1
*************************
2
What's New in Bazaar 2.2?
3
*************************
5
Bazaar 2.2.0, released on the 6th of August 2010, marks the start of
6
another long-term-stable series. From here, we will only make bugfix
7
releases on the 2.2 series (2.2.1, etc), while 2.3 will become our new
8
development series. The 2.0 and 2.1 series will also continue to get
9
bugfixes. (Currently 2.0 is planned to be supported for another 6 months.)
11
The main changes in 2.2 are: **better local and network performance**,
12
**reduced memory usage**, and several user-interface improvements.
14
Users are encouraged to upgrade from the other stable series. This
15
document outlines the improvements in Bazaar 2.2 vs Bazaar 2.1. As well as
16
summarizing improvements made to the core product, it highlights
17
enhancements within the broader Bazaar world of potential interest to
20
Bazaar 2.2.0 includes all the fixes from 2.1.2 and 2.0.6.
22
Over 120 bugs have been fixed in total. See the
23
:doc:`../release-notes/index` for a full list.
25
Bazaar 2.2.0 is fully compatible both locally and on the network with 2.0
26
and 2.1, and can read and write repositories generated by all previous
33
There are some compatibility changes in this release.
35
* For commandline users we no longer guess user identity for ``bzr
36
commit``: users must specify their identity using ``bzr whoami`` (you
37
don't need to specify your identity for readonly operations).
38
This avoids problems where the previous guessed default caused commits
39
be recorded as coming from, for example ``<sam@localhost>``.
41
Improved conflict handling
42
**************************
44
Tree-shape conflicts can be resolved by providing ``--take-this`` and
45
``--take-other`` to the ``bzr resolve`` command. Just marking the conflict
46
as resolved is still accessible via the ``--done`` default action.
51
* ``bzr init`` does not recursively scan directory contents anymore
52
leading to faster init for directories with existing content.
53
(Martin [gz], Parth Malwankar, #501307)
55
* Less code is loaded at startup, so there's less overhead on running all
57
(Andrew Bennetts, Martin Pool)
59
* Reduce peak memory by one copy of compressed text.
60
(John Arbash Meinel, #566940)
62
* Avoid repeated locking of local objects in ``diff``, ``missing``, and
63
``pull``, so those options are faster.
69
* Bazaar now reads data from SSH connections more efficiently on platforms
70
that provide the ``socketpair`` function, and when using paramiko.
71
(Andrew Bennetts, #590637)
73
* Index lookups in pack repositories search recently hit pack files
74
first. In repositories with many pack files this can greatly reduce the
75
number of files accessed, the number of bytes read, and the number of
76
read calls. An incremental pull via plain HTTP takes half the time and
77
bytes for a moderately large repository. (Andrew Bennetts)
79
* Index lookups only re-order the indexes when the hit files aren't
80
already first. Reduces the cost of reordering
81
(John Arbash Meinel, #562429)
87
* Added ``bzr remove-branch`` command that can remove a local or remote
88
branch. (Jelmer Vernooij, #276295)
90
* ``bzr export`` now takes an optional argument ``--per-file-timestamps``
91
to set file mtimes to the last timestamp of the last revision in which
92
they were changed rather than the current time. (Jelmer Vernooij)
94
* Tag names can now be determined automatically by ``automatic_tag_name``
95
hooks on ``Branch`` if they are not specified on the command line.
98
* Tree-shape conflicts can be resolved by providing ``--take-this`` and
99
``--take-other`` to the ``bzr resolve`` command. Just marking the conflict
100
as resolved is still accessible via the ``--done`` default action.
103
* The ``--directory`` option is supported for a number of additional
104
commands: added, annotate, bind, cat, cat-revision, clean-tree,
105
conflicts, deleted, export, ignore, ignored, lookup-revision, ls,
106
merge-directive, missing, modified, nick, re-sign, resolve, shelve,
107
switch, unbind, unknowns, unshelve, whoami.
108
(Martin von Gagern, #527878)
110
* ``bzr commit`` accepts ``-p`` (for "patch") as a shorter name for
112
(Parth Malwankar, #571467)
114
* ``bzr ignore`` now supports a ``--default-rules`` option that displays
115
the default ignore rules used by bzr. The flag ``--old-default-rules``
116
is no longer supported by ``ignore``.
117
(Parth Malwankar, #538703)
119
* ``bzr pack`` now supports a ``--clean-obsolete-packs`` option that
120
can save disk space by deleting obsolete pack files created during the
122
(Parth Malwankar, #304320)
124
* New command line option ``--authors`` to ``bzr log`` allows users to
125
select which of the apparent authors and committer should be
126
included in the log. Defaults depend on format. (Martin von Gagern, #513322)
128
* The bash_completion plugin from the bzr-bash-completion project has
129
been merged into the tree. It provides a bash-completion command and
130
replaces the outdated ``contrib/bash/bzr`` script with a version
131
using the plugin. (Martin von Gagern, #560030)
133
* A new transport based on GIO (the gnome i/o library) provides access to
134
samba shares, webdav using gio+smb and gio+dav. It is also possible to
135
use gio for some already existing transport methods as gio+file,
143
* Plugins can be disabled by defining ``BZR_DISABLE_PLUGINS`` as
144
a list of plugin names separated by ':' (';' on windows).
