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hgsubversion is a Mercurial extension for working with Subversion repositories.

Project description

hgsubversion is an extension for Mercurial that allows using Mercurial as a Subversion client.

At this point, hgsubversion is usable by users reasonably familiar with Mercurial as a VCS. It’s not recommended to dive into hgsubversion as an introduction to Mercurial, since hgsubversion “bends the rules” a little and violates some of the typical assumptions of early Mercurial users.


You need to have Subversion installed with the SWIG Python bindings from Subversion 1.5 or later. You need Mercurial 1.3 or later.

If you are unfamiliar with installing Mercurial extensions, please see the UsingExtensions page in the Mercurial wiki. Look at the example for specifying an absolute path near the bottom of the page. You want to give the path to the top level of your clone of this repository.

Before using hgsubversion, I strongly encourage you to run the automated tests. Just use nose if you have it (or easy_install nose if you want it), or use python tests/ to run the suite with the conventional test runner. Note that because I use nose, there’s a lot of stdout spew in the tests right now. The important part is that all the tests pass.

Basic Use

Get a new clone of an svn server:

$ hg clone <svn URI> [destination]

Real example:

$ hg clone nose-hg

Note, you should pull from the root subversion directory, not specific folders (such as trunk).

Pull new revisions into an already-converted repo:

$ hg pull

For more information, see hg help svn while in a converted repo.

Support for svn:externals

All svn:externals properties are serialized into a single .hgsvnexternals file, with the following syntax:


A header line gives the directory the property applies on, ‘.’ for the project root directory. The property content follows, every line being prefixed by a single space.

The creation or modification of this file will trigger svn:externals updates on the related subversion repository.

Project details

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