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Differences between revisions 185 and 254 (spanning 69 versions)
Revision 185 as of 2008-07-02 07:37:35
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Editor: Berto
Revision 254 as of 2013-05-24 18:21:05
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Editor: jelmer
Comment: Just provide link to homepage, now restructuredtext support on the wiki is broken
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Bazaar support for Subversion branches, working trees and repositories
= Bazaar support for Subversion branches, working trees and repositories =
Line 5: Line 3:
.. contents::


bzr-svn is a plugin that allows Bazaar_ direct access to Subversion_
bzr-svn is a plugin that allows Bazaar direct access to Subversion
Line 14: Line 7:
.. _Bazaar:
.. _Subversion:

The plugin can at the moment be used to commit to, pull from, merge from, push
to and view logs of Subversion branches from Bazaar.


The following features are currently present:

- Connecting to remote Subversion repositories over all
  protocols supported by Subversion itself (at present:
  svn://, svn+ssh://, http:// (webdav), file://)
  as well as dump files.

  Checkouts, lightweight checkouts and branching works.

- Integrates well with Bazaar.

- Track Bazaar merges in Subversion. Merged revisions show up
  as ghosts.

- Subversion working copies. Can be modified, queried
  (``bzr status`` on a svn- native working copy created with
  ``svn co`` works) and committed from.

- Committing to Subversion from Bazaar.

- Push Bazaar revisions to Subversion.

- Follow branch copies. Revision history is not
  truncated when a branch was copied in Subversion.

- Efficiently uses network bandwidth.

- Recognizes file metadata (executable bits, symbolic links).

- 'svn-import' command with functionality similar to svn2bzr_.

.. _svn2bzr:

- Ability to track merges done with SVK_ and write merges from SVK/Subversion branches in a format understandable by SVK.

.. _SVK:

- Generates consistent file ids and revision ids. Two branches made using
  this plugin of the same Subversion branch will result in *exactly* the same
  Bazaar branch.

- Handles complex operations in Subversion: committing to two branches at
  once, upgrading directories to branches, copies from early revisions, ...

- Tested on Linux, Windows and Mac OS X.


bzr-svn can be used through the regular Bazaar user interface, see the
`Bazaar Documentation Overview`_ for documentation on that.

.. _Bazaar Documentation Overview: Documentation

Some bzr-svn specific issues are answered by the FAQ_.

.. _FAQ:

The way Bazaar metadata is stored in Subversion and the other way around is specified in the `mapping specification`_.

.. _mapping specification: BzrForeignBranches/Subversion/mapping

Please use the `regular Bazaar channels for support`_ for questions about bzr-svn.

.. _regular Bazaar channels for support: BzrSupport


Unsupported Subversion File Properties

Some Subversion properties can currently not be represented in Bazaar and are
therefore ignored for the time being:

- 'svn:ignore' is not imported. There should be a `Repository.get_ignores(revid)` call in
  Bazaar rather than a magic '.bzrignore' file.
  Spec at

- 'svn:mime-type'

- 'svn:eol-style'. Requires eol support in Bazaar.

- 'svn:keywords'. Requires keywords support in Bazaar. Spec at `#81463 <>`_

- 'svn:externals'. Externals should be mapped to Bazaar 'by-reference'
  nested branches and the other way around. This can't be implemented
  this until Bazaars nested branch support lands. AaronBentley's work
  in progress is at
  This has been delayed until after 0.9 because of required repository
  format changes.

