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;;======================================================================
;; Process convience utils
;;======================================================================
(use regex)
(declare (unit process))
(declare (uses common))
;;(declare (uses common))
(define (conservative-read port)
(define (process:conservative-read port)
(let loop ((res ""))
(if (not (eof-object? (peek-char port)))
(loop (conc res (read-char port)))
res)))
(define (cmd-run-with-stderr->list cmd . params)
(let ((errstr (conservative-read fhe)))
(let ((errstr (process:conservative-read fhe)))
(if (not (string=? errstr ""))
(set! result (append result (list errstr)))))
(if (not (eof-object? curr))
(loop (read-line fh)
(append result (list curr)))
(begin
(close-input-port fh)
(close-input-port fhe)
(close-output-port fho)
result))))) ;; )
(define (cmd-run-proc-each-line cmd proc . params)
(define (process:cmd-run-proc-each-line cmd proc . params)
;; (print "Called with cmd=" cmd ", proc=" proc ", params=" params)
(handle-exceptions
exn
(begin
(print "ERROR: Failed to run command: " cmd " " (string-intersperse params " "))
(debug:print 0 " message: " ((condition-property-accessor 'exn 'message) exn))
(debug:print 0 #f " message: " ((condition-property-accessor 'exn 'message) exn))
(print "exn=" (condition->list exn))
#f)
(let-values (((fh fho pid) (if (null? params)
(process cmd)
(process cmd params))))
(let loop ((curr (read-line fh))
(result '()))
(if (not (eof-object? curr))
(loop (read-line fh)
(append result (list (proc curr))))
(begin
(close-input-port fh)
(close-input-port fhe)
(close-output-port fho)
result))))))
(define (cmd-run-proc-each-line-alt cmd proc)
(define (process:cmd-run-proc-each-line-alt cmd proc)
(let* ((fh (open-input-pipe cmd))
(res (port-proc->list fh proc))
(status (close-input-pipe fh)))
(if (eq? status 0) res #f)))
(define (cmd-run->list cmd)
(define (process:cmd-run->list cmd)
(let* ((fh (open-input-pipe cmd))
(res (port->list fh))
(status (close-input-pipe fh)))
(list res status)))
(define (port->list fh)
(if (eof-object? fh) #f
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(append result (list curr)))
result))))
;; here is an example line where the shell is sh or bash
;; "find / -print 2&>1 > findall.log"
(define (run-n-wait cmdline #!key (params #f)(print-cmd #f))
(if print-cmd
(debug:print 0
(debug:print 0 #f
(if (string? print-cmd)
print-cmd
"")
cmdline
(if params
(string-intersperse params " ")
"")))
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(handle-exceptions
exn
;; possibly pid is a process not a child, look in /proc to see if it is running still
(file-exists? (conc "/proc/" pid))
(let-values (((rpid exit-type exit-signal)(process-wait pid #t)))
(and (number? rpid)
(equal? rpid pid)))))
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