Add --base and --downloads parameters to cli

src/unix.lisp

@@ -43,30 +43,36 @@
   "Actual invocation of the program. This is what you should set as :toplevel."
   (multiple-value-bind (opts free) (opts:get-opts)
     (when-opt opts :help (help))
-    (let* ((input-stream (pathname (car free))))
-      (when (not input-stream)
+    (let* ((input-file   (pathname (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)
         (format *error-output* "No file provided.~%")
         (help 2))
 
       (format
        't
        (mirror-img:mirror-img
-        input-stream
-        #p"mirror/")))))
+        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"
+   :short #\d :long "downloads"
    :arg-parser (lambda (dir)
                  (car (directory dir)))))
 
 ;; 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))