fix(@angular/cli): if user pass a full path, use the path (#6341)

Author: hansl

packages/@angular/cli/utilities/find-parent-module.ts

@@ -26,7 +26,7 @@ export default function findParentModule(
     if (files.length === 1) {
       return path.join(pathToCheck, files[0]);
     } else if (files.length > 1) {
-      throw new SilentError(`Multiple module files found: ${pathToCheck.replace(sourceRoot, '')}`);
+      throw new SilentError(`Multiple module files found: ${JSON.stringify(files)}`);
     }
 
     // move to parent directory

packages/@angular/cli/utilities/resolve-module-file.ts

@@ -7,17 +7,19 @@ export function resolveModulePath(
   let baseModuleName = moduleNameFromFlag;
   let parentFolders = '';
 
+  // If it's a full path from the cwd, we use it as is.
+  if (fs.existsSync(moduleNameFromFlag) && fs.statSync(moduleNameFromFlag).isFile()) {
+    return path.resolve(moduleNameFromFlag);
+  }
+
   if (baseModuleName.includes(path.sep)) {
     const splitPath = baseModuleName.split(path.sep);
     baseModuleName = splitPath.pop();
     parentFolders = splitPath.join(path.sep);
   }
 
   if (baseModuleName.includes('.')) {
-    baseModuleName = baseModuleName
-      .split('.')
-      .filter(part => part !== 'module' && part !== 'ts')
-      .join('.');
+    baseModuleName = baseModuleName.replace(/(\.module)?(\.ts)?$/, '');
   }
 
   const baseModuleWithFileSuffix = `${baseModuleName}.module.ts`;