Converting Repositories

Your first option should probably be the ConvertExtension bundled with Mercurial. It supports branches, incremental imports, and a few other nice features, and is maintained by the Mercurial authors. It currently only understands CVS, subversion, Darcs and git.

Otherwise, the following tools may be useful.


1. Arch / TLA / Baz 1.5

The ConvertExtension supports GNU Arch since (df659eb23360, 0.9.5+)

Other tools for Arch conversion can be found at ArchConversion.

2. Bazaar?

3. ClearCase

4. CVS

Multiple convertors exist for converting from CVS to Mercurial:

Note: If ["ConvertExtension"] fails to import your repository, try using [ cvs2svn] to convert first to Subversion, and then import from Subversion. The cvs2svn converter correctly handles a number of cases that the direct cvsps-based converter gets confused on.

You can also convert from Mercurial to CVS:

5. Darcs

The ConvertExtension supports Darcs.

An older sample Darcs conversion script is available in the contrib/ directory of the Mercurial source.

Also see ["Tailor"].

6. Git

See GitConversion (incremental).

7. Subversion

The ConvertExtension included in Mercurial 0.9.5 can import Subversion trees. It uses the Subversion API, so it can speak any Subversion repository access protocol.

Examples and details about Subversion interoperability can be found in WorkingWithSubversion.

Converters that work on local repositories or data (faster, if this is an option for you):

Converters that work on remote repositories:

Syncing tools:

8. Perforce

[ p4_to_hg]

This utility can actually keep two repositories in sync.

Currently, it's slapped together and built to serve my particular needs, but it could probably be modified into something more general. It currently makes no attempt to do anything with Perforce's ability to track branches or the movement of changesets from branch to branch. -- EricHopper 2005-09-27 06:31:03

9. Bitkeeper

Because of the threatening behavior of Larry McVoldemort of Bitmover, no Bitkeeper conversion tools have been made publically available. See GenericConversion for details on building your own repository conversion tool.

10. TeamWare

Very experimental conversion script available if you can find nothing better:


11. Other systems

["Tailor"] is a conversion tool that can do simple conversions from a variety of systems. See GenericConversion for details on building your own repository conversion tool.