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diff --git a/extra/oxidized-report-git-commits b/extra/oxidized-report-git-commits
new file mode 100755
index 0000000..2b1a2d7
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+++ b/extra/oxidized-report-git-commits
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+#!/bin/sh
+# 
+# A script to maintain a local working copy of an oxidized configuration
+# repository and mail out diffs for configuration changes
+# 
+# Copyright 2016 Nick Hilliard <nick@foobar.org>, All Rights Reserved
+# 
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+# 
+#   http://www.apache.org/licenses/LICENSE-2.0
+# 
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# usage: add the following hook to the oxidized config file:
+# 
+# hooks:
+#  email_output:
+#    type: exec
+#    events: [post_store, node_fail]
+#    cmd: 'update-local-repo.sh ~/gitdir/ | mail -s "Oxidized updates for ${OX_NODE_NAME}" update-recipient@example.com'
+#    async: true
+#    timeout: 120
+# 
+#
+# The script takes a single argument, namely a git working directory name,
+# e.g.  "~/gitdir/".  This is only used as a staging directory and should
+# not be set to be the same as the git repo directory.
+#
+
+PATH=${PATH}:/usr/local/bin:/usr/local/sbin
+export PATH
+
+gitdir=$1
+
+if [ X${OX_REPO_COMMITREF} = "X" ]; then
+	echo \$OX_REPO_COMMITREF not set
+	exit 64
+fi
+
+if [ X${OX_REPO_NAME} = "X" ]; then
+	echo \$OX_REPO_NAME not set
+	exit 64
+fi
+	
+if [ ! -d ${gitdir}/.git ]; then
+	git clone -q ${OX_REPO_NAME} ${gitdir}
+
+	ret=$?
+	if [ X"${ret}" != X0 ] && [ X"${ret}" != X1 ]; then
+		echo git clone failed: aborting.
+		exit 128
+	fi
+fi
+
+cd ${gitdir}
+
+git pull -q > /dev/null 2>&1 
+ret=$?
+if [ X"${ret}" != X0 ] && [ X"${ret}" != X1 ]; then
+	echo git pull failed: aborting.
+	exit 128
+fi
+
+# Git is probably working at this stage, so safe to emit more info
+
+echo "Node name: ${OX_NODE_NAME}"
+echo "Group Name: ${OX_NODE_GROUP}"
+echo "Job Time: ${OX_JOB_TIME}"
+echo "Git Commit ID: ${OX_REPO_COMMITREF}"
+echo "Git Repo: ${OX_REPO_NAME}"
+echo "Local working dir: ${gitdir}"
+echo ""
+
+git diff --no-color ${OX_REPO_COMMITREF}~1..${OX_REPO_COMMITREF}