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https://github.com/felipec/git-remote-hg

Transparent bidirectional bridge between Git and Mercurial for Git
https://github.com/felipec/git-remote-hg

Last synced: about 2 months ago
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Transparent bidirectional bridge between Git and Mercurial for Git

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README 

        
`git-remote-hg` is the semi-official Mercurial bridge from the Git project, once

installed, it allows you to clone, fetch and push to and from Mercurial

repositories as if they were Git ones:



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git clone "hg::http://selenic.com/repo/hello"

--------------------------------------



To enable this, simply add the `git-remote-hg` script anywhere in your `$PATH`:



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curl https://raw.githubusercontent.com/felipec/git-remote-hg/master/git-remote-hg -o ~/bin/git-remote-hg

chmod +x ~/bin/git-remote-hg

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That's it :)



Obviously you will need Mercurial installed.



== Configuration ==



If you want to see Mercurial revisions as Git commit notes:



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% git config core.notesRef refs/notes/hg

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If you are not interested in Mercurial permanent and global branches (aka.

commit labels):



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% git config --global remote-hg.track-branches false

--------------------------------------



With this configuration, the 'branches/foo' refs won't appear.



If you want the equivalent of `hg clone --insecure`:



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% git config --global remote-hg.insecure true

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If you want `git-remote-hg` to be compatible with `hg-git`, and generate exactly

the same commits:



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% git config --global remote-hg.hg-git-compat true

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== Notes ==



Remember to run `git gc --aggressive` after cloning a repository, especially if

it's a big one. Otherwise lots of space will be wasted.



The newest supported version of Mercurial is 6.2, the oldest one is 4.0.



=== Pushing branches ===



To push a branch, you need to use the 'branches/' prefix:



--------------------------------------

% git checkout branches/next

# do stuff

% git push origin branches/next

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All the pushed commits will receive the "next" Mercurial named branch.



*Note*: Make sure you don't have `remote-hg.track-branches` disabled.



=== Cloning HTTPS ===



The simplest way is to specify the user and password in the URL:



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git clone hg::https://user:[email protected]/user/repo

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You can also use the https://mercurial-scm.org/wiki/SchemesExtension[schemes extension]:



--------------------------------------

[auth]

bb.prefix = https://bitbucket.org/user/

bb.username = user

bb.password = password

--------------------------------------



Finally, you can also use the

https://pypi.org/project/mercurial_keyring[keyring extension].



=== Caveats ===



The only major incompatibility is that Git octopus merges (a merge with more

than two parents) are not supported.



Mercurial branches and bookmarks have some limitations of Git branches: you

can't have both 'dev/feature' and 'dev' (as Git uses files and directories to

store them).



Multiple anonymous heads (which are useless anyway) are not supported: you

would only see the latest head.



Closed branches are not supported: they are not shown and you can't close or

reopen. Additionally in certain rare situations a synchronization issue can

occur (https://github.com/felipec/git/issues/65[Bug #65]).



Limitations of Git's https://git-scm.com/docs/gitremote-helpers[remote-helpers]

framework apply.



== Other projects ==



There are other `git-remote-hg` projects out there, but this is the original,

which was distributed officially in the Git project.



Over the years many similar tools have died out, the only actively maintained

alternative is mnauw's fork of this project:

https://github.com/mnauw/git-remote-hg[mnauw/git-remote-hg]. I've merged some of

his patches, and he has merged some of my patches, so the projects are mostly in

sync, but not quite. In particular Nauwelaerts' fork has many administrative

extensions, which although useful to some people, I don't believe they belong

in the core.



For a comparison between these and other projects go

https://github.com/felipec/git/wiki/Comparison-of-git-remote-hg-alternatives[here].



== Contributing ==



Send your patches to the mailing list [email protected] (no need to

subscribe).