feat(version): display verions of @angular/* and @ngtools/*

Fixes #3589

Author: Brocco

packages/angular-cli/commands/version.ts

@@ -14,12 +14,14 @@ const VersionCommand = Command.extend({
   }],
 
   run: function (options: any) {
-    const versions: any = process.versions;
+    let versions: any = process.versions;
     const pkg = require(path.resolve(__dirname, '..', 'package.json'));
+    const projPkg = require(path.resolve(this.project.root, 'package.json'));
 
-    versions['os'] = process.platform + ' ' + process.arch;
+    versions.os = process.platform + ' ' + process.arch;
 
     const alwaysPrint = ['node', 'os'];
+    const roots = ['@angular/', '@ngtools/'];
 
     let ngCliVersion = pkg.version;
     if (!__dirname.match(/node_modules/)) {
@@ -33,15 +35,50 @@ const VersionCommand = Command.extend({
       ngCliVersion = `local (v${pkg.version}, branch: ${gitBranch})`;
     }
 
+    roots.forEach(root => {
+      versions = Object.assign(versions, this.getModules(projPkg, root));
+    })
+    // versions = Object.assign(versions, this.getModules(pkg, '@angular/'), this.getModules(pkg, '@ngTools/'));
+    // console.log(versions);
     this.printVersion('angular-cli', ngCliVersion);
 
     for (const module of Object.keys(versions)) {
-      if (options.verbose || alwaysPrint.indexOf(module) > -1) {
+      let isRoot = false;
+      roots.forEach(root => {
+        if (module.startsWith(root)) {
+          isRoot = true;
+        }
+      });
+      if (options.verbose || alwaysPrint.indexOf(module) > -1 || isRoot) {
         this.printVersion(module, versions[module]);
       }
     }
   },
 
+  getModules: function(pkg: any, prefix: string): any {
+    const modules: any = {};
+    if (pkg.dependencies) {
+      for(let key of Object.keys(pkg.dependencies)) {
+        if (key && key.startsWith(prefix)){
+          modules[key] = this.getVersion(key);
+        }
+      }
+    }
+    if (pkg.devDependencies) {
+      for(let key of Object.keys(pkg.devDependencies)) {
+        if (key && key.startsWith(prefix)){
+          modules[key] = this.getVersion(key);
+        }
+      }
+    }
+    return modules;
+  },
+
+  getVersion: function(moduleName: string): string {
+    const modulePkg = require(path.resolve(this.project.root, 'node_modules', moduleName, 'package.json'));
+    return modulePkg.version;
+  }
+
   printVersion: function (module: string, version: string) {
     this.ui.writeLine(module + ': ' + version);
   }