static-cms/packages/netlify-cms-app/webpack.config.js

const webpack = require('webpack');
const pkg = require('./package.json');
const { getConfig, plugins } = require('../../scripts/webpack');
const baseWebpackConfig = getConfig({ baseOnly: true });

const isProduction = process.env.NODE_ENV === 'production';
console.log(`${pkg.version}${isProduction ? '' : '-dev'}`);

const baseConfig = {
  ...baseWebpackConfig,
  plugins: [
    ...Object.entries(plugins)
      .filter(([key]) => key !== 'friendlyErrors')
      .map(([, plugin]) => plugin()),
    new webpack.DefinePlugin({
      NETLIFY_CMS_APP_VERSION: JSON.stringify(`${pkg.version}${isProduction ? '' : '-dev'}`),
    }),
  ],
};

module.exports = baseConfig;