fix(core): fix resolving projects for imports to '.' (#3839)

Author: FrozenPandaz

packages/workspace/src/utils/fileutils.spec.ts

@@ -1,6 +1,6 @@
 import { fs, vol } from 'memfs';
 import { stripIndents } from '@angular-devkit/core/src/utils/literals';
-import { createDirectory } from './fileutils';
+import { createDirectory, isRelativePath } from './fileutils';
 
 jest.mock('fs', () => require('memfs').fs);
 jest.mock('./app-root', () => ({ appRootPath: '/root' }));
@@ -35,4 +35,18 @@ describe('fileutils', () => {
       expect(fs.statSync('/root/b/c').isDirectory()).toBe(true);
     });
   });
+
+  describe('isRelativePath()', () => {
+    it('should return true for deeper imports', () => {
+      expect(isRelativePath('.')).toEqual(true);
+      expect(isRelativePath('./file')).toEqual(true);
+    });
+    it('should return true for upper imports', () => {
+      expect(isRelativePath('../file')).toEqual(true);
+    });
+    it('should return false for absolute imports', () => {
+      expect(isRelativePath('file')).toEqual(false);
+      expect(isRelativePath('@nrwl/angular')).toEqual(false);
+    });
+  });
 });

packages/workspace/src/utils/fileutils.ts

@@ -112,5 +112,5 @@ export function renameSync(
 }
 
 export function isRelativePath(path: string): boolean {
-  return path.startsWith('./') || path.startsWith('../');
+  return path === '.' || path.startsWith('./') || path.startsWith('../');
 }