feat: support specifying stages, close #49

[blaggacao]

replace #52 (rebased & squashed)

[blaggacao]

unrelated: pre-commit does append to path and not override existing pre-commit

PATH=/home/blaggacao/.nix-profile/bin:/nix/store/v9dasbp7zqriainlak5hc2idpr8cmcn1-vicidial-go-env/bin:/nix/store/6h0xx5d8wwl8zf7g4x2sjl0q4hr3nnb4-bash-interactive-4.4-p23/bin:/home/blaggacao/.oh-my-zsh/custom/plugins/nix-shell/scripts:/home/blaggacao/.nix-profile/bin:/home/blaggacao/.cargo/bin:/home/blaggacao/.npm-global/bin:/home/blaggacao/.poetry/bin:/home/blaggacao/go/bin:/home/blaggacao/bin:/home/blaggacao/.local/bin:/usr/local/bin:/usr/bin:/bin:/usr/games:/usr/local/go/bin:/snap/bin:/home/blaggacao/.fzf/bin:/home/blaggacao/.nix-profile/bin:/home/blaggacao/.cargo/bin:/home/blaggacao/.npm-global/bin:/home/blaggacao/.poetry/bin:/home/blaggacao/go/bin:/home/blaggacao/bin:/home/blaggacao/.local/bin:/usr/local/bin:/usr/bin:/bin:/usr/games:/usr/local/go/bin:/snap/bin:/home/blaggacao/.fzf/bin:/nix/store/dqlx77d224grs7ch39jhgfplf68mg6sl-python3.8-pre-commit-2.7.1/bin

beware I'm hitting this: (from an earlier contribution about shellcheck detection)

$ pre-commit run --all --hook-stage manual generate
An error has occurred: InvalidConfigError:
==> File .pre-commit-config.yaml
==> At Config()
==> At key: repos
==> At Repository(repo='local')
==> At key: hooks
==> At Hook(id='shellcheck')
==> At key: types
==> At index 1
=====> Type tag 'ash' is not recognized.  Try upgrading identify and pre-commit?
Check the log at /home/blaggacao/.cache/pre-commit/pre-commit.log
$ pre-commit --version
pre-commit 2.5.1

builtins.fetchTarball {
  # git ls-remote https://github.com/nixos/nixpkgs nixpkgs-unstable

  # unstable
  url = "https://github.com/nixos/nixpkgs/tarball/26d3fbf21563c52f124551eb60dec5ea17ade8fa";
  sha256 = "sha256:08xhvfnwy60yyyhkddg7lknm9g7w2pg6lkyha5kfkg98c09f1p10";
}

(from today)

[domenkozar]

Why do we diverge from pre-commit settings by not just specifying pre-push instead of push?

[blaggacao]

Precommit has two identifiers "push" (the stage) and "pre-push" (the hook) in an attempt to be extra "correct" about things, while achieving only plain confusion. Here it's "push" (the stage).

[blaggacao]

Ps: I also wondered and got bitten. More than once.