From 4615011f2e930a0daea7eb49e4be43abbd46a9be Mon Sep 17 00:00:00 2001
From: Jakub Roztocil <jakub@roztocil.name>
Date: Fri, 3 Aug 2012 00:58:01 +0200
Subject: [PATCH] Sort headers by name when prettifying.

---
 httpie/output.py | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/httpie/output.py b/httpie/output.py
index fda8549a..8f564b13 100644
--- a/httpie/output.py
+++ b/httpie/output.py
@@ -224,10 +224,23 @@ class PygmentsProcessor(BaseProcessor):
         return content
 
 
+class HeadersProcessor(BaseProcessor):
+    """
+    Sorts headers by name retaining relative order of multiple headers
+    with the same name.
+
+    """
+    def process_headers(self, headers):
+        lines = headers.splitlines()
+        headers = sorted(lines[1:], key=lambda h: h.split(':')[0])
+        return '\n'.join(lines[:1] + headers)
+
+
 class OutputProcessor(object):
 
     installed_processors = [
         JSONProcessor,
+        HeadersProcessor,
         PygmentsProcessor
     ]