry
38
tree, the time went from ~3min down to 30s.
39
(John Arbash Meinel, #759091)
41
* Resolve ``lp:FOO`` urls locally rather than doing an XMLRPC request if
42
the user has done ``bzr launchpad-login``. The bzr+ssh URLs were already
43
being handed off to the remote server anyway (xmlrpc has been mapping
44
``lp:bzr`` to ``bzr+ssh://bazaar.launchpad.net/+branch/bzr``, rather
45
than ``bzr+ssh://bazaar.launchpad.net/~bzr-pqm/bzr/bzr.dev`` for a few
46
months now.) By doing it ourselves, we can cut out substantial startup
47
time. From Netherlands to London it was taking 368ms to do the XMLRPC
48
call as much as 2s from Sydney. You can test the local logic by using
49
``-Dlaunchpad``. (John Arbash Meinel, #397739)
51
* When building a new WorkingTree (such as during ``bzr co`` or
52
``bzr branch``) we now properly store the stat and hash of files that
53
are old enough. This saves a fair amount of time on the first
54
``bzr status`` (on a 500MB tree, it saves about 30+s).
55
(John Arbash Meinel, #740932)
61
.. Fixes for situations where bzr would previously crash or give incorrect
62
or undesirable results.
64
* Arguments that can't be decoded to unicode in the current posix locale give
65
a clearer error message without a traceback. (Martin [gz], #745712)
67
* ``bzrlib.log._DEFAULT_REQUEST_PARAMS`` is no longer accidentally
68
mutated by ``bzrlib.log._apply_log_request_defaults``. In practice
69
these default values aren't relied on very often so this probably
70
wasn't causing any trouble. (Andrew Bennetts)
72
* ``bzr log`` now works on revisions which are not in the current branch.
75
* Lazy hooks are now reset between test runs. (Jelmer Vernooij, #745566)
77
* ``bzrlib.merge.Merge`` now calls ``iter_changes`` without
78
``include_unversioned=True``. This makes it significantly faster in many
79
cases, because it only looks at modified files, rather than building
80
information about all files. This can cause failures in other
81
TreeTransform code, because it had been expecting to know the names of
82
things which had not changed (such as parent directories). All cases we
83
know about so far have been fixed, but there may be fallout for edge
84
cases that we are missing. (John Arbash Meinel, #759091)
86
* Standalone bzr.exe installation on Windows: user can put additional python
87
libraries into ``site-packages`` subdirectory of the installation directory,
88
this might be required for "installing" extra dependencies for some plugins.
89
(Alexander Belchenko, #743256)
91
* ``TreeTransform.create_file/new_file`` can now take an optional ``sha1``
92
parameter. If supplied, when the transform is applied, it will then call
93
``self._tree._observed_sha1`` for those files. This lets us update the
94
hash-cache for content that we create, preventing us from re-reading the
95
content in the next ``bzr status``. (John Arbash Meinel, #740932)
100
* Added a section about using a shared SSH account on a server for bzr+ssh
101
access. (Russell Smith)
103
* The documentation now recommends using SSH rather than SFTP in the
104
tutorials and the examples, because that will generally be much faster
105
and better in cases where it can be used. SFTP is still available and
106
mentioned as an alternative. (Martin Pool, #636712)
111
.. Changes that may require updates in plugins or other code that uses
114
* Commands now have an `invoked_as` attribute, showing the name under
115
which they were called before alias expansion.
118
* ``Hooks.create_hook`` is now deprecated in favour of ``Hooks.add_hook``.
121
* If you call `bzrlib.initialize` but forget to enter the resulting object
122
as a context manager, bzrlib will now be initialized anyhow.
123
(Previously simple programs calling bzrlib might find the library was
124
mysteriously silent.)
127
* Inventory-specific functionality has been split out of ``Tree`` into
128
a new ``InventoryTree`` class. Tree instances no longer
129
necessarily provide an ``inventory`` attribute. (Jelmer Vernooij)
131
* Inventory-specific functionality has been split out of ``RevisionTree``
132
into a new ``InventoryRevisionTree`` class. RevisionTree instances no
133
longer necessarily provide an ``inventory`` attribute. (Jelmer Vernooij)
135
* New method ``Hooks.uninstall_named_hook``. (Jelmer Vernooij, #301472)
137
* ``revision_graph_can_have_wrong_parents`` is now an attribute
138
on ``RepositoryFormat`` rather than a method on ``Repository``.
