Megatest

;;======================================================================
;; Copyright 2006-2012, Matthew Welland.
;; 
;;  This program is made available under the GNU GPL version 2.0 or
;;  greater. See the accompanying file COPYING for details.
;; 
;;  This program is distributed WITHOUT ANY WARRANTY; without even the
;;  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
;;  PURPOSE.
;;======================================================================

(use sqlite3 srfi-1 posix regex-case base64 format dot-locking csv-xml z3)
(require-extension sqlite3 regex posix)

(require-extension (srfi 18) extras tcp rpc)

(import (prefix sqlite3 sqlite3:))
(import (prefix base64 base64:))

(declare (unit common))

(include "common_records.scm")

;; (require-library margs)
;; (include "margs.scm")

(define getenv get-environment-variable)
(define (safe-setenv key val)
  (if (and (string? val)(string? key))
      (handle-exceptions
       exn
       (debug:print 0 "ERROR: bad value for setenv, key=" key ", value=" val)
       (setenv key val))
      (debug:print 0 "ERROR: bad value for setenv, key=" key ", value=" val)))

(define home (getenv "HOME"))
(define user (getenv "USER"))

;; GLOBAL GLETCHES
(define *db-keys* #f)
(define *configinfo* #f)
(define *configdat*  #f)
(define *toppath*    #f)
(define *already-seen-runconfig-info* #f)
(define *waiting-queue*     (make-hash-table))
(define *test-meta-updated* (make-hash-table))
(define *globalexitstatus*  0) ;; attempt to work around possible thread issues
(define *passnum*           0) ;; when running track calls to run-tests or similar
(define *write-frequency*   (make-hash-table)) ;; run-id => (vector (current-seconds) 0))
(define *alt-log-file* #f)  ;; used by -log
(define *common:denoise*    (make-hash-table)) ;; for low noise printing

;; DATABASE
(define *dbstruct-db*  #f)
(define *db-stats*            (make-hash-table)) ;; hash of vectors < count duration-total >
(define *db-stats-mutex*      (make-mutex))
(define *db-sync-mutex*       (make-mutex))
(define *db-multi-sync-mutex* (make-mutex))
(define *db-local-sync*       (make-hash-table)) ;; used to record last touch of db
(define *megatest-db*         #f)
(define *last-db-access*      (current-seconds))  ;; update when db is accessed via server
(define *db-write-access*     #t)
(define *inmemdb*             #f)
(define *task-db*             #f) ;; (vector db path-to-db)
(define *db-access-allowed*   #t) ;; flag to allow access
(define *db-access-mutex*     (make-mutex))

;; SERVER
(define *my-client-signature* #f)
(define *transport-type*    'http)
(define *transport-type*    'http)             ;; override with [server] transport http|rpc|nmsg

(define *runremote*         (make-hash-table)) ;; if set up for server communication this will hold <host port>

(define *max-cache-size*    0)
(define *logged-in-clients* (make-hash-table))
(define *client-non-blocking-mode* #f)
(define *server-id*         #f)
(define *server-info*       #f)
(define *time-to-exit*      #f)
(define *received-response* #f)
(define *default-numtries*  10)
(define *server-run*        #t)
(define *run-id*            #f)
(define *server-kind-run*   (make-hash-table))

(define *target*            (make-hash-table)) ;; cache the target here; target is keyval1/keyval2/.../keyvalN
(define *keys*              (make-hash-table)) ;; cache the keys here
(define *keyvals*           (make-hash-table))
(define *toptest-paths*     (make-hash-table)) ;; cache toptest path settings here
(define *test-paths*        (make-hash-table)) ;; cache test-id to test run paths here
(define *test-ids*          (make-hash-table)) ;; cache run-id, testname, and item-path => test-id

  (set! *toptest-paths*      (make-hash-table))
  (set! *test-paths*         (make-hash-table))
  (set! *test-ids*           (make-hash-table))
  (set! *test-info*          (make-hash-table))
  (set! *run-info-cache*     (make-hash-table))
  (set! *env-vars-by-run-id* (make-hash-table))
  (set! *test-id-cache*      (make-hash-table)))

;; Generic string database
(define sdb:qry #f) ;; (make-sdb:qry)) ;;  'init #f)
;; Generic path database
(define *fdb* #f)

;;======================================================================
;; L O C K E R S   A N D   B L O C K E R S 
;;======================================================================

;; block further accesses to databases. Call this before shutting db down
(define (common:db-block-further-queries)
  (mutex-lock! *db-access-mutex*)
  (set! *db-access-allowed* #f)
  (mutex-unlock! *db-access-mutex*))

(define (common:db-access-allowed?)
  (let ((val (begin
	       (mutex-lock! *db-access-mutex*)
	       *db-access-allowed*
	       (mutex-unlock! *db-access-mutex*))))
    val))

;;======================================================================
;; U S E F U L   S T U F F
;;======================================================================

(define (common:low-noise-print waitval . keys)
  (let* ((key      (string-intersperse (map conc keys) "-" ))
	 (lasttime (hash-table-ref/default *common:denoise* key 0))
	 (currtime (current-seconds)))
    (if (> (- currtime lasttime) waitval)
	(begin
	  (hash-table-set! *common:denoise* key currtime)
	  #t)
	#f)))

(define (common:get-megatest-exe)
  (if (getenv "MT_MEGATEST") (getenv "MT_MEGATEST") "megatest"))

(define (common:read-encoded-string instr)
  (handle-exceptions
   exn
   (handle-exceptions
    exn
    (begin
      (debug:print 0 "ERROR: received bad encoded string \"" instr "\", message: " ((condition-property-accessor 'exn 'message) exn))
      (print-call-chain (current-error-port))
      #f)
    (read (open-input-string (base64:base64-decode instr))))
   (read (open-input-string (z3:decode-buffer (base64:base64-decode instr))))))

;; dot-locking egg seems not to work, using this for now
;; if lock is older than expire-time then remove it and try again
;; to get the lock
;;
(define (common:simple-file-lock fname #!key (expire-time 300))
  (if (file-exists? fname)
      (if (> (- (current-seconds)(file-modification-time fname)) expire-time)
	  (begin
	    (delete-file* fname)
	    (common:simple-file-lock fname expire-time: expire-time))
	  #f)
      (let ((key-string (conc (get-host-name) "-" (current-process-id))))
	(with-output-to-file fname
	  (lambda ()
	    (print key-string)))
	(thread-sleep! 0.25)
	(with-input-from-file fname
	  (lambda ()
	    (equal? key-string (read-line)))))))
	
(define (common:simple-file-release-lock fname)
  (delete-file* fname))

;;======================================================================
;; S T A T E S   A N D   S T A T U S E S
;;======================================================================

(define *common:std-states*   
  '((0 "COMPLETED")
    (1 "NOT_STARTED")
    (2 "RUNNING")
    (3 "REMOTEHOSTSTART")
    (4 "LAUNCHED")
    (5 "KILLED")
    (6 "KILLREQ")
    (7 "STUCK")
    (8 "ARCHIVED")))

(define *common:std-statuses*
  '((0 "PASS")
    (1 "WARN")
    (2 "FAIL")
    (3 "CHECK")
    (4 "n/a")
    (5 "WAIVED")
    (6 "SKIP")
    (7 "DELETED")
    (8 "STUCK/DEAD")
    (9 "ABORT")))

;; These are stopping conditions that prevent a test from being run
(define *common:cant-run-states-sym* 
  '(COMPLETED KILLED WAIVED UNKNOWN INCOMPLETE ABORT ARCHIVED))

;;======================================================================
;; D E B U G G I N G   S T U F F 
;;======================================================================

(define *verbosity*         1)
(define *logging*           #f)

(define (get-with-default val default)
  (let ((val (args:get-arg val)))
    (if val val default)))

(define (assoc/default key lst . default)
  (let ((res (assoc key lst)))
    (if res (cadr res)(if (null? default) #f (car default)))))

(define (common:get-testsuite-name)
  (or (configf:lookup *configdat* "setup" "testsuite" )
       (pathname-file *toppath*)))

;;======================================================================
;; E X I T   H A N D L I N G
;;======================================================================

(define (std-exit-procedure)
  (debug:print-info 2 "starting exit process, finalizing databases.")
  (rmt:print-db-stats)
  (let ((run-ids (hash-table-keys *db-local-sync*)))
    (if (and (not (null? run-ids))
	     (configf:lookup *configdat* "setup" "megatest-db"))
	(db:multi-db-sync run-ids 'new2old)))
  (if *dbstruct-db* (db:close-all *dbstruct-db*))
  (if *inmemdb*     (db:close-all *inmemdb*))
  (if (and *megatest-db*
	   (sqlite3:database? *megatest-db*))
      (begin
	(sqlite3:interrupt! *megatest-db*)
	(sqlite3:finalize! *megatest-db* #t)
	(set! *megatest-db* #f)))
  (if *task-db*     (let ((db (cdr *task-db*)))
		      (if (sqlite3:database? db)
			  (begin
			    (sqlite3:interrupt! db)
			    (sqlite3:finalize! db #t)
			    (vector-set! *task-db* 0 #f))))))

(define (std-signal-handler signum)
  (signal-mask! signum)
  (debug:print 0 "ERROR: Received signal " signum " exiting promptly")
  ;; (std-exit-procedure) ;; shouldn't need this since we are exiting and it will be called anyway
  (exit))

(set-signal-handler! signal/int std-signal-handler)
(set-signal-handler! signal/term std-signal-handler)

;;======================================================================
;; Misc utils
;;======================================================================

;; Convert strings like "5s 2h 3m" => 60x60x2 + 3x60 + 5
(define (common:hms-string->seconds tstr)
  (let ((parts     (string-split tstr))

	     (if (string-match (regexp modpatt) item)
		 (set! res #t))))
	 (string-split patts ","))
	res)
      #t))

;; (map print (map car (hash-table->alist (read-config "runconfigs.config" #f #t))))
(define (common:get-runconfig-targets #!key (configf #f))
  (sort (map car (hash-table->alist
		  (or configf
		      (read-config "runconfigs.config"
			       #f #t))))
	string<?))

;; '(print (string-intersperse (map cadr (hash-table-ref/default (read-config "megatest.config" \#f \#t) "disks" '"'"'("none" ""))) "\n"))'
(define (common:get-disks #!key (configf #f))
  (hash-table-ref/default 
   (or configf (read-config "megatest.config" #f #t))
   "disks" '("none" "")))

;;======================================================================
;; T A R G E T S
;;======================================================================

(define (common:args-get-target #!key (split #f))

;; return a nice clean pathname made absolute
(define (nice-path dir)
  (normalize-pathname (if (absolute-pathname? dir)
			  dir
			  (conc (current-directory) "/" dir))))















(define (get-cpu-load)
  (car (common:get-cpu-load)))
;;   (let* ((load-res (cmd-run->list "uptime"))
;; 	 (load-rx  (regexp "load average:\\s+(\\d+)"))
;; 	 (cpu-load #f))
;;     (for-each (lambda (l)
;; 		(let ((match (string-search load-rx l)))

(define (get-uname . params)
  (let* ((uname-res (cmd-run->list (conc "uname " (if (null? params) "-a" (car params)))))
	 (uname #f))
    (if (null? (car uname-res))
	"unknown"
	(caar uname-res))))

;;======================================================================
;; D I S K   S P A C E 
;;======================================================================

(define (common:get-disk-space-used fpath)
  (with-input-from-pipe (conc "/usr/bin/du -s " fpath) read))

(define (get-df path)
  (let* ((df-results (cmd-run->list (conc "df " path)))
	 (space-rx   (regexp "([0-9]+)\\s+([0-9]+)%"))
	 (freespc    #f))
    ;; (write df-results)
    (for-each (lambda (l)
		(let ((match (string-search space-rx l)))
		  (if match 
		      (let ((newval (string->number (cadr match))))
			(if (number? newval)
			    (set! freespc newval))))))
	      (car df-results))
    freespc))
  
;; paths is list of lists ((name path) ... )
;;
(define (common:get-disk-with-most-free-space disks minsize)
  (let ((best     #f)
	(bestsize 0))
    (for-each 
     (lambda (disk-num)
       (let* ((dirpath    (cadr (assoc disk-num disks)))
	      (freespc    (cond
			   ((not (directory? dirpath))
			    (if (common:low-noise-print 50 "disks not a dir " disk-num)
				(debug:print 0 "WARNING: disk " disk-num " at path " dirpath " is not a directory - ignoring it."))
			    -1)
			   ((not (file-write-access? dirpath))
			    (if (common:low-noise-print 50 "disks not writeable " disk-num)
				(debug:print 0 "WARNING: disk " disk-num " at path " dirpath " is not writeable - ignoring it."))
			    -1)
			   ((not (eq? (string-ref dirpath 0) #\/))
			    (if (common:low-noise-print 50 "disks not a proper path " disk-num)
				(debug:print 0 "WARNING: disk " disk-num " at path " dirpath " is not a fully qualified path - ignoring it."))
			    -1)
			   (else
			    (get-df dirpath)))))
	 (if (> freespc bestsize)
	     (begin
	       (set! best     (cons disk-num dirpath))
	       (set! bestsize freespc)))))
     (map car disks))
    (if (and best (> bestsize minsize))
	best
	#f))) ;; #f means no disk candidate found

;;======================================================================
;; E N V I R O N M E N T   V A R S
;;======================================================================
	      
(define (save-environment-as-files fname #!key (ignorevars (list "USER" "HOME" "DISPLAY" "LS_COLORS" "XKEYSYMDB" "EDITOR" "MAKEFLAGS" "MAKEF")))
  (let ((envvars (get-environment-variables))
        (whitesp (regexp "[^a-zA-Z0-9_\\-:,.\\/%$]")))
     (with-output-to-file (conc fname ".csh")
       (lambda ()
          (for-each (lambda (keyval)
		      (let* ((key   (car keyval))
			     (val   (cdr keyval))

(define (seconds->year-work-week/day sec)
  (time->string
   (seconds->local-time sec) "%yww%V.%w"))

(define (seconds->year-work-week/day-time sec)
  (time->string
   (seconds->local-time sec) "%yww%V.%w %H:%M"))

(define (seconds->quarter sec)
  (case (string->number
	 (time->string 
	  (seconds->local-time sec)
	  "%m"))
    ((1 2 3) 1)
    ((4 5 6) 2)
    ((7 8 9) 3)
    ((10 11 12) 4)
    (else #f)))

;;======================================================================
;; Colors
;;======================================================================
      
(define (common:name->iup-color name)
  (case (string->symbol (string-downcase name))

  (cond
   ((equal? status "PASS")    "green")
   ((equal? status "FAIL")    "red")
   ((equal? status "WARN")    "orange")
   ((equal? status "KILLED")  "orange")
   ((equal? status "KILLREQ") "purple")
   ((equal? status "RUNNING") "blue")
   ((equal? status "ABORT")   "brown")
   (else "black")))