SELECT WEBPACK CONFIG

Use

main webpack.config.js

var wsc = require('webpack-select-config');

// resolve path
// default: process.cwd()
wsc.resolvePath = process.cwd() + '/configs/'

var configs = {
    config1 : '/path1/webpack.config.js'
    config2 : '/path2/webpack.config.js'
    config3 : '/path3/webpack.config.js'
};

return wsc(configs);

package.json

{
    ...
    "scripts": {
        "task": "webpack --display-modules --watch"
    }
}

Build config1

npm run task -- --env.config1 

Build config1 and config3

npm run task -- --env.config1 --env.config3

Build all

npm run task