141
* ``TestCase.failUnlessExists`` and ``failIfExists`` are deprecated in
142
favour of ``assertPathExists`` and ``assertPathDoesNotExist``
146
* The ``revno`` parameter of ``log.LogRevision`` may now be None,
147
representing a revision which is not in the current branch.
148
(Matt Giuca, #241998)
150
* The various knit pack repository format classes have been moved
151
from ``bzrlib.repofmt.pack_repo`` to
152
``bzrlib.repofmt.knitpack_repo``. (Jelmer Vernooij)
154
* ``WorkingTree`` no longer provides an ``inventory``. Instead,
155
all inventory-related functionality is now on the subclass
156
``InventoryWorkingTree`` that all native Bazaar working tree
157
implementations derive from. (Jelmer Vernooij)
162
.. Major internal changes, unlikely to be visible to users or plugin
163
developers, but interesting for bzr developers.
165
* Added ``osutils.lstat`` and ``osutils.fstat``. These are just the ``os``
166
functions on Linux, but they are wrapped on Windows so that fstat
167
matches lstat results across all python versions.
170
* ``WorkingTree._observed_sha1`` also updates the 'size' column. It
171
happened to be updated as a side-effect of commit, but if we start using
172
the function elsewhere we might as well do it directly.
178
.. Fixes and changes that are only relevant to bzr's test framework and
179
suite. This can include new facilities for writing tests, fixes to
180
spurious test failures and changes to the way things should be tested.
182
* Stop using `failIf`, `failUnless`, `failIfEqual`, etc, that give
183
`PendingDeprecationWarnings` on Python2.7.
184
(Martin Pool, #760435)
192
This is the first beta of the 2.4 series, leading up to a 2.4.0
193
release in August 2011. Beta releases are suitable for everyday use
194
but may cause some incompatibilities with plugins. Some plugins may need
195
small updates to work with 2.4b1.
197
External Compatibility Breaks
198
*****************************
205
* Added ``changelog_merge`` plugin for merging changes to ``Changelog`` files
206
in GNU format. See ``bzr help changelog_merge`` for details.
209
* Configuration options can now use references to other options in the same
210
file by enclosing them with curly brackets (``{other_opt}``). This makes it
211
possible to use, for example,
212
``push_location=lp:~vila/bzr/config-{nickname}`` in ``branch.conf`` when
213
using a loom. During the beta period, the default behaviour is to disable
214
this feature. It can be activated by declaring ``bzr.config.expand = True``
215
in ``bazaar.conf``. (Vincent Ladeuil)
217
* External merge tools can now be configured in bazaar.conf. See
218
``bzr help configuration`` for more information. (Gordon Tyler, #489915)
220
* The ``lp:`` directory service now supports Launchpad's QA staging.
221
(Jelmer Vernooij, #667483)
226
* A new hidden command ``bzr repair-workingtree``. This is a way to force
227
the dirstate file to be rebuilt, rather than using a ``bzr checkout``
228
workaround. (John Arbash Meinel)
230
* Added a ``Branch.heads_to_fetch`` RPC to the smart server protocol.
231
This allows formats from plugins (such as looms) to efficiently tell the
232
client which revisions need to be fetched. (Andrew Bennetts)
234
* Branching, merging and pulling a branch now copies revisions named in
235
tags, not just the tag metadata. (Andrew Bennetts, #309682)
237
* ``bzr cat-revision`` no longer requires a working tree.
238
(Jelmer Vernooij, #704405)
240
* ``bzr export --per-file-timestamps`` for .tar.gz files will now
241
override the mtime for trees exported on Python 2.7 and later, which
242
expose the 'mtime' field in gzip files. This makes the output of
243
``bzr export --per-file-timestamps`` for a particular tree
244
deterministic. (Jelmer Vernooij, #711226)
246
* ``bzr export --format=zip`` can now export to standard output,
247
like the other exporters can. (Jelmer Vernooij, #513752)
249
* ``bzr export`` can now create ``.tar.xz`` and ``.tar.lzma`` files.
