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Now this can even be used as a module from other python scripts by simply calling the hg2git() function. Except some config values nobody really ever wants to change, it's even save to run several hg2git() functions in parallel as no global vars or the like are used by intention (but it makes the code uglier). Signed-off-by: Rocco Rutte <pdmef@gmx.net>
hg2git.(sh|py) - mercurial to git converter using git-fast-import Legal ===== The scripts are licensed under the GPL version 2 and were written by Rocco Rutte <pdmef@gmx.net> with hints and help from the git list and #mercurial on freenode. Usage ===== Using it is quite simple for a mercurial repository <repo>: mkdir repo-git # or whatever cd repo-git git init hg2git.sh <repo> Incremental imports to track hg repos is supported, too. Notes ===== As each git-fast-import run creates a new pack file, it may be required to repack the repository quite often for incremental imports (especially when importing a small number of changesets per incremental import). Design ====== hg2git.py was designed in a way that doesn't require a 2-pass mechanism or any prior repository analysis: if just feeds what it finds into git-fast-import. This also implies that it heavily relies on strictly linear ordering of changesets from hg, i.e. its append-only storage model so that changesets hg2git already saw never get modified. Import and SHA stability ======================== Currently it's only supported to map one hg repository to one git repository. However, all forks of a hg repo can be imported into one git repo each and then merged together (e.g. as different branches in the final git repo) since the checksums are stable, i.e. one particular hg changeset always produces the same git SHA1 checksum.