ReScript Lint

Linting for ReScript built with ast-grep.

ALPHA

This is in the early stages of development. Rules are limited and it might not work 100% as expected. Issues and PRs are welcome!

Installation

Rescript Lint requires Node 22+ and is recommended to use with ESM. It has not been tested with CJS and it isn't supported officially.

Install the package

npm i rescript-lint -D

Create a config file

// rescript-lint.mjs
export default {
    "include": ["src"], // Glob of files to include or exclude
    "rules": {
        "no-console": "error" // error, warning, off
    }
}

Run the setup command

ReScript lint is using ast-grep under the hood, so we need to run a command to configure it anytime you change the config file.

npm exec rescrip-lint:init

ast-grep VSCode extension

There is an ast-grep VSCode extension you can install to highlight errors and warnings. The init command will make sure you have the .vscode/settings.json configured. If you want to manually configure or change it just make sure you have "astGrep.configPath": "node_modules/rescript-lint/sgconfig.yml" set.

ast-grep supports other editors, just make sure you have the config path set to node_modules/rescript-lint/sgconfig.yml.