250
(Jelmer Vernooij, #551714)
252
* Getting all entries from ``CHKInventory.iter_entries_by_dir()`` has been
253
sped up dramatically for large trees. Iterating by dir is not the best
254
way to load data from a CHK inventory, so it preloads all the items in
255
the correct order. (With the gcc-tree, this changes it (re)reading 8GB
256
of CHK data, down to just 150MB.) This has noticeable affects for things
257
like building checkouts, etc. (John Arbash Meinel, #737234)
263
* A MemoryError thrown on the server during a remote operation will now be
264
usefully reported, and other unexpected errors will include the class name.
265
(Martin [gz], #722416)
267
* ``bzr annotate -r-1 file`` will now properly annotate a deleted file.
268
(Andrew King, #537442)
270
* ``bzr export`` to zip files will now set a mode on directories.
271
(Jelmer Vernooij, #207253)
273
* ``bzr export`` to tgz files will only write out the basename of the
274
tarfile to the gzip file. (Jelmer Vernooij, #102234)
276
* ``bzr push --overwrite`` with an older revision specified will now correctly
277
roll back the target branch. (Jelmer Vernooij, #386576)
279
* ``bzr lp-propose`` can now propose merges against packaging branches on
280
Launchpad without requiring the target branch to be specified.
281
(Jelmer Vernooij, #704647)
283
* ``bzr lp-propose`` no longer requires a reviewer to be specified. It will
284
instead leave setting the reviewer up to Launchpad if it was not specified.
285
(Jelmer Vernooij, #583772)
287
* ``bzr pull`` will now exit with exit code 1 if there were tag conflicts.
288
(Jelmer Vernooij, #213185)
290
* ``bzr mv`` user errors no longer throw UnicodeEncodeError with non-ascii
291
paths, however they may still print junk if not on a UTF-8 terminal.
292
(Martin [gz], #707954)
294
* ``bzr reconfigure --unstacked`` now copies revisions (and their
295
ancestors) named in tags into the unstacked repository, not just the
296
ancestry of the branch's tip. (Andrew Bennetts, #401646)
298
* ``bzr serve`` no longer crashes when a server_started hook is installed and
299
IPv6 support is available on the system. (Jelmer Vernooij, #293697)
301
* ``bzr tags`` will no longer choke on branches with ghost revisions in
302
their mainline and tags on revisions not in the branch ancestry.
303
(Jelmer Vernooij, #397556)
305
* ``bzr whoami`` will now display an error if both a new identity and
306
``--email`` were specified. (Jelmer Vernooij, #680449)
308
* ``launchpadlib`` doesn't provide the ``uris`` module in some old versions.
309
(Vincent Ladeuil, #706835)
311
* Empty entries in the ``NO_PROXY`` variable are no longer treated as matching
313
(Martin Pool, #586341)
315
* Plugins incompatible with the current version of bzr no longer produce a
316
warning on every command invocation. Instead, a message is shown by
317
``bzr plugins`` and in crash reports.
318
(#704195, Martin Pool)
320
* The "pretty" version of ``needs_read_lock`` and ``needs_write_lock`` now
321
preserves the identity of default parameter values.
322
(Andrew Bennetts, #718569)
324
* ``bzr dump-btree --raw`` no longer tracebacks on a B-Tree file
325
containing no rows. (Eric Siegerman, #715508)
327
* Fix ``bzr lp-mirror`` to work on command line branch URLs and branches
328
without an explicit public location. (Max Bowsher)
330
* On Python 2.6 and higher, use multiprocessing.cpu_count() to retrieve the
331
number of available processors. (Jelmer Vernooij, #693140)
336
* Added ``Branch.heads_to_fetch`` method. Implementations of the Branch API
337
must now inherit or implement this method. (Andrew Bennetts, #721328)
339
* Added ``bzrlib.mergetools`` module with helper functions for working with
340
the list of external merge tools. (Gordon Tyler, #489915)
342
* All methods and arguments that were deprecated before 2.0
343
have been removed. (Jelmer Vernooij)
345
* Branch formats should now be registered on the format registry
346
(``bzrlib.branch.format_registry``) rather than using the class
347
methods on ``BranchFormat``. (Jelmer Vernooij, #714729)
349
* ``BranchFormat.supports_leaving_lock()`` and
350
``RepositoryFormat.supports_leaving_lock`` flags have been added.
