bzr-0.11 released

Robert Collins robertc at
Mon Oct 2 00:53:19 BST 2006

I'm happy to announce the release of bzr 0.11. This release is stable
and suitable for general deployment.

and GPG signature:

This release fixes a number of critical and high importance bugs,
introduces API changes in preparation for future features (specifically
our future working tree optimisation, and the nested trees).

Launchpad has a good list of the bugs and features for 0.11:

The next planned release of bzr is the release candidate for 0.12 due
October 23rd 2006.

Many thanks to all the contributors to this release! I've included the
contents of NEWS for 0.11 below:

bzr 0.11  2006-10-02

    * Smart server transport test failures on windows fixed. (Lukáš Lalinský).

bzr 0.11rc2  2006-09-27


    * Test suite hangs on windows fixed. (Andrew Bennets, Alexander Belchenko).
    * Commit performance regression fixed. (Aaron Bentley, Robert Collins, John
      Arbash Meinel).

bzr 0.11rc1  2006-09-25


    * Knit files now wait to create their contents until the first data is
      added. The old code used to create an empty .knit and a .kndx with just
      the header. However, this caused a lot of extra round trips over sftp.
      This can change the time for ``bzr push`` to create a new remote branch
      from 160s down to 100s. This also affects ``bzr commit`` performance when
      adding new files, ``bzr commit`` on a new kernel-like tree drops from 50s
      down to 40s (John Arbash Meinel, #44692)

    * When an entire subtree has been deleted, commit will now report that
      just the top of the subtree has been deleted, rather than reporting
      all the individual items. (Robert Collins)

    * Commit performs one less XML parse. (Robert Collins)

    * ``bzr checkout`` now operates on readonly branches as well
      as readwrite branches. This fixes bug #39542. (Robert Collins)

    * ``bzr bind`` no longer synchronises history with the master branch.
      Binding should be followed by an update or push to synchronise the 
      two branches. This is closely related to the fix for bug #39542.
      (Robert Collins)

    * ``bzrlib.lazy_import.lazy_import`` function to create on-demand 
      objects.  This allows all imports to stay at the global scope, but
      modules will not actually be imported if they are not used.
      (John Arbash Meinel)

    * Support bzr:// and bzr+ssh:// urls to work with the new RPC-based
      transport which will be used with the upcoming high-performance smart
      server. The new command ``bzr serve`` will invoke bzr in server mode,
      which processes these requests. (Andrew Bennetts, Robert Collins, Martin

    * New command ``bzr version-info`` which can be used to get a summary
      of the current state of the tree. This is especially useful as part
      of a build commands. See ``doc/version_info.txt`` for more information 
      (John Arbash Meinel)


    * 'bzr inventory [FILE...]' allows restricting the file list to a
      specific set of files. (John Arbash Meinel, #3631)

    * Don't abort when annotating empty files (John Arbash Meinel, #56814)

    * Add ``Stanza.to_unicode()`` which can be passed to another Stanza
      when nesting stanzas. Also, add ``read_stanza_unicode`` to handle when
      reading a nested Stanza. (John Arbash Meinel)

    * Transform._set_mode() needs to stat the right file. 
      (John Arbash Meinel, #56549)

    * Raise WeaveFormatError rather than StopIteration when trying to read
      an empty Weave file. (John Arbash Meinel, #46871)

    * Don't access e.code for generic URLErrors, only HTTPErrors have .code.
      (Vincent Ladeuil, #59835)

    * Handle boundary="" lines properly to allow access through a Squid proxy.
      (John Arbash Meinel, #57723)

    * revert now removes newly-added directories (Aaron Bentley, #54172)

    * ``bzr upgrade sftp://`` shouldn't fail to upgrade v6 branches if there 
      isn't a working tree. (David Allouche, #40679)

    * Give nicer error messages when a user supplies an invalid --revision
      parameter. (John Arbash Meinel, #55420)

    * Handle when LANG is not recognized by python. Emit a warning, but
      just revert to using 'ascii'. (John Arbash Meinel, #35392)

    * Don't use preexec_fn on win32, as it is not supported by subprocess.
      (John Arbash Meinel)

    * Skip specific tests when the dependencies aren't met. This includes
      some ```` tests when ``python-dev`` is not available, and
      some tests that depend on paramiko. (John Arbash Meinel, Mattheiu Moy)

    * Fallback to Paramiko properly, if no ``ssh`` executable exists on
      the system. (Andrew Bennetts, John Arbash Meinel)

