src/expat/conftools/PrintPath

#!/bin/sh
# Look for program[s] somewhere in $PATH.
#
# Options:
#  -s
#    Do not print out full pathname. (silent)
#  -pPATHNAME
#    Look in PATHNAME instead of $PATH
#
# Usage:
#  PrintPath [-s] [-pPATHNAME] program [program ...]
#
# Initially written by Jim Jagielski for the Apache configuration mechanism
#  (with kudos to Kernighan/Pike)
#
# This script falls under the Apache License.
# See http://www.apache.org/licenses/LICENSE

##
# Some "constants"
##
pathname=$PATH
echo="yes"

##
# Find out what OS we are running for later on
##
os=`(uname) 2>/dev/null`

##
# Parse command line
##
for args in $*
do
    case $args in
	-s  ) echo="no" ;;
	-p* ) pathname="`echo $args | sed 's/^..//'`" ;;
	*   ) programs="$programs $args" ;;
    esac
done

##
# Now we make the adjustments required for OS/2 and everyone
# else :)
#
# First of all, all OS/2 programs have the '.exe' extension.
# Next, we adjust PATH (or what was given to us as PATH) to
# be whitespace seperated directories.
# Finally, we try to determine the best flag to use for
# test/[] to look for an executable file. OS/2 just has '-r'
# but with other OSs, we do some funny stuff to check to see
# if test/[] knows about -x, which is the prefered flag.
##

if [ "x$os" = "xOS/2" ]
then
    ext=".exe"
    pathname=`echo -E $pathname |
     sed 's/^;/.;/
	  s/;;/;.;/g
	  s/;$/;./
	  s/;/ /g
	  s/\\\\/\\//g' `
    test_exec_flag="-r"
else
    ext=""	# No default extensions
    pathname=`echo $pathname |
     sed 's/^:/.:/
	  s/::/:.:/g
	  s/:$/:./
	  s/:/ /g' `
    # Here is how we test to see if test/[] can handle -x
    testfile="pp.t.$$"

    cat > $testfile <<ENDTEST
#!/bin/sh
if [ -x / ] || [ -x /bin ] || [ -x /bin/ls ]; then
    exit 0
fi
exit 1
ENDTEST

    if `/bin/sh $testfile 2>/dev/null`; then
	test_exec_flag="-x"
    else
	test_exec_flag="-r"
    fi
    rm -f $testfile
fi

for program in $programs
do
    for path in $pathname
    do
	if [ $test_exec_flag $path/${program}${ext} ] && \
	   [ ! -d $path/${program}${ext} ]; then
	    if [ "x$echo" = "xyes" ]; then
		echo $path/${program}${ext}
	    fi
	    exit 0
	fi

# Next try without extension (if one was used above)
	if [ "x$ext" != "x" ]; then
            if [ $test_exec_flag $path/${program} ] && \
               [ ! -d $path/${program} ]; then
                if [ "x$echo" = "xyes" ]; then
                    echo $path/${program}
                fi
                exit 0
            fi
        fi
    done
done
exit 1
Commit	Line	Data
	1	#!/bin/sh
	2	# Look for program[s] somewhere in $PATH.
	3	#
	4	# Options:
	5	# -s
	6	# Do not print out full pathname. (silent)
	7	# -pPATHNAME
	8	# Look in PATHNAME instead of $PATH
	9	#
	10	# Usage:
	11	# PrintPath [-s] [-pPATHNAME] program [program ...]
	12	#
	13	# Initially written by Jim Jagielski for the Apache configuration mechanism
	14	# (with kudos to Kernighan/Pike)
	15	#
	16	# This script falls under the Apache License.
	17	# See http://www.apache.org/licenses/LICENSE
	18
	19	##
	20	# Some "constants"
	21	##
	22	pathname=$PATH
	23	echo="yes"
	24
	25	##
	26	# Find out what OS we are running for later on
	27	##
	28	os=`(uname) 2>/dev/null`
	29
	30	##
	31	# Parse command line
	32	##
	33	for args in $*
	34	do
	35	case $args in
	36	-s ) echo="no" ;;
	37	-p* ) pathname="`echo $args \| sed 's/^..//'`" ;;
	38	* ) programs="$programs $args" ;;
	39	esac
	40	done
	41
	42	##
	43	# Now we make the adjustments required for OS/2 and everyone
	44	# else :)
	45	#
	46	# First of all, all OS/2 programs have the '.exe' extension.
	47	# Next, we adjust PATH (or what was given to us as PATH) to
	48	# be whitespace seperated directories.
	49	# Finally, we try to determine the best flag to use for
	50	# test/[] to look for an executable file. OS/2 just has '-r'
	51	# but with other OSs, we do some funny stuff to check to see
	52	# if test/[] knows about -x, which is the prefered flag.
	53	##
	54
	55	if [ "x$os" = "xOS/2" ]
	56	then
	57	ext=".exe"
	58	pathname=`echo -E $pathname \|
	59	sed 's/^;/.;/
	60	s/;;/;.;/g
	61	s/;$/;./
	62	s/;/ /g
	63	s/\\\\/\\//g' `
	64	test_exec_flag="-r"
	65	else
	66	ext="" # No default extensions
	67	pathname=`echo $pathname \|
	68	sed 's/^:/.:/
	69	s/::/:.:/g
	70	s/:$/:./
	71	s/:/ /g' `
	72	# Here is how we test to see if test/[] can handle -x
	73	testfile="pp.t.$$"
	74
	75	cat > $testfile <<ENDTEST
	76	#!/bin/sh
	77	if [ -x / ] \|\| [ -x /bin ] \|\| [ -x /bin/ls ]; then
	78	exit 0
	79	fi
	80	exit 1
	81	ENDTEST
	82
	83	if `/bin/sh $testfile 2>/dev/null`; then
	84	test_exec_flag="-x"
	85	else
	86	test_exec_flag="-r"
	87	fi
	88	rm -f $testfile
	89	fi
	90
	91	for program in $programs
	92	do
	93	for path in $pathname
	94	do
	95	if [ $test_exec_flag $path/${program}${ext} ] && \
	96	[ ! -d $path/${program}${ext} ]; then
	97	if [ "x$echo" = "xyes" ]; then
	98	echo $path/${program}${ext}
	99	fi
	100	exit 0
	101	fi
	102
	103	# Next try without extension (if one was used above)
	104	if [ "x$ext" != "x" ]; then
	105	if [ $test_exec_flag $path/${program} ] && \
	106	[ ! -d $path/${program} ]; then
	107	if [ "x$echo" = "xyes" ]; then
	108	echo $path/${program}
	109	fi
	110	exit 0
	111	fi
	112	fi
	113	done
	114	done
	115	exit 1
	116