121 lines
3.8 KiB
JavaScript
121 lines
3.8 KiB
JavaScript
const childProcess = require('child_process');
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const ip = require('ip');
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const path = require('path');
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const webpack = require('webpack');
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// The common js bundle (not this one) is built using tsc.
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// The umd bundle (this one) has a different entrypoint.
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const ACCEPTABLE_ENV_NAMES = ['production_standalone', 'production_cdn', 'staging', 'dogfood', 'development'];
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const getEnvironmentName = env => {
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if (!env) {
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throw new Error('Please specify env via --env to webpack');
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}
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const foundName = ACCEPTABLE_ENV_NAMES.find(e => (env[e] ? e : false));
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if (!foundName) {
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throw new Error(
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`Couldn't find env name, please specify via one of the following CLI arguments: ${acceptableEnvNames.map(
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i => `--env.${i}`,
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)}`,
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);
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}
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return foundName;
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};
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const getConfigForEnv = environmentName => {
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switch (environmentName) {
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case 'production_standalone':
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case 'production_cdn':
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return {
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heapAnalyticsIdEnvName: 'INSTANT_HEAP_ANALYTICS_ID_PRODUCTION',
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heapAnalyticsIdRequired: environmentName !== 'production_standalone',
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};
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case 'staging':
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case 'dogfood':
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case 'development':
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return {
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heapAnalyticsIdEnvName: 'INSTANT_HEAP_ANALYTICS_ID_DEVELOPMENT',
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heapAnalyticsIdRequired: environmentName !== 'development',
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};
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}
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};
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const GIT_SHA = childProcess
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.execSync('git rev-parse HEAD')
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.toString()
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.trim();
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const generateConfig = (environmentName, configOptions) => {
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const outputPath = process.env.WEBPACK_OUTPUT_PATH || 'umd';
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const { heapAnalyticsIdEnvName, heapAnalyticsIdRequired } = configOptions;
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const heapAnalyticsId = process.env[heapAnalyticsIdEnvName];
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if (heapAnalyticsIdRequired && !heapAnalyticsId) {
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throw new Error(
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`Must define heap analytics id in ENV var ${heapAnalyticsIdEnvName} when building for ${environmentName}`,
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);
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}
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const envVars = {
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GIT_SHA: JSON.stringify(GIT_SHA),
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INSTANT_ENVIRONMENT: JSON.stringify(environmentName),
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NPM_PACKAGE_VERSION: JSON.stringify(process.env.npm_package_version),
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};
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if (heapAnalyticsId) {
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envVars.HEAP_ANALYTICS_ID = JSON.stringify(heapAnalyticsId);
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}
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const config = {
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entry: {
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instant: './src/index.umd.ts',
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},
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output: {
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filename: '[name].js',
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path: path.resolve(__dirname, outputPath),
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library: 'zeroExInstant',
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libraryTarget: 'umd',
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},
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plugins: [
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new webpack.DefinePlugin({
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'process.env': envVars,
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}),
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],
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devtool: 'source-map',
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resolve: {
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extensions: ['.js', '.json', '.ts', '.tsx'],
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},
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module: {
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rules: [
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{
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test: /\.(ts|tsx)$/,
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loader: 'awesome-typescript-loader',
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},
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{
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test: /\.svg$/,
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loader: 'svg-react-loader',
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},
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],
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},
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devServer: {
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contentBase: path.join(__dirname, 'public'),
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port: 5000,
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host: '0.0.0.0',
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after: () => {
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if (config.devServer.host === '0.0.0.0') {
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console.log(
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`webpack-dev-server can be accessed externally at: http://${ip.address()}:${
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config.devServer.port
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}`,
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);
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}
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},
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},
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};
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return config;
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};
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module.exports = (env, _argv) => {
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const environmentName = getEnvironmentName(env);
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const configOptions = getConfigForEnv(environmentName);
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return generateConfig(environmentName, configOptions);
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};
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