include the git version in each file of the built site

.gitignore

@@ -1 +1,2 @@
 _site/
+_data/version.yml

_includes/head.html

@@ -9,4 +9,8 @@
     <!-- Custom CSS -->
     <link rel="stylesheet" href="{{ "/css/main.css" | prepend: site.baseurl }}">
 
+    {% if site.data.version %}
+    <!-- site built from {{ site.data.version }} -->
+    {% endif %}
+
 </head>

scripts/pull-build-rsync

@@ -20,6 +20,7 @@ git checkout master
 git reset --hard origin/master
 
 
+./scripts/update-version
 jekyll build --trace || exit 1
 
 

scripts/update-version

@@ -0,0 +1,4 @@
+#!/bin/bash
+
+git describe --dirty >| _data/version.yml
+