Migrate from SVN to Git

Move your Subversion repository to Git with full commit history, author mapping, and branch preservation — unlocking modern development workflows.

Migration: SVN to Git

From Apache Subversion (SVN) to Git (GitHub/GitLab)

Why Migrate

  • Distributed Workflows: Git's distributed model lets every developer work with a full local copy, enabling offline work, faster operations, and flexible branching strategies.
  • Modern Tooling: Git integrates with GitHub, GitLab, CI/CD pipelines, code review tools, and the entire modern DevOps ecosystem that SVN cannot access.
  • Superior Branching: Git branches are lightweight and fast. Feature branches, release branches, and pull request workflows become practical instead of painful.

Migration Roadmap

  1. SVN Analysis (3–5 days): Analyze SVN repository structure (trunk/branches/tags), author list, commit history size, and any svn:externals dependencies.
    • Repository structure analysis
    • Author mapping file
    • Migration complexity assessment
  2. History Conversion (1–2 weeks): Use git-svn or svn2git to convert the SVN repository to Git, preserving full commit history, branches, tags, and author attribution.
    • Git repository with full history
    • Branch and tag conversion
    • Large file handling with Git LFS
  3. Workflow Setup & Cutover (1 week): Configure Git hosting (GitHub/GitLab), set up branch protection rules, CI/CD pipelines, and onboard the team on Git workflows.
    • Hosted Git repository
    • Branch protection and CI/CD
    • Team training documentation
    • SVN read-only lockdown

Risks & Mitigation

  • SVN history is very large and conversion takes too long: We use incremental migration with git-svn fetch, processing history in batches. For extremely large repos, we offer a clean-cut migration with archived SVN history.
  • svn:externals dependencies break in Git: We replace svn:externals with Git submodules or a monorepo strategy, ensuring all cross-repository dependencies continue to resolve correctly.

Estimated Scope

Hours: 40–100 | Cost: $80–$200 | Timeline: 2–4 weeks

Frequently Asked Questions

Will we lose any commit history?
No. We use git-svn to convert every SVN commit to a Git commit with the original author, date, and message preserved. The full history is maintained.
How do you handle SVN branches and tags?
SVN branches and tags (which are just directory copies) are converted to proper Git branches and lightweight tags with correct ancestry.
Can you migrate multiple SVN repositories?
Yes. We handle bulk migrations, either combining multiple SVN repos into a Git monorepo or creating separate Git repositories for each.