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42 lines
1.6 KiB
Racket
42 lines
1.6 KiB
Racket
#lang racket/base
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(require (for-syntax racket/base pollen/command))
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;; Handle commands from raco
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(define-for-syntax args (current-command-line-arguments))
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(define-for-syntax arg-command-name (with-handlers ([exn:fail? (λ(exn) #f)]) (vector-ref args 0)))
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(define-for-syntax first-arg-or-current-dir
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(with-handlers ([exn:fail? (λ(exn) (current-directory))])
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;; incoming path argument is handled as described in
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;; docs for current-directory
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(path->complete-path (path->directory-path (simplify-path (cleanse-path (string->path (vector-ref args 1))))))))
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(define-for-syntax rest-args
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(with-handlers ([exn:fail? (λ(exn) #f)])
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(cddr (vector->list (current-command-line-arguments)))))
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(define-for-syntax port-arg
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(with-handlers ([exn:fail? (λ(exn) #f)])
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(string->number (vector-ref args 2))))
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(define-for-syntax (command-error error-string)
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`(displayln (string-append "Error: ", error-string)))
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;; we work in syntax layer because 'start' has to require pollen/server,
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;; which is slow, and needs to happen at the top level.
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(define-syntax (select-syntax-for-command stx)
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(datum->syntax stx
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(case arg-command-name
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[("test" "xyzzy") (handle-test)]
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[(#f "help") (handle-help)]
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[("start") (handle-start first-arg-or-current-dir port-arg)]
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[("render") (handle-render first-arg-or-current-dir rest-args)]
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[("clone") (handle-clone first-arg-or-current-dir rest-args)]
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[else (handle-else arg-command-name)])))
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(select-syntax-for-command)
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