fix app packaging

gluon/fileutils.py

@@ -139,11 +139,14 @@ def listdir(path,
             add_dirs=False,
             sort=True,
             maxnum=None,
+            exclude_content_from=None
             ):
     """
     Like `os.listdir()` but you can specify a regex pattern to filter files.
     If `add_dirs` is True, the returned items will have the full path.
     """
+    if exclude_content_from is None:
+        exclude_content_from = []
     if path[-1:] != os.path.sep:
         path = path + os.path.sep
     if drop:
@@ -160,8 +163,9 @@ def listdir(path,
             items.append(root[n:])
         for file in sorted(files):
             if regex.match(file) and not file.startswith('.'):
-                items.append(os.path.join(root, file)[n:])
-            if maxnum and len(items)>=maxnum:
+                if root not in exclude_content_from:
+                    items.append(os.path.join(root, file)[n:])
+            if maxnum and len(items) >= maxnum:
                 break
     if sort:
         return sorted(items)
@@ -201,14 +205,16 @@ def _extractall(filename, path='.', members=None):
     return ret
 
 
-def tar(file, dir, expression='^.+$', filenames=None):
+def tar(file, dir, expression='^.+$',
+        filenames=None, exclude_content_from=None):
     """Tars dir into file, only tars file that match expression
     """
 
     tar = tarfile.TarFile(file, 'w')
     try:
         if filenames is None:
-            filenames = listdir(dir, expression, add_dirs=True)
+            filenames = listdir(dir, expression, add_dirs=True,
+                exclude_content_from=exclude_content_from)
         for file in filenames:
             tar.add(os.path.join(dir, file), file, False)
     finally:
@@ -235,9 +241,11 @@ def w2p_pack(filename, path, compiled=False, filenames=None):
     path = abspath(path)
     tarname = filename + '.tar'
     if compiled:
-        tar_compiled(tarname, path, '^[\w\.\-]+$')
+        tar_compiled(tarname, path, '^[\w\.\-]+$',
+                     exclude_content_from=['cache', 'sessions', 'errors'])
     else:
-        tar(tarname, path, '^[\w\.\-]+$', filenames=filenames)
+        tar(tarname, path, '^[\w\.\-]+$', filenames=filenames,
+            exclude_content_from=['cache', 'sessions', 'errors'])
     w2pfp = gzopen(filename, 'wb')
     tarfp = open(tarname, 'rb')
     w2pfp.write(tarfp.read())
@@ -314,13 +322,15 @@ def w2p_unpack_plugin(filename, path, delete_tar=True):
     w2p_unpack(filename, path, delete_tar)
 
 
-def tar_compiled(file, dir, expression='^.+$'):
+def tar_compiled(file, dir, expression='^.+$',
+                 exclude_content_from=None):
     """Used to tar a compiled application.
     The content of models, views, controllers is not stored in the tar file.
     """
 
     tar = tarfile.TarFile(file, 'w')
-    for file in listdir(dir, expression, add_dirs=True):
+    for file in listdir(dir, expression, add_dirs=True,
+                        exclude_content_from=exclude_content_from):
         filename = os.path.join(dir, file)
         if os.path.islink(filename):
             continue