feat(build): add support for assets array (angular#2570)

Author: filipesilva

Diff for: package.json

@@ -56,7 +56,6 @@
     "chalk": "^1.1.3",
     "common-tags": "^1.3.1",
     "compression-webpack-plugin": "github:webpack/compression-webpack-plugin#7e55907cd54a2e91b96d25a660acc6a2a6453f54",
-    "copy-webpack-plugin": "^3.0.1",
     "core-js": "^2.4.0",
     "css-loader": "^0.23.1",
     "denodeify": "^1.2.1",

Diff for: packages/angular-cli/blueprints/ng2/files/__path__/assets/.gitignore

@@ -7,7 +7,10 @@
     {
       "root": "<%= sourceDir %>",
       "outDir": "dist",
-      "assets": "assets",
+      "assets": [
+        "assets",
+        "favicon.ico"
+      ],
       "index": "index.html",
       "main": "main.ts",
       "test": "test.ts",

Diff for: packages/angular-cli/blueprints/ng2/files/angular-cli.json

@@ -32,7 +32,12 @@
             "default": "dist/"
           },
           "assets": {
-            "type": "string"
+            "fixme": true,
+            "type": "array",
+            "items": {
+              "type": "string"
+            },
+            "default": [] 
           },
           "index": {
             "type": "string",

Diff for: packages/angular-cli/lib/config/schema.json

@@ -128,6 +128,12 @@ export abstract class NonLeafSchemaTreeNode<T> extends SchemaTreeNode<T> {
   // Helper function to create a child based on its schema.
   protected _createChildProperty<T>(name: string, value: T, forward: SchemaTreeNode<T>,
                                     schema: Schema, define = true): SchemaTreeNode<T> {
+
+    // TODO: fix this
+    if (schema['fixme'] && typeof value === 'string') {
+      value = <T>(<any>[ value ]);
+    }
+
     const type = schema['type'];
     let Klass: any = null;
 

Diff for: packages/angular-cli/models/json-schema/schema-tree.ts

@@ -1,8 +1,8 @@
 import * as webpack from 'webpack';
 import * as path from 'path';
+import {GlobCopyWebpackPlugin} from '../plugins/glob-copy-webpack-plugin';
 import {BaseHrefWebpackPlugin} from '@angular-cli/base-href-webpack';
 
-const CopyWebpackPlugin = require('copy-webpack-plugin');
 const HtmlWebpackPlugin = require('html-webpack-plugin');
 
 
@@ -127,12 +127,10 @@ export function getWebpackCommonConfig(
         filename: 'inline.js',
         sourceMapFilename: 'inline.map'
       }),
-      new CopyWebpackPlugin([{
-        context: path.resolve(appRoot, appConfig.assets),
-        from: { glob: '**/*', dot: true },
-        ignore: [ '.gitkeep' ],
-        to: path.resolve(projectRoot, appConfig.outDir, appConfig.assets)
-      }])
+      new GlobCopyWebpackPlugin({
+        patterns: appConfig.assets,
+        globOptions: {cwd: appRoot, dot: true, ignore: '**/.gitkeep'}
+      })
     ],
     node: {
       fs: 'empty',

Diff for: packages/angular-cli/models/webpack-build-common.ts

@@ -1,22 +1,17 @@
 import * as path from 'path';
 const OfflinePlugin = require('offline-plugin');
-const CopyWebpackPlugin = require('copy-webpack-plugin');
+import { GlobCopyWebpackPlugin } from '../plugins/glob-copy-webpack-plugin';
 import { PrerenderWebpackPlugin } from '../utilities/prerender-webpack-plugin';
 
 export const getWebpackMobileConfigPartial = function (projectRoot: string, appConfig: any) {
   // Hardcoded files and paths here should be part of appConfig when
   // reworking the mobile app functionality
   return {
     plugins: [
-      new CopyWebpackPlugin([
-        {
-          from: path.resolve(projectRoot, appConfig.root, 'icons'),
-          to: path.resolve(projectRoot, appConfig.outDir, 'icons')
-        }, {
-          from: path.resolve(projectRoot, appConfig.root, 'manifest.webapp'),
-          to: path.resolve(projectRoot, appConfig.outDir)
-        }
-      ]),
+      new GlobCopyWebpackPlugin({
+        patterns: [ 'icons', 'manifest.webapp'],
+        globOptions: {cwd: appConfig.root, dot: true, ignore: '**/.gitkeep'}
+      }),
       new PrerenderWebpackPlugin({
         templatePath: 'index.html',
         configPath: path.resolve(projectRoot, appConfig.root, 'main-app-shell.ts'),

