xeira/src/scripts/lint/eslint.mjs

One Web Dev stack tool to rule them all

import { promises as fs } from 'fs'
import path from 'path'
import { ESLint } from "eslint"
import { getEslintConfig } from '../../config/eslint.mjs'

async function _findEslintConfig(folder) {
  const filenames = ['eslint.config.js', 'eslint.config.mjs'];

  for (const filename of filenames) {
    const filePath = path.join(folder, filename);
    try {
      await fs.access(filePath);
      return filePath;
    } catch (error) {
      if (error.code !== 'ENOENT') {
        throw error;
      }
    }
  }

  return undefined
}


async function lintWithEslint(context, sourcePath) {
  const baseConfig = await getEslintConfig(context)
  const overrideConfig = {}

  const basePath = sourcePath
    ? path.join(context.pkgPath, sourcePath)
    : context.pkgPath
  
  const customConfigPath= await _findEslintConfig(context.pkgPath)

  const ignorePatterns = [
    "dist/",
    "lib/",
    "libs/",
    "build/",
    "arredemo/"
  ]

  const lintPatterns = [
    "**/*.js",
    "**/*.jsx",
    "**/*.ts",
    "**/*.tsx",
    "**/*.mjs",
    "**/*.cjs",
    "**/*.es6"
  ]
  
  const options= {
    cwd: basePath,
    ignorePatterns,
    baseConfig,
    overrideConfig,
    errorOnUnmatchedPattern: false,
    
    overrideConfigFile: customConfigPath ? customConfigPath : true
  }

  // call eslint's node api
  const eslint = new ESLint(options);

  const results = await eslint.lintFiles(lintPatterns);

  const formatter = await eslint.loadFormatter("stylish");
  const resultText = formatter.format(results);

  console.log(resultText);
}

export {
  lintWithEslint
}