x2d - convert git, bzr or hg repos to a darcs one using fast-export
x2d -f <format> <otherrepo>
x2d is a wrapper script that just automates doing an initial or continuing an incremental conversion. All it does is initializing the target darcs repo, starting darcs-fast-import and the relevant exporter with the proper switches and pipe the importer's output to the importer's standard input.
Display usage.
Specify the format of the source repo. Currently supported sources are git, bzr and hg. Incremental conversion is supported for all of them.