Diff for: packages/angular-cli/models/webpack-build-mobile.ts

@@ -39,7 +39,6 @@
     "chalk": "^1.1.3",
     "common-tags": "^1.3.1",
     "compression-webpack-plugin": "github:webpack/compression-webpack-plugin#7e55907cd54a2e91b96d25a660acc6a2a6453f54",
-    "copy-webpack-plugin": "^3.0.1",
     "core-js": "^2.4.0",
     "css-loader": "^0.23.1",
     "denodeify": "^1.2.1",

Diff for: packages/angular-cli/package.json

@@ -0,0 +1,51 @@
+import * as fs from 'fs';
+import * as path from 'path';
+import * as glob from 'glob';
+import * as denodeify from 'denodeify';
+
+const globPromise = <any>denodeify(glob);
+const statPromise = <any>denodeify(fs.stat);
+
+export interface GlobCopyWebpackPluginOptions {
+  patterns: string[];
+  globOptions: any;
+}
+
+export class GlobCopyWebpackPlugin {
+  constructor(private options: GlobCopyWebpackPluginOptions) { }
+
+  apply(compiler: any): void {
+    let { patterns, globOptions } = this.options;
+    let context = globOptions.cwd || compiler.options.context;
+
+    // convert dir patterns to globs
+    patterns = patterns.map(pattern => fs.statSync(path.resolve(context, pattern)).isDirectory()
+      ? pattern += '/**/*'
+      : pattern
+    );
+
+    // force nodir option, since we can't add dirs to assets
+    globOptions.nodir = true;
+
+    compiler.plugin('emit', (compilation: any, cb: any) => {
+      let globs = patterns.map(pattern => globPromise(pattern, globOptions));
+
+      let addAsset = (relPath: string) => compilation.assets[relPath]
+        // don't re-add to assets
+        ? Promise.resolve()
+        : statPromise(path.resolve(context, relPath))
+          .then((stat: any) => compilation.assets[relPath] = {
+            size: () => stat.size,
+            source: () => fs.readFileSync(path.resolve(context, relPath))
+          });
+
+      Promise.all(globs)
+        // flatten results
+        .then(globResults => [].concat.apply([], globResults))
+        // add each file to compilation assets
+        .then(relPaths => relPaths.forEach((relPath: string) => addAsset(relPath)))
+        .catch((err) => compilation.errors.push(err))
+        .then(cb);
+    });
+  }
+}

Diff for: packages/angular-cli/plugins/glob-copy-webpack-plugin.ts

@@ -1,13 +1,22 @@
 import {writeFile, expectFileToExist, expectFileToMatch} from '../../utils/fs';
 import {ng} from '../../utils/process';
+import {updateJsonFile} from '../../utils/project';
 import {expectToFail} from '../../utils/utils';
 
 
 export default function() {
   return writeFile('src/assets/.file', '')
     .then(() => writeFile('src/assets/test.abc', 'hello world'))
     .then(() => ng('build'))
+    .then(() => expectFileToExist('dist/favicon.ico'))
     .then(() => expectFileToExist('dist/assets/.file'))
     .then(() => expectFileToMatch('dist/assets/test.abc', 'hello world'))
-    .then(() => expectToFail(() => expectFileToExist('dist/assets/.gitkeep')));
+    .then(() => expectToFail(() => expectFileToExist('dist/assets/.gitkeep')))
+    // doesn't break beta.16 projects
+    .then(() => updateJsonFile('angular-cli.json', configJson => {
+      const app = configJson['apps'][0];
+      app['assets'] = 'assets';
+    }))
+    .then(() => expectFileToExist('dist/assets/.file'))
+    .then(() => expectFileToMatch('dist/assets/test.abc', 'hello world'));
 }