You need: - svn-all-fast-export (from the Debian/Ubuntu package of the same name; upstream homepage is http://gitorious.org/svn2git, not related to a Ruby tool of the same name) - a copy of the Subversion repository Good thing I have one set up, using svnsync: # http://svnbook.red-bean.com/nightly/en/svn.reposadmin.maint.html#svn.reposad... svnadmin create /stuff/zope-mirror svnadmin setuuid /stuff/zope-mirror 62d5b8a3-27da-0310-9561-8e5933582275 svnsync init file:///stuff/zope-mirror svn://svn.zope.org/repos/main/ svnsync sync file:///stuff/zope-mirror # repeat last command periodically It needs about 3.3 gigs of disk space. - a copy of authors.txt that maps svn usernames to real names and emails (ask Tres or Jim) - an empty repository on Github (ask Tres or Jim to create one at https://github.com/zopefoundation) Speaking of this, could somebody create a zope.dottedname repo? Thanks. The conversion process goes like this: - write a rules.txt like this one I used for zope.dottedname: create repository zope.dottedname end repository # feel free to create multiple repositories in one go # order of matches matters in this file # trailing slashes in match rules are very important match / # skip revisions 129030, 129031 and 129032, since they're empty # in my svn mirror (no files, no committer, no date) for some reason # (bug in svnsync?), and they make svn-all-fast-export segfault min revision 129030 max revision 129032 end match match /(zope\.dottedname)/trunk/ repository \1 branch master end match match /(zope\.dottedname)/branches/([^/]+)/ repository \1 branch \2 end match match /(zope\.dottedname)/tags/([^/]+)/ repository \1 branch refs/tags/\2 end match match / # ignore all other projects end match - run svn-all-fast-export --identity-map=authors.txt --rules=rules.txt --stats \ /path/to/your/zope-svn-mirror - wait a bit The first time I ran it it took ~18 wall clock minutes (~4 CPU minutes) and ended in a segfault. The second run took 12 wall clock minutes (hot disk cache, I suppose) and also ended in a segfault. Then I discovered that if I don't remove the git repository, svn-all-fast-export will resume the process (a few thousand revisions before it crashed, or maybe that just happened to be the last successfully converted commit before the crash), which is considerably faster than starting from scratch. - inspect ./zope.dottedname for sanity I recommend tig as a very nice console-mode interactive git history viewer. For an example of things to inspect, e.g., there was a deleted 3.4.1 tag from http://zope3.pov.lt/trac/changeset/80495, which shouldn't have been deleted, according to http://zope3.pov.lt/trac/changeset/80499, so I've re-created the tag from refs/backups/r80495/tags/3.4.1 that was left by the conversion tool. - upload to github Advantages of svn-all-fast-export - it's fast (<5 CPU minutes for 129128 svn revisions; I wish I had an SSD on the server that hosts my svn mirror) - it can simultaneously convert multiple packages (add more 'create repository/end repository' statements to rules.txt, and extend the match regexps to catch the packages you're interested in) - it's very flexible and can handle gnarly repository history, if you write rules for it - it was written for and used by the KDE project to convert and explode their humongous svn repository into a multitude of git projects, so it's been stress-tested rather well Disadvantages of svn-all-fast-export - it requires a local copy of the entire subversion repository - it doesn't produce error messages if something's wrong, instead it segfaults Incidentally, I'd like to hear reports about conversion speed from people (e.g. Jim ;-) who have used Jim's conversion script. Is 12 minutes fast or slow? zope.dottedname is not a very large package; it had merely 34 revisions in trunk's history. I would also like to offer my services as a git conversion specialist, since I have access to an svn mirror. Ask me for a package by name, and I'll send you a git repository in a few days. It'll be up to you to inspect the fidelity of the conversion, though; I don't have the spare cycles for that. Regards, Marius Gedminas -- http://pov.lt/ -- Zope 3/BlueBream consulting and development