add debug option

Author: Stanley Stuart

bin/ember-cli-migrator

@@ -7,7 +7,7 @@
 var program = require('commander');
 var EmberMigrator = require('../lib/ember-migrator');
 var path = require('path');
-var package = require('../package')
+var package = require('../package');
 
 program
   .version(package.version)
@@ -17,6 +17,7 @@ program
   .option('-t, --target [target_directory]',  'Directory to output result of migration')
   .option('-f, --force', 'Migrate even if output files exist')
   .option('--ignore-subdirs [comma_separated_dirs]', 'Sub-directories in source to ignore')
+  .option('-d, --debug', 'print debugging information')
   .parse(process.argv);
 
 var curDir = './';
@@ -28,7 +29,8 @@ var migrator = new EmberMigrator({
   forceOutput: program.force,
   ignoreDirs: program.ignoreSubdirs,
   appName: program.emberCliAppName,
-  rootAppName: program.global
+  rootAppName: program.global,
+  debug: program.debug
 });
 
 migrator.run();

lib/ember-migrator.js

@@ -17,6 +17,7 @@ var lodash = require('lodash');
 // Recast helpers
 
 function EmberMigrator(options){
+  this.debugging = options.debug || false;
   this.testing = options.testing || false;
   // Directory to process
   this.inputDirectory = options.inputDirectory;
@@ -53,6 +54,15 @@ function EmberMigrator(options){
 
 EmberMigrator.prototype = Object.create(null);
 
+EmberMigrator.prototype.debug = function(message, condition) {
+  if (arguments.length === 1) {
+    condition = true;
+  }
+  if (condition && this.debugging) {
+    this.writeLine(chalk.yellow('DEBUG: ' + message));
+  }
+};
+
 EmberMigrator.prototype.run = function EmberMigrator_run(){
   var self = this;
   var files = walk(this.inputDirectory);
@@ -63,6 +73,7 @@ EmberMigrator.prototype.run = function EmberMigrator_run(){
   // Here is where we control what files we will process in the input directory
   files.forEach(function (file) {
     var fullPath = path.join(self.inputDirectory, file);
+    self.debug('Processing file: ' + file);
     var isDir = fs.lstatSync(fullPath).isDirectory();
     var isJS = string.endsWith(file, '.js');
     var isHbs = string.endsWith(file, '.handlebars') || string.endsWith(file, '.hbs');
@@ -108,6 +119,7 @@ EmberMigrator.prototype.run = function EmberMigrator_run(){
   }, this);
 
   hbsFiles.forEach(function (filePath) {
+
     var fullPath = path.join(self.inputDirectory, filePath);
     var dirs = filePath.split('/');
     if (dirs[0] !== 'templates') {
@@ -169,10 +181,10 @@ EmberMigrator.prototype.run = function EmberMigrator_run(){
     execSync("git commit -m \"auto-commit from ember-cli-migrator\"");
   }
   Object.keys(this.splitFiles).forEach(function(key) {
+    self.debug('Processing split file: ' + key);
     self.processFile(self.splitFiles[key]);
   });
 
-  console.log('flush');
   this.flushConvertedFiles(this.splitFiles);
 
   if (!this.testing) {
@@ -373,7 +385,7 @@ EmberMigrator.prototype.convertFile = function(typedExport){
 
   // for some reason there is a rogue semicolon
   code = code.replace(/\n;\n/, '\n');
-  
+
   code = code.replace(new RegExp(this.rootAppName + "\\.", 'g'), '');
   code = code.replace(/Em\./g, 'Ember.');
   // For any module imported that used to be a window global
@@ -392,6 +404,7 @@ EmberMigrator.prototype.convertFile = function(typedExport){
 EmberMigrator.prototype.flushConvertedFiles = function(splitFiles){
   //Create directory for every path in our app including unknown folders
   Object.keys(splitFiles).forEach(function(file) {
+    this.debug('flushing converted file: ' + file);
     var typedExport = splitFiles[file];
     var folder = typedExport.outputFolderPath();
     mkdirp.sync(folder);