[tools] Added basic lines of code tool

Author: Marak

lib/tools/loc.coffee

@@ -0,0 +1,27 @@
+# Lines of Code tool
+
+util = require '../utils'
+eyes = require 'eyes'
+fs   = require 'fs'
+
+exports.exec = (options, callback) ->
+  line_count = 0
+  file_count = 0
+  
+  # Cheating a bit for the async iteration here
+  for glob in options._[1...]
+    files = util.paths glob
+    file_count += files.length
+
+  for glob in options._[1...]
+    files = util.paths glob
+
+    files.forEach (v,i) ->
+      fs.readFile v, (err, data) ->
+        file_count = file_count - 1
+        if err 
+          # throw err
+          return
+        line_count += data.toString().split('\n').length
+        if file_count == 0
+          callback(null, line_count);