GDPR compliance in Git isn’t optional. Repositories become accidental data vaults. Commit histories store names, IDs, IPs, and messages forever unless they’re scrubbed. Even private repos are not a safe harbor. Once personal data lands in version control, it can be cloned, forked, mirrored, and archived without warning.
The regulation is crystal clear: personal data must be handled with purpose, minimized, and removed on request. Git doesn’t forget by design, so you have to enforce that discipline with process and tooling. A compliant workflow means more than a privacy policy. It means audits, automated scans, and strict commit hooks.
Start with detection. Scan your repositories for accidental leaks — secrets, email addresses, personal identifiers. Use pre-commit hooks to block commits containing personal data. Prevent private fields from ever getting staged. Pair this with CI/CD checks that fail builds when violations slip through.
Next, master history rewriting. Tools like git filter-repo or BFG Repo-Cleaner make it possible to surgically remove sensitive files and patterns from all commits. Combine this with force-push policies and mirrored repository updates to ensure no old copies remain online. GDPR requires full erasure on request, not just file deletes in the latest branch.