Following the recent announcement that BitBucket will be 'sunsetting' support for Mercurial repositories from 1/6/20 it became fairly urgent for me to find a straightforward solution to migrate my Hg projects over to Git.
I only have a few projects but an automated approach should be less error-prone and able to preserve project metadata where possible. I therefore created a simple tool to handle my migration needs.
This project is a simple Python 3.7 script that makes use of the BitBucket 2.0 API to identify and create new equivalent Git repositories and a Git/Mercurial compatibility addon to do the conversion.
I've used it only in a Cygwin environment on Windows but I tried to keep it fairly generic so hopefully it will work anywhere that Python 3 is installed. I used Python 3.7.4.
It functions approximately as follows:
1) Ensure git and git-remote-hg are available on PATH
2) Connect (authenticate) to BitBucket API
3) Read list of projects for user
4) For each project:
5) If it's not a Mercurial project, skip processing
6) If a Git equivalent project exists already, skip processing
7) Create Git equivalent project on BitBucket
8) Clone project locally using git clone --mirror with hg:: prefix
9) Push local project to new git remote using git push --mirror
For the authentication (2) you should set up a temporary App Password (under your account > Settings > Access Management > App Passwords) with 'Admin' access to your repositories. You can easily revoke this when done. I used the following configuration:
The script can be found in a Git project bitbucket-hg-to-git and is dedicated to the community. Please feel free to modify it for your own needs or even raise issues and pull-requests if necessary.
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