commander-s/scheme/job-viewer.scm

269 lines
7.0 KiB
Scheme

(define key-f (char->ascii #\f))
(define key-s (char->ascii #\s))
(define key-g (char->ascii #\g))
(define key-b (char->ascii #\b))
(define fg-key key-f)
(define bg-key key-b)
(define stop-job-key key-s)
(define refresh-key key-g)
(define (job-name->string name)
(let ((port (open-output-string)))
(display name port)
(get-output-string port)))
(define (short-date date)
(fill-up-string 10
(format-date "~H:~M:~S" date)))
(define (format-job-run-state job)
(fill-up-string 12
(cond
((job-running? job) "running")
((job-ready? job) "ready")
((job-waiting-for-input? job) "wait/input")
((job-has-new-output? job) "wait/output")
((job-stopped? job) "stopped")
(else "run/output"))))
(define (format-job job num-cols)
(cut-to-size num-cols
(string-append
(fill-up-string
20 (job-name->string (job-name job)))
" "
(format-job-run-state job)
" "
(short-date (job-start-time job))
" "
(if (job-end-time job)
(short-date (job-end-time job))
(fill-up-string 12 "-"))
" "
(fill-up-string
6 (if (job-end-time job)
(number->string (job-status job))
"-")))))
(define (make-joblist-headline num-cols)
(cut-to-size
num-cols
(string-append
(fill-up-string 20 "NAME")
" "
(fill-up-string 12 "RUN STATUS")
" "
(fill-up-string 10 "START")
" "
(fill-up-string 10 "END")
" "
(fill-up-string 6 "STATUS"))))
(define (make-joblist-viewer jobs buffer)
(let* ((jobs jobs)
(num-cols (- (result-buffer-num-cols buffer) 1))
(headline (make-joblist-headline num-cols))
(select-list
(make-select-list
(map (lambda (job)
(make-unmarked-element
job #t (format-job job num-cols)))
jobs)
(- (result-buffer-num-lines buffer) 2))))
(define get-selection-as-ref
(make-get-selection-as-ref-method select-list))
(define (get-selection-as-text self for-scheme-mode? focus-object-table)
(if for-scheme-mode?
(send self 'get-selection-as-ref focus-object-table)
(let ((marked (select-list-get-marked select-list)))
(if (null? marked)
(number->string
(proc:pid (job-proc (select-list-selected-entry select-list))))
(string-join (map (lambda (job)
(number->string
(proc:pid (job-proc job))))
marked))))))
(lambda (message)
(case message
((paint)
(lambda (self win buffer have-focus?)
(mvwaddstr win 0 0 headline)
(paint-selection-list-at
select-list 0 1 win buffer have-focus?)))
((key-press)
(lambda (self key control-x-pressed?)
(cond
((= key fg-key)
(continue-job-in-foreground (select-list-selected-entry select-list)))
((= key bg-key)
(continue-job-in-background (select-list-selected-entry select-list)))
((= key stop-job-key)
(stop-job (select-list-selected-entry select-list)))
((= key refresh-key)
#f) ;; TODO
(else
(set! select-list
(select-list-handle-key-press select-list key))))
self))
((get-selection-as-text) get-selection-as-text)
((get-selection-as-ref) get-selection-as-ref)
(else
(error "joblist-viewer unknown message" message))))))
(define (list-of-jobs? thing)
(and (proper-list? thing) (every job? thing)))
(register-plugin!
(make-view-plugin make-joblist-viewer list-of-jobs?))
(define format-signal-no
(let ((signal/name-alist
`((,signal/alrm . signal/alrm)
(,signal/int . signal/int)
(,signal/chld . signal/chld)
(,signal/cont . signal/cont)
(,signal/hup . signal/hup)
(,signal/quit . signal/quit)
(,signal/term . signal/term)
(,signal/tstp . signal/tstp)
(,signal/usr1 . signal/usr1)
(,signal/usr2 . signal/usr2)
(,signal/stop . signal/stop)
(,signal/kill . signal/kill)
(,signal/abrt . signal/abrt)
(,signal/fpe . signal/fpe)
(,signal/ill . signal/ill)
(,signal/pipe . signal/pipe)
(,signal/segv . signal/segv)
(,signal/ttin . signal/ttin)
(,signal/ttou . signal/ttou))))
(lambda (no)
(cond
((assoc no signal/name-alist)
=> (lambda (p)
(symbol->string (cdr p))))
(else "some non-POSIX signal")))))
(define (format-job-status job)
(let ((status (job-status job)))
(debug-message "format-job-status " status)
(cond
((status:exit-val status)
=> (lambda (code)
(string-append "exited normally with code "
(number->string code))))
((status:stop-sig status)
=> (lambda (signal-no)
(string-append "suspended by signal "
(format-signal-no signal-no))))
((status:term-sig status)
=> (lambda (signal-no)
(string-append "terminated by signal "
(format-signal-no signal-no)))))))
;;; viewer for a single job viewer
(define (make-job-viewer job buffer)
(let ((select-list #f)
(num-cols
(- (result-buffer-num-cols buffer) 1))
(console-viewer
(if (job-with-console? job)
(make-console-viewer (job-console job) buffer)
#f)))
(define (make-job-select-list job)
(make-select-list
(map
(lambda (args)
(make-unmarked-element
(car args) #f
(cut-to-size
num-cols
(apply string-append
(append
(list (fill-up-string 15 (cadr args)))
(cddr args))))))
`((,job
"name:" ,(job-name->string (job-name job)))
(,(if (job-end-time job) (job-status job) #f)
"status:"
,(if (job-end-time job)
(format-job-status job)
"n/a"))
(,(job-start-time job)
"start:"
,(short-date (job-start-time job)))
(,(job-end-time job)
"end:"
,(if (job-end-time job)
(short-date (job-end-time job))
"-"))
(#f "run status:"
,(format-job-run-state job))
,@(if (job-with-console? job)
`((,console-viewer "<View Console>" ""))
'())))
(- (result-buffer-num-lines buffer) 3)))
(define (handle-key-press self key control-x-pressed?)
(cond
((= key fg-key)
(continue-job-in-foreground job)
self)
((= key bg-key)
(continue-job-in-background job)
self)
((= key refresh-key)
(set! select-list (make-job-select-list job))
self)
((= key stop-job-key)
(stop-job job)
self)
((and (= key 10)
(procedure? (select-list-selected-entry select-list)))
(select-list-selected-entry select-list))
(else
(set! select-list
(select-list-handle-key-press select-list key))
self)))
(set! select-list (make-job-select-list job))
(lambda (message)
(case message
((paint)
(lambda (self win buffer have-focus?)
(mvwaddstr
win 0 0 (cut-to-size num-cols "Viewing job"))
(paint-selection-list-at
select-list 0 1 win buffer have-focus?)))
((key-press) handle-key-press)
((get-selection-as-ref)
(make-get-selection-as-ref-method select-list))
((get-selection-as-text)
(lambda (self focus? focus-table)
((make-get-selection-as-ref-method select-list)
self focus-table)))
(else
(error "job viewer unknown message" message))))))
(register-plugin!
(make-view-plugin make-job-viewer job?))