build: fix invalid npm "build" script (#15182)

package.json

@@ -12,7 +12,7 @@
     "node": ">= 5.4.1"
   },
   "scripts": {
-    "build": "gulp :publish:build-releases",
+    "build": "gulp build-release-packages",
     "dev-app": "gulp serve:devapp",
     "test": "gulp test",
     "lint": "gulp lint",

tools/gulp/gulpfile.ts

@@ -1,7 +1,9 @@
-import {createPackageBuildTasks} from 'material2-build-tools';
+import {task} from 'gulp';
+import {createPackageBuildTasks, sequenceTask} from 'material2-build-tools';
 import {
-  cdkPackage,
+  allBuildPackages,
   cdkExperimentalPackage,
+  cdkPackage,
   examplesPackage,
   materialExperimentalPackage,
   materialPackage,
@@ -26,3 +28,9 @@ import './tasks/lint';
 import './tasks/material-release';
 import './tasks/unit-test';
 import './tasks/universal';
+
+/** Task that builds all available release packages. */
+task('build-release-packages', sequenceTask(
+  'clean',
+  allBuildPackages.map(buildPackage => `${buildPackage.name}:build-release`)
+));

tools/gulp/tasks/ci.ts

@@ -1,6 +1,4 @@
 import {task} from 'gulp';
-import {sequenceTask} from 'material2-build-tools';
-import {allBuildPackages} from '../packages';
 
 task('ci:lint', ['lint']);
 
@@ -18,7 +16,4 @@ task('ci:aot', ['build-aot:no-release-build']);
 task('ci:prerender', ['prerender']);
 
 /** Task that builds all release packages. */
-task('ci:build-release-packages', sequenceTask(
-  'clean',
-  allBuildPackages.map(buildPackage => `${buildPackage.name}:build-release`)
-));
+task('ci:build-release-packages', ['build-release-packages']);