git-blame-ignore-revs: add a file to ignore certain git revisions

[Artturin]

to be able to set the ignoreRevsFile globally we will need the patch in
this email thread https://lore.kernel.org/git/20190107213013.231514-1-brho@google.com/

Motivation for this change

better blaming with gitsigns
and for the future treewide nix file reformatting

Things done

• Built on platform(s)
  • x86_64-linux
  • aarch64-linux
  • x86_64-darwin
  • aarch64-darwin
• For non-Linux: Is sandbox = true set in nix.conf? (See Nix manual)
• Tested, as applicable:
  • NixOS test(s) (look inside nixos/tests)
  • and/or package tests
  • or, for functions and "core" functionality, tests in lib/tests or pkgs/test
  • made sure NixOS tests are linked to the relevant packages
• Tested compilation of all packages that depend on this change using nix-shell -p nixpkgs-review --run "nixpkgs-review rev HEAD". Note: all changes have to be committed, also see nixpkgs-review usage
• Tested basic functionality of all binary files (usually in ./result/bin/)
• 22.05 Release Notes (or backporting 21.11 Release notes)
  • (Package updates) Added a release notes entry if the change is major or breaking
  • (Module updates) Added a release notes entry if the change is significant
  • (Module addition) Added a release notes entry if adding a new NixOS module
  • (Release notes changes) Ran nixos/doc/manual/md-to-db.sh to update generated release notes
• Fits CONTRIBUTING.md.

[happysalada]

This looks good to me

[teto]

sry I didn't read the whole thread but is that feature going to be in mainline git or was the patch rejected already ?

[0x4A6F]

Thanks

[sternenseemann]

sry I didn't read the whole thread but is that feature going to be in mainline git or was the patch rejected already ?

This feature has been supported by git for a while, only GitHub is lacking support for it.