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2 Enmetoj

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@ -41,32 +41,48 @@
;; NIL → NIL
(defun main ()
"Actual invocation of the program. This is what you should set as :toplevel."
(error-print
99 ""
(multiple-value-bind (opts free) (opts:get-opts)
(when-opt opts :help (help))
(let* ((input-stream (pathname (car free))))
(when (not input-stream)
(format *error-output* "No file provided.~%")
(help 2))
(let* ((input-file (car free))
(url-base (or (getf opts :url-base) (getf opts :download-dir) "mirror/"))
(download-dir (or (getf opts :download-dir) url-base)))
(when (not input-file)
(error-print 1 "No HTML file provided. Use --help for more information."))
(format
't
(mirror-img:mirror-img
input-stream
#p"mirror/")))))
(pathname input-file)
download-dir
:url-dir url-base))))))
(opts:define-opts
(:name :help
:description "print this help text."
:short #\h :long "help")
(:name :base
(:name :url-base
:description "path to mirror directory used in URLs"
:short #\b :long "base")
(:name :download-dir
:description "directory for all mirrored files"
:short #\b :long "base"
:arg-parser (lambda (dir)
(car (directory dir)))))
:short #\d :long "downloads"
:arg-parser
(lambda (dir)
(handler-case
(ensure-directories-exist dir)
(error (c)
(error-print 11 "Could not access or create directory." c))))))
;; number stream → nil
(defun help (&optional (exit-code 0) (stream *standard-output*))
"Prints help message and dies."
(unix-opts:describe :prefix "usage: mirror-img [-h] [-b DIR] HTML_FILE"
(unix-opts:describe :prefix "usage: mirror-img [-h] [-d DIR] [-b BASE] HTML_FILE"
:stream stream)
(unix-opts:exit exit-code))
;; number string condition → nil
(defun error-print (exit-code &optional message condition)
"Print an error-message and exit."
(format *error-output* "~@[~A~%~]~@[~A~%~]" message condition)
(unix-opts:exit exit-code))