Wait for input dir to be created before starting the workflow. Closes #6

main.nf

@@ -176,7 +176,11 @@ workflow {
         minknowdir = params.minknowdir        
     } else {
         minknowdir = params.minknowdir + File.separator
+    }
 
+    while (! file(minknowdir).exists()){
+        println "MinKnow output dir '${minknowdir}' does not exist yet. Checking again in 10 seconds. (Press Ctrl+C three times to cancel)"
+        sleep(10000)
     }
 
     println "Starting workflow with following parameters:"