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| Repository: https://roy.marples.name/hg/hg-fastimport (Updates to work with Mercurial 5.6+ and Python 3.9+) |
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| * Bazaar also has [[http://bazaar-vcs.org/BzrFastImport|a similar plugin]]; in fact, much of the code in `hg-fastimport` originated with Bazaar (credit to Ian Clatworthy) | |
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| This assumes you're running on a Unix-like OS. Windows users are on their own for now. 1. Get the `pyfastimport` library that `hg-fastimport` depends on: {{{ hg clone http://vc.gerg.ca/hg/pyfastimport/ }}} (Note that the canonical source of `pyfastimport` is a Bazaar branch on launchpad.net, since it's derived from Bazaar code. If you want to contribute patches to `pyfastimport`, start here: `bzr branch lp:~gward/bzr-fastimport/reusable pyfastimport`. 1. (Optional) Run `pyfastimport`'s test suite: {{{ (cd pyfastimport && ./runtests.py) }}} 1. Get `hg-fastimport` {{{ hg clone http://vc.gerg.ca/hg/hg-fastimport/ }}} 1. Ensure that Python can find the `fastimport` package: {{{ PYTHONPATH=/path/to/pyfastimport ; export PYTHONPATH python -c "import fastimport ; print fastimport" # should not crash }}} 1. Enable the extension by adding this line to `[extensions]` in `~/.hgrc`: {{{ fastimport = /path/to/hg-fastimport/hgfastimport |
{{{ $ pip install --user hg-fastimport |
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| (where `/path/to/hg-fastimport` is the directory created by the clone operation). Sorry this is all so cumbersome. The code is still under active development, and I have not spent much time on installation details. |
== Configuration == Enable the extension by adding this line to `[extensions]` in `~/.hgrc`: {{{ fastimport = }}} |
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| Support for "blobs" (a way of specifying file contents independently of commits) is, as of 31 March 2009, brand-new and only lightly tested. |
fastimport Extension
This extension is not distributed with Mercurial.
Author: Paul Crowley
Author: Ian Clatworthy (parser code borrowed from Bazaar)
Author: Greg Ward (current maintainer)
Repository: http://hg.gerg.ca/hg-fastimport/
Repository: https://bitbucket.org/gward/hg-fastimport/
Repository: https://bitbucket.org/danielj7/hg-fastimport/ (Updates to work with Mercurial 3.2+)
Repository: https://roy.marples.name/hg/hg-fastimport (Updates to work with Mercurial 5.6+ and Python 3.9+)
Overview
The "fast import" format originates with Git, where it is used as the generic backend for converting other SCM repositories to git. It's generic enough that it can be used to feed a Mercurial repository as well, and that's what this extension does: read a "fast import" stream and turn it into changesets in a Mercurial repository. The potential of this extension is that any foreign SCM that can be converted to Git can also be converted to Mercurial, regardless of the capabilities of Mercurial's own ConvertExtension. The catch is that the conversion is a little cumbersome: first convert to a fast-import dump, then feed that dump to Mercurial.
Links:
the definitive documentation for the format is the git-fast-import man page
Setup
$ pip install --user hg-fastimport
Configuration
Enable the extension by adding this line to [extensions] in ~/.hgrc:
fastimport =
Usage
Usage is simple:
hg fastimport FILE ...
reads a fast-import stream from each FILE and adds changesets to the current repository. For example, to create a brand-new repository from foo.git-dump:
hg init foo.hg hg -R foo.hg fastimport foo.git-dump
Limitations and caveats
There are some commands in the fast-import language that are not supported by hg-fastimport. You'll know them when you see them; Mercurial will crash with an exception.