fix(build): ts-compile not reporting failures

tools/packages/compile-entry-point.ts

@@ -5,7 +5,7 @@ import { sync as glob } from 'glob';
 import { join } from 'path';
 
 import { BuildPackage } from './build-package';
-import { ngcCompile } from './ngc-compile';
+import { tsCompile } from './ts-compile';
 
 
 let nextId = 0;
@@ -24,7 +24,7 @@ export async function compileEntryPoint(buildPackage: BuildPackage, tsConfigName
         ngcFlags.push('--outDir', es5OutputPath, '--target', 'ES5');
     }
 
-    return ngcCompile(ngcFlags).catch(() => {
+    return tsCompile('ngc', ngcFlags).catch(() => {
         const error = chalk.default.red(`Failed to compile ${secondaryEntryPoint} using ${entryPointTSConfigPath}`);
         /* tslint:disable-next-line:no-console */
         console.error(error);
@@ -73,6 +73,7 @@ function addImportAs(packageName: string, outputPath: string, secondaryEntryPoin
     glob(join(path, '**/*.+(metadata.json)')).forEach((metadataPath) => {
         const metadata = JSON.parse(readFileSync(metadataPath, 'utf-8'));
 
+        // tslint:disable-next-line
         metadata[0]['importAs'] = `@ptsecurity/${packageName}/${secondaryEntryPoint}`;
 
         writeFileSync(metadataPath, JSON.stringify(metadata), 'utf-8');

tools/packages/ts-compile.ts

@@ -0,0 +1,31 @@
+import * as chalk from 'chalk';
+import { spawn } from 'child_process';
+
+import {resolve as resolvePath } from 'path';
+
+
+/* tslint:disable:no-console */
+/**
+ * Spawns a child process that compiles TypeScript using the specified compiler binary.
+ * @param binary Binary name that will be used for TS compilation.
+ * @param flags Command-line flags to be passed to binary.
+ * @returns Promise that resolves/rejects when the child process exits.
+ */
+export function tsCompile(binary: 'tsc' | 'ngc', flags: string[]) {
+
+    // tslint:disable-next-line
+    return new Promise((resolve, reject) => {
+        const binaryPath = resolvePath('./node_modules/.bin/ngc');
+        const childProcess = spawn(binaryPath, flags, {shell: true});
+
+        // Pipe stdout and stderr from the child process.
+        childProcess.stdout.on('data', (data: string | Buffer) => console.log(`${data}`));
+        childProcess.stderr.on('data', (data: string | Buffer) => console.error(chalk.default.red(`${data}`)));
+        childProcess.on('exit', (exitCode: number) => {
+            // tslint:disable-next-line
+            exitCode === 0 ? resolve() : reject(`${binary} compilation failure`);
+        });
+    });
+}
+
+/* tslint:enable:no-console */

tools/packages/version-placeholders.ts

@@ -1,7 +1,9 @@
+import { spawnSync } from 'child_process';
 import { readFileSync, writeFileSync } from 'fs';
 import { platform } from 'os';
+
 import { buildConfig } from './build-config';
-import { spawnSync } from 'child_process';
+
 
 /** Variable that is set to the string for version placeholders. */
 const versionPlaceholderText = '0.0.0-PLACEHOLDER';
@@ -26,7 +28,7 @@ export function replaceVersionPlaceholders(packageDir: string) {
 
     // Walk through every file that contains version placeholders and replace those with the current
     // version of the root package.json file.
-    files.forEach(filePath => {
+    files.forEach((filePath) => {
         const fileContent = readFileSync(filePath, 'utf-8')
             .replace(ngVersionPlaceholderRegex, buildConfig.angularVersion)
             .replace(versionPlaceholderRegex, buildConfig.projectVersion);
@@ -38,6 +40,7 @@ export function replaceVersionPlaceholders(packageDir: string) {
 /** Finds all files in the specified package dir where version placeholders are included. */
 function findFilesWithPlaceholders(packageDir: string): string[] {
     const findCommand = buildPlaceholderFindCommand(packageDir);
+
     return spawnSync(findCommand.binary, findCommand.args).stdout
         .toString()
         .split(/[\n\r]/)