quality improvements for the cmd

cmd/cmd.js

@@ -330,33 +330,33 @@ class Cmd {
       .option('--framework <framework>', 'UI framework to use. (default: react)')
       .option('--contract-language <language>', 'Language used for the smart contract generation (default: solidity)')
       .option('--overwrite', 'Overwrite existing files. (default: false)')
-
+      .description(__('Generates a contract and a function tester for you\nExample: ContractName field1:uint field2:address --contract-language solidity --framework react'))
       .action(function(contract, fields, options) {
         if (contract === undefined) {
           console.log("contract name is required");
           process.exit(0);
         }
 
-        const fieldMapping = {};
+        let fieldMapping = {};
         if (fields.length > 0) {
           const typeRegex = /^(u?int[0-9]{0,3}(\[\])?|string|bool|address|bytes[0-9]{0,3})(\[\])?$/;
           const varRegex = /^[a-zA-Z][a-zA-Z0-9_]*$/;
-
-          fields.forEach(curr => {
+          fieldMapping = fields.reduce((acc, curr) => {
             const c = curr.split(':');
 
             if (!varRegex.test(c[0])) {
               console.log("Invalid variable name: " + c[0]);
-              process.exit(0);
+              process.exit(1);
             }
 
             if (!typeRegex.test(c[1])) {
               console.log("Invalid datatype: " + c[1] + " - The dApp generator might not support this type at the moment");
-              process.exit(0);
+              process.exit(1);
             }
 
-            fieldMapping[c[0]] = c[1];
-          });
+            acc[c[0]] = c[1];
+            return acc;
+          }, {});
         }
 
         checkDeps();

cmd/cmd_controller.js

@@ -496,6 +496,11 @@ class EmbarkController {
       }
     ], function(_err) {
       engine.logger.info(__("finished generating the UI").underline);
+      engine.logger.info(__("You can add the UI to your Dapp easily by adding the following in embark.json:"));
+      engine.logger.info((`  "js/${options.contract}.js": [\n` +
+        `    "${options.contract}.js"\n` +
+        `  ],\n` +
+        `  "index.html": "app/${options.contract}.html"`).cyan);
       process.exit();
     });  
   }