Is it possible to run linters before applying ppxs
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preprocessing
question
- Dominant language
- OCaml
- Stars
- 1.9k
- Forks
- 500
- Avg merge
- 15h 17m
- Merged PRs (30d)
- 287
Description
Our codebase makes use of a hand-rolled AST-based linter that we apply using the following field in a library stanza:
(lint (pps cs_lint --null))
Currently our linter is finding issues with ppx-generated code that is added as part of the build in a preprocess field.
Is it possible to configure dune so that the linting is run before the pre-processing?
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by tracing how dune handles the library stanza's lint and preprocess fields, then reproduce their ordering with a minimal example. Done means establishing whether linting can run before preprocessing and documenting or implementing the supported configuration, with a test that verifies the ordering.
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