jekyll build
cd _site
-rsync ./ ralfj.de:srv/www.ralfj.de/docroot/ -aP \
- --exclude=cs/research.html
-scp cs/research.html mpi-contact:public_html/index.html
+
+git add .
+if ! git diff --cached; then
+ # There are changes
+ git commit -m "site upload"
+fi
+
+rsync ./ www.ralfj.de:/srv/www.ralfj.de/docroot/ -aP --exclude .git