big refactor 1

utils.py

@@ -1,5 +1,34 @@
-def pjoin (rt,pth):
-     return u'{}/{}'.format(rt,pth)
+"""
+Utility Functions for handling files and paths
+"""
+import os
+import re
+from os.path import isfile, abspath
+
 
 def pjoin2 (pth):
+     if (not type(pth) is list):
+          raise AttributeError("path should be a list") 
+     pth=filter(lambda s: len(s.strip())>0, pth)
+     if len(pth)==0:
+          raise AttributeError("List for pjoin2 can't be empty")
      return u'/'.join(pth) or u''
+
+def pjoin (rt,pth):
+    return pjoin2([rt,pth])
+
+def list_dir(mypath,ext=None, not_ext=None):
+    return (f for f in os.listdir(mypath)
+            if os.path.isfile(os.path.join(mypath, f))
+            and ((re.match('.*%s$' % not_ext, f) is None) or (not_ext is None))
+            and ((re.match('.*%s$' % ext, f) is not None) or (ext is None))
+    )
+
+def path_depth(path):
+    if path =="":
+        return 0
+    p_split=path.split('/')
+    cc=len(p_split)
+    if p_split[-1]=='index' or p_split[-1]=='index.json' :
+        cc=cc-1
+    return cc