From 2043556dc53c40279c3c8355cb97f06fd10d2d99 Mon Sep 17 00:00:00 2001
From: Oliver Davies <oliver@oliverdavies.uk>
Date: Mon, 24 Jul 2017 20:06:06 +0100
Subject: [PATCH] Exit if no changes

---
 publish.sh | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/publish.sh b/publish.sh
index b42632691..9abccf3b6 100755
--- a/publish.sh
+++ b/publish.sh
@@ -18,6 +18,13 @@ vendor/bin/sculpin generate --no-interaction --clean --env=${SITE_ENV}
 touch output_${SITE_ENV}/.nojekyll
 mv output_${SITE_ENV} docs
 
+git config --local user.email "oliver@oliver@oliverdavies.uk"
+
+if [ -z `git diff --exit-code` ]; then
+    echo "No changes on this push. Exiting."
+    exit 0
+fi
+
 # Add, commit and push the changes.
 git checkout $TARGET_BRANCH
 git add --all docs