diff -r fcad94e969a5 committing.rst
--- a/committing.rst	Mon Apr 13 18:23:37 2015 -0400
+++ b/committing.rst	Tue Apr 14 10:57:52 2015 -0400
@@ -304,10 +304,25 @@
 will reject all changesets having the wrong line endings, so enabling this
 extension on your local computer is in your best interest.
 
+As a core developer, it can be very helpful to set up the same commit checks
+locally that the main repo enforces for incoming patch sets. This can save a
+great deal of frustration with the server rejecting ``hg push`` for changes
+(which can be especially time consuming if you have already merged changes
+across branches).
+
+Configuring and using the whitespace checking hook found in the `hooks
+repository`_ will help check incoming patch sets. To configure the whitespace
+checking hook add this to ``~/.hgrc`` for the relevant repo(s) (remember to
+adjust the path appropriately for the checked out location of the
+`hooks repository`_)::
+
+   [hooks]
+   commit = python:~/devel/hg_hooks/checkwhitespace.py:check_whitespace_single
 
 .. _configuration file: http://www.selenic.com/mercurial/hgrc.5.html#files
 .. _extended diff format: http://www.selenic.com/mercurial/hg.1.html#diffs
 .. _eol extension: http://mercurial.selenic.com/wiki/EolExtension
+.. _hooks repository: https://hg.python.org/hooks
 
 
 Clones Setup