Other features currently held back by Bazaars feature set:

- Horizon revision history. Most of the existing Subversion repositories are quite large and it would therefore be nice to be able to limit the amount of history that needs to be retrieved during checkouts. Subversion supports horizon history fine.
  . Spec at

- Tracking copies.
  . Spec at

- Showing SVN merges as merges in Bazaar.
  . Requires support for cherry-picking. Spec at

Bazaar Commands

Most Bazaar commands should work fine with Subversion branches. The following commands at the moment do not:

 - bzr uncommit
 - bzr push --overwrite


* 0.4.10_ (works with Bazaar 1.4 and 1.5)
* 0.4.9_ (works with Bazaar 1.3)
* 0.4.8_ (works with Bazaar 1.2)
* 0.4.7_ (works with Bazaar 1.0 and 1.1)
* 0.4.6_ (works with Bazaar 1.0 and 1.1)
* 0.4.5_ (works with Bazaar 1.0 and higher)
* 0.4.4_ (works with Bazaar 0.92 and higher)
* 0.4.3_ (works with Bazaar 0.90 and higher)
* 0.4.2_ (works with Bazaar 0.90 and higher)
* 0.4.1_ (works with Bazaar 0.90 and higher)
* 0.4.0_ (works with Bazaar 0.19 and higher)
* 0.3.5_ (works with Bazaar 0.18 and higher)
* 0.3.4_ (works with Bazaar 0.17 and higher)
* 0.3.3_ (works with Bazaar 0.16 and higher)
* 0.3.2_ (works with Bazaar 0.15 and higher)
* 0.3.1_ (works with Bazaar 0.14 and higher)
* 0.3_ (works with Bazaar 0.14 and higher)
* 0.2_ (works with Bazaar 0.13 and higher)
* 0.1_ (works with Bazaar 0.8 and higher)

.. _0.4.10:
.. _0.4.9:
.. _0.4.8:
.. _0.4.7:
.. _0.4.6:
.. _0.4.5:
.. _0.4.4:
.. _0.4.3:
.. _0.4.2:
.. _0.4.1:
.. _0.4.0:
.. _0.3.5:
.. _0.3.4:
.. _0.3.3:
.. _0.3.2:
.. _0.3.1:
.. _0.3:
.. _0.2:
.. _0.1:



At least on Debian Etch, BzrSvn did not work with Python2.4; use Python2.5.


You will need a recent version of Bazaar, usually the release of Bazaar
released in the same month as the release of bzr-svn you are using. bzr-svn
will warn if the Bazaar release used is too old or too new.


If you are using Python 2.4, you will need to have the pysqlite module installed. Python 2.5 and higher have sqlite support built in.

Python-Subversion >= 1.5
The plugin requires a couple of fixes to the Python bindings for Subversion that are only available in Subversion 1.5 and higher. Subversion 1.5 has not been released yet, but packages with the appropriate patches applied to older versions are available for some platforms.

Building from source
Subversion 1.5 and 1.6 (trunk) contain the required fixes. To compile Subversion from trunk, run:


  $ svn export svn
  $ ./ --release
  $ ./configure
  $ make
  $ make check-swig-py
  $ sudo make install install-swig-py

Patches for Subversion 1.3.x and 1.4.x are also available:

 - `Patch against Subversion 1.3.2 <>`_
 - `Patch against Subversion 1.4.0 <>`_ (tested with Subversion 1.4.0-1.4.6)

To build a fixed version of Subversion's Python bindings using one of these patches, run:


  $ wget
  $ tar xvfj subversion-1.4.3.tar.bz2
  $ cd subversion-1.4.3
  $ patch -p1 < subversion-1.4.0-metze-python-bindings.patch
  $ ./ --release
  $ ./configure
  $ make
  $ make check-swig-py
  $ sudo make install install-swig-py

Please note that the patches against Subversion 1.3.2 and 1.4.0 don't include the `fix for a major memory leak in python-subversion`_.

.. _`fix for a major memory leak in python-subversion`:

Windows Setup
An unofficial bzr-svn installer for Win32 as well as an unofficial, patched build of Python-Subversion for Windows can be found at This package can be used with the Python-based installer or the standalone installation of Bazaar.

Debian/Ubuntu packages with the required fixes backported are available in Ubuntu since Edgy and Debian since Etch. You need the `python-subversion <>`_ and `libsvn0 <>`_ packages.