145
(Vincent Ladeuil, #411413)
147
* Plugins can be loaded from arbitrary locations by defining
148
``BZR_PLUGINS_AT`` as a list of ``name@path`` separated by ':' (';' on
150
Windows). This takes precedence over ``BZR_PLUGIN_PATH`` for the
151
specified plugins, and is expected to be most useful for plugin
153
(Vincent Ladeuil, #82693)
156
Apport crash reporting
157
**********************
159
* If the Apport crash-reporting tool is available, bzr crashes are now
160
stored into the ``/var/crash`` apport spool directory, and the user is
161
invited to report them to the developers from there, either
162
automatically or by running ``apport-bug``. No information is sent
163
without specific permission from the user. (Martin Pool, #515052)
166
Improved Launchpad integration
167
******************************
169
* Merges can be proposed on Launchpad with the new ``lp-propose-merge``
176
* ``bzr help patterns`` now explains case insensitive patterns and
177
points to Python regular expression documentation.
178
(Parth Malwankar, #594386)
180
* Numerous improvements have been made to the developer documentation.
190
The `grep plugin <https://launchpad.net/bzr-grep>`_ has developed well
191
during the bzr 2.2 cycle. bzr grep can search the versioned files in the
192
working tree, or in one or a series of revisions, or it can search through
193
only the changes in a revision range.
198
`qbzr <https://launchpad.net/qbzr>`_, a cross-platform graphical interface
199
to Bazaar, gained many features and fixes in its 0.19 release, including:
201
* qannotate has new look and feel; with new features: find text and goto
204
* Improved performance of qlog, and treewidget-based dialogs (qcommit,
207
* qpush, qmerge, etc.: when there are uncommitted changes in the working
208
tree, user has the option to commit, or revert.
210
* qcommit: user can update bound branch/checkout if it is not up to date.
212
* Better support of Mac OS X: dialog windows no more start in background.
214
* qlog: Context menu actions for tag and revert will now show a branch
215
menu if more than one branch is open.
217
* qlog: more context menu actions for update, cherry-pick, and reverse
220
* Language of GUI can be set in DEFAULT section of bazaar.conf
221
as ``language = code``. Language codes are the same
222
as for ``LANG`` environment variable.
223
Environment variable ``LANGUAGE`` still preferred over settings
227
Platform-specific changes
228
*************************
233
* There's a new py2exe windows program ``bzrw.exe``, which allows for starting a Bazaar GUI with out have a console open in the background. (Gary van der Merwe, #433781`)
235
* The all-in-one Windows installer will now be built with docstrings stripped
236
from the library zip, reducing the size and slightly improving cold startup
237
time. Bundled plugins are unchanged for the moment, but if adding other new
238
plugins to an all-in-one installation, ensure they are compiled and
239
installed with -O1 or help may not work. (Martin [gz])
241
* Parsing of command lines, for example in ``diff --using``, no longer
242
treats backslash as an escape character on Windows. (Gordon Tyler,
249
* BzrError subclasses no longer support the name "message" to be used
250
as an argument for __init__ or in _fmt format specification as this
251
breaks in some Python versions. errors.LockError.__init__ argument
252
is now named "msg" instead of earlier "message".
253
(Parth Malwankar, #603461)
255
* The old ``bzr selftest --benchmark`` option has been removed.
256
<https://launchpad.net/bzr-usertest> is an actively-maintained
257
macrobenchmark suite.
260
* bzrlib library users now need to call ``__enter__`` and ``__exit__`` on
261
the result of ``bzrlib.initialize``. This change was made when fixing
262
the bad habit recent bzr versions have had of leaving progress bars
263
behind on the screen. That required calling another function before
264
exiting the program, and it made sense to provide a full context
265
manager at the same time. (Robert Collins)
267
* The ``bzr`` front end now requires a ``bzrlib.ui.ui_factory`` which is a
268
context manager in the Python 2.5 and above sense. The bzrlib base class
269
is such a manager, but third party UI factories which do not derive from
270
``bzrlib.ui.UIFactory`` will be incompatible with the command line front
273
* URLs like ``foo:bar/baz`` are now always parsed as a URL with scheme "foo"
274
and path "bar/baz", even if bzr does not recognize "foo" as a known URL
275
scheme. Previously these URLs would be treated as local paths.
282
For more detailed information on the changes made, see the
283
the :doc:`../release-notes/index` for:
285
* the interim bzr `milestones <https://launchpad.net/bzr/2.2>`_
286
* the plugins you use.
288
For a summary of changes made in earlier releases, see:
290
* :doc:`whats-new-in-2.1`
added
removed
doc/en/whats-new/whats-new-in-2.2.txt
