Added: --watch all .js in the CWD. Closes #139

Makefile

@@ -76,7 +76,7 @@ non-tty:
 	@cat /tmp/spec.out
 
 watch:
-	watch --interval=1 $(MAKE) mocha.{js,css}
+	@watch -q $(MAKE) mocha.{js,css}
 
 tm:
 	mkdir -p $(TM_DEST)/$(TM_BUNDLE)

bin/_mocha

@@ -8,6 +8,7 @@ var program = require('commander')
   , exec = require('child_process').exec
   , path = require('path')
   , mocha = require('../')
+  , utils = mocha.utils
   , reporters = mocha.reporters
   , interfaces = mocha.interfaces
   , Runner = mocha.Runner
@@ -195,7 +196,7 @@ if (program.watch) {
 
   play(frames);
 
-  mocha.watch(files, function(){
+  utils.watch(utils.files(cwd), function(){
     stop()
     suite = suite.clone();
     ui = interfaces[program.ui](suite);

lib/mocha.js

@@ -19,4 +19,3 @@ exports.Runner = require('./runner');
 exports.Suite = require('./suite');
 exports.Hook = require('./hook');
 exports.Test = require('./test');
-exports.watch = require('./watch');

lib/utils.js

@@ -1,4 +1,19 @@
 
+/**
+ * Module dependencies.
+ */
+
+var fs = require('fs')
+  , path = require('path')
+  , join = path.join
+  , debug = require('debug')('watch');
+
+/**
+ * Ignored directories.
+ */
+
+var ignore = ['node_modules', '.git'];
+
 /**
  * Escape special characters in the given string of html.
  *
@@ -107,3 +122,54 @@ exports.keys = Object.keys || function(obj) {
 
   return keys;
 };
+
+/**
+ * Watch the given `files` for changes
+ * and invoke `fn(file)` on modification.
+ *
+ * @param {Array} files
+ * @param {Function} fn
+ * @api private
+ */
+
+exports.watch = function(files, fn){
+  var options = { interval: 100 };
+  files.forEach(function(file){
+    debug('file %s', file);
+    fs.watchFile(file, options, function(curr, prev){
+      if (prev.mtime < curr.mtime) fn(file);
+    });
+  });
+};
+
+/**
+ * Ignored files.
+ */
+
+function ignored(path){
+  return !~ignore.indexOf(path);
+}
+
+/**
+ * Lookup files in the given `dir`.
+ *
+ * @return {Array}
+ * @api public
+ */
+
+exports.files = function(dir, ret){
+  ret = ret || [];
+
+  fs.readdirSync(dir)
+  .filter(ignored)
+  .forEach(function(path){
+    path = join(dir, path);
+    if (fs.statSync(path).isDirectory()) {
+      exports.files(path, ret);
+    } else if (path.match(/\.js$/)) {
+      ret.push(path);
+    }
+  });
+
+  return ret;
+};