;;;; -*- Mode: Lisp; Syntax: ANSI-Common-Lisp; Base: 10; Package: UFFI -*-
;;;; *************************************************************************
;;;; FILE IDENTIFICATION
;;;;
;;;; Name:          os.lisp
;;;; Purpose:       Operating system interface for UFFI
;;;; Programmer:    Kevin M. Rosenberg
;;;; Date Started:  Sep 2002 
;;;;
;;;; $Id$
;;;;
;;;; This file, part of UFFI, is Copyright (c) 2002 by Kevin M. Rosenberg.
;;;; Much of this code was taken from other open source project and copyright
;;;; for that code is noted below where appropriate.
;;;;
;;;; UFFI users are granted the rights to distribute and use this software
;;;; as governed by the terms of the Lisp Lesser GNU Public License
;;;; (http://opensource.franz.com/preamble.html), also known as the LLGPL.
;;;; *************************************************************************

(in-package #:uffi)

;; modified from function ASDF -- Copyright Dan Barlow and Contributors

(defun run-shell-command (control-string  &rest args &key output)
  "Interpolate ARGS into CONTROL-STRING as if by FORMAT, and
synchronously execute the result using a Bourne-compatible shell, with
output to *trace-output*.  Returns the shell's exit code."
  (unless output
    (setq output *trace-output*))

  (let ((command (apply #'format nil control-string args)))
    #+sbcl
    (sb-impl::process-exit-code
     (sb-ext:run-program  
      "/bin/sh"
      (list "-c" command)
      :input nil :output output))
    
    #+(or cmu scl)
    (ext:process-exit-code
     (ext:run-program  
      "/bin/sh"
      (list "-c" command)
      :input nil :output output))

    #+allegro
    (excl:run-shell-command command :input nil :output output)
    
    #+lispworks
    (system:call-system-showing-output
     command
     :shell-type "/bin/sh"
     :output-stream output)
    
    #+clisp				;XXX not exactly *trace-output*, I know
    (ext:run-shell-command  command :output :terminal :wait t)

    #+openmcl
    (nth-value 1
	       (ccl:external-process-status
		(ccl:run-program "/bin/sh" (list "-c" command)
				 :input nil :output output
				 :wait t)))

    #-(or openmcl clisp lispworks allegro scl cmu sbcl)
    (error "RUN-SHELL-PROGRAM not implemented for this Lisp")
    ))