#! /bin/sh
# file: checkfile		G. Moody	11 December 2001
#				Last revised:	 10 April 2008
#
# This script compares FILE with the identically-named file in the 'expected'
# directory.  It returns 0 if the files match, and 1 if there is a difference.
# If the -v option is used, 'checkfile' prints the differences if any were
# found; otherwise it prints a message indicating that the files match.

case `uname` in
  HP-UX*)   DIFF=diff ;;
  Solaris*) DIFF=diff ;;
  SunOS*)   DIFF=diff ;;
  *)        DIFF="diff --strip-trailing-cr" ;;
esac

case $# in
 1) ( $DIFF $1 expected/$1 >/dev/null 2>&1 ) && exit 0
    echo " Files $1 and expected/$1 differ: test failed"
    exit 1 ;;
 2) if [ "$1" = "-v" ]
    then
        if ( $DIFF $2 expected/$2 >/dev/null 2>&1 )
	then
	    echo " Files $2 and expected/$2 match: test succeeded"
	    exit 0
	else
	    echo " Files $2 and expected/$2 differ: test failed"
	    $DIFF $2 expected/$2
	    exit 1
	fi
    else
	echo "usage: $0 [-v] FILE"
	exit 1
    fi ;;
 *) echo "usage: $0 [-v] FILE"
    exit 1 ;;
esac