Megatest

                            and :runname ,-testpatt and -itempatt
                            and -testpatt
  -rerun FAIL,WARN...     : re-run if called on a test that previously ran (nullified
                            if -keepgoing is also specified)
  -rebuild-db             : bring the database schema up to date
  -rollup                 : fill run (set by :runname)  with latest test(s) from
                            prior runs with same keys
  -lock                   : lock the run specified by target and runname as locked
                            which prevents -remove-runs from removing the run
  -update-meta            : update the tests metadata for all tests
  -env2file fname         : write the environment to fname.csh and fname.sh
  -setvars VAR1=val1,VAR2=val2 : Add environment variables to a run NB// these are
                                 overwritten by values set in config files.
  -archive                : archive tests, use -target, :runname, -itempatt and -testpatt
  -server -|hostname      : start the server (reduces contention on megatest.db), use
                            - to automatically figure out hostname

			"-set-values"
			"-load-test-data"
			"-summarize-items"
		        "-gui"
			;; misc
			"-archive"
			"-repl"
			"-lock"
			;; queries
			"-test-paths" ;; get path(s) to a test, ordered by youngest first

			"-runall"    ;; run all tests
			"-remove-runs"
			"-keepgoing"
			"-usequeue"

    (debug:print 1 "Header: " header)
    (for-each
     (lambda (run)
       (let ((runkey (string-intersperse (map (lambda (k)
						(db:get-value-by-header run header (vector-ref k 0))) keys) "/"))
	     (dirs-to-remove (make-hash-table)))
	 (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"))
		(tests  (rdb:get-tests-for-run db (db:get-value-by-header run header "id") testpatt itempatt '() '()))
			       (rdb:get-tests-for-run db (db:get-value-by-header run header "id") testpatt itempatt '() '())
			       '()))
		(lasttpath "/does/not/exist/I/hope"))

	   (if (not (equal? run-state "locked"))
	       (begin
	   (if (not (null? tests))
	       (begin
		 (debug:print 1 "Removing tests for run: " runkey " " (db:get-value-by-header run header "runname"))
		 (for-each
		  (lambda (test)
		    (let* ((item-path (db:test-get-item-path test))
			   (test-name (db:test-get-testname test))

		   (db:delete-run db run-id)
		   ;; need to figure out the path to the run dir and remove it if empty
		   ;;    (if (null? (glob (conc runpath "/*")))
		   ;;        (begin
		   ;; 	 (debug:print 1 "Removing run dir " runpath)
		   ;; 	 (system (conc "rmdir -p " runpath))))
		   ))))
	 ))
	       ))))
     runs)))

;;======================================================================
;; Routines for manipulating runs
;;======================================================================

;; Since many calls to a run require pretty much the same setup