build(): Refactor Gulpfile to TS

tools/gulp/tasks/packages.ts

@@ -0,0 +1,78 @@
+import { source, packagePaths } from '../config';
+import { task, watch, series, dest } from 'gulp';
+import { createProject } from 'gulp-typescript';
+import * as sourcemaps from 'gulp-sourcemaps';
+import * as log from 'fancy-log';
+
+// Has to be a hardcoded object due to build order
+const packages = {
+  'common': createProject('packages/common/tsconfig.json'),
+  'core': createProject('packages/core/tsconfig.json'),
+  'microservices': createProject('packages/microservices/tsconfig.json'),
+  'websockets': createProject('packages/websockets/tsconfig.json'),
+  'testing': createProject('packages/testing/tsconfig.json'),
+  'platform-express': createProject('packages/platform-express/tsconfig.json'),
+  'platform-fastify': createProject('packages/platform-fastify/tsconfig.json'),
+  'platform-socket.io': createProject(
+    'packages/platform-socket.io/tsconfig.json',
+  ),
+  'platform-ws': createProject('packages/platform-ws/tsconfig.json'),
+};
+
+const modules = Object.keys(packages);
+
+const distId = process.argv.indexOf('--dist');
+const dist = distId < 0 ? source : process.argv[distId + 1];
+
+/**
+ * Watches the packages/* folder and
+ * builds the package on file change
+ */
+function defaultTask() {
+  log.info('Watching files..');
+  modules.forEach(packageName => {
+    watch(
+      [`${source}/${packageName}/**/*.ts`, `${source}/${packageName}/*.ts`],
+      series(packageName),
+    );
+  });
+}
+
+/**
+ * Builds the given package
+ * @param packageName The name of the package
+ */
+function buildPackage(packageName: string) {
+  return packages[packageName]
+    .src()
+    .pipe(packages[packageName]())
+    .pipe(dest(`${dist}/${packageName}`));
+}
+
+/**
+ * Builds the given package and adds sourcemaps
+ * @param packageName The name of the package
+ */
+function buildPackageDev(packageName: string) {
+  return packages[packageName]
+    .src()
+    .pipe(sourcemaps.init())
+    .pipe(packages[packageName]())
+    .pipe(
+      sourcemaps.mapSources(
+        (sourcePath: string) => './' + sourcePath.split('/').pop(),
+      ),
+    )
+    .pipe(sourcemaps.write('.', {}))
+    .pipe(dest(`${dist}/${packageName}`));
+}
+
+modules.forEach(packageName => {
+  task(packageName, () => buildPackage(packageName));
+  task(`${packageName}:dev`, () => buildPackageDev(packageName));
+});
+
+task('common:dev', series(modules.map(packageName => `${packageName}:dev`)));
+task('build', series(modules));
+task('build:dev', series('common:dev'));
+task('default', defaultTask);