commander-s/scheme/afs.scm

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(define-record-type acl :acl
(make-acl dir afs-perms)
acl?
(dir acl-dir)
(afs-perms acl-afs-perms))
(define (make-header width dir)
(list
(string-append "Access list for " dir " is")))
(define (layout-afs-perm width p)
(cut-to-size
width
(string-append
(fill-up-string 20 (car p))
" "
(afs-permissions->string (cdr p)))))
(define (make-afs-perms-select-list num-cols num-lines afs-perms)
(make-select-list
(map
(lambda (p)
(make-unmarked-element p #t (layout-afs-perm num-cols p)))
afs-perms)
num-lines))
(define (make-acl-viewer acl buffer)
(let* ((dir (acl-dir acl))
(afs-perms (acl-afs-perms acl))
(header (make-header (result-buffer-num-cols buffer) dir))
(select-list
(make-afs-perms-select-list
(result-buffer-num-cols buffer)
(- (result-buffer-num-lines buffer) (length header))
afs-perms)))
(lambda (message)
(case message
((paint)
(lambda (self win buffer have-focus?)
(let ((hdr-len (length header)))
(for-each (lambda (text y)
(mvwaddstr win y 0 text))
header
(iota hdr-len))
(paint-selection-list-at
select-list 0 hdr-len win buffer have-focus?))))
((key-press)
(lambda (self key control-x-pressed?)
(set! select-list
(select-list-handle-key-press select-list key))
self))
; ((get-selection) get-selection)
; ((get-focus-object) get-focus-object)
(else
(error "acl viewer unknown message" message))))))
(register-plugin!
(make-command-plugin "fs"
(lambda args #f)
(lambda (command args)
(cond
((or (string=? (car args) "la")
(string=? (car args) "listacl"))
(make-acl (cadr args)
(get-acl (cadr args))))
(else
(display "unsupported fs command" (car args)))))))
(register-plugin!
(make-view-plugin make-acl-viewer acl?))