lib/deputy.rb in deputy-0.1.34 vs lib/deputy.rb in deputy-0.1.35

@@ -85,13 +85,15 @@
   START_MINUTE = (Time.now.to_i + 30) / 60 # we could start at 58..02 seconds -> always in middle of minute
   VERSION = File.read( File.join(File.dirname(__FILE__),'..','VERSION') ).strip
 
   def self.install_cron
     executable = `which deputy`.strip
-    `crontab -l | { cat; echo "* * * * * #{executable} --run-plugins >> /tmp/deputy.log 2>&1"; } | crontab -`
-    if executable !~ %r{^/usr/}
-      puts "make deputy globally available! or e.g. calls from inside cronjobs do not know deputy"
-      puts "sudo ln -s #{executable} /usr/bin/deputy"
+    unless (`crontab -l`).include?(executable) 
+      `crontab -l | { cat; echo "* * * * * #{executable} --run-plugins >> /tmp/deputy.log 2>&1"; } | crontab -`
+      if executable !~ %r{^/usr/}
+        puts "make deputy globally available! or e.g. calls from inside cronjobs do not know deputy"
+        puts "sudo ln -s #{executable} /usr/bin/deputy"
+      end
     end
   end
 
   def self.run_plugins
     content = get("/plugins.rb")
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