# HG changeset patch
# User Marcin Kuzminski <marcin@rhodecode.com>
# Date 2017-01-25 11:45:05
# Node ID 71f19ea6da4a7a7777d03c68988916a9d80ffc54
# Parent  c9cd8e9d0ffbce800554fe720e7125443a402168

vcs: added possibility to pre-load attributes for FileNodes.

diff --git a/rhodecode/lib/vcs/backends/git/commit.py b/rhodecode/lib/vcs/backends/git/commit.py
--- a/rhodecode/lib/vcs/backends/git/commit.py
+++ b/rhodecode/lib/vcs/backends/git/commit.py
@@ -393,7 +393,7 @@ class GitCommit(base.BaseCommit):
         nodes.sort()
         return nodes
 
-    def get_node(self, path):
+    def get_node(self, path, pre_load=None):
         if isinstance(path, unicode):
             path = path.encode('utf-8')
         path = self._fix_path(path)
@@ -415,7 +415,7 @@ class GitCommit(base.BaseCommit):
                 else:
                     node = DirNode(path, commit=self)
             elif type_ == 'blob':
-                node = FileNode(path, commit=self)
+                node = FileNode(path, commit=self, pre_load=pre_load)
             else:
                 raise self.no_node_at_path(path)
 
diff --git a/rhodecode/lib/vcs/backends/hg/commit.py b/rhodecode/lib/vcs/backends/hg/commit.py
--- a/rhodecode/lib/vcs/backends/hg/commit.py
+++ b/rhodecode/lib/vcs/backends/hg/commit.py
@@ -289,7 +289,7 @@ class MercurialCommit(base.BaseCommit):
 
         return nodes
 
-    def get_node(self, path):
+    def get_node(self, path, pre_load=None):
         """
         Returns `Node` object from the given `path`. If there is no node at
         the given `path`, `NodeDoesNotExistError` would be raised.
@@ -298,7 +298,7 @@ class MercurialCommit(base.BaseCommit):
 
         if path not in self.nodes:
             if path in self._file_paths:
-                node = FileNode(path, commit=self)
+                node = FileNode(path, commit=self, pre_load=pre_load)
             elif path in self._dir_paths:
                 if path == '':
                     node = RootNode(commit=self)
diff --git a/rhodecode/lib/vcs/backends/svn/commit.py b/rhodecode/lib/vcs/backends/svn/commit.py
--- a/rhodecode/lib/vcs/backends/svn/commit.py
+++ b/rhodecode/lib/vcs/backends/svn/commit.py
@@ -140,7 +140,7 @@ class SubversionCommit(base.BaseCommit):
                 lambda: self.repository.get_commit(commit_id=commit_id),
                 content)
 
-    def get_node(self, path):
+    def get_node(self, path, pre_load=None):
         path = self._fix_path(path)
         if path not in self.nodes:
 
@@ -152,7 +152,7 @@ class SubversionCommit(base.BaseCommit):
                 if node_type == 'dir':
                     node = nodes.DirNode(path, commit=self)
                 elif node_type == 'file':
-                    node = nodes.FileNode(path, commit=self)
+                    node = nodes.FileNode(path, commit=self, pre_load=pre_load)
                 else:
                     raise NodeDoesNotExistError(self.no_node_at_path(path))
 
diff --git a/rhodecode/lib/vcs/nodes.py b/rhodecode/lib/vcs/nodes.py
--- a/rhodecode/lib/vcs/nodes.py
+++ b/rhodecode/lib/vcs/nodes.py
@@ -290,8 +290,9 @@ class FileNode(Node):
     :attribute: commit: if given, first time content is accessed, callback
     :attribute: mode: stat mode for a node. Default is `FILEMODE_DEFAULT`.
     """
+    _filter_pre_load = []
 
-    def __init__(self, path, content=None, commit=None, mode=None):
+    def __init__(self, path, content=None, commit=None, mode=None, pre_load=None):
         """
         Only one of ``content`` and ``commit`` may be given. Passing both
         would raise ``NodeError`` exception.
@@ -308,6 +309,22 @@ class FileNode(Node):
         self._content = content
         self._mode = mode or FILEMODE_DEFAULT
 
+        self._set_bulk_properties(pre_load)
+
+    def _set_bulk_properties(self, pre_load):
+        if not pre_load:
+            return
+        pre_load = [entry for entry in pre_load
+                    if entry not in self._filter_pre_load]
+        if not pre_load:
+            return
+
+        for attr_name in pre_load:
+            result = getattr(self, attr_name)
+            if callable(result):
+                result = result()
+            self.__dict__[attr_name] = result
+
     @LazyProperty
     def mode(self):
         """