eslint-plugin-babel/rules/func-params-comma-dangle.js

'use strict';

var isWarnedForDeprecation = false;
module.exports = {
    meta: {
        deprecated: true,
        schema: [
            {
                "enum": ["always", "always-multiline", "only-multiline", "never"]
            }
        ]
    },
    create: function() {
        return {
            Program: function() {
                if (isWarnedForDeprecation || /\=-(f|-format)=/.test(process.argv.join('='))) {
                    return;
                }

                /* eslint-disable no-console */
                console.log('The babel/func-params-comma-dangle rule is deprecated. Please ' +
                            'use the built in comma-dangle rule instead.');
                /* eslint-enable no-console */
                isWarnedForDeprecation = true;
            }
        };
    }
};