;;;--------------------------------------------------------------------------
;;; The main program.
+(eval-when (:compile-toplevel :load-toplevel :execute)
+ (defopthandler dirpath (var arg) ()
+ "Convert the argument into a pathname with a directory component
+ and no file component, suitable for merging."
+
+ ;; This is really fiddly and annoying. Unix pathnames don't tell you
+ ;; whether the thing named is meant to be a directory or not, and
+ ;; implementations differ as to how they cope with pathnames which do or
+ ;; don't name directories when they're expecting files, or vice versa.
+
+ (let ((path (ignore-errors (pathname arg))))
+ (cond ((null path)
+ ;; The namestring couldn't be parsed, or something else went
+ ;; horribly wrong.
+
+ (option-parse-error "Can't parse `~A' as a path" arg))
+
+ #+unix
+ ((or (pathname-name path) (pathname-type path))
+ ;; If this is Unix, or similar, then stick the filename piece on
+ ;; the end of the directory and hope that was sensible.
+
+ (setf var (make-pathname
+ :name nil :type nil :defaults path
+ :directory (append (or (pathname-directory path)
+ (list :relative))
+ (list (file-namestring path))))))
+
+ (t
+ ;; This actually looks like a plain directory name.
+
+ (setf var path))))))
+
(export 'main)
(defun main ()
+
+ ;; Initialize the argument parser.
(set-command-line-arguments)
- (define-program
- :help "Probably ought to write this."
- :version "0.1.0"
- :usage nil
- :options (options
- (help-options :short-version #\V)
- "Crazy options"
- ))
-
- (unless (option-parse-try
- (do-options ()
- (nil (rest)
- (format t "My arguments are ~S~%" rest))))
- (die-usage))
- (exit))
+ ;; Collect information from the command line options.
+ (let ((output-reasons nil)
+ (output-path (make-pathname :directory '(:relative)))
+ (builtinsp nil)
+ (stdoutp nil)
+ (args nil))
+
+ ;; Option definitions.
+ (define-program
+ :help "Probably ought to write this."
+ :version "0.1.0"
+ :usage "SOURCES..."
+ :options (options
+ (help-options :short-version #\V)
+ "Crazy options"
+ (#\I "include" (:arg "DIR")
+ ("Search DIR for module imports.")
+ (list *module-dirs* 'string))
+ ("builtins"
+ ("Process the builtin `sod-base' module.")
+ (set builtinsp))
+ (#\d "directory" (:arg "DIR")
+ ("Write output files to DIR.")
+ (dirpath output-path))
+ (#\p "stdout"
+ ("Write output files to standard output.")
+ (set stdoutp))
+ (#\t "type" (:arg "OUT-TYPE")
+ ("Produce output of type OUT-TYPE.")
+ (list output-reasons 'keyword))))
+
+ ;; Actually parse the options.
+ (unless (and (option-parse-try
+ (do-options ()
+ (nil (rest)
+ (setf args rest))))
+ (or builtinsp args))
+ (die-usage))
+
+ ;; Prepare the builtins.
+ (make-builtin-module)
+
+ ;; Do the main parsing job.
+ (multiple-value-bind (hunoz nerror nwarn)
+ (count-and-report-errors ()
+ (with-default-error-location ((make-file-location *program-name*))
+
+ (flet ((hack-module (module)
+ ;; Process the MODULE, writing out the generated code.
+
+ ;; Work through each output type in turn.
+ (dolist (reason output-reasons)
+
+ ;; Arrange to be able to recover from errors.
+ (restart-case
+
+ ;; Collect information for constructing the output
+ ;; filenames here. In particular,
+ ;; `output-type-pathname' will sanity-check the
+ ;; output type for us, which is useful even if
+ ;; we're writing to stdout.
+ (let ((outpath (output-type-pathname reason))
+ (modpath (module-name module)))
+
+ (if stdoutp
+
+ ;; If we're writing to stdout then just do
+ ;; that.
+ (output-module module reason
+ *standard-output*)
+
+ ;; Otherwise we have to construct an output
+ ;; filename the hard way.
+ (with-open-file
+ (stream
+ (reduce #'merge-pathnames
+ (list output-path
+ outpath
+ (make-pathname
+ :directory nil
+ :defaults modpath))
+ :from-end t)
+ :direction :output
+ :if-exists :supersede
+ :if-does-not-exist :create)
+ (output-module module reason stream))))
+
+ ;; Error recovery.
+ (continue ()
+ :report (lambda (stream)
+ (format stream
+ "Skip output type `~(~A~)'"
+ reason))
+ nil)))))
+
+ ;; If we're writing the builtin module then now seems like a
+ ;; good time to do that.
+ (when builtinsp
+ (clear-the-decks)
+ (hack-module *builtin-module*))
+
+ ;; Parse and write out the remaining modules.
+ (dolist (arg args)
+ (clear-the-decks)
+ (hack-module (read-module arg))))))
+
+ ;; Report on how well everything worked.
+ (declare (ignore hunoz))
+ (when (or (plusp nerror) (plusp nwarn))
+ (format *error-output* "~A: Finished with~
+ ~[~:; ~:*~D error~:P~[~:; and~]~:*~]~
+ ~[~:; ~:*~D warning~:P~]~%"
+ *program-name* nerror nwarn))
+
+ ;; Exit with a sensible status.
+ (exit (if (plusp nerror) 2 0)))))
;;;----- That's all, folks --------------------------------------------------
~mdw / sod / blobdiff