Added color and logging support for nodes

* node/src/core/utility.py
  -- Added a platform check to colorize output
  -- Added a log and debug check
  -- We actually write output to a file now

node/src/core/utility.py

@@ -1,21 +1,36 @@
 from datetime import date, datetime
 from src.core.log import *
+import platform
+import config
 
 
 def msg(string, level=INFO):
+    """ Handle messages; this takes care of logging and
+    debug checking, as well as output colors
     """
-    """
 
-    if level is INFO:
-        print '\033[32m[%s] %s\033[0m' % (timestamp(), string)
-    elif level is DEBUG:
-        print '\033[34m[%s] %s\033[0m' % (timestamp(), string)
-    elif level is ERROR:
-        print '\033[31m[%s] %s\033[0m' % (timestamp(), string)
+    string = "[%s] %s" % (timestamp(), string)
+    if 'linux' in platform.platform().lower():
+        if level is INFO:
+            color_string = '%s%s%s' % ('\033[32m', string, '\033[0m')
+        elif level is DEBUG:
+            color_string = '%s%s%s' % ('\033[34m', string, '\033[0m')
+        elif level is ERROR:
+            color_string = '%s%s%s' % ('\033[31m', string, '\033[0m')
+        else:
+            color_string = string
+
+    if level is DEBUG and not config.DEBUG:
+        return
+
+    if not level is LOG:
+        print color_string
+
+    log(string)
 
 
 def timestamp():
-    """
+    """ Generate a timestamp 
     """
 
     return '%s %s' % (date.today().isoformat(),
@@ -26,4 +41,5 @@ def log(string):
     """ Log string to file
     """
 
-    pass 
+    with open(config.LOG_FILE, "a+") as f:
+        f.write("[%s] %s\n" % (timestamp(), string))