build-umd.js

/* eslint-disable no-console, import/no-extraneous-dependencies */

import webpack from 'webpack'

webpack(
  {
    entry: './src',
    output: {
      filename: './umd.js',
      libraryTarget: 'umd',
      library: 'reactFirebase',
    },
    externals: {
      react: {
        root: 'React',
        commonjs: 'react',
        commonjs2: 'react',
      },
      'firebase/database': {
        root: 'firebase',
        commonjs: 'firebase/database',
        commonjs2: 'firebase/database',
      },
      'firebase/app': {
        root: 'firebase',
        commonjs: 'firebase/app',
        commonjs2: 'firebase/app',
      },
    },
    module: {
      loaders: [{ test: /\.js$/, exclude: /node_modules/, loader: 'babel-loader' }],
    },
    plugins: [new webpack.optimize.UglifyJsPlugin()],
  },
  (error, stats) => {
    if (error) {
      console.log(error)
      return
    }

    console.log(
      stats.toString({
        colors: true,
        chunks: false,
        version: false,
        hash: false,
      })
    )
  }
)