Add Docker pre-commit hook

[allie-jo]

Is your feature request related to a problem? Please describe.
We've been using clj-kondo as a pre-commit hook in many of our projects, but in order to preempt users from having to install all of the dependencies for each pre-commit hook (including clj-kondo) we've been using Docker images instead. Because we do this manually using the local section of our pre-commit-config, we have to update the version manually. It would be great if the repo provided a docker hook directly so we can have CI run pre-commit autoupdate to update versions periodically automatically.

Describe the solution you'd like
Add a Docker hook in .pre-commit-hooks.yaml, pinned to the currently published docker version of clj-kondo. We've been using:

  - id: clj-kondo-docker
    name: clj-kondo (via docker)
    entry: cljkondo/clj-kondo:2022.11.03
    args: [clj-kondo, --lint]
    language: docker_image
    types: [clojure]

In our projects successfully for a while now. Would need to templatize .pre-commit-hooks.yaml but otherwise is a small change.

Additional context
How we're using clj-kondo in our pre-commits currently:

repos:
  ...
  ...
  - repo: local
    hooks:
      - id: clj-kondo
        name: clj-kondo (via docker)
        entry: cljkondo/clj-kondo:2022.11.03
        args: [clj-kondo, --lint]
        language: docker_image
        types: [clojure]

Happy to do this PR myself :)

[borkdude]

Does this mean that current users of the config suddenly will have to use Docker?

[allie-jo]

nope! it's just another option.
if you wanna use the current executable based hook

repos:
  - repo: https://github.com/clj-kondo/clj-kondo.git
    rev: v2022.11.02
    hooks:
      - id: clj-kondo

and if you wanna use the docker version

repos:
  - repo: https://github.com/clj-kondo/clj-kondo.git
    rev: v2022.11.02
    hooks:
      - id: clj-kondo-docker

[allie-jo]

hadolint does something similar, but they don't pin their docker version which causes some issues

[borkdude]

nope! it's just another option.

If that's the case, PR welcome!