;;;; -*- Mode: Lisp; Syntax: ANSI-Common-Lisp; Base: 10 -*-
;;;; *************************************************************************
;;;; FILE IDENTIFICATION
;;;;
;;;; Name:          os.lisp
;;;; Purpose:       Operating System utilities
;;;; Programmer:    Kevin M. Rosenberg
;;;; Date Started:  Jul 2003
;;;;
;;;; $Id$
;;;;
;;;; *************************************************************************

(in-package #:kmrcl)

(defun run-shell-command (control-string &rest args)
  "Interpolate ARGS into CONTROL-STRING as if by FORMAT, and
synchronously execute the result using a Bourne-compatible shell, 
returns (VALUES string-output exit-code)"
  (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 nil))
    
    #+(or cmu scl)
    (ext:process-exit-code
     (ext:run-program  
      "/bin/sh"
      (list  "-c" command)
      :input nil :output nil))
    
    #+allegro
    (multiple-value-bind (output dummy exit)
	(excl:run-shell-command command :input nil :output :stream
				:wait nil)
      (declare (ignore dummy))
      (values output exit))
    
    #+lispworks
    (system:call-system-showing-output
     command
     :shell-type "/bin/sh"
     :output-stream output)
    
    #+clisp		;XXX not exactly *verbose-out*, 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 nil
				 :wait t)))
	   
    #-(or openmcl clisp lispworks allegro scl cmu sbcl)
    (error "RUN-SHELL-PROGRAM not implemented for this Lisp")

    ))