👮🏻 Checkpoints 👮🏻

Add linting, code formatting and precommit checks to an existing project.

yarn global add checkpoints

Why?

Adding linting, prettier and precommit checks multiple times a day to new/existing repos is no fun and often it can be difficult to recall the correct dependencies to install. This project aims to mitigate those problems.

Note: There are plans to add a checkpoints config action, which would allow users to specify their own xo and prettier configurations. For now though the project is limited to the configs specified below.

Things to Note

This project uses yarn to install dependencies. There are plans in place to add the option to use NPM but for now it's limited to Yarn.

Installation

yarn global add checkpoints

Usage

checkpoints

Options

• xo
• xo-react
• prettier
• precommit

xo

XO is a linter which sits on top of ESLint and abstracts much of the configuration.

Config

The following is the default config that will be added to your package.json file:

"xo": {
  "parser": "babel-eslint",
  "envs": ["browser", "node"],
  "prettier": true,
  "space": true,
  "rules": {
    "camelcase": [
      2,
      {
        "properties": "never"
      }
    ]
  }
}

Dependencies

xo
babel-eslint
eslint-config-xo

xo-react

The xo-react action adds everything from the xo action but configures it for React.

Config

The following is added to the above xo configuration:

"extends": ["react"],
"plugins": ["react"]

Dependencies

eslint-config-xo-react 
eslint-plugin-react

Prettier

Config

{
  "prettier": {
    "semi": true,
    "singleQuote": true,
    "trailingComma": "none",
    "bracketSpacing": true
  }
}

Dependencies

prettier
prettier-eslint
eslint-config-prettier

Precommit

The precommit action uses pre-commit and lint-staged to lint your repo prior to git commits.

Config

{
  "scripts": {
    "lint-staged": "lint-staged"
  },
  "lint-staged": {
    "**/*.js": [
      "prettier --write",
      "git add",
      "xo"
    ]
  },
  "precommit": {
    "run": [
      "lint-staged"
    ]
  }
}

Dependencies

lint-staged
pre-commit