ng build --prod not ignoring .spec.ts in subdirectories  #4673

Please provide us with the following information:

OS

Mac OSX El Capitan 10.11.6

Versions.

@angular/cli: 1.0.0-beta.30
node: 6.9.1
os: darwin x64
@angular/common: 2.4.6
@angular/compiler: 2.4.6
@angular/core: 2.4.6
@angular/forms: 2.4.6
@angular/http: 2.4.6
@angular/platform-browser: 2.4.6
@angular/platform-browser-dynamic: 2.4.6
@angular/router: 3.4.6
@angular/cli: 1.0.0-beta.30
@angular/compiler-cli: 2.4.6

Repro steps.

1. Create a test with @component test component declared inside the .spec.ts that is within a directory nested below src. i.e src/app/test
2. Run ng build --prod

Was this an app that wasn't created using the CLI? What change did you do on your code? etc.
Upgraded from beta 28 to beta 30

The log given by the failure.

ERROR in Cannot determine the module for class TestSelectComponent in /Users/nate.danner/Desktop/aotSpecTest/src/app/test/app.component.spec.ts!
Cannot determine the module for class TestSelectComponent in /Users/nate.danner/Desktop/aotSpecTest/src/testing/test2/test-select.component.ts!

ERROR in ./src/main.ts
Module not found: Error: Can't resolve './$$_gendir/app/app.module.ngfactory' in '/Users/nate.danner/Desktop/aotSpecTest/src'
@ ./src/main.ts 4:0-74
@ multi ./src/main.ts

Mention any other details that might be useful.

.spec.ts files lower than one directory from src are not ignored by the
angular-cli/packages/@angular/cli/models/webpack-configs/typescript.ts

• This currently creates the exclude = [ '**/*.spec.ts' ]; which is passed to the AotPlugin
• The exclude path is used here

  angular-cli/packages/@ngtools/webpack/src/plugin.ts

  Line 119 in 9548d90

  exclude.forEach((pattern: string) => {

// exclude is always set true
if (options.hasOwnProperty('exclude')) {
let exclude: string[] = typeof options.exclude == 'string'
? [options.exclude as string] : (options.exclude as string[]);

  exclude.forEach((pattern: string) => {
    const basePathPattern = '(' + basePath.replace(/\\/g, '/')
        .replace(/[\-\[\]\/{}()+?.\\^$|*]/g, '\\$&') + ')?';
    pattern = pattern
      // Replace windows path separators with forward slashes.
      .replace(/\\/g, '/')
      // Escape characters that are used normally in regexes, except stars.
      .replace(/[\-\[\]{}()+?.\\^$|]/g, '\\$&')
      // Two stars replacement.
      .replace(/\*\*/g, '(?:.*)')
      // One star replacement.
      .replace(/\*/g, '(?:[^/]*)')
      // Escape characters from the basePath and make sure it's forward slashes.
      .replace(/^/, basePathPattern);

    const re = new RegExp('^' + pattern + '$');
    fileNames = fileNames.filter(x => !x.replace(/\\/g, '/').match(re));
  });
} else {
  fileNames = fileNames.filter(fileName => !/\.spec\.ts$/.test(fileName));
}

if I comment out everything and use "fileNames = fileNames.filter(fileName => !/.spec.ts$/.test(fileName));" locally then the spec files are ignored as they were before.

• .spec.ts files lower than one directory from src are not ignored by the AoT compilation
• The second issue is components that are only used for testing and not included in the app.module.ts are also picked up by the AoT compilation and throw error.

Example Project
aotSpecTest.zip