jekyll: Rescue from unavailable git

1 files changed, 6 insertions, 1 deletions

diff --git a/_plugins/gitrev.rb b/_plugins/gitrev.rb
index 7f72bb9..2396f8e 100644
--- a/_plugins/gitrev.rb
+++ b/_plugins/gitrev.rb
@@ -5,7 +5,12 @@ module Jekyll
     end
 
     def render(context)
-      `git rev-parse HEAD`.strip
+      begin
+        version = `git rev-parse HEAD 2>/dev/null`.strip
+        version.empty? ? "Unknown" : version
+      rescue Errno::ENOENT
+        "Unknown"
+      end
     end
   end
 end