Git Commit Hash Prefixer

Give your commit hashes leading zeroes!

Inspired by Тsфdiиg's 𝕏 post

Usage

Requires gcc; ./hasher builds the local C helper hasher-helper when needed. The helper uses all available CPU cores by default. Set HASHER_THREADS to cap it.

By default the prefix searched for is at least three leading zeroes 000

./hasher

Giving a valid lowercase hex string as the first option searches for that prefix

./hasher bada55

HASHER_THREADS=4 ./hasher 0000000

Example

Updating hashes of every unpushed local commit

git rebase --exec './hasher 000' origin/master

TODO

• arg to give desired prefix instead of just current hard coded 000
• speed it up using git commit-tree instead of git commit --amend
• speed it up by running spinner in parallel