Few improvements

README.md

@@ -1,6 +1,8 @@
 Duster.js - Node script to watch & precompile directory of dustjs templates
 ==============
 
+Based on the original script by Dan McGrady http://dmix.ca
+
 A simple Node script <a href="#">Duster.js</a> to watch a directory of .dust templates and compile them into .js files which can be included into an HTML file.
 
 Why? The dust.js documentation does not mentioned a clear way to work with dust templates in a purely client-side approach, instead focusing on server-side node.js applications.
@@ -10,33 +12,41 @@ For my backbone.js app, the only option was to include the dust-full.js file and
 So I wrote a script to pre-compile dust.js files whenever they are modified in a folder.
 
 ## Install
-Download duster.js to your project root folder and install dependencies:
+Clone this repository
+
+Run the installation 
+    $ npm install
 
-    npm install dustjs-linkedin
-    npm install watch-tree
+Get the growl app from the App Store (*not free) or from here https://bitbucket.org/pmetzger/growl/downloads
+
+Be sure to install growlnotify plugin
 
 ## Usage
-Create dust.js templates in ./src/dusts/ with the file extension .dust and create ./public/dusts directory where files will be compiled to, then run watcher script:
+Create a file named .dusterjs in your home directory and add the input and output paths to it. The file is expected to be in YAML format
 
-    $ node duster.js
+Example: 
 
-You can modify folder paths in the duster.js file
+    ---
+    input_path:   /Users/<username>/src.dust/
+    output_path:  /Users/<username>/dust/
+
+Create dust.js templates in the <input_path> dir with the file extension .dust and create <output_path> directory where files will be compiled to, then run watcher script:
+
+    $ node duster.js
 
 ## Example:
-    ./src/dusts/tweet.dust
-    ./src/dusts/user.dust
+    <input_path>/tweet.dust
+    <input_path>/user.dust
 
 Compiles to:
 
-    ./public/dusts/tweet.js
-    ./public/dusts/user.js
+    <output_path>/tweet.js
+    <output_path>/user.js
 
-Then you include them in the html:
+## Changes by Suresh Jayanty
 
-    <script src="dust-core-1.0.0.min.js"></script>
-    <script src="tweet.js"></script>
-    <script src="user.js"></script>
+* Added support for growl notifications
 
-I then use Jammit to concatenate all the JS files before production deployment.
+* Added support for settings file
 
-by Dan McGrady http://dmix.ca
+* Ignoring .swp files created when some one uses vim to edit the dust files

duster.js

@@ -1,32 +1,146 @@
 // duster.js  
 // Watch directory of dust.js templates and automatically compile them
 // by Dan McGrady http://dmix.ca
+// slight modifications by Suresh Jayanty
+var fs = require('fs'),
+	dust = require('dustjs-linkedin'),
+	watch = require('watch'),
+	yaml = require('js-yaml'),
+	colors = require('colors'),
+	childprocess = require('child_process'),
+	file_options = {
+		'input_path': './src.dust',
+		'output_path': './dust'
+	},
+	user_settings_file = process.env['HOME'] + '/.dusterjs',
+	svnRegex = /\.svn/,
+	swpRegex = /\.swp/,
+	gitRegex = /\.git/
+	dustRegex = /\.dust$/;
 
-var input_path = "./dusts"; // directory of dust templates are stored with .dust file extension
-var output_path = "./javascripts/dusts/"; // directory where the compiled .js files should be saved to
 
-var fs = require('fs');
-var dust = require('dustjs-linkedin');
-var watch = require('watch');
+function growl(message, sticky) {
+	var command = '/usr/local/bin/growlnotify -p 1 -m "' + message + '"',
+		growlnotice;
+	if (sticky) {
+		command += ' -s';
+	}
+
+	growlnotice = childprocess.exec(command, function(error, stdout, stderr) {});
+	growlnotice.on('exit', function(code) {});
+}
 
