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const childProcess = require('child_process');
const ip = require('ip');
const path = require('path');
const RollbarSourceMapPlugin = require('rollbar-sourcemap-webpack-plugin');
const webpack = require('webpack');
const GIT_SHA = childProcess
.execSync('git rev-parse HEAD')
.toString()
.trim();
const DISCHARGE_TARGETS_THAT_REQUIRED_HEAP = ['production', 'staging', 'dogfood'];
const getHeapConfigForDischargeTarget = dischargeTarget => {
return {
heapAnalyticsIdEnvName:
dischargeTarget === 'production'
? 'INSTANT_HEAP_ANALYTICS_ID_PRODUCTION'
: 'INSTANT_HEAP_ANALYTICS_ID_DEVELOPMENT',
heapAnalyticsIdRequired: DISCHARGE_TARGETS_THAT_REQUIRED_HEAP.includes(dischargeTarget),
};
};
const DISCHARGE_TARGETS_THAT_REQUIRE = ['production', 'staging', 'dogfood'];
const getRollbarConfigForDischargeTarget = dischargeTarget => {
if (DISCHARGE_TARGETS_THAT_REQUIRE.includes(dischargeTarget)) {
const rollbarSourceMapPublicPath =
dischargeTarget === 'production'
? 'https://instant.0xproject.com'
: `http://0x-instant-${dischargeTarget}.s3-website-us-east-1.amazonaws.com`;
return {
rollbarSourceMapPublicPath,
rollbarRequired: true,
};
}
return {
rollbarRequired: false,
};
};
const ROLLBAR_CLIENT_TOKEN_ENV_VAR_NAME = 'INSTANT_ROLLBAR_CLIENT_TOKEN';
const ROLLBAR_PUBLISH_TOKEN_ENV_VAR_NAME = 'INSTANT_ROLLBAR_PUBLISH_TOKEN';
const getRollbarTokens = (dischargeTarget, rollbarRequired) => {
const clientToken = process.env[ROLLBAR_CLIENT_TOKEN_ENV_VAR_NAME];
const publishToken = process.env[ROLLBAR_PUBLISH_TOKEN_ENV_VAR_NAME];
if (rollbarRequired) {
if (!clientToken) {
throw new Error(
`Rollbar client token required for ${dischargeTarget}, please set env var ${ROLLBAR_CLIENT_TOKEN_ENV_VAR_NAME}`,
);
}
if (!publishToken) {
throw new Error(
`Rollbar publish token required for ${dischargeTarget}, please set env var ${ROLLBAR_PUBLISH_TOKEN_ENV_VAR_NAME}`,
);
}
}
return { clientToken, publishToken };
};
const generateConfig = (dischargeTarget, heapConfigOptions, rollbarConfigOptions, nodeEnv) => {
const outputPath = process.env.WEBPACK_OUTPUT_PATH || 'umd';
const { heapAnalyticsIdEnvName, heapAnalyticsIdRequired } = heapConfigOptions;
const heapAnalyticsId = process.env[heapAnalyticsIdEnvName];
if (heapAnalyticsIdRequired && !heapAnalyticsId) {
throw new Error(
`Must define heap analytics id in ENV var ${heapAnalyticsIdEnvName} when building for ${dischargeTarget}`,
);
}
const rollbarTokens = getRollbarTokens(dischargeTarget, rollbarConfigOptions.rollbarRequired);
const rollbarEnabled =
rollbarTokens.clientToken && (nodeEnv !== 'development' || process.env.INSTANT_ROLLBAR_FORCE_DEVELOPMENT);
let rollbarPlugin;
if (rollbarConfigOptions.rollbarRequired) {
if (!rollbarEnabled || !rollbarTokens.publishToken || !rollbarConfigOptions.rollbarSourceMapPublicPath) {
throw new Error(`Rollbar required for ${dischargeTarget} but not configured`);
}
rollbarPlugin = new RollbarSourceMapPlugin({
accessToken: rollbarTokens.publishToken,
version: GIT_SHA,
publicPath: rollbarConfigOptions.rollbarSourceMapPublicPath,
});
}
const envVars = {
GIT_SHA: JSON.stringify(GIT_SHA),
NPM_PACKAGE_VERSION: JSON.stringify(process.env.npm_package_version),
ROLLBAR_ENABLED: rollbarEnabled,
};
if (dischargeTarget) {
envVars.INSTANT_DISCHARGE_TARGET = JSON.stringify(dischargeTarget);
}
if (heapAnalyticsId) {
envVars.HEAP_ANALYTICS_ID = JSON.stringify(heapAnalyticsId);
}
if (rollbarTokens.clientToken) {
envVars.ROLLBAR_CLIENT_TOKEN = JSON.stringify(rollbarTokens.clientToken);
}
const plugins = [
new webpack.DefinePlugin({
'process.env': envVars,
}),
];
if (rollbarPlugin) {
plugins.push(rollbarPlugin);
}
const config = {
entry: {
instant: './src/index.umd.ts',
},
output: {
filename: '[name].js',
path: path.resolve(__dirname, outputPath),
library: 'zeroExInstant',
libraryTarget: 'umd',
},
plugins,
devtool: 'source-map',
resolve: {
extensions: ['.js', '.json', '.ts', '.tsx'],
},
module: {
rules: [
{
test: /\.(ts|tsx)$/,
loader: 'awesome-typescript-loader',
},
{
test: /\.svg$/,
loader: 'svg-react-loader',
},
{
test: /\.js$/,
loader: 'source-map-loader',
exclude: [
// instead of /\/node_modules\//
path.join(process.cwd(), 'node_modules'),
path.join(process.cwd(), '../..', 'node_modules'),
],
},
],
},
devServer: {
contentBase: path.join(__dirname, 'public'),
port: 5000,
host: '0.0.0.0',
after: () => {
if (config.devServer.host === '0.0.0.0') {
console.log(
`webpack-dev-server can be accessed externally at: http://${ip.address()}:${
config.devServer.port
}`,
);
}
},
},
};
return config;
};
module.exports = (env, argv) => {
const dischargeTarget = env ? env.discharge_target : undefined;
const heapConfigOptions = getHeapConfigForDischargeTarget(dischargeTarget);
const rollbarConfigOptions = getRollbarConfigForDischargeTarget(dischargeTarget);
return generateConfig(dischargeTarget, heapConfigOptions, rollbarConfigOptions, argv.mode);
};
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