Megatest

			   (mode 'full)
			   (no-update '("keys")) ;; do
			   )
  (debug:print 0 *default-log-port* "Doing sync "direction" "destdbfile)
  (if (not (sqlite3:auto-committing? dbh))
      (debug:print 0 *default-log-port* "Skipping sync due to transaction in flight.")
      (let* ((table-names  (map car tables))
	     (dest-exists  (file-exists? destdbfile))
	     (start-time   (current-milliseconds)))
	(assert dest-exists "FATAL: sync called with non-existant file, "destdbfile)
	;; attach the destdbfile
	;; for each table
	;;    insert into dest.<table> select * from src.<table> where last_update>last_update
	;; done
	(debug:print 0 *default-log-port* "Attaching "destdbfile" as auxdb")
	(sqlite3:execute dbh (conc "ATTACH '"destdbfile"' AS auxdb;"))

	     ;; (debug:print 0 *default-log-port* "stmt8="stmt8)
	     ;; (if (sqlite3:auto-committing? dbh)
	     ;; (begin
	     (mutex-lock! *db-transaction-mutex*)
	     (sqlite3:with-transaction
	      dbh
	      (lambda ()
		(debug:print-info 0 *default-log-port* "Sync from "fromdb table" to "todb table" using INSERT OR UPDATE")
		(sqlite3:execute dbh stmt1)    ;; get all new rows
		
		(if (member "last_update" fields)
		    (sqlite3:execute dbh stmt8))    ;; get all updated rows
		;; (sqlite3:execute dbh stmt5)
		;; (sqlite3:execute dbh stmt4) ;; if it worked this would be better for incremental up
		;; (sqlite3:execute dbh stmt6)
		))
	     (debug:print 0 *default-log-port* "Synced table "table
			  " in "(- (current-milliseconds) start-ms)"ms") ;; )
	     (mutex-unlock! *db-transaction-mutex*)))
	     
	 ;; (debug:print 0 *default-log-port* "Skipping sync of table "table" due to transaction in flight."))))
	 table-names)
	(sqlite3:execute dbh "DETACH auxdb;")
	(debug:print-info 0 *default-log-port* "Total sync time: "(- (current-milliseconds) start-time)"ms")
	-1)))

;; FAILED ATTEMPTS

	     ;; (if (not (has-last-update dbh table))
	     ;;     (sqlite3:execute dbh (conc "ALTER TABLE "table" ADD COLUMN last_update INTEGER;")))
	     ;; (if (not (has-last-update dbh (conc "auxdb."table)))
	     ;;     (sqlite3:execute dbh (conc "ALTER TABLE auxdb."table" ADD COLUMN last_update INTEGER;")))

;;======================================================================

(define (dbmod:db-to-db-sync src-db dest-db last-update init-proc keys)
  (if (and (file-exists? src-db)
	   (file-read-access? src-db))
      (let* ((d-wr   (or (and (file-exists? dest-db)
			      (file-write-access? dest-db)) ;; exists and writable
			 (let* ((dirname (or (pathname-directory dest-db)
					     ".")))
			   (if dirname
			       (file-exists? dirname)
			       (file-write-access? dirname)))))
	     (tables (db:sync-all-tables-list keys))
	     (sdb    (dbmod:safely-open-db src-db init-proc #t))
	     (ddb    (dbmod:safely-open-db dest-db init-proc d-wr)))
	(dbmod:sync-gasket tables last-update sdb ddb dest-db 'todest))))

)

	;; if have -append-config then read and append here
	(let ((cfname (args:get-arg "-append-config")))
	  (if (and cfname
		   (file-read-access? cfname))
	      (read-config cfname *configdat* #t))) ;; values are added to the hash, no need to do anything special.
	;; have config at this time, this is a good place to set params based on config file settings
	(let*  ((dbmode   (configf:lookup *configdat* "setup" "dbcache-mode"))
		(syncmode (configf:lookup *configdat* "setup" "sync-mode")))
	  (if dbmode
	      (begin
		(debug:print-info 0 *default-log-port* "Overriding dbmode to "dbmode)
		(dbcache-mode (string->symbol dbmode))))
	  (if syncmode
	      (begin
		(debug:print-info 0 *default-log-port* "Overriding syncmode to "syncmode)
		(dbfile:sync-method (string->symbol syncmode)))))
	*toppath*)))


(define (get-best-disk confdat testconfig)
  (let* ((disks   (or (and testconfig (hash-table-ref/default testconfig "disks" #f))
		      (hash-table-ref/default confdat "disks" #f)))
	 (minspace (let ((m (configf:lookup confdat "setup" "minspace")))

    (let ((toppath (launch:setup)))
      (tasks:sync-to-postgres *configdat* (args:get-arg "-sync-to"))
      (set! *didsomething* #t)))

;; use with -from and -to
;;
(if (args:get-arg "-db2db")
    (let* ((duh         (launch:setup))
	   (src-db      (args:get-arg "-from"))
	   (dest-db     (args:get-arg "-to"))
	   (sync-period (args:get-arg "-period"))    ;; NOT IMPLEMENTED YET
	   (sync-timeout (args:get-arg "-timeout"))  ;; NOT IMPLEMENTED YET
	   (lockfile    (conc dest-db".lock"))
	   ;; (locked   (common:simple-file-lock lockfile))
	   (keys        (db:get-keys #f))
	   (res      ;; (if locked
	    (dbmod:db-to-db-sync src-db dest-db 0 (dbfile:db-init-proc) keys)
	    ;;	 #f)))
	    ))
      
      (if (and src-db dest-db)
	  (begin
	    (debug:print-info 0 *default-log-port* "Attempting to sync data from "src-db" to "dest-db"...")
	    (if res
		(begin
		  (common:simple-file-release-lock lockfile)