SVN to GIT Migration Script

Background

Atlassian's SVN-to-GIT migration guide is a very good guide on how to migrate your SVN repository to Git. However, it's not been kept up to date and there are (in some cases) some very serious issues with it.

This is an attempt at easing / alleviating some headaches while traveling down the road, less traveled.

Usage

Prerequisites

• Run under a Linux environment (both the program and the installer will hard quit, if run under anything else)
• Install command-line tools for git (at least v2.25.1) and subversion (at least v1.13.0)
• Install "git-svn bridge" git-svn (at least v2.25.1, it's most likely not installed with the git cli)
• Install cli tools for development
  • On Debian/Ubuntu: sudo apt install -y make gcc shc

Installation

Package the binary and install script by running make in the root directory of the project, then running ./target/install.sh.

Run

On your first run, you'll be asked to enter SVN login credentials. These will be stored in a file in the /opt directory.
On each run, this file will be read and the credentials will be used to authenticate with the SVN server.
Print usage by running:

svn-to-git help

Known Issues

Jan 21st, 2023

The export_authors profile might not work properly, the SVN log command is a little buggy when authenticating in version 1.13.0. If export_authors fails, I highly recommend creating the authors_export.txt file manually. This can be done by running the incantation:

svn log {{SVN_SERVER_URL}} --quiet | grep "^r" | awk '{print $3}' | sort | uniq > /tmp/svn-to-git/authors_export.txt

This may take a while, depending on the size of your SVN repo, but ultimately it will create a file in the /tmp/svn-to-git directory called authors_export.txt. This file will be used automatically by the profiles.