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#!/bin/sh
#
# install - install a program, script, or datafile
#
# This originates from X11R5 (mit/util/scripts/install.sh), which was
# later released in X11R6 (xc/config/util/install.sh) with the
# following copyright and license.
#
# Copyright (C) 1994 X Consortium
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to
# deal in the Software without restriction, including without limitation the
# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
# sell copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#
# Except as contained in this notice, the name of the X Consortium shall not
# be used in advertising or otherwise to promote the sale, use or other deal-
# ings in this Software without prior written authorization from the X Consor-
# tium.
#
#
# FSF changes to this file are in the public domain.
#
# 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="$mvprog"
chmodcmd="$chmodprog 0755"
chowncmd=""
chgrpcmd=""
stripcmd=""
rmcmd="$rmprog -f"
mvcmd="$mvprog"
src=""
dst=""
dir_arg=""

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

-d) dir_arg=true
shift
continue;;

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

-o) 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;;

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

if [ x"$src" = x ]
then
echo "$0: no input file specified" >&2
exit 1
else
:
fi

if [ x"$dir_arg" != x ]; then
dst=$src
src=""

if [ -d "$dst" ]; then
instcmd=:
chmodcmd=""
else
instcmd=$mkdirprog
fi
else

# 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 '*'.

if [ -f "$src" ] || [ -d "$src" ]
then
:
else
echo "$0: $src does not exist" >&2
exit 1
fi

if [ x"$dst" = x ]
then
echo "$0: no destination specified" >&2
exit 1
else
:
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
:
fi
fi

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

# Make sure that the destination directory exists.
# this part is taken from Noah Friedman's mkinstalldirs script

# Skip lots of stat calls in the usual case.
if [ ! -d "$dstdir" ]; then
defaultIFS='
'
IFS="${IFS-$defaultIFS}"

oIFS=$IFS
# Some sh's can't handle IFS=/ for some reason.
IFS='%'
set - `echo "$dstdir" | sed -e 's@/@%@g' -e 's@^%@/@'`
IFS=$oIFS

pathcomp=''

while [ $# -ne 0 ] ; do
pathcomp=$pathcomp$1
shift

if [ ! -d "$pathcomp" ] ;
        then
$mkdirprog "$pathcomp"
else
:
fi

pathcomp=$pathcomp/
done
fi

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

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

# Make a couple of temp file names in the proper directory.

dsttmp=$dstdir/_inst.$$_
rmtmp=$dstdir/_rm.$$_

# Trap to clean up temp files at exit.

trap 'status=$?; rm -f "$dsttmp" "$rmtmp" && exit $status' 0
trap '(exit $?); exit' 1 2 13 15

# Move or copy the file name to the temp name

$doit $instcmd "$src" "$dsttmp" &&

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

# Now remove or move aside any old file at destination location. We try this
# two ways since rm can't unlink itself on some systems and the destination
# file might be busy for other reasons. In this case, the final cleanup
# might fail but the new file should still install successfully.

{
if [ -f "$dstdir/$dstfile" ]
then
$doit $rmcmd -f "$dstdir/$dstfile" 2>/dev/null ||
$doit $mvcmd -f "$dstdir/$dstfile" "$rmtmp" 2>/dev/null ||
{
echo "$0: cannot unlink or rename $dstdir/$dstfile" >&2
(exit 1); exit
}
else
:
fi
} &&

# Now rename the file to the real destination.

$doit $mvcmd "$dsttmp" "$dstdir/$dstfile"

fi &&

# The final little trick to "correctly" pass the exit status to the exit trap.

{
(exit 0); exit
}
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