;;;; clscopes/util

;;;; Common utilities for the scopes project.

(defpackage :scopes/util
  (:use :common-lisp)
  (:export #:relative-path #:runtime-path #:system-path))

(in-package :scopes/util)

(defun relative-path (name &rest dirs)
  (let* ((parts (str:rsplit "." name :limit 2)) 
         (n (pop parts))
         (type (car parts)))
    (when (string= n "")
      (setf n name)
      (setf type nil))
    (make-pathname :name n :type type :directory (cons :relative dirs))))

(defun runtime-path (name &rest dirs)
  (merge-pathnames (apply #'relative-path name dirs)))

(defun system-path (sys name &rest dirs)
  (asdf:system-relative-pathname sys (apply #'relative-path name dirs)))