From 09f3f51c77d8916ed5a9b6fe7fc510de45b0b4aa Mon Sep 17 00:00:00 2001
From: Henrik Levkowetz <henrik@levkowetz.com>
Date: Fri, 24 Apr 2015 20:38:36 +0000
Subject: [PATCH] Added support for an 'origin' template tag which will insert
 the name of the template file (within a html comment) into the page content
 when TEMPLATE_DEBUG is True; with the purpose of more easily being able to
 identify the templates from which page content comes.  - Legacy-Id: 9550

---
 ietf/utils/templatetags/__init__.py |  0
 ietf/utils/templatetags/origin.py   | 27 +++++++++++++++++++++++++++
 2 files changed, 27 insertions(+)
 create mode 100644 ietf/utils/templatetags/__init__.py
 create mode 100644 ietf/utils/templatetags/origin.py

diff --git a/ietf/utils/templatetags/__init__.py b/ietf/utils/templatetags/__init__.py
new file mode 100644
index 000000000..e69de29bb
diff --git a/ietf/utils/templatetags/origin.py b/ietf/utils/templatetags/origin.py
new file mode 100644
index 000000000..3ac3028d9
--- /dev/null
+++ b/ietf/utils/templatetags/origin.py
@@ -0,0 +1,27 @@
+from django import template
+import debug                            # pyflakes:ignore
+
+register = template.Library()
+
+
+class OriginNode(template.Node):
+    def __init__(self, origin=None):
+        # template file path if the template comes from a file:
+        self.origin = origin
+
+    def render(self, context):
+        if self.origin:
+            return "<!-- template: %s -->" % self.origin
+        else:
+            return ""
+
+@register.tag
+def origin(parser, token):
+    """
+    Returns a node which renders the 
+    """
+    if hasattr(token, "source"):
+        origin, source = token.source
+        return OriginNode(origin=origin)
+    else:
+        return OriginNode()