# HG changeset patch
# User Ludovic Chabant <ludovic@chabant.com>
# Date 1437983275 25200
# Node ID 73bd408caebc6b9a95f56507fd55a211af283253
# Parent  16e705c58cae860b7d000cd2422cb191c8037bdd
internal: Return `None` instead of raising an exception when finding pages.

This makes the `posts` source behave like the other ones.

diff -r 16e705c58cae -r 73bd408caebc piecrust/sources/posts.py
--- a/piecrust/sources/posts.py	Sun Jul 26 23:16:15 2015 -0700
+++ b/piecrust/sources/posts.py	Mon Jul 27 00:47:55 2015 -0700
@@ -9,7 +9,6 @@
         MODE_CREATING, MODE_PARSING)
 from piecrust.sources.interfaces import IPreparingSource
 from piecrust.sources.mixins import SimplePaginationSourceMixin
-from piecrust.sources.pageref import PageNotFoundError
 
 
 logger = logging.getLogger(__name__)
@@ -88,10 +87,10 @@
                 raise ValueError("Not enough information to find a post path.")
             possible_paths = glob.glob(path)
             if len(possible_paths) != 1:
-                raise PageNotFoundError()
+                return None
             path = possible_paths[0]
         elif mode == MODE_PARSING and not os.path.isfile(path):
-            raise PageNotFoundError(path)
+            return None
 
         rel_path = os.path.relpath(path, self.fs_endpoint_path)
         rel_path = rel_path.replace('\\', '/')