How can I generate configs for multiple directories?

[allanlewis]

I have a monorepo with a number of components, each in its own directory. The hooks I want to fun for each component are similar; for the purpose of this discussion let's say they're the same but with the name of the component/service templated-in somehow. Can Lefthook support this?

[mrexox]

Hey! Lefthook has root option made exactly for monorepos.

So, I guess it will look something like this:

pre-commit:
  commands:
    component1:
      root: project1/
      run: make component1
    component2:
      root: project2
      run: make component2

If you have the same command to run you can use YAML anchors

_: # this custom hook is used only to provide the anchor
  commands:
    command: &command
      run: yarn lint
      glob: "*.js"
      stage_fixed: true

pre-commit:
  commands:
    component1:
      *command
      root: project1/
    component2:
      *command
      root: project2

[VanTanev]

The above YAML is incorrect. The way to reference and expand another reference is with <<: *var, not *var by itself. So, for posterity:

_: # this custom hook is used only to provide the anchor
  commands:
    command: &command
      run: yarn lint
      glob: "*.js"
      stage_fixed: true

pre-commit:
  commands:
    component1:
      <<: *command
      root: project1/
    component2:
      <<: *command
      root: project2

[mrexox]

Thank you! Yes, my version is incorrect. This ⬆️ is the working one.