 function compile_dust(path, curr, prev) {
-  fs.readFile(path, function(err, data) {
-    if (err) throw err;
+	if (swpRegex.exec(path)) {
+		console.log(('Ignoring file: ' + path).red);
+		return;
+	}
+	if (svnRegex.exec(path)) {
+		console.log(('Ignoring file: ' + path).red);
+		return;
+	}
+	if (gitRegex.exec(path)) {
+		console.log(('Ignoring file: ' + path).red);
+		return;
+	}
+	fs.readFile(path, function(err, data) {
+		if (err) {
+
+			growl('Error: ' + err + ' : ' + path , true);
+			throw err;
+		}
+
+		var filename = path.split("/").reverse()[0].replace(".dust", "");
+		var filepath = file_options.output_path +  '/' + filename + ".js";
+		var compiled = '';
+		try {
+			compiled = dust.compile(new String(data), filename);
 
-    var filename = path.split("/").reverse()[0].replace(".dust", "");
-    var filepath = output_path + filename + ".js";
-    var compiled = dust.compile(new String(data), filename);
+			fs.writeFile(filepath, compiled, function(err) {
+				if (err) {
+					growl('Error: ' + err, true);
+					throw err;
+				}
+				console.log('Saved ' + filepath);
+				growl('Saved ' + filepath);
+			});
+		} catch (err) {
+			growl('Error: ' + err, true);
+		}
+	});
+}
+
+function createMonitor() {
+	try {
+		watch.createMonitor(file_options.input_path, {
+			'ignoreDotFiles': true
+		}, function(monitor) {
+			console.log("Watching " + file_options.input_path);
+			monitor.files['*.dust', '*/*'];
+			monitor.on("created", compile_dust);
+			monitor.on("changed", compile_dust);
+		});
+	} catch (err) {
+		growl('Error: ' + err, true);
+		console.log(err);
+	}
+}
 
-    fs.writeFile(filepath, compiled, function(err) {
-      if (err) throw err;
-      console.log('Saved ' + filepath);
+function processCurrentFiles() {
+	fs.readdir(file_options.input_path, function(err, files) {
+        if(!err) {
+            files.forEach(function(filename) {
+            	var dustFile;
+            	if(!dustRegex.exec(filename)) {
+            		return;
+            	}
+            	dustFile = filename.replace('.dust', '') + '.js';
+                fs.stat(file_options.output_path + '/' + dustFile, function(err, props) {
+                    if(err) {
+                        console.log('file not found: ' + file_options.output_path + '/' + dustFile);
+                        compile_dust(file_options.input_path + '/' + filename);
+                    }
+                });
+            });
+        }
     });
-  });
 }
 
-watch.createMonitor(input_path, function (monitor) {
-  console.log("Watching " + input_path);
-  monitor.files['*.dust', '*/*'];
-  monitor.on("created", compile_dust);
-  monitor.on("changed", compile_dust);
-})
+function main() {
+	fs.exists(user_settings_file, function(exists) {
+		if (exists) {
+			fs.readFile(user_settings_file, 'utf8', function(err, data) {
+				if (err) {
+					return;
+				}
+
+				try {
+					yaml.loadAll(data, function(doc) {
+						if (doc.input_path) {
+							file_options.input_path = doc.input_path;
+						}
+						if (doc.output_path) {
+							file_options.output_path = doc.output_path;
+						}
+
+						growl('Watching ' + file_options.input_path + ' for changes');
+						growl('Saving compiled templates to ' + file_options.output_path);
+
+						processCurrentFiles();
+						createMonitor();
+					});
+				} catch (err) {
+					growl('Error: ' + err, true);
+				}
+			});
+		} else {
+			growl('Watching ' + file_options.input_path + ' for changes');
+			growl('Saving compiled templates to ' + file_options.output_path);
+
+			processCurrentFiles();
+			createMonitor();
+		}
+	});
+}
+
+main();

package.json

@@ -0,0 +1,13 @@
+{
+   "name": "dusterjs",
+   "description": "Duster.js - Node script to watch & precompile directory of dustjs templates",
+   "version": "0.0.1",
+   "main": "duster.js",
+   "dependencies": {
+       "dustjs-linkedin": ">= 1.1.0",
+       "watch": ">= 0.5.1",
+       "watch-tree": ">= 0.1.1",
+       "js-yaml": ">= 1.0.2",
+       "colors": ">= 0.6.0-1"
+   }
+}