refactor(@angular-devkit/schematics-cli): rename schematic template files with a template extension

Files that contain template instructions should include a `.template` extension to prevent them from
being treated as TypeScript/JSON/etc. files. Not doing so can result in parse errors or other failures
when the files are incorrectly processed by other tools.

Author: clydin

packages/angular_devkit/schematics_cli/blank/factory.ts

@@ -13,10 +13,10 @@ import {
   SchematicsException,
   Tree,
   apply,
+  applyTemplates,
   chain,
   mergeWith,
   move,
-  template,
   url,
 } from '@angular-devkit/schematics';
 import { NodePackageInstallTask } from '@angular-devkit/schematics/tasks';
@@ -63,7 +63,7 @@ export default function (options: Schema): Rule {
     } catch {}
 
     let source = apply(url('./schematic-files'), [
-      template({
+      applyTemplates({
         ...options,
         coreVersion,
         schematicsVersion,
@@ -77,7 +77,8 @@ export default function (options: Schema): Rule {
     if (!collectionPath) {
       collectionPath = normalize('/' + options.name + '/src/collection.json');
       source = apply(url('./project-files'), [
-        template({
+        move('package.json', 'package.json.template'),
+        applyTemplates({
           ...(options as object),
           coreVersion,
           schematicsVersion,

packages/angular_devkit/schematics_cli/blank/project-files/__dot__gitignore renamed to packages/angular_devkit/schematics_cli/blank/project-files/.gitignore.template

@@ -10,10 +10,10 @@ import { strings } from '@angular-devkit/core';
 import {
   Rule,
   apply,
+  applyTemplates,
   mergeWith,
   move,
   partitionApplyMerge,
-  template,
   url,
 } from '@angular-devkit/schematics';
 import { NodePackageInstallTask } from '@angular-devkit/schematics/tasks';
@@ -28,9 +28,11 @@ export default function (options: Schema): Rule {
 
     return mergeWith(
       apply(url('./files'), [
+        // The `package.json` name is kept to allow renovate to update the dependency versions
+        move('package.json', 'package.json.template'),
         partitionApplyMerge(
           (p) => !/\/src\/.*?\/files\//.test(p),
-          template({
+          applyTemplates({
             ...options,
             coreVersion,
             schematicsVersion,