Megatest

	(begin
	  (debug:print 0 "ERROR: the parameter to -set-state-status is a comma delimited string. E.g. COMPLETED,FAIL")
	  (exit)))
    (for-each
     (lambda (run)
       (let ((runkey (string-intersperse (map (lambda (k)
						(db:get-value-by-header run header k)) keys) "/"))
	     (dirs-to-remove (make-hash-table)))
	     (dirs-to-remove (make-hash-table))
	     (proc-get-tests (lambda (run-id)
			       (cdb:remote-run db:get-tests-for-run db run-id
					       testpatt states statuses
					       not-in:  #f
					       sort-by: (case action
							  ((remove-runs) 'rundir)
							  (else          'event_time))))))
	 (let* ((run-id    (db:get-value-by-header run header "id"))
		(run-state (db:get-value-by-header run header "state"))
		(tests     (if (not (equal? run-state "locked"))
			       (cdb:remote-run db:get-tests-for-run db run-id
			       (proc-get-tests run-id)
						      testpatt states statuses
						      not-in:  #f
						      sort-by: (case action
								 ((remove-runs) 'rundir)
								 (else          'event_time)))
			       '()))
		(lasttpath "/does/not/exist/I/hope"))
	   (debug:print-info 4 "runs:operate-on run=" run ", header=" header)
	   (if (not (null? tests))
	       (begin
		 (case action
		   ((remove-runs)
		    (debug:print 1 "Removing tests for run: " runkey " " (db:get-value-by-header run header "runname")))
		   ((set-state-status)
		    (debug:print 1 "Modifying state and staus for tests for run: " runkey " " (db:get-value-by-header run header "runname")))
		   ((print-run)
		    (debug:print 1 "Printing info for run " runkey ", run=" run ", tests=" tests ", header=" header)
		    action)
		   ((run-wait)
		    (debug:print 1 "Waiting for run " runkey ", run=" runnamepatt " to complete"))
		   (else
		    (debug:print-info 0 "action not recognised " action)))
		 (let ((sorted-tests     (sort tests (lambda (a b)(let ((dira (db:test-get-rundir a))
									(dirb (db:test-get-rundir b)))
								    (if (and (string? dira)(string? dirb))
									(> (string-length dira)(string-length dirb))
									#f)))))

						(debug:print 0 "WARNING: not removing " run-dir " as it either doesn't exist or is not a symlink")
						(debug:print 0 "NOTE: the run dir for this test is undefined. Test may have already been deleted."))
					    ))
				    (if (not (null? tal))
					(loop (car tal)(cdr tal))))))
			     ((set-state-status)
			      (debug:print-info 2 "new state " (car state-status) ", new status " (cadr state-status))
			      (cdb:remote-run db:test-set-state-status-by-id db (db:test-get-id test) (car state-status)(cadr state-status) #f)))))
			      (cdb:remote-run db:test-set-state-status-by-id db (db:test-get-id test) (car state-status)(cadr state-status) #f))
			     ((run-wait)
			      (debug:print-info 2 "still waiting, " (length tests) " tests still running")
			      (thread-sleep! 10)
			      (let ((new-tests (proc-get-tests run-id)))
				(if (null? new-tests)
				    (debug:print-info 1 "Run completed according to zero tests matching provided criteria.")
				    (loop (car new-tests)(cdr new-tests))))))))
		   )))
	   ;; remove the run if zero tests remain
	   (if (eq? action 'remove-runs)
	       (let ((remtests (cdb:remote-run db:get-tests-for-run db (db:get-value-by-header run header "id") #f '("DELETED") '("n/a") not-in: #t)))
		 (if (null? remtests) ;; no more tests remaining
		     (let* ((dparts  (string-split lasttpath "/"))
			    (runpath (conc "/" (string-intersperse