#!/bin/sh
#
# install - install a program, script, or datafile
# This comes from X11R5 (mit/util/scripts/install.sh).
#
# Copyright 1991 by the Massachusetts Institute of Technology
#
# Permission to use, copy, modify, distribute, and sell this software and its
# documentation for any purpose is hereby granted without fee, provided that
# the above copyright notice appear in all copies and that both that
# copyright notice and this permission notice appear in supporting
# documentation, and that the name of M.I.T. not be used in advertising or
# publicity pertaining to distribution of the software without specific,
# written prior permission.  M.I.T. makes no representations about the
# suitability of this software for any purpose.  It is provided "as is"
# without express or implied warranty.
#
# Calling this script install-sh is preferred over install.sh, to prevent
# `make' implicit rules from creating a file called install from it
# when there is no Makefile.
#
# This script is compatible with the BSD install script, but was written
# from scratch.  It can only install one file at a time, a restriction
# shared with many OS's install programs.


# set DOITPROG to echo to test this script

# Don't use :- since 4.3BSD and earlier shells don't like it.
doit="${DOITPROG-}"


# put in absolute paths if you don't have them in your path; or use env. vars.

mvprog="${MVPROG-mv}"
cpprog="${CPPROG-cp}"
chmodprog="${CHMODPROG-chmod}"
chownprog="${CHOWNPROG-chown}"
chgrpprog="${CHGRPPROG-chgrp}"
stripprog="${STRIPPROG-strip}"
rmprog="${RMPROG-rm}"
mkdirprog="${MKDIRPROG-mkdir}"

transformbasename=""
transform_arg=""
instcmd="$cpprog"
chmodcmd="$chmodprog 0755"
chowncmd=""
chgrpcmd=""
stripcmd=""
rmcmd="$rmprog -f"
mvcmd="$mvprog"
src=""
dst=""
dir_arg=""
tgtdir=""
srcs=""
src_arg=""
save_arg=""
remove_arg=""

while [ x"$1" != x ]; do
    case $1 in
#	-c) instcmd="$cpprog"
#	    shift
#	    continue;;
#
	-dir) dir_arg=true
	    shift
	    continue;;

	-m) chmodcmd="$chmodprog $2"
	    shift
	    shift
	    continue;;

	-u) chowncmd="$chownprog $2"
	    shift
	    shift
	    continue;;

	-g) chgrpcmd="$chgrpprog $2"
	    shift
	    shift
	    continue;;

	-s) stripcmd="$stripprog"
	    shift
	    continue;;

#	-t=*) transformarg=`echo $1 | sed 's/-t=//'`
#	    shift
#	    continue;;
#
#	-b=*) transformbasename=`echo $1 | sed 's/-b=//'`
#	    shift
#	    continue;;

	-root) ROOT=$2
	    [ -z "$ROOT" ] && echo "install: missing -root argument" && exit 1
	    shift
	    shift
	    continue;;

	-f) tgtdir=$2
	    shift
	    shift
	    if [ -d $tgtdir ] ; then
	        echo "install:  $tgtdir does not exist"
		exit 1;
	    fi
	    continue;;

	-F) tgtdir=$2
	    shift
	    shift
	    mkdir -p $ROOT/$tgtdir || exit 1
	    continue;;

	-src) src_arg=$2
	    [ -z "$2" ] && echo "install: missing -src argument" && exit 1
	    shift
	    shift
	    continue;;

	-O) remove_arg=true
	    shift
	    continue;;

#	-o) save_arg=true
#	    shift
#	    continue;;

	-*) echo "install:  unhandled command $1";
	    exit 1;;
	
#	*)  if [ x"$src" = x ]
#	    then
#		src=$1
#	    else
#		# this colon is to work around a 386BSD /bin/sh bug
#		:
#		dst=$1
#	    fi
#	    shift
#	    continue;;
	*)  srcs="$srcs $1"
	    shift;
	    continue;;
    esac
done

if [ x"$srcs" = x ]; then
	echo "install:	no input file specified"
	exit 1
else
	true
fi


for src in $srcs; do
# Waiting for this to be detected by the "$instcmd $src $dsttmp" command
# might cause directories to be created, which would be especially bad 
# if $src (and thus $dsttmp) contains '*'.
	
	dst=$ROOT/$tgtdir
	if [ x"$dst" = x ]; then
		echo "install:	no destination specified"
		exit 1
	else
		true
	fi


# If destination is a directory, append the input filename; if your system
# does not like double slashes in filenames, you may need to add some logic

	if [ -d $dst ]; then
		dst="$dst"/`basename $src`
	else
		true
	fi

	if [ -n "$src_arg" ]; then
		src=$src_arg
	fi
	if [ -f $src -o -d $src ]; then
		true
	else
		echo "install:  $src does not exist"
		exit 1
	fi

## this sed command emulates the dirname command
	dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`

	if [ x"$dir_arg" != x ]
	then
		$doit $instcmd $dst &&

		if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else true ; fi &&
		if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else true ; fi &&
		if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else true ; fi &&
		if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else true ; fi
	else

# If we're going to rename the final executable, determine the name now.

		if [ x"$transformarg" = x ] 
		then
			dstfile=`basename $dst`
		else
			dstfile=`basename $dst $transformbasename | 
				sed $transformarg`$transformbasename
		fi

# don't allow the sed command to completely eliminate the filename

		if [ x"$dstfile" = x ] 
		then
			dstfile=`basename $dst`
		else
			true
		fi

# Make a temp file name in the proper directory.

		dsttmp=$dstdir/#inst.$$#

# Move or copy the file name to the temp name

		$doit $instcmd $src $dsttmp &&

		trap "rm -f ${dsttmp}" 0 &&

# and set any options; do chmod last to preserve setuid bits

# If any of these fail, we abort the whole thing.  If we want to
# ignore errors from any of these, just make sure not to ignore
# errors from the above "$doit $instcmd $src $dsttmp" command.

		if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else true;fi &&
		if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else true;fi &&
		if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else true;fi &&
		if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else true;fi &&

# Now rename the file to the real destination.

		if [ -n $remove_arg ]; then
		    $doit $rmcmd -f $dstdir/$dstfile;
		fi &&
		$doit $mvcmd $dsttmp $dstdir/$dstfile 

	fi || exit 1
done
exit 0