commit 850cb6acbae54f32d6d73eb6e74019858a283523
Author: Simon Watson <spesk@pm.me>
Date:   Tue Dec 21 14:08:06 2021 -0500

    Save and die script

diff --git a/save.lisp b/save.lisp
new file mode 100644
index 0000000..3c89f01
--- /dev/null
+++ b/save.lisp
@@ -0,0 +1,65 @@
+;;; Stub that takes lisp source file as an argument and generates an executable
+;;; for it. Assumes entry point is main.
+
+(ql:quickload "unix-opts")
+
+(defun file-test (filename)
+  (if (probe-file filename) filename))
+
+(defun get-fn-str (filename)
+  (if (stringp filename) filename))
+
+(opts:define-opts
+  (:name :help
+   :description "Print this text"
+   :short #\h
+   :long "help")
+  (:name :output-file
+   :description "File to write executable to"
+   :short #\f
+   :long "output-file"
+   :arg-parser #'get-fn-str)
+  (:name :entry-point
+   :description "Entry point for saved binary"
+   :short #\e
+   :long "entry-point"
+   :arg-parser #'read-from-string)
+  (:name :input-file
+   :description "File to load and save"
+   :short #\l
+   :long "load"
+   :arg-parser #'file-test))
+
+;; See: https://github.com/libre-man/unix-opts/blob/master/example/example.lisp
+(defmacro when-option ((options opt) &body body)
+  `(let ((it (getf ,options ,opt)))
+     (when it
+       ,@body)))
+
+;;(defun saver (filename entry-point)
+;;  (sb-ext:save-lisp-and-die filename :toplevel (function entry-point) :executable t :compression t))
+(defmacro saver (filename entry-point)
+  `(sb-ext:save-lisp-and-die ,filename :toplevel ,entry-point :executable t :compression t))
+
+(defun display-help ()
+  (progn
+    (opts:describe
+     :prefix "save.bin - Load and then save lisp files. Script over sb-ext:save-lisp-and-die"
+     :usage-of "save.bin"
+     :args "[FREE-ARGS]")
+    (quit)))
+
+(defun builder ()
+  (if (uiop:command-line-arguments) (display-help))
+  ;;; Get and process args
+  (let ((matches (opts:get-opts)))
+    (progn
+      (format t "~a ~%" matches)
+      (when-option (matches :help)
+		   (display-help))
+      (if (second matches) (display-help))
+      ;; Load program
+      (load (getf matches :input-file))
+      (print "Loaded file")
+      ;; Save program
+      (saver (getf matches :output-file) (getf matches :entry-point)))))