What does git filter-repo do?

• A. It converts repository formats.
• B. It creates backups automatically.
• C. It removes passwords or renaming of specific files or file sets.
• D. It integrates with issue trackers.

Answer: (C)

git filter-repo is a tool for rewriting history in a Git repository. It lets you surgically modify commits and the repository’s trees, which is especially useful for scrubbing sensitive data or reorganizing the project layout. You can remove passwords, secrets, or entire sets of files from past commits, and you can rename or relocate files or directories across the entire history. This capability is what makes it the go-to solution for cleaning up a repo after secrets were committed or when you need to change how certain files are stored, without changing the current working state. It’s faster and more flexible than older methods for history rewrites, and it isn’t primarily designed for converting repository formats, automating backups, or integrating with issue trackers, which is why those options don’t fit as well.