mercurial to git converter using git-fast-import

 hg-fast-export tool allows incremental import of mercurial repositories
 to git repositories.
 .
 It can automatically import a local hg repo into a local git repo using
 just one command. Subsequent importing of new changesets is supported.
 .
 Included git-hg wrapper script can be used to transparently track Mercurial
 repositories without a separate checkout. It also includes experimental
 support for pushing back to Mercurial.