defs.rkt 2.58 KB
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#lang racket/base
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(require scribble/base)
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(require scribble/decode)
(require racket/class)
(require racket/draw)
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(require racket/system)
(require racket/port)
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(require racket/vector)
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(provide (all-defined-out))

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; Check to see if we are building Apt or CloudLab documentation
(define tb-mode 
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  (if (vector-member "clab" (current-command-line-arguments))
    'clab
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    'apt))

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(define (apt?) (if (equal? tb-mode 'apt) #t #f))
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(define (clab?)  (if (equal? tb-mode 'clab) #t #f))
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(define (apt-vs-clab #:apt [apt-version ""] #:clab [clab-version ""])
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  (if (apt?)
    apt-version
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    clab-version))
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(define (apt-vs-clab* #:apt [apt-version ""] #:clab [clab-version ""])
  (decode-content (list (if (apt?)
                          apt-version
                          clab-version))))

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(define (apt-only stuff)
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  (apt-vs-clab #:apt stuff))
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(define (clab-only stuff)
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  (apt-vs-clab #:clab stuff))
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(define apt-base-url
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  (if (clab?)
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    "https://www.cloudlab.us"
    "https://www.aptlab.net/"))

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(define tb (lambda () (if (clab?) "CloudLab" "Apt")))
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; We want the 'version' to be the date of the most recent commit
(define apt-version
  (with-output-to-string
    (lambda () (system "git show -s --date=short --format='%cd (%h)' HEAD"))))
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; Arbitrary width that works reasonably well with the manual class's main
; column width
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(define screenshot-width 650)

(define apturl
  (case-lambda
    [() apt-base-url]
    [(page) (string-append apt-base-url page)]))
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(define (TODO . what)
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  (bold "TODO: " (decode-content what)))
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(define nodetype
  (lambda (typename howmany . properties)
          (tabular #:style 'boxed #:sep (hspace 3)
                   (cons
                     (list (bold typename)
                           (string-append (number->string howmany) " nodes"))
                     properties))))
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(define (screenshot path)
  (let* ([fullpath (string-append "screenshots/" path)]
         [b (make-object bitmap% fullpath)]
         [width (send b get-width)]
         [scale-factor (/ screenshot-width width)])
    (list (image #:scale scale-factor fullpath fullpath) (linebreak))))

(define (instructionstep step #:screenshot [screenshot-path #f] . body)
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  (item (bold (decode-content (list step)))
        (linebreak)
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        (if screenshot-path
          (screenshot  screenshot-path)
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          (void))
        (decode-content body)))
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(define (under-construction)
  (bold "This section is under construction"))
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(define (future-work tag)
  (margin-note "There are planned features relating to this section: see \""
               (secref tag)
               "\" for more details."))
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(define (ssh)
  (tt "ssh"))