353
* ``Branch.fetch`` implementations must now accept an optional
354
``fetch_spec`` keyword argument. (Andrew Bennetts)
356
* ``Branch.import_last_revision_info`` is deprecated. Use the
357
``import_last_revision_info_and_tags`` method instead.
360
* Because it was too specific to BzrDir implementations,
361
``ControlDir.sprout`` no longer has a default implementation; it now
362
raises ``NotImplementedError``. (Jelmer Vernooij, #717937)
364
* ``ControlDirFormat.register_format`` has been removed. Instead,
365
``Prober`` implementations should now implement a ``known_formats``
366
method. (Jelmer Vernooij)
368
* ControlDirFormats can now provide a ``check_status`` method and
369
raise a custom exception or warning when an unsupported or deprecated
370
format is being opened. (Jelmer Vernooij, #731311)
372
* ``bzrlib.revionspec.dwim_revspecs`` is deprecated.
373
Use ``bzrlib.revisionspec.RevisionSpec_dwim.append_possible_revspec`` and
374
``bzrlib.revisionspec.RevisionSpec_dwim.append_possible_lazy_revspec``
375
instead. (Jelmer Vernooij, #721971)
377
* ``BzrDirFormat`` has a new attribute ``fixed_components`` that
378
indicates whether the components of the bzrdir can be upgraded
379
independent of the ``BzrDir``. (Jelmer Vernooij)
381
* ``BzrProber.register_format`` and ``BzrProber.unregister_format`` are
382
now deprecated in favour of the ``BzrProber.formats`` format registry.
385
* ``ControlDir`` implementations no longer have to provide the
386
``get_branch_transport``, ``get_workingtree_transport`` and
387
``get_repository_transport`` methods. (Jelmer Vernooij, #730325)
389
* ``Converter`` has been moved from ``bzrlib.bzrdir`` to
390
``bzrlib.controldir``. (Jelmer Vernooij)
392
* Repository formats can now provide
393
``_get_extra_interrepo_test_combinations`` in the same module
394
to provide extra test combinations for ``bzrlib.tests.per_repository``.
397
* Repository formats should now be registered on the format registry
398
(``bzrlib.repository.format_registry``) rather than using the class
399
methods on ``RepositoryFormat``. (Jelmer Vernooij)
401
* Repository formats can now indicate they do not support the full
402
VersionedFiles API by setting the ``supports_full_versioned_files``
403
attribute to False. A subset of the VersionedFiles API
404
(signatures and text graphs) still needs to be supported.
407
* Repository formats have a new method ``is_deprecated`` that
408
implementations can override to return True to trigger a deprecation
409
warning. (Jelmer Vernooij)
411
* The ``revision_id`` parameter of
412
``Repository.search_missing_revision_ids`` and
413
``InterRepository.search_missing_revision_ids`` is deprecated. It is
414
replaced by the ``revision_ids`` parameter. (Andrew Bennetts)
416
* Working tree formats should now be registered on the format registry
417
(``bzrlib.working_tree.format_registry``) rather than using the class
418
methods on ``WorkingTreeFormat``. (Jelmer Vernooij, #714730)
423
* ``CatchingExceptionThread`` (formerly ThreadWithException) has been moved
424
out of the ``bzrlib.tests`` hierarchy to make it clearer that it can be used
425
outside of tests. This class makes it easier to track exceptions in threads
426
by catching them so they can be re-raised in the controlling thread. It's
427
available in the ``bzrlib.cethread`` module. (Vincent Ladeuil)
429
* Correctly propogate malloc failures from diff-delta.c code as MemoryError
430
so OOM conditions during groupcompress are clearly reported. This entailed a
431
change to several function signatures. (Martin [gz], #633336)
433
* ``HookPoint.lazy_hook`` and ``Hooks.install_named_lazy_hook`` can install
434
hooks for which the callable is loaded lazily. (Jelmer Vernooij)
439
* The Range parsing for HTTP requests will correctly parse incomplete ranges.
440
(Vincent Ladeuil, #731240)
443
vim: tw=74 ft=rst ff=unix
added
removed
doc/en/release-notes/bzr-2.4.txt
