File: install.sh

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#!/bin/sh
##
##  install.sh -- install a program, script or datafile
##
##  Based on `install-sh' from the X Consortium's X11R5 distribution
##  as of 89/12/18 which is freely available.
##  Cleaned up for Apache's Autoconf-style Interface (APACI)
##  by Ralf S. Engelschall <rse@apache.org>
##
#
# This script falls under the Apache License.
# See http://www.apache.org/docs/LICENSE


#
#   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}"

#
#   parse argument line
#
instcmd="$mvprog"
chmodcmd=""
chowncmd=""
chgrpcmd=""
stripcmd=""
rmcmd="$rmprog -f"
mvcmd="$mvprog"
ext=""
src=""
dst=""
while [ "x$1" != "x" ]; do
    case $1 in
        -c) instcmd="$cpprog"
            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
            ;;
        -S) stripcmd="$stripprog $2"
            shift; shift; continue
            ;;
        -e) ext="$2"
            shift; shift; continue
            ;;
        *)  if [ "x$src" = "x" ]; then
                src=$1
            else
                dst=$1
            fi
            shift; continue
            ;;
    esac
done
if [ "x$src" = "x" ]; then
     echo "install.sh: no input file specified"
     exit 1
fi
if [ "x$dst" = "x" ]; then
     echo "install.sh: no destination specified"
     exit 1
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`"
fi

#  Add a possible extension (such as ".exe") to src and dst
src="$src$ext"
dst="$dst$ext"

#  Make a temp file name in the proper directory.
dstdir=`dirname $dst`
dsttmp=$dstdir/#inst.$$#

#  Move or copy the file name to the temp name
$instcmd $src $dsttmp

#  And set any options; do chmod last to preserve setuid bits
if [ "x$chowncmd" != "x" ]; then $chowncmd $dsttmp; fi
if [ "x$chgrpcmd" != "x" ]; then $chgrpcmd $dsttmp; fi
if [ "x$stripcmd" != "x" ]; then $stripcmd $dsttmp; fi
if [ "x$chmodcmd" != "x" ]; then $chmodcmd $dsttmp; fi

#  Now rename the file to the real destination.
$rmcmd $dst
$mvcmd $dsttmp $dst

exit 0