Civet ESLint plugin

This plugin enables using ESLint (and optionally typescript-eslint) directly on your .civet files. Specifically, it provides a processor for converting .civet files into TypeScript or JavaScript, and provides some recommended rules for Civet code.

Installation

Install the plugin, along with Civet, ESLint, and (optionally) typescript-eslint if you haven't already:

npm install -D eslint-plugin-civet @danielx/civet eslint @eslint/js typescript-eslint

Simple Usage with typescript-eslint

Here is a sample eslint.config.mjs (ESM mode):

import civetPlugin from "eslint-plugin-civet/ts"

export default [
  // Rules from eslint.configs.recommended
  ...civetPlugin.configs.jsRecommended,
  // Rules from tseslint.configs.strict
  ...civetPlugin.configs.strict,
]

Here is a sample eslint.config.cjs (CJS mode):

const civetPlugin = require("eslint-plugin-civet/ts")

module.exports = [
  // Rules from eslint.configs.recommended
  ...civetPlugin.configs.jsRecommended,
  // Rules from tseslint.configs.strict
  ...civetPlugin.configs.strict,
]

This will load the plugin, enable the processor for *.civet files, and turn on eslint's recommended rules and typescript-eslint's strict rules. Alternatively, change configs.strict to configs.recommended or another of typescript-eslint's available configurations.

Simple Usage with ESLint and JavaScript

If you'd rather not use typescript-eslint, and just want to use ESLint to check your Civet code as JavaScript, here is a sample eslint.config.mjs (ESM mode):

import civetPlugin from "eslint-plugin-civet"

export default [
  ...civetPlugin.configs.recommended
]

Here is a sample eslint.config.cjs (CJS mode):

module.exports = [
  ...require("eslint-plugin-civet").configs.recommended
]

This will load the plugin, enable the processor for *.civet files, and turn on ESLint's recommended rules. Alternatively, change configs.recommended to configs.all to enable all of ESLint's rules.

Complex Usage with ESLint and JavaScript

Here is a sample eslint.config.mjs that more explicitly configures behavior for .civet files and otherwise:

import civetPlugin from "eslint-plugin-civet"
import js from "@eslint/js"

export default [
  // Enable recommended rules for all files
  js.configs.recommended,
  // Load plugin and enable processor for .civet files
  {
    files: ["**/*.civet"],
    plugins: {
      civet: civetPlugin,
    },
    processor: "civet/civet",
    // Here is where you would override specific rules.
    // We provide an `overrides` rule set that disables rules that
    // don't work well with Civet output.
    ...civetPlugin.configs.overrides,
  },
]

Civet Configuration

If you need to customize the Civet compiler's configuration (beyond just js: true vs. js: false), import { civet } from either "eslint-plugin-civet" or "eslint-plugin-civet/ts" (also available as .civet` from the default import). This function takes an options object for the Civet compiler, and returns a plugin:

import { civet } from "eslint-plugin-civet"
const civetPlugin = civet({
  parseOptions: {
    // coffeeCompat: true,
    // ...
  },
})
// rest as before

Example

You can see a full working example in the example directory.