From 0bc71103e16a774b53383365d461c7705e313a5b Mon Sep 17 00:00:00 2001
From: Mark Haines <mark.haines@matrix.org>
Date: Tue, 28 Apr 2015 10:17:10 +0100
Subject: [PATCH] Output vim style mode markers into the yaml config file

---
 synapse/config/_base.py | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/synapse/config/_base.py b/synapse/config/_base.py
index 87cdbf1d30..6017cb6334 100644
--- a/synapse/config/_base.py
+++ b/synapse/config/_base.py
@@ -147,9 +147,10 @@ class Config(object):
                         and value is not None):
                     config[key] = value
             with open(config_args.config_path, "w") as config_file:
-                # TODO(paul) it would be lovely if we wrote out vim- and emacs-
-                #   style mode markers into the file, to hint to people that
-                #   this is a YAML file.
+                # TODO(mark/paul) We might want to output emacs-style mode
+                # markers as well as vim-style mode markers into the file,
+                # to further hint to people this is a YAML file.
+                config_file.write("# vim:ft=yaml\n")
                 yaml.dump(config, config_file, default_flow_style=False)
             print (
                 "A config file has been generated in %s for server name"
-- 
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