petrol/libs/require-extension-hooks-babel.js

A javascript unit testing tool designed to be simple, to install it and start writing tests. that's it. No webpack, No karma. No distractions.

const babel = require('babel-core');
const defaultConfig = {
    exclude : [/node_modules\/(?!petrol)/],
    presets : [
        ['env', {
            targets : {
                node : 'current'
            }
        }]
    ],
    sourceMaps : true
};
let globalConfig = Object.assign({}, defaultConfig);

module.exports = function({content, filename}){
    for (let x = 0, l = globalConfig.exclude.length; x < l; x++){
        if (filename.match(globalConfig.exclude[x])){
            return;
        }
    }

    let config = Object.assign({ filename, sourceFileName : filename }, globalConfig);
    delete config.exclude;

    let result = babel.transform(content, config);

    return { content : result.code, sourceMap : result.map };
};
module.exports.configure = function (options) {
    globalConfig = Object.assign({}, defaultConfig, options);
};