fix(@schematics/angular): Add skip git option to prevent creating gitignore file

fixes angular/angular-cli#7686

Author: Brocco

packages/schematics/angular/application/index.ts

@@ -94,6 +94,7 @@ export default function (options: ApplicationOptions): Rule {
       mergeWith(
         apply(url('./files'), [
           options.minimal ? filter(minimalPathFilter) : noop(),
+          options.skipGit ? filter(path => !path.endsWith('gitignore')) : noop(),
           template({
             utils: stringUtils,
             'dot': '.',

packages/schematics/angular/application/index_spec.ts

@@ -91,4 +91,12 @@ describe('Application Schematic', () => {
     const routingModuleContent = getFileContent(tree, '/foo/src/app/app-routing.module.ts');
     expect(routingModuleContent).toMatch(/RouterModule.forRoot\(routes\)/);
   });
+
+  it('should handle the skip git flag', () => {
+    const options = { ...defaultOptions, skipGit: true };
+
+    const tree = schematicRunner.runSchematic('application', options);
+    const files = tree.files;
+    expect(files.indexOf('/foo/.gitignore')).toEqual(-1);
+  });
 });

packages/schematics/angular/application/schema.d.ts

@@ -25,11 +25,11 @@ export interface Schema {
     /**
      * Specifies the view encapsulation strategy.
      */
-    viewEncapsulation?: ('Emulated' | 'Native' | 'None');
+    viewEncapsulation?: ("Emulated" | "Native" | "None");
     /**
      * Specifies the change detection strategy.
      */
-    changeDetection?: ('Default' | 'OnPush');
+    changeDetection?: ("Default" | "OnPush");
     version?: string;
     routing?: boolean;
     /**
@@ -44,6 +44,10 @@ export interface Schema {
      * Skip creating spec files.
      */
     skipTests?: boolean;
+    /**
+     * Skip initializing a git repository.
+     */
+    skipGit?: boolean;
     /**
      * Should create a minimal app.
      */

packages/schematics/angular/application/schema.json

@@ -69,6 +69,12 @@
       "default": false,
       "alias": "st"
     },
+    "skipGit": {
+      "description": "Skip initializing a git repository.",
+      "type": "boolean",
+      "default": false,
+      "alias": "sg"
+    },
     "minimal": {
       "description": "Should create a minimal app.",
       "type": "boolean",