Run eslint on changed files in your git repo, before git commit. It output results colorfully.

$ npm install lint-git-changes --save-dev

or

$ yarn add lint-git-changes --dev

It should be used as a script with husky or pre-commit.

lint(options)

• ext - {String | Array<String>}. Files which matched the configured extensions will be lint. Default: "js".
• fix - {Boolean}. Whether fix the codes automatically. Default: false.
• dir - {String}. Choose the directory(relative path to project dir) to lint.

./foo.js

const lint = require('lint-git-changes')
lint({
  ext: 'js, jsx' // or ['js', 'jsx'] 
})

package.json

used with husky, please install it first.

{
  "script": {
    "precommit": "node ./foo.js"
  }
}

• eslint was considered as a peer dependency.