npm i -g yo
npm i -g generator-eslint
mkdir company-lint
cd company-lint
yo eslint:plugin

yo eslint:rule

const parserOptions = {
  ecmaVersion: 2018,
  sourceType: 'module',
  ecmaFeatures: {
    jsx: true
  }
};

var ruleTester = new RuleTester({parserOptions});

valid: [{ code: `
      import React, { PureComponent } from 'react';
      import styles from './Cart.css';

      class Cart extends PureComponent {
        render() {
          return (<p className={styles.Cart}>…</p>)
        }
      }
      export default Cart;
`}]

invalid: [{code: `
  import React, { PureComponent } from 'react';
  class Cart extends PureComponent {
    render() {
      return (<p className='Cart'>…</p>)
    }
  }
  export default Cart;`,
  errors: [{
      message: "You should use css modules instead",
      type: "JSXAttribute"
  }]}]

module.exports = {
  create: function(context) {
    return {
      "selector": handler,
    }
  },
};

https://astexplorer.net/

"JSXAttribute": function (node) {
  if (
    (node.name.name === 'className')
    && (node.value.type === 'Literal')
  ) {
    context.report({
      node,
      message: 'You should use css modules instead'
    })
  }
},

npm i
npm t

npm publish

npm i -D company-lint

// .eslintrc
"plugins": [
  "company-lint",
],
"rules": {
  "company-lint/no-string-classname": 2,
},

npm init

npm i -S command-line-args

// index.js
#! /usr/bin/env node

// index.js
#! /usr/bin/env node
const fs = require('fs');
const filePath = process.argv[2];
if (!fs.existsSync(filePath)) {
  console.log('Can not read commit message');
  process.exit(1);
}
const message = fs.readFileSync(filePath);

const commandLineArgs = require('command-line-args');
const optionDefinitions = [{ 
  name: 'regexp', 
  alias: 'r', 
  type: String, 
  defaultValue: '^[A-Z]+-[0-9]+\s-\s[\W\w\s]{5,}[\s]*$' },
];
const cli = commandLineArgs(optionDefinitions);

const commonRegexp = new RegExp(
  cli.regexp, 
  'ig'
);
if (!commonRegexp.test(message)) {
  console.log("Wrong commit message format");
  process.exit(3);
}
process.exit(0);

// package.json
"name": "my-message-hook",
"main": "index.js",
"bin": {"commit-msg": "index.js"},
"scripts": {
  "release": "npm version patch && 
              git push --tags && 
              npm publish --access public"
}

$ npm i -S my-message-hook
$ npm i -D husky

// package.json
"scripts": {
  "commitmsg": "commit-msg  
                  ${GIT_PARAMS} 
                  -r MyRegExp"
},