Process site only if not in watch mode (#700)

Author: rpeyron

lib/jekyll-admin/file_helper.rb

@@ -22,14 +22,14 @@ def write_file(path, content)
       File.open(path, "wb") do |file|
         file.write(content)
       end
-      site.process
+      conditionally_process_site
     end
 
     # Delete the file at the given path
     def delete_file(path)
       Jekyll.logger.debug "DELETING:", path
       FileUtils.rm_f sanitized_path(path)
-      site.process
+      conditionally_process_site
     end
 
     def delete_file_without_process(path)
@@ -39,6 +39,10 @@ def delete_file_without_process(path)
 
     private
 
+    def conditionally_process_site
+      site.process unless site.config['watch']  # to avoid race condition between jekyll watch and this
+    end
+
     def ensure_requested_file
       ensure_file(requested_file)
     end