Ignore commits in Git Blame with --ignore-revs-file

Today I learned that you can ignore commits in Git blame on Github with a .git-blame-ignore-revs file in the root of your repo!

I’d known about the git config blame.ignoreRevsFile config option where you can point it to a file with a list of commit IDs to ignore which is especially useful for those annoying commits in a repo where whitespace was cleaned up or every tab in the codebase was replaced with spaces. You have to run the config command locally but now apparently Github does it automatically.

I also learned you can include comments in the file like:

# Run this command to always ignore formatting commits in `git blame`
# git config blame.ignoreRevsFile .git-blame-ignore-revs

# Changed everything to tabs
a926bba49c89a5b882cd298be3af2570b1e6252c

# Fixed all the formatting errors
5e78fdc6eac01e4e730046dc2811fbb78157a154