Integrate the CoffeeScript Compiler for .coffee files

Simple integration of CoffeeScript support. The code uses the JavaScript
implementation of the CoffeeScript compiler. All *.coffee files get
compiled to JavaScript just before eval(). Additionaly a new command
named /coffe is introduced to run CoffeeScript code straight in the
Minecraft console.

build.xml

@@ -38,6 +38,11 @@
 
     <echo>Creating default ops.txt for your user</echo>
     <echo message="${op.name}" file="${minecraft.dir}/ops.txt" />
+  	
+    <echo>Retrieving Coffeescript compiler</echo>
+  	<mkdir dir="${minecraft.dir}/js-plugins/core" />
+    <get src="https://raw.github.com/jashkenas/coffee-script/master/extras/coffee-script.js"
+         dest="${minecraft.dir}/js-plugins/core/_coffeescript.js"/>  	
   </target>
 
   <target name="run" depends="server-setup, package, update-live-cb" description="Starts Bukkit with ScriptCraft">

src/main/java/net/walterhiggins/scriptcraft/ScriptCraftPlugin.java

@@ -99,6 +99,11 @@ public class ScriptCraftPlugin extends JavaPlugin implements Listener
             this.engine.put("__script",boot.getCanonicalPath().replaceAll("\\\\","/"));
             reader = new FileReader(boot);
             this.engine.eval(reader);
+            
+            // Load the CoffeeScript compiler
+            File coffeescript = new File(JS_PLUGINS_DIR + "/core/_coffeescript.js");
+            this.engine.eval(new FileReader(coffeescript));
+            
         }catch(Exception e){
             e.printStackTrace();
         }finally {
@@ -147,7 +152,13 @@ public class ScriptCraftPlugin extends JavaPlugin implements Listener
             javascriptCode = "command()";
             this.engine.put("__cmdArgs",args);
             result = true;
+        } else if (cmd.getName().equalsIgnoreCase("coffee")) {
+        	for (int i = 0;i < args.length; i++)
+                javascriptCode += args[i] + " ";
+        	javascriptCode = "eval(CoffeeScript.compile(\""+javascriptCode+"\", {bare: true}))";
+        	result = true;
         }
+        
         if (result){
             this.engine.put("self",sender);
             try{

src/main/javascript/core/_scriptcraft.js

@@ -276,10 +276,22 @@ var server = org.bukkit.Bukkit.server;
             if (file.exists()) {
                 var parent = file.getParentFile();
                 var reader = new java.io.FileReader(file);
+                var br = new java.io.BufferedReader(reader);
                 __engine.put("__script",canonizedFilename);
                 __engine.put("__folder",(parent?_canonize(parent):"")+"/");
+
+                var code = "";
                 try{
-                    result = __engine.eval(reader);
+                    if (file.getCanonicalPath().endsWith(".coffee")) {
+                        var r = undefined;
+                        while ((r = br.readLine()) !== null) code += "\"" + r + "\" +\n";
+                        code += "\"\"";
+                        var code = "load(__folder + \"../core/_coffeescript.js\"); var ___code = "+code+"; eval(CoffeeScript.compile(___code, {bare: true}))";
+                    } else {
+                        while ((r = br.readLine()) !== null) code += r + "\n";
+                    }
+
+                    result = __engine.eval(code);
                     _loaded[canonizedFilename] = true;
                     reader.close();
                 }catch (e){
@@ -296,7 +308,7 @@ var server = org.bukkit.Bukkit.server;
     /*
       recursively walk the given directory and return a list of all .js files 
      */
-    var _listJsFiles = function(store,dir)
+    var _listSourceFiles = function(store,dir)
     {
         if (typeof dir == "undefined"){
             dir = new java.io.File(_originalScript).getParentFile().getParentFile();
@@ -305,9 +317,9 @@ var server = org.bukkit.Bukkit.server;
         for (var i = 0;i < files.length; i++){
             var file = files[i];
             if (file.isDirectory()){
-                _listJsFiles(store,file);
+                _listSourceFiles(store,file);
             }else{
-                if (file.getCanonicalPath().endsWith(".js") &&
+                if ((file.getCanonicalPath().endsWith(".js") || file.getCanonicalPath().endsWith(".coffee")) &&
                    !(file.getName().startsWith("_")) &&
                     file.exists())
                 {
@@ -348,10 +360,10 @@ var server = org.bukkit.Bukkit.server;
     var _reload = function(pluginDir)
     {
         _loaded = [];
-        var jsFiles = [];
+        var sourceFiles = [];
-        _listJsFiles(jsFiles,pluginDir);
+        _listSourceFiles(sourceFiles,pluginDir);
 
-        jsFiles.sort(sortByModule);
+        sourceFiles.sort(sortByModule);
 
         //
         // script files whose name begins with _ (underscore)
@@ -363,9 +375,9 @@ var server = org.bukkit.Bukkit.server;
         // then it's assumed that _myMiniGame_currency.js and _myMiniGame_events.js will be loaded
         // as dependencies by myMiniGame.js and do not need to be loaded via js reload
         //
-        var len = jsFiles.length;
+        var len = sourceFiles.length;
         for (var i = 0;i < len; i++){
-            load(_canonize(jsFiles[i]),true);
+            load(_canonize(sourceFiles[i]),true);
         }
     };
 

src/main/resources/plugin.yml

@@ -12,6 +12,11 @@ commands:
       usage: /<command> command-name command-parameters
       permission: scriptcraft.proxy
       permission-message: You don't have <permission> permission.
+   coffee:
+      description: Evaluate coffeescript.
+      usage: /<command> Coffeescript code
+      permission: scriptcraft.evaluate
+      permission-message: You don't have <permission> permission.
 
 permissions:
    scriptcraft.*: