Megatest

(declare (unit configf))
(declare (uses common))
(declare (uses process))

(include "common_records.scm")

;; return list (path fullpath configname)
(define (find-config configname #!key (toppath #f))
  (if toppath
      (let ((cfname (conc toppath "/" configname)))
	(if (file-exists? cfname)
	    (list toppath cfname configname)
	    (list #f      #f     #f)))
      (let* ((cwd (string-split (current-directory) "/")))
	(let loop ((dir cwd))
	  (let* ((path     (conc "/" (string-intersperse dir "/")))
		 (fullpath (conc path "/" configname)))
	    (if (file-exists? fullpath)
		(list path fullpath configname)
		(let ((remcwd (take dir (- (length dir) 1))))
		  (if (null? remcwd)
		      (list #f #f #f) ;;  #f #f) 
		  (loop remcwd)))))))))

(define (config:assoc-safe-add alist key val)
  (let ((newalist (filter (lambda (x)(not (equal? key (car x)))) alist)))
    (append newalist (list (list key val)))))

(define (config:eval-string-in-environment str)
  (let ((cmdres (cmd-run->list (conc "echo " str))))

								       (config:assoc-safe-add alist var-flag newval))
						      (loop (configf:read-line inp res) curr-section-name var-flag (if lead lead whsp)))
						    (loop (configf:read-line inp res) curr-section-name #f #f))))
	       (else (debug:print 0 "ERROR: problem parsing " path ",\n   \"" inl "\"")
		     (set! var-flag #f)
		     (loop (configf:read-line inp res) curr-section-name #f #f))))))))
  
(define (find-and-read-config fname #!key (environ-patt #f)(given-toppath #f))
  (let* ((curr-dir   (current-directory))
         (configinfo (find-config fname toppath: given-toppath))
	 (toppath    (car configinfo))
	 (configfile (cadr configinfo)))
    (if toppath (change-directory toppath)) 
    (let ((configdat  (if configfile (read-config configfile #f #t environ-patt: environ-patt) #f))) ;; (make-hash-table))))
      (if toppath (change-directory curr-dir))
      (list configdat toppath configfile fname))))

(define (config-lookup cfgdat section var)
  (if (hash-table? cfgdat)
      (let ((sectdat (hash-table-ref/default cfgdat section '())))
	(if (null? sectdat)
	    #f
	    (let ((match (assoc var sectdat)))
	      (if match ;; (and match (list? match)(> (length match) 1))
		  (cadr match)
		  #f))
	    ))
      #f))

(define (configf:section-vars cfgdat section)
  (let ((sectdat (hash-table-ref/default cfgdat section '())))
    (if (null? sectdat)
	'()
	(map car sectdat))))

(define (open-db) ;;  (conc *toppath* "/megatest.db") (car *configinfo*)))
  (let* ((dbpath    (conc *toppath* "/megatest.db")) ;; fname)
	 (dbexists  (file-exists? dbpath))
	 (db        (sqlite3:open-database dbpath)) ;; (never-give-up-open-db dbpath))
	 (handler   (make-busy-timeout (if (args:get-arg "-override-timeout")
					   (string->number (args:get-arg "-override-timeout"))
					   36000)))) ;; 136000)))
    (debug:print 4 "INFO: dbpath=" dbpath)
    (sqlite3:set-busy-handler! db handler)
    (if (not dbexists)
	(db:initialize db))
    (if (config-lookup *configdat* "setup"     "synchronous")
	(begin
	  (debug:print 4 "INFO: Turning on pragma synchronous")
	  (sqlite3:execute db "PRAGMA synchronous = 0;"))
	(debug:print 4 "INFO: NOT turning on pragma synchronous"))
    db))

(define (db:initialize db)
  (let* ((configdat (car *configinfo*))  ;; tut tut, global warning...
	 (keys     (config-get-fields configdat))
	 (havekeys (> (length keys) 0))
	 (keystr   (keys->keystr keys))

     db 
     "SELECT id,run_id,testname,state,status,event_time,host,cpuload,diskfree,uname,rundir,item_path,run_duration,final_logf,comment FROM tests WHERE run_id=? AND testname=? AND item_path=?;"
     run-id testname item-path)
    res))

;; Get test data using test_id
(define (db:get-test-data-by-id db test-id)
  (if (not test-id)
      (begin
	(debug:print 0 "INFO: db:get-test-data-by-id called with test-id=" test-id)
	#f)
      (let ((res #f))
	(sqlite3:for-each-row
	 (lambda (id run-id testname state status event-time host cpuload diskfree uname rundir item-path run_duration final_logf comment)
	   (set! res (vector id run-id testname state status event-time host cpuload diskfree uname rundir item-path run_duration final_logf comment)))
	 db 
	 "SELECT id,run_id,testname,state,status,event_time,host,cpuload,diskfree,uname,rundir,item_path,run_duration,final_logf,comment FROM tests WHERE id=?;"
	 test-id)
	res)))


(define (db:test-set-comment db test-id comment)
  (sqlite3:execute 
   db 
   "UPDATE tests SET comment=? WHERE id=?;"
   comment test-id))

(define (launch:execute encoded-cmd)
  (let* ((cmdinfo   (read (open-input-string (base64:base64-decode encoded-cmd)))))
    (setenv "MT_CMDINFO" encoded-cmd)
    (if (list? cmdinfo) ;; ((testpath /tmp/mrwellan/jazzmind/src/example_run/tests/sqlitespeed)
                        ;; (test-name sqlitespeed) (runscript runscript.rb) (db-host localhost) (run-id 1))
	(let* ((testpath  (assoc/default 'testpath  cmdinfo))
	       (top-path  (assoc/default 'toppath   cmdinfo))
	       (work-area (assoc/default 'work-area cmdinfo))
	       (test-name (assoc/default 'test-name cmdinfo))
	       (runscript (assoc/default 'runscript cmdinfo))
	       (ezsteps   (assoc/default 'ezsteps   cmdinfo))
	       (db-host   (assoc/default 'db-host   cmdinfo))
	       (run-id    (assoc/default 'run-id    cmdinfo))
	       (test-id   (assoc/default 'test-id   cmdinfo))
	       (target    (assoc/default 'target    cmdinfo))
	       (itemdat   (assoc/default 'itemdat   cmdinfo))
	       (env-ovrd  (assoc/default 'env-ovrd  cmdinfo))
	       (set-vars  (assoc/default 'set-vars  cmdinfo)) ;; pre-overrides from -setvar
	       (runname   (assoc/default 'runname   cmdinfo))
	       (megatest  (assoc/default 'megatest  cmdinfo))
	       (mt-bindir-path (assoc/default 'mt-bindir-path cmdinfo))
	       (fullrunscript (if runscript (conc testpath "/" runscript) #f))
	       (db        #f)
	       (rollup-status 0))
	  
	  (debug:print 2 "Exectuing " test-name " (id: " test-id ") on " (get-host-name))

	  ;; apply pre-overrides before other variables. The pre-override vars must not
	  ;; clobbers things from the official sources such as megatest.config and runconfigs.config
	  (if (string? set-vars)
	      (let ((varpairs (string-split set-vars ",")))
		(debug:print 4 "varpairs: " varpairs)
		(map (lambda (varpair)
		       (let ((varval (string-split varpair "=")))
			 (if (eq? (length varval) 2)
			     (let ((var (car varval))
				   (val (cadr varval)))
			       (debug:print 1 "Adding pre-var/val " var " = " val " to the environment")
			       (setenv var val)))))
		     varpairs)))
	  (setenv "MT_TEST_RUN_DIR" work-area)
	  (setenv "MT_TEST_NAME" test-name)
	  (setenv "MT_ITEM_INFO" (conc itemdat))
	  (setenv "MT_RUNNAME"   runname)
	  (setenv "MT_MEGATEST"  megatest)
	  (setenv "MT_TARGET"    target)
	  (if mt-bindir-path (setenv "PATH" (conc (getenv "PATH") ":" mt-bindir-path)))
	  (change-directory top-path)
	  (if (not (setup-for-run))
	      (begin
		(debug:print 0 "Failed to setup, exiting") 
		(exit 1)))
	  (change-directory *toppath*)
	  ;; now can find our db
	  (set! db (open-db))
	  (if (not (args:get-arg "-server"))
	      (server:client-setup db))
	  ;; (set! *cache-on* #t)
	  (set-megatest-env-vars db run-id) ;; these may be needed by the launching process
	  (change-directory work-area) 

	    (if (not (vector-ref exit-info 1))
		(exit 4)))))))

;; set up the very basics needed for doing anything here.
(define (setup-for-run)
  ;; would set values for KEYS in the environment here for better support of env-override but 
  ;; have chicken/egg scenario. need to read megatest.config then read it again. Going to 
  ;; pass on that idea for now
  ;; special case
  (set! *configinfo* (find-and-read-config 
		      (if (args:get-arg "-config")(args:get-arg "-config") "megatest.config")
		      environ-patt: "env-override"
		      given-toppath: (get-environment-variable "MT_RUN_AREA_HOME")))
  (set! *configdat*  (if (car *configinfo*)(car *configinfo*) #f))
  (set! *toppath*    (if (car *configinfo*)(cadr *configinfo*) #f))
  (if *toppath*
      (setenv "MT_RUN_AREA_HOME" *toppath*) ;; to be deprecated
      (debug:print 0 "ERROR: failed to find the top path to your run setup."))
  *toppath*)

    ;; if the test is iterated it is necessary to create the parent path
    ;; to the iteration. use pathname-directory to trim the path by one
    ;; level
    (if (not not-iterated) ;; i.e. iterated
	(let ((iterated-parent  (pathname-directory (conc lnkpath "/" item-path))))
	  (debug:print 2 "INFO: Creating iterated parent " iterated-parent)
	  (create-directory iterated-parent #t)))
    (if (not (or (file-exists? lnkpath)
		 (symbolic-link? lnkpath)))
	(create-symbolic-link toptest-path lnkpath))
    
    ;; The toptest path has been created, the link to the test in the linktree has
    ;; been created. Now, if this is an iterated test the real test dir must be created
    (if (not not-iterated) ;; this is an iterated test
	(let ((lnktarget (conc lnkpath "/" item-path)))
	  (debug:print 2 "Setting up sub test run area")

;; 3. create link from run dir to megatest runs area 
;; 4. remotely run the test on allocated host
;;    - could be ssh to host from hosts table (update regularly with load)
;;    - could be netbatch
;;      (launch-test db (cadr status) test-conf))
(define (launch-test db run-id runname test-conf keyvallst test-name test-path itemdat params)
  (change-directory *toppath*)
  (alist->env-vars ;; consolidate this code with the code in megatest.scm for "-execute"
   (list ;; (list "MT_TEST_RUN_DIR" work-area)
	 (list "MT_RUN_AREA_HOME" *toppath*)
	 (list "MT_TEST_NAME" test-name)
	 ;; (list "MT_ITEM_INFO" (conc itemdat)) 
	 (list "MT_RUNNAME"   runname)
	 ;; (list "MT_TARGET"    mt_target)
	 ))
  (let* ((useshell   (config-lookup *configdat* "jobtools"     "useshell"))
	 (launcher   (config-lookup *configdat* "jobtools"     "launcher"))
	 (runscript  (config-lookup test-conf   "setup"        "runscript"))
	 (ezsteps    (> (length (hash-table-ref/default test-conf "ezsteps" '())) 0)) ;; don't send all the steps, could be big
	 (diskspace  (config-lookup test-conf   "requirements" "diskspace"))
	 (memory     (config-lookup test-conf   "requirements" "memory"))
	 (hosts      (config-lookup *configdat* "jobtools"     "workhosts"))

	 (diskpath   #f)
	 (cmdparms   #f)
	 (fullcmd    #f) ;; (define a (with-output-to-string (lambda ()(write x))))
	 (mt-bindir-path #f)
	 (item-path (item-list->path itemdat))
	 (testinfo   (rdb:get-test-info db run-id test-name item-path))
	 (test-id    (db:test-get-id testinfo))
	 (mt_target  (string-intersperse (map cadr keyvallst) "/"))
	 (debug-param (if (args:get-arg "-debug")(list "-debug" (args:get-arg "-debug")) '())))
    (if hosts (set! hosts (string-split hosts)))
    ;; set the megatest to be called on the remote host
    (if (not remote-megatest)(set! remote-megatest local-megatest)) ;; "megatest"))
    (set! mt-bindir-path (pathname-directory remote-megatest))
    (if launcher (set! launcher (string-split launcher)))
    ;; set up the run work area for this test
    (set! diskpath (get-best-disk *configdat*))
    (if diskpath
	(let ((dat  (create-work-area db run-id test-path diskpath test-name itemdat)))
	  (set! work-area (car dat))
	  (set! toptest-work-area (cadr dat))
	  (debug:print 2 "INFO: Using work area " work-area))
	(begin
	  (set! work-area (conc test-path "/tmp_run"))
	  (create-directory work-area #t)
	  (debug:print 0 "WARNING: No disk work area specified - running in the test directory under tmp_run")))
    (set! cmdparms (base64:base64-encode (with-output-to-string
					   (lambda () ;; (list 'hosts     hosts)
					     (write (list (list 'testpath  test-path)
							  (list 'toppath   *toppath*)
							  (list 'work-area work-area)
							  (list 'test-name test-name) 
							  (list 'runscript runscript) 
							  (list 'run-id    run-id   )
							  (list 'test-id   test-id  )
							  (list 'itemdat   itemdat  )
							  (list 'megatest  remote-megatest)
							  (list 'ezsteps   ezsteps) 
							  (list 'target    mt_target)
							  (list 'env-ovrd  (hash-table-ref/default *configdat* "env-override" '())) 
							  (list 'set-vars  (if params (hash-table-ref/default params "-setvars" #f)))
							  (list 'runname   runname)
							  (list 'mt-bindir-path mt-bindir-path))))))) ;; (string-intersperse keyvallst " "))))
    ;; clean out step records from previous run if they exist
    (db:delete-test-step-records db run-id test-name itemdat)
    (change-directory work-area) ;; so that log files from the launch process don't clutter the test dir

    ;; set pre-launch-env-vars before launching, keep the vars in prevvals and put the envionment back when done
    (debug:print 4 "fullcmd: " fullcmd)
    (let* ((commonprevvals (alist->env-vars
			    (hash-table-ref/default *configdat* "env-override" '())))
	   (testprevvals   (alist->env-vars
			    (hash-table-ref/default test-conf "pre-launch-env-overrides" '())))
	   (miscprevvals   (alist->env-vars ;; consolidate this code with the code in megatest.scm for "-execute"
			    (append (list (list "MT_TEST_RUN_DIR" work-area)
					  (list "MT_TEST_NAME" test-name)
					  (list "MT_ITEM_INFO" (conc itemdat)) 
					  (list "MT_RUNNAME"   runname)
					  (list "MT_TARGET"    mt_target)
					  )
				    itemdat)))
	   (launch-results (apply cmd-run-proc-each-line
				  (if useshell
				      (string-intersperse fullcmd " ")
				      (car fullcmd))
				  print
				  (if useshell
				      '()
				      (cdr fullcmd))))) ;;  launcher fullcmd)));; (apply cmd-run-proc-each-line launcher print fullcmd))) ;; (cmd-run->list fullcmd))
      (with-output-to-file "mt_launch.log"
	(lambda ()
	  (apply print launch-results)))
      (debug:print 2 "Launching completed, updating db")
      (debug:print 2 "Launch results: " launch-results)
      (if (not launch-results)
	  (begin
	    (print "ERROR: Failed to run " (string-intersperse fullcmd " ") ", exiting now")
	    (sqlite3:finalize! db)
	    ;; good ole "exit" seems not to work
	    ;; (_exit 9)
	    ;; but this hack will work! Thanks go to Alan Post of the Chicken email list
	    ;; NB// Is this still needed? Should be safe to go back to "exit" now?
	    (process-signal (current-process-id) signal/kill)
	    ))
      (alist->env-vars miscprevvals)
      (alist->env-vars testprevvals)
      (alist->env-vars commonprevvals)
      launch-results))
  (change-directory *toppath*))

;; Always use two digit decimal
;; 1.01, 1.02...1.10,1.11 ... 1.99,2.00..

(declare (unit megatest-version))

(define megatest-version 1.4403)

  -load-test-data         : read test specific data for storage in the test_data table
                            from standard in. Each line is comma delimited with four
                            fields category,variable,value,comment

Queries
  -list-runs patt         : list runs matching pattern \"patt\", % is the wildcard
  -showkeys               : show the keys used in this megatest setup
  -test-files targpatt     : get the most recent test path/file matching targpatt e.g. %/%... 
                            returns list sorted by age ascending, see examples below
  -test-paths             : get the test paths matching target, runname, item and test
                            patterns.

Misc 
  -rebuild-db             : bring the database schema up to date
  -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.

                            to windows style
Getting started
  -gen-megatest-area      : create a skeleton megatest area. You will be prompted for paths
  -gen-megatest-test      : create a skeleton megatest test. You will be prompted for info

Examples

# Get test path, use '.' to get a single path or a specific path/file pattern
megatest -test-files 'logs/*.log' -target ubuntu/n%/no% :runname w49% -testpatt test_mt%

Called as " (string-intersperse (argv) " ")))

;;  -gui                    : start a gui interface
;;  -config fname           : override the runconfig file with fname

;; process args

			"-pathmod"
			"-env2file"
			"-setvars"
			"-set-state-status"
			"-debug" ;; for *verbosity* > 2
			"-gen-megatest-test"
			"-override-timeout"
			"-test-files"  ;; -test-paths is for listing all
			) 
		 (list  "-h"
		        "-force"
		        "-xterm"
		        "-showkeys"
		        "-test-status"
			"-set-values"
			"-load-test-data"
			"-summarize-items"
		        "-gui"
			;; misc
			"-archive"
			"-repl"
			"-lock"
			"-unlock"
			;; queries
			"-test-paths" ;; get path(s) to a test, ordered by youngest first


			"-runall"    ;; run all tests
			"-remove-runs"
			"-usequeue"
			"-rebuild-db"
			"-rollup"
			"-update-meta"

		  (args:get-arg "-unlock")
		  user))))

;;======================================================================
;; Get paths to tests
;;======================================================================
;; Get test paths matching target, runname, testpatt, and itempatt
(if (or (args:get-arg "-test-files")(args:get-arg "-test-paths"))
    ;; if we are in a test use the MT_CMDINFO data
    (if (getenv "MT_CMDINFO")
	(let* ((startingdir (current-directory))
	       (cmdinfo   (read (open-input-string (base64:base64-decode (getenv "MT_CMDINFO")))))
	       (testpath  (assoc/default 'testpath  cmdinfo))
	       (test-name (assoc/default 'test-name cmdinfo))
	       (runscript (assoc/default 'runscript cmdinfo))
	       (db-host   (assoc/default 'db-host   cmdinfo))
	       (run-id    (assoc/default 'run-id    cmdinfo))
	       (itemdat   (assoc/default 'itemdat   cmdinfo))
	       (db        #f)
	       (state     (args:get-arg ":state"))
	       (status    (args:get-arg ":status"))
	       (target    (args:get-arg "-target"))
	       (toppath   (assoc/default 'toppath   cmdinfo)))
	  (change-directory toppath)
	  (if (not target)
	      (begin
		(debug:print 0 "ERROR: -target is required.")
		(exit 1)))
	  (if (not (setup-for-run))
	      (begin
		(debug:print 0 "Failed to setup, giving up on -test-paths or -test-files, exiting")
		(exit 1)))
	  (set! db (open-db))    
	  (if (not (args:get-arg "-server"))
	      (server:client-setup db))
	  (let* ((itempatt (args:get-arg "-itempatt"))
		 (keys     (rdb:get-keys db))
		 (keynames (map key:get-fieldname keys))
		 (paths    (rdb:test-get-paths-matching db keynames target (args:get-arg "-test-files"))))
	    (set! *didsomething* #t)
	    (for-each (lambda (path)
			(print path))
		      paths)))
	;; else do a general-run-call
	(general-run-call 
	 "-test-files"
	 "Get paths to test"
	 (lambda (db target runname keys keynames keyvallst)
	   (let* ((itempatt (args:get-arg "-itempatt"))
		  (paths    (rdb:test-get-paths-matching db keynames target (args:get-arg "-test-files"))))
	     (for-each (lambda (path)
			 (print path))
		       paths))))))

;;======================================================================
;; Archive tests
;;======================================================================

	  (rdb:set-tests-state-status db run-id test-names #f "FAIL" "NOT_STARTED" "FAIL")))

    ;; now add non-directly referenced dependencies (i.e. waiton)
    (if (not (null? test-names))
	(let loop ((hed (car test-names))
		   (tal (cdr test-names)))         ;; 'return-procs tells the config reader to prep running system but return a proc
	  (let* ((config  (tests:get-testconfig hed 'return-procs))
		 (waitons (if config (string-split (let ((w (config-lookup config "requirements" "waiton")))
						     (if w w "")))
			      (begin
				(debug:print 0 "ERROR: non-existent required test \"" hed "\"")
                                (sqlite3:finalize! db)
				(exit 1)))))
	    ;; check for hed in waitons => this would be circular, remove it and issue an
	    ;; error
	    (if (member hed waitons)
		(begin
		  (debug:print 0 "ERROR: test " hed " has listed itself as a waiton, please correct this!")
		  (set! waitons (filter (lambda (x)(not (equal? x hed))) waitons))))
	    

			  (debug:print 4 "INFO: Shouldn't really get here, race condition? Unable to launch more tests at this moment, killing time ...")
			  (thread-sleep! 0.1) ;; long sleep here - no resources, may as well be patient
			  ;; we made new tal by sticking hed at the back of the list
			  (loop (car newtal)(cdr newtal)))
			;; the waiton is FAIL so no point in trying to run hed ever again
			(if (not (null? tal))
			    (begin
			      (debug:print 1 "WARN: Dropping test " (db:test-get-testname hed) "/" (db:test-get-item-path hed)
					   " from the launch list as it has prerequistes that are FAIL")
			      (loop (car tal)(cdr tal)))))))))
	     
	     ;; case where an items came in as a list been processed
	     ((and (list? items)     ;; thus we know our items are already calculated
		   (not   itemdat)) ;; and not yet expanded into the list of things to be done
	      (if (and (>= *verbosity* 1)

[setup]

[ezsteps]
lookittmp   ls /tmp
lookithome  ls /home

[test_meta]
author matt
owner  bob
description This test runs a single ezstep which is expected to pass, no logpro file.

tags first,single
reviewed 09/10/2011, by Matt

[fields]
sysname TEXT
fsname TEXT
datapath TEXT

# refareas can be searched to find previous runs
# the path points to where megatest.db exists
[refareas]
area1 /tmp/oldarea/megatest

[include config/mt_include_1.config]

[setup]
synchronous yes

[validvalues]
state start end 
status pass fail n/a 0 1 running

# These are set before all tests, override them 
# in the testconfig [pre-launch-env-overrides] section

[include #{getenv MT_RUN_AREA_HOME}/common_runconfigs.config]

WACKYVAR0 #{get ubuntu/nfs/none CURRENT}
WACKYVAR1 #{scheme (args:get-arg "-target")}

[default/ubuntu/nfs]
WACKYVAR2 #{runconfigs-get CURRENT}

../ez_pass_linked/