ESlint

Set up ESlint and try to make it pass linting
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Used 103 times
Created by
T TobiasBales

Usage

Run this command in your Rails app directory in the terminal:

rails app:template LOCATION="https://railsbytes.com/script/V2Gsqd"
Template Source

Review the code before running this template on your machine.

if File.exists? ".eslintrc.js"
  puts ".eslintrc.js already exists, aborting eslint setup"
  return 
end

def yarn(*packages)
  run("yarn add --dev #{packages.join(" ")}")
end

def file_contains(file, string)
  File.foreach(file).detect { |line| line.include?(string) }
end

yarn '[email protected]', 'eslint-config-airbnb-base', 'eslint-plugin-import', 'babel-eslint'

create_file '.eslintrc.js' do <<~EOF
  module.exports = {
    parser: 'babel-eslint',
    env: {
      browser: true,
      es2020: true,
    },
    extends: [
      'airbnb-base',
    ],
    parserOptions: {
      ecmaVersion: 11,
      sourceType: 'module',
    },
    rules: {
    },
  };
  EOF
end

inject_into_file 'babel.config.js', before: "module.exports" do <<~EOF
  /* eslint-disable func-names */
  EOF
end

inject_into_file 'postcss.config.js', before: "module.exports" do <<~EOF
  /* eslint-disable global-require */
  /* eslint-disable import/no-extraneous-dependencies */
  EOF
end

gsub_file "app/javascript/channels/consumer.js", "using the `rails generate channel` command." do |match|
  "\n// #{match}"
end

if file_contains "app/javascript/packs/application.js", 'require("channels")'
  inject_into_file "app/javascript/packs/application.js", before: 'require("channels")' do <<~EOF
  // eslint-disable-next-line import/no-unresolved
  EOF
  end
end
  
if file_contains "app/javascript/packs/application.js", 'import "controllers"'
  gsub_file "app/javascript/packs/application.js", 'import "controllers"' do |match|
  <<~EOF
  // eslint-disable-next-line import/no-unresolved
  #{match}
  EOF
  end
end

gsub_file 'app/javascript/packs/application.js', 'bootstrap/dist/css/bootstrap', 'bootstrap/dist/css/bootstrap.css'


system('npx eslint --fix app')
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