validate package names

Author: ShMcK

src/create/create.js

@@ -0,0 +1,8 @@
+"use strict";
+var validate_1 = require('./validate');
+function create(name) {
+    validate_1.validatePackageName(name);
+    console.log('Creating demo tutorial...');
+}
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.default = create;

src/create/validate.js

@@ -0,0 +1,24 @@
+"use strict";
+var chalk = require('chalk');
+var validateNpm = require("validate-npm-package-name");
+var process = require('process');
+function validatePackageName(name) {
+    var validated = validateNpm(name);
+    if (!validated.validForNewPackages || !validated.validForOldPackages) {
+        if (validated.errors) {
+            validated.errors.forEach(function (error) {
+                console.log(chalk.red('Package ' + error));
+            });
+        }
+        if (validated.warnings) {
+            validated.warnings.forEach(function (warning) {
+                console.log(chalk.yellow('Package ' + warning));
+            });
+        }
+        if (!validated.errors && !validated.warnings) {
+            console.log(chalk.red("\n        Invalid package name.\n        Try using kebab-case (for example: \"my-package-name\")\n        "));
+        }
+        process.exit(1);
+    }
+}
+exports.validatePackageName = validatePackageName;