Create missing exception classes

Author: GiladShoham

src/exceptions/index.js

@@ -2,10 +2,14 @@ import ComponentNotExistsException from './component-not-exists';
 import ComponentNotExistsInException from './component-not-exists-in';
 import NoConsumerFoundException from './no-consumer-found';
 import MultipleScopesNoDefException from './multiple-scopes-no-def';
+import PackageJsonNotFound from './package-json-not-found';
+import PackageJsonAlreadyExists from './package-json-already-exists';
 
 export {
   ComponentNotExistsException,
   ComponentNotExistsInException,
   NoConsumerFoundException,
   MultipleScopesNoDefException,
+  PackageJsonNotFound,
+  PackageJsonAlreadyExists,
 };

src/exceptions/package-json-already-exists.js

@@ -0,0 +1,8 @@
+export default class PackageJsonAlreadyExists extends Error {
+  constructor(packageJsonPath) {
+    super(`The package.json in path "${packageJsonPath}" already exists
+    `);
+    this.name = 'PackageJsonAlreadyExistsInException';
+    this.code = 'PJSONEX';
+  }
+}

src/exceptions/package-json-not-found.js

@@ -0,0 +1,8 @@
+export default class PackageJsonNotFound extends Error {
+  constructor(packageJsonPath) {
+    super(`The package.json in path "${packageJsonPath}" has not found
+    `);
+    this.name = 'PackageJsonNotExistsInException';
+    this.code = 'ENOENT';
+  }
+}

src/package-json/package-json.js

@@ -10,9 +10,10 @@ function composePath(componentRootFolder: string) {
 }
 
 function hasExisting(componentRootFolder: string, throws?: boolean = false): boolean {
-  const exists = fs.pathExistsSync(composePath(componentRootFolder));
+  const packageJsonPath = composePath(componentRootFolder);
+  const exists = fs.pathExistsSync(packageJsonPath);
   if (!exists && throws) {
-    throw (new PackageJsonNotFound());
+    throw (new PackageJsonNotFound(packageJsonPath));
   }
   return exists;
 }
@@ -68,7 +69,7 @@ export default class PackageJson {
 
   async write({ override = true }: { override?: boolean }): Promise<boolean> {
     if (!override && hasExisting(this.componentRootFolder)) {
-      return Promise.reject(new PackageJsonAlreadyExists());
+      return Promise.reject(new PackageJsonAlreadyExists(this.componentRootFolder));
     }
 
     const plain = this.toPlainObject();