ocaml / ocaml/dune

Custom lint ?

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build preprocessing
Dominant language
OCaml
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Merged PRs (30d)
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Description

Hi!

Desired Behavior

Hello, it seems that the current system makes it impossible to run a custom promotable linting action, as it is possible for ppx.

(library
   (name ...)
   (lint (pps ppx_yojson_conv))

will let you run dune build @lint and then dune promote

In the same manner, I would expect

(library
  (name ...)
  (lint (action (echo "test")))

to let produce promotable files where every one of my ml and mli file have been overridden by files containing just "test".

I know it's happening in preprocessing.ml > lint_module > | Action where the target is set to None and no promote_correction is happening, but I haven't had time to dive deeper into it to make it work yet

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start in preprocessing.ml at lint_module, specifically the Action case where the issue reports that the target is set to None. Reproduce the custom lint action with dune build @lint followed by dune promote; done means the action produces promotable files for the ML and MLI sources.

Written by the indexing model from the issue text.

Assessment

Tech stack
ocaml
Domain
build-system
Issue type
Feature
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
35/100

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