jadedctrl/ mirror-img
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Add error-reporting to UNIX cli client

This commit is contained in:
Jaidyn Ann 2024-05-31 15:48:43 -05:00
parent 1097b4d0b3
commit 7604512684
1 changed files with 27 additions and 17 deletions
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44
src/unix.lisp
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@ -41,21 +41,21 @@
;; NIL → NIL ;; NIL → NIL
(defun main () (defun main ()
"Actual invocation of the program. This is what you should set as :toplevel." "Actual invocation of the program. This is what you should set as :toplevel."
(multiple-value-bind (opts free) (opts:get-opts) (error-print
(when-opt opts :help (help)) 99 ""
(let* ((input-file (pathname (car free))) (multiple-value-bind (opts free) (opts:get-opts)
(url-base (or (getf opts :url-base) (getf opts :download-dir) "mirror/")) (when-opt opts :help (help))
(download-dir (or (getf opts :download-dir) url-base))) (let* ((input-file (car free))
(when (not input-file) (url-base (or (getf opts :url-base) (getf opts :download-dir) "mirror/"))
(format *error-output* "No file provided.~%") (download-dir (or (getf opts :download-dir) url-base)))
(help 2)) (when (not input-file)
(error-print 1 "No HTML file provided. Use --help for more information."))
(format (format
't 't
(mirror-img:mirror-img (mirror-img:mirror-img
input-file (pathname input-file)
download-dir download-dir
:url-dir url-base))))) :url-dir url-base))))))
(opts:define-opts (opts:define-opts
(:name :help (:name :help
@ -67,8 +67,12 @@
(:name :download-dir (:name :download-dir
:description "directory for all mirrored files" :description "directory for all mirrored files"
:short #\d :long "downloads" :short #\d :long "downloads"
:arg-parser (lambda (dir) :arg-parser
(car (directory dir))))) (lambda (dir)
(handler-case
(ensure-directories-exist dir)
(error (c)
(error-print 11 "Could not access or create directory." c))))))
;; number stream → nil ;; number stream → nil
(defun help (&optional (exit-code 0) (stream *standard-output*)) (defun help (&optional (exit-code 0) (stream *standard-output*))
@ -76,3 +80,9 @@
(unix-opts:describe :prefix "usage: mirror-img [-h] [-d DIR] [-b BASE] HTML_FILE" (unix-opts:describe :prefix "usage: mirror-img [-h] [-d DIR] [-b BASE] HTML_FILE"
:stream stream) :stream stream)
(unix-opts:exit exit-code)) (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))