Fedora 9 (i386)
Fedora 9 (i386) users may obtain Subversion RPMs built with the patch from .

GoboLinux includes `a recipe <>`_ for bzr-svn.

Mac OS X

From Source

To install on OS X Leopard do something like the following. Note: If you have MacPython installed, you may encounter problems when building BzrSvn.


  # Install the latest stable Bazaar (if you didn't already)
  sudo easy_install -U paramiko pycrypto bzr

  # Install the bzr_svn plugin
  mkdir ~/.bazaar ~/.bazaar/plugins
  cd ~/.bazaar/plugins
  rm -rf svn
  bzr checkout --lightweight \ svn


If the above instructions don't work on Tiger, try the following:


  # Install the latest stable Bazaar (if you didn't already)
  sudo easy_install -U paramiko pycrypto bzr
  # Compile Subversion 1.5 (for better python support)
  cd /tmp
  rm -rf svn
  svn export svn
  cd svn
  curl | tar xz
  ln -sf neon-0.27.2 neon
  ./configure --without-apxs --with-ssl --prefix=$HOME/.bazaar/svn
  make install install-swig-py
  cd ..
  # Install the bzr_svn plugin
  mkdir ~/.bazaar ~/.bazaar/plugins
  cd ~/.bazaar/plugins
  rm -rf svn
  bzr checkout --lightweight \ svn
  # The following is a temporary patch - it will core-dump without it,
  # but disables any support for authenticating
  perl -p -i -e 's/(providers \+\= auth\.Subversion)/\#$1/g' svn/
  perl -p -i -e 's/(providers \+\= \[auth\.get)/\#$1/g' svn/

  # Setup your profile to recognize subversion 1.5
  echo >> ~/.profile << \EOF
  alias bzr="DYLD_LIBRARY_PATH=$HOME/.bazaar/svn/lib \
  PYTHONPATH=$HOME/.bazaar/svn/lib/svn-python \
  . ~/.profile

  # Test bzr + svn w/ ssl
  cd /tmp
  rm -rf test
  bzr branch test

* If you updated XCode to 2.5, your libtool is broken. Installing libtool from macports solve this problem.

Using (release candidate) installer

Download the latest Subversion DMG from:

After installing, add the svn-python bindings to your Python2.5 installation


  # Tiger
  echo "/opt/subversion-1.5.x/lib/svn-python/" > /Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/subversion.pth

  # Leopard
  echo "/opt/subversion-1.5.x/lib/svn-python/" > /System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/site-packages/subversion.pth

Install the bzr_svn plugin following the instructions in the `From Source`_ section (a DMG is coming soon ;) )


In order to be able to use the ``svn-upgrade`` command (for those
who used versions of bzr-svn older than 0.4.0), you will need the `bzr-rebase`_

.. _bzr-rebase:


Debian/Ubuntu packages are available from `Jelmer's Debian repository`_.

.. _Jelmer's Debian repository:

Ubuntu's in-development release and Debian sid usually also contain the latest release.

OpenSuse packages created by Michael Wolf are available from

Installation instructions for Fedora/RedHat are on

An unofficial Gentoo overlay containing the patches for Subversion versions 1.3 and 1.4, plus a bzr-svn ebuild are hosted on launchpad at


Please file bug reports in launchpad. The product URL for bzr-svn is


* (stable release series, this is where most development happens)
* (old stable release series)
* (bleeding edge, may break existing imports every now and then)

Unit testing
To run the bzr-svn testsuite, simply run 'bzr selftest svn'

bzr-svn was written by JelmerVernooij_ with the help from various other people. See the AUTHORS file in the source distribution for a list.

.. _JelmerVernooij:

 vim: ft=rest

Bazaar support for Subversion branches, working trees and repositories

bzr-svn is a plugin that allows Bazaar direct access to Subversion repositories. It allows most bzr commands to work directly against Subversion repositories, as if you were using bzr with a native bzr repository.