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Remote usage of audio-placed-player.rkt

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Hans Dijkema
2026-06-08 15:46:27 +02:00
parent 17846e068c
commit 6ed566c6cd
9 changed files with 624 additions and 91 deletions
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private/remote-utils.rkt
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#lang racket/base
(require racket/list
racket/path
racket/string
racket/system
port-channel
uni-channel)
(provide remote-path-map?
audio-remote-path
racket-sound-default-ssh-program
racket-sound-default-ssh-options
racket-sound-default-remote-racket
racket-sound-default-remote-module
racket-sound-default-remote-command
racket-sound-resolve-executable
racket-sound-start-ssh-subprocess
current-racket-sound-ssh-program
current-racket-sound-remote-racket
current-racket-sound-remote-module
make-remote-port-uni-channels
start-remote-placed-player)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Remote path mapping
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define (path-string->string p)
(if (path? p) (path->string p) p))
(define (remote-path-map? v)
(or (not v)
(procedure? v)
(and (list? v)
(andmap (lambda (entry)
(cond [(and (pair? entry) (pair? (cdr entry)) (null? (cddr entry)))
(and (path-string? (car entry)) (path-string? (cadr entry)))]
[(and (pair? entry) (path-string? (car entry)) (path-string? (cdr entry))) #t]
[(vector? entry)
(and (= (vector-length entry) 2)
(path-string? (vector-ref entry 0))
(path-string? (vector-ref entry 1)))]
[else #f]))
v))))
(define (path-map-entry-local entry)
(path-string->string
(cond [(vector? entry) (vector-ref entry 0)]
[(and (pair? entry) (pair? (cdr entry)) (null? (cddr entry))) (car entry)]
[else (car entry)])))
(define (path-map-entry-remote entry)
(path-string->string
(cond [(vector? entry) (vector-ref entry 1)]
[(and (pair? entry) (pair? (cdr entry)) (null? (cddr entry))) (cadr entry)]
[else (cdr entry)])))
(define (replace-prefix s from to)
(string-append to (substring s (string-length from))))
(define (audio-remote-path path map)
(define s (path-string->string path))
(cond [(not map) s]
[(procedure? map) (map s)]
[(null? map) s]
[else
(define matches
(filter (lambda (entry) (string-prefix? s (path-map-entry-local entry))) map))
(cond [(null? matches) s]
[else
(define best
(argmax (lambda (entry) (string-length (path-map-entry-local entry))) matches))
(replace-prefix s (path-map-entry-local best) (path-map-entry-remote best))])]))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; SSH / subprocess defaults
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define (executable-name p)
(let ((p* (if (path? p) p (string->path p))))
(path->string (file-name-from-path p*))))
(define (plink-program? p)
(regexp-match? #rx"(?i:^plink(\\.exe)?$)" (executable-name p)))
(define (racket-sound-default-ssh-program)
(cond [(eq? (system-type 'os) 'windows)
(cond [(find-executable-path "plink.exe") => values]
[(find-executable-path "plink") => values]
[(find-executable-path "ssh.exe") => values]
[(find-executable-path "ssh") => values]
[else "plink.exe"])]
[else
(cond [(find-executable-path "ssh") => values]
[else "ssh"])]))
(define (racket-sound-default-ssh-options [ssh-program (racket-sound-default-ssh-program)])
(if (plink-program? ssh-program)
'("-batch" "-T")
'("-T" "-q")))
(define (racket-sound-default-remote-racket) "racket")
(define (racket-sound-default-remote-module) "racket-audio/audio-placed-player")
(define (racket-sound-default-remote-command
[remote-racket (racket-sound-default-remote-racket)]
[remote-module (racket-sound-default-remote-module)])
(list remote-racket "-l" remote-module "--" "--stdio"))
(define current-racket-sound-ssh-program
(make-parameter (racket-sound-default-ssh-program)))
(define current-racket-sound-remote-racket
(make-parameter (racket-sound-default-remote-racket)))
(define current-racket-sound-remote-module
(make-parameter (racket-sound-default-remote-module)))
(define (racket-sound-resolve-executable p)
(or (find-executable-path p) p))
(define (racket-sound-start-ssh-subprocess remote-host remote-command
#:ssh-program [ssh-program (current-racket-sound-ssh-program)]
#:ssh-options [ssh-options #f])
(define ssh-options* (or ssh-options (racket-sound-default-ssh-options ssh-program)))
(define args (append ssh-options* (list remote-host) remote-command))
(apply subprocess #f #f #f (racket-sound-resolve-executable ssh-program) args))
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Port-channel wrapping
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(define (make-port-uc port direction source)
(make-uni-channel (make-port-channel port #:direction direction #:source source #:close? #t)))
(define (make-remote-port-uni-channels stdout stdin stderr)
(values (make-port-uc stdin 'output 'remote-stdin)
(make-port-uc stdout 'input 'remote-stdout)
(make-port-uc stderr 'input 'remote-stderr)))
(define (start-remote-placed-player remote-host
#:ssh-program [ssh-program (current-racket-sound-ssh-program)]
#:ssh-options [ssh-options #f]
#:remote-command [remote-command (racket-sound-default-remote-command)])
(define-values (proc stdout stdin stderr)
(racket-sound-start-ssh-subprocess remote-host remote-command
#:ssh-program ssh-program
#:ssh-options ssh-options))
(define-values (cmd-ch ret-ch evt-ch)
(make-remote-port-uni-channels stdout stdin stderr))
(define dead-guard (lambda () (subprocess-wait proc)))
(values cmd-ch ret-ch evt-ch proc dead-guard))