comparison build-prod.js @ 138:efa231b10580

Script for running ng build --prod, but with some beautifully brittle bodges for workarounds I've been doing manually. No automation for git commits and pushing to gh-pages yet.

+/**
+ * Created by lucas on 20/03/2017.
+ */
+'use strict';
+const webpack = require('webpack');
+const cli = require('@angular/cli');
+const fs = require('fs');
+webpack.optimize = Object.assign({}, webpack.optimize, {
+  UglifyJsPlugin: function () { this.apply = () => {}; }
+});
+
+const bundlePrefixes = [
+  'main',
+  'polyfills',
+  'scripts',
+  'styles',
+  'vendor',
+  'inline'
+];
+
+const distDir = './dist';
+const tmpDir = `${distDir}/gh-pages`;
+
+const getGeneratedBundleNames = () => {
+  return new Promise((res, rej) => {
+    fs.readdir(distDir, (err, files) => {
+      if (err) {
+        rej(1);
+      } else {
+        res(files.filter(file => bundlePrefixes.find(
+          prefix => file.startsWith(prefix)
+        )));
+      }
+    })
+  });
+};
+
+const throwIfBuildReportedError = (result) => {
+  return new Promise((res, rej) => {
+    if (typeof result === 'object' && result.exitCode != null) {
+      if (result.exitCode === 0) {
+        res();
+      } else {
+        rej(result.exitCode);
+      }
+    } else if(typeof result === 'number') {
+      if (result === 0) {
+        res();
+      } else {
+        rej(result);
+      }
+    } else {
+      res();
+    }
+  });
+};
+
+const copyToTmpDir = (bundles) => {
+  // TODO should really handle errors for all of this
+  // and it could be async but i'm too lazy & it doesn't really matter for this
+  if (!fs.existsSync(tmpDir)){
+    fs.mkdirSync(tmpDir);
+  }
+  for (let bundle of bundles) {
+    const parts = bundle.split('.');
+    const bundlePrefix = parts[0];
+    const bundleExtension = parts[parts.length - 1];
+    const contents = fs.readFileSync(`${distDir}/${bundle}`);
+    fs.writeFileSync(
+      `${tmpDir}/${bundlePrefix}.bundle.${bundleExtension}`,
+      contents
+    );
+  }
+};
+
+cli({
+  cliArgs: ['build', '--prod', '--aot', 'false', '-bh', '/ugly-duckling/'],
+  inputStream: process.stdin,
+  outputStream: process.stdout
+})
+.then(throwIfBuildReportedError)
+.then(getGeneratedBundleNames)
+.then(copyToTmpDir)
+.then(process.exit)
+.catch(process.exit);