From 6f8d47b411ac9c8f92e2b95251805ab6b9ec9c01 Mon Sep 17 00:00:00 2001
From: llogiq <bogusandre@gmail.com>
Date: Fri, 14 Aug 2015 11:30:39 +0200
Subject: [PATCH] add a few words on dogfood + update_lints

---
 CONTRIBUTING.md | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 8bac03d9447..eebea413f0d 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -35,6 +35,11 @@ T-middle issues can be more involved and require verifying types. The
 lot of methods that are useful, though one of the most useful would be `expr_ty` (gives the type of
 an AST expression). `match_def_path()` in Clippy's `utils` module can also be useful.
 
+Should you add a lint, try it on clippy itself using `util/dogfood.sh`. You may find that clippy
+contains some questionable code itself! Also before making a pull request, please run
+`util/update_lints.py`, which will update `lib.rs` and `README.md` with the lint declarations. Our
+travis build actually checks for this.
+
 ## Contributions
 
 Clippy welcomes contributions from everyone.