README.md

   1 # Pronto runner for ESLint (using eslint from npm)
   2
   3 [![Code Climate](https://codeclimate.com/github/doits/pronto-eslint_npm.svg)](https://codeclimate.com/github/doits/pronto-eslint_npm)
   4 [![Build Status](https://travis-ci.org/doits/pronto-eslint_npm.svg?branch=master)](https://travis-ci.org/doits/pronto-eslint_npm)
   5 [![Gem Version](https://badge.fury.io/rb/pronto-eslint_npm.svg)](http://badge.fury.io/rb/pronto-eslint_npm)
   6
   7 Pronto runner for [ESlint](http://eslint.org), pluggable linting utility for JavaScript and JSX. [What is Pronto?](https://github.com/mmozuras/pronto)
   8
   9 Uses official eslint executable installed by `npm` in contrast to [pronto-eslint][pronto-eslint].
  10
  11 [pronto-eslint]: https://github.com/mmozuras/pronto-eslint
  12
  13 ## Prerequisites
  14
  15 You'll need to install [eslint by yourself with npm][eslint-install]. If `eslint` is in your `PATH`, everything will simply work, otherwise you have to provide pronto-eslint-npm your custom executable path (see [below](#configuration-of-eslintnpm)).
  16
  17 [eslint-install]: http://eslint.org/docs/user-guide/getting-started
  18
  19 ## Configuration of ESLint
  20
  21 Configuring ESLint via [.eslintrc and consorts][eslintrc] and excludes via [.eslintignore][eslintignore] will work just fine with pronto-eslint-npm.
  22
  23 [eslintrc]: http://eslint.org/docs/user-guide/configuring#configuration-file-formats
  24
  25 [eslintignore]: http://eslint.org/docs/user-guide/configuring#ignoring-files-and-directories
  26
  27 ## Configuration of ESLintNPM
  28
  29 pronto-eslint-npm can be configured by placing a `.pronto_eslint_npm.yml` inside the directory where pronto is run.
  30
  31 Following options are available:
  32
  33 | Option            | Meaning                                                                                  | Default                             |
  34 | ----------------- | ---------------------------------------------------------------------------------------- | ----------------------------------- |
  35 | eslint_executable | ESLint executable to call.                                                               | `eslint` (calls `eslint` in `PATH`) |
  36 | files_to_lint     | What files to lint. Absolute path of offending file will be matched against this Regexp. | `(\.js|\.es6)$`                     |
  37
  38 Example configuration to call custom eslint executable and only lint files ending with `.my_custom_extension`:
  39
  40 ```yaml
  41 # .pronto_eslint_npm.yml
  42 eslint_executable: '/my/custom/node/path/.bin/eslint'
  43 files_to_lint: '\.my_custom_extension$'
  44 ```