    * ``Branch.bind(other_branch)`` no longer takes a write lock on the
      other branch, and will not push or pull between the two branches.
      API users will need to perform a push or pull or update operation if they
      require branch synchronisation to take place. (Robert Collins, #47344)

    * When creating a tarball or zipfile export, export unicode names as utf-8
      paths. This may not work perfectly on all platforms, but has the best
      chance of working in the common case. (John Arbash Meinel, #56816)

    * When committing, only files that exist in working tree or basis tree
      may be specified (Aaron Bentley, #50793)


    * Fixes to run on Python 2.5 (Brian M. Carlson, Martin Pool, Marien Zwart)


    * TestCaseInTempDir now creates a separate directory for HOME, rather
      than having HOME set to the same location as the working directory.
      (John Arbash Meinel)

    * run_bzr_subprocess() can take an optional 'env_changes={}' parameter,
      which will update os.environ inside the spawned child. It also can
      take a 'universal_newlines=True', which helps when checking the output
      of the command. (John Arbash Meinel)

    * Refactor SFTP vendors to allow easier re-use when ssh is used. 
      (Andrew Bennetts)

    * Transport.list_dir() and Transport.iter_files_recursive() should always
      return urlescaped paths. This is now tested (there were bugs in a few
      of the transports) (Andrew Bennetts, David Allouche, John Arbash Meinel)

    * New utility function symbol_versioning.deprecation_string. Returns the
      formatted string for a callable, deprecation format pair. (Robert Collins)

    * New TestCase helper applyDeprecated. This allows you to call a callable
      which is deprecated without it spewing to the screen, just by supplying
      the deprecation format string issued for it. (Robert Collins)

    * Transport.append and Transport.put have been deprecated in favor of
      .append_bytes, .append_file, .put_bytes, and .put_file. This removes the
      ambiguity in what type of object the functions take.
      Transport.non_atomic_put_{bytes,file} has also been added. Which works
      similarly to Transport.append() except for SFTP, it doesn't have a round
      trip when opening the file. Also, it provides functionality for creating
      a parent directory when trying to create a file, rather than raise
      NoSuchFile and forcing the caller to repeat their request.
      (John Arbash Meinel)

    * WorkingTree has a new api ``unversion`` which allow the unversioning of
      entries by their file id. (Robert Collins)

    * WorkingTree.pending_merges is deprecated.  Please use the get_parent_ids
      (introduced in 0.10) method instead. (Robert Collins)

    * WorkingTree has a new lock_tree_write method which locks the branch for
      read rather than write. This is appropriate for actions which only need
      the branch data for reference rather than mutation. A new decorator
      needs_tree_write_lock is provided in the workingtree module. Like the
      needs_read_lock and needs_write_lock decorators this allows static 
      declaration of the locking requirements of a function to ensure that
      a lock is taken out for casual scripts. (Robert Collins)

    * All WorkingTree methods which write to the tree, but not to the branch
      have been converted to use ``needs_tree_write_lock`` rather than 
      ``needs_write_lock``. Also converted is the revert, conflicts and tree
      transform modules. This provides a modest performance improvement on 
      metadir style trees, due to the reduce lock-acquisition, and a more
      significant performance improvement on lightweight checkouts from 
      remote branches, where trivial operations used to pay a significant 
      penalty. It also provides the basis for allowing readonly checkouts.
      (Robert Collins)

    * Special case importing the standard library 'copy' module. This shaves
      off 40ms of startup time, while retaining compatibility. See:
      ``bzrlib/`` for more details. (John Arbash Meinel)

    * WorkingTree has a new parent class MutableTree which represents the 
      specialisations of Tree which are able to be altered. (Robert Collins)

    * New methods mkdir and put_file_bytes_non_atomic on MutableTree that
      mutate the tree and its contents. (Robert Collins)

    * Transport behaviour at the root of the URL is now defined and tested.
      (Andrew Bennetts, Robert Collins)


    * New test helper classs MemoryTree. This is typically accessed via
      ``self.make_branch_and_memory_tree()`` in test cases. (Robert Collins)
    * Add start_bzr_subprocess and stop_bzr_subprocess to allow test code to
      continue running concurrently with a subprocess of bzr. (Andrew Bennetts,
      Robert Collins)

    * Add a new method ``Transport.get_smart_client()``. This is provided to
      allow upgrades to a richer interface than the VFS one provided by
      Transport. (Andrew Bennetts, Martin Pool)

GPG key available at: <>.
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