Converting Mercurial folder to a Git repository

On Linux or anything with bash/sh or similar, or python, try with fast export:

cd
git clone git://repo.or.cz/fast-export.git
git init git_repo
cd git_repo
~/fast-export/hg-fast-export.sh -r /path/to/old/mercurial_repo
git checkout HEAD

Windows: TortoiseHG Hg-Git extension

Hg-Git can be used to convert a Mercurial repository to Git. You can use a local repository or a remote repository accessed via SSH, HTTP or HTTPS.

Example of local repositories conversion.

1. Install Hg-Git.

   • On Windows, TortoiseHg comes with Hg-Git, though you need to enable it via the setting tool (in extensions section)

     

     or manually in ~/mercurial.ini

     [extensions]
     hggit =
     

2. Use the following commands to convert the repository:

   $ mkdir git-repo; cd git-repo; git init; cd ..
   $ cd hg-repo
   $ hg bookmarks hg
   $ hg push ../git-repo
   

The hg bookmark is necessary to prevent problems as otherwise hg-git pushes to the currently checked out branch confusing Git. This will create a branch named hg in the Git repository. To get the changes in master use the following commands (only necessary in the first run, later just use git merge or rebase):

$ cd git-repo
$ git checkout -b master hg

You can (from Mercurial side):

• using Convert extension with --filemap option convert part of original repo into smaller with only needed files|directories
• with hg-git extension push stripped repo to Git

or (instead of hg-git), using Mercurial bridge in Git, clone|pull repository from Git

Gitify

Seems as a more modern and easy to use alternative to perform the conversion https://github.com/buchuki/gitifyhg

pip install gitifyhg
git clone gitifyhg::<hgrepoaddress>
# done, you have a git repo with the entire history of the hg one

Convert a Mercurial repository to Git on Windows 10

If no problem with encoding - use TortoiseHG Hg-Git extension

md new-repo && cd new-repo
git init --bare .git
cd ..\old-mercurial-repo
hg bookmark -r default master
hg push ..\new-repo
cd ..\new-repo
git config --bool core.bare false

If something wrong with encoding - use fast-export

Install Bash

Open PowerShell as Administrator and run:

Enable-WindowsOptionalFeature -Online -FeatureName Microsoft-Windows-Subsystem-Linux

Install Ubuntu 16.04 LTS from Microsoft Store

Open Bash and run

install mercurial

sudo -s
apt-get update
apt install mercurial

get fast-export v180317 (at the moment versions after 180317 does not work correctly)

cd /mnt/c/path_to_work_folder
git clone https://github.com/frej/fast-export.git
cd fast-export
git checkout tags/v180317
cd ..

convert repository

git init new-repo && cd new-repo
git config core.ignoreCase false && git config core.quotepath off
../fast-export/hg-fast-export.sh -r ../path_to_mercurial_repo/ --fe cp1251
git checkout master

encoding options:

• -f encoding, like -f cp1251
• --fe file name encoding like --fe cp1251