mirror of
https://github.com/frej/fast-export.git
synced 2026-01-22 06:02:03 +01:00
61bb1cb707
As one usually mirrors a git repo based on the same hg repo, it's annoying having to specify the hg repo url all the time. Since we intentionally stored the url in the state file already, use in the shell wrapper and default to it. 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.