5a04541fe3
whalesong.rkt now provides two additional commands:
get-runtime: prints the runtime into standard output
get-javascript: compiles the given program and writes to standard output
100 lines
2.6 KiB
Racket
Executable File
100 lines
2.6 KiB
Racket
Executable File
#!/usr/bin/env racket
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#lang racket/base
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(require racket/list
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racket/match
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racket/string
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racket/path
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"make-structs.rkt"
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"js-assembler/package.rkt")
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;; Usage:
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;;
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;; * Build standalone .xhtml application.
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;;
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;; $ whalesong build main-module-name.rkt
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;;
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;;
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;; * Print out the runtime library to standard output.
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;;
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;; $ whalesong get-runtime
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;;
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;;
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;; * Print out the JavaScript for the program.
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;;
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;; $ whalesong get-javascript main-module-name.rkt
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;; TODO: error trapping
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(define commands `((build
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,(lambda (args)
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(do-the-build args)))
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(get-runtime
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,(lambda (args)
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(print-the-runtime)))
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(get-javascript
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,(lambda (args)
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(get-javascript-code (first args))))))
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;; listof string
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(define command-names (map (lambda (x) (symbol->string (car x)))
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commands))
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(define (print-expected-command)
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(printf "Expected one of the following: [~a].\n"
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(string-join command-names ", ")))
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(define (at-toplevel)
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(define args (vector->list (current-command-line-arguments)))
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(cond [(empty? args)
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(print-expected-command)]
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[else
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(cond
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[(assoc (string->symbol (first args))
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commands)
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=>
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(lambda (p)
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((cadr p) (rest args)))]
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[else
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(printf "Unknown command ~s.\n" (first args))
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(print-expected-command)])]))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(define (do-the-build filenames)
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(for ([f filenames])
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(let-values ([(base filename dir?)
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(split-path f)])
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(let ([output-filename
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(build-path
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(regexp-replace #rx"[.](rkt|ss)$" (path->string filename) ".xhtml"))])
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(call-with-output-file* output-filename
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(lambda (op)
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(package-standalone-xhtml
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(make-ModuleSource (build-path f))
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op))
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#:exists 'replace)))))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(define (print-the-runtime)
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(write-runtime (current-output-port)))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(define (get-javascript-code filename)
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(write-standalone-code (make-ModuleSource (build-path filename)) (current-output-port)))
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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(at-toplevel)
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