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This release of Bazaar adds a new repository format, ``1.9``, with smaller
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and more efficient index files. This format can be specified when
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creating a new repository, or used to losslessly upgrade an existing
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repository. bzr 1.9 also speeds most operations over the smart server
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protocol, makes annotate faster, and uses less memory when making
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checkouts or pulling large amounts of data.
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* Fix "invalid property value 'branch-nick' for None" regression with
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branches bound to svn branches. (Martin Pool, #293440)
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* Fix SSL/https on Python2.6. (Vincent Ladeuil, #293054)
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* ``SFTPTransport.readv()`` had a bug when requests were out-of-order.
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This only triggers some-of-the-time on Knit format repositories.
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(John Arbash Meinel, #293746)
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* New Branch hook ``transform_fallback_location`` allows a function to
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be called when looking up the stacked source. (Michael Hudson)
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* New repository formats ``1.9`` and ``1.9-rich-root``. These have all
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the functionality of ``1.6``, but use the new btree indexes.
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These indexes are both smaller and faster for access to historical
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information. (John Arbash Meinel)
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* ``BTreeIndex`` code now is able to prefetch extra pages to help tune
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the tradeoff between bandwidth and latency. Should be tuned
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appropriately to not impact commands which need minimal information,
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but provide a significant boost to ones that need more context. Only
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has a direct impact on the ``--development2`` format which uses
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btree's for the indexes. (John Arbash Meinel)
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* ``bzr dump-btree`` is a hidden command introduced to allow dumping
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the contents of a compressed btree file. (John Arbash Meinel)
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* ``bzr pack`` now tells the index builders to optimize for size. For
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btree index repositories, this can save 25% of the index size
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(mostly in the text indexes). (John Arbash Meinel)
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* ``bzr push`` to an existing branch or repository on a smart server
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is faster, due to Bazaar making more use of the ``get_parent_map``
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RPC when querying the remote branch's revision graph.
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* default username for bzr+ssh:// and sftp:// can be configured in
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authentication.conf. (Aaron Bentley)
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* launchpad-login now provides a default username for bzr+ssh and SFTP
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URLs, allowing username-free URLs to work for everyone. (Aaron Bentley)
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* ``lp:`` lookups no longer include usernames, making them shareable and
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shorter. (Aaron Bentley)
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* New ``PackRepository.autopack`` smart server RPC, which does
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autopacking entirely on the server. This is much faster than
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autopacking via plain file methods, which downloads a large amount
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of pack data and then re-uploads the same pack data into a single
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file. This fixes a major (although infrequent) cause of lengthy
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delays when using a smart server. For example, pushing the 10th
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revision to a repository with 9 packs now takes 44 RPCs rather than
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179, and much less bandwidth too. This requires Bazaar 1.9 on both
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the client and the server, otherwise the client will fallback to the
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slower method. (Andrew Bennetts)
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* A failure to load a plugin due to an IncompatibleAPI exception is
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now correctly reported. (Robert Collins, #279451)
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* API versioning support now has a multiple-version checking api
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``require_any_api``. (Robert Collins, #279447)
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* ``bzr branch --stacked`` from a smart server to a standalone branch
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works again. This fixes a regression in 1.7 and 1.8.
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(Andrew Bennetts, #270397)
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* ``bzr co`` uses less memory. It used to unpack the entire WT into
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memory before writing it to disk. This was a little bit faster, but
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consumed lots of memory. (John Arbash Meinel, #269456)
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* ``bzr missing --quiet`` no longer prints messages about whether
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there are missing revisions. The exit code indicates whether there
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were or not. (Martin Pool, #284748)
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* Fixes to the ``annotate`` code. The fast-path which re-used the
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stored deltas was accidentally disabled all the time, instead of
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only when a branch was stacked. Second, the code would accidentally
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re-use a delta even if it wasn't against the left-parent, this
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could only happen if ``bzr reconcile`` decided that the parent
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ordering was incorrect in the file graph. (John Arbash Meinel)
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* "Permission denied" errors that occur when pushing a new branch to a
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smart server no longer cause tracebacks. (Andrew Bennetts, #278673)
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* Some compatibility fixes for building the extensions with MSVC and
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for python2.4. (John Arbash Meinel, #277484)
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* The index logic is now able to reload the list of pack files if and
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index ends up disappearing. We still don't reload if the pack data
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itself goes missing after checking the index. This bug appears as a
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transient failure (file not found) when another process is writing
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to the repository. (John Arbash Meinel, #153786)
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* ``bzr switch`` and ``bzr bind`` will now update the branch nickname if
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it was previously set. All checkouts will now refer to the bound branch
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for a nickname if one was not explicitly set.
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(Marius Kruger, #230903)
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* Improved hook documentation. (Michael Ernst)
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* commands.plugins_cmds is now a CommandRegistry, not a dict.
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* New AuthenticationConfig.set_credentials method allows easy programmatic
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configuration of authetication credentials.
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