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jhr |
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#!/bin/sh
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#
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# install - install a program, script, or datafile
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# This comes from X11R5 (mit/util/scripts/install.sh).
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#
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# Copyright 1991 by the Massachusetts Institute of Technology
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#
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# Permission to use, copy, modify, distribute, and sell this software and its
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# documentation for any purpose is hereby granted without fee, provided that
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# the above copyright notice appear in all copies and that both that
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# copyright notice and this permission notice appear in supporting
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# documentation, and that the name of M.I.T. not be used in advertising or
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# publicity pertaining to distribution of the software without specific,
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# written prior permission. M.I.T. makes no representations about the
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# suitability of this software for any purpose. It is provided "as is"
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# without express or implied warranty.
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#
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# Calling this script install-sh is preferred over install.sh, to prevent
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# `make' implicit rules from creating a file called install from it
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# when there is no Makefile.
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#
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# This script is compatible with the BSD install script, but was written
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# from scratch. It can only install one file at a time, a restriction
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# shared with many OS's install programs.
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# set DOITPROG to echo to test this script
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# Don't use :- since 4.3BSD and earlier shells don't like it.
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doit="${DOITPROG-}"
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# put in absolute paths if you don't have them in your path; or use env. vars.
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mvprog="${MVPROG-mv}"
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cpprog="${CPPROG-cp}"
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chmodprog="${CHMODPROG-chmod}"
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chownprog="${CHOWNPROG-chown}"
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chgrpprog="${CHGRPPROG-chgrp}"
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stripprog="${STRIPPROG-strip}"
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rmprog="${RMPROG-rm}"
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mkdirprog="${MKDIRPROG-mkdir}"
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transformbasename=""
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transform_arg=""
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instcmd="$mvprog"
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chmodcmd="$chmodprog 0755"
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chowncmd=""
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chgrpcmd=""
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stripcmd=""
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rmcmd="$rmprog -f"
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mvcmd="$mvprog"
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src=""
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dst=""
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dir_arg=""
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while [ x"$1" != x ]; do
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case $1 in
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-c) instcmd=$cpprog
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shift
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continue;;
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-d) dir_arg=true
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shift
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continue;;
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-m) chmodcmd="$chmodprog $2"
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shift
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shift
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continue;;
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-o) chowncmd="$chownprog $2"
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shift
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shift
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continue;;
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-g) chgrpcmd="$chgrpprog $2"
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shift
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shift
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continue;;
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-s) stripcmd=$stripprog
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shift
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continue;;
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-t=*) transformarg=`echo $1 | sed 's/-t=//'`
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shift
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continue;;
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-b=*) transformbasename=`echo $1 | sed 's/-b=//'`
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shift
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continue;;
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*) if [ x"$src" = x ]
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then
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src=$1
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else
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# this colon is to work around a 386BSD /bin/sh bug
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:
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dst=$1
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fi
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shift
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continue;;
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esac
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done
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if [ x"$src" = x ]
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then
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echo "$0: no input file specified" >&2
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exit 1
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else
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:
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fi
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if [ x"$dir_arg" != x ]; then
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dst=$src
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src=""
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if [ -d "$dst" ]; then
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instcmd=:
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chmodcmd=""
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else
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instcmd=$mkdirprog
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fi
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else
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# Waiting for this to be detected by the "$instcmd $src $dsttmp" command
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# might cause directories to be created, which would be especially bad
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# if $src (and thus $dsttmp) contains '*'.
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if [ -f "$src" ] || [ -d "$src" ]
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then
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:
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else
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echo "$0: $src does not exist" >&2
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exit 1
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fi
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if [ x"$dst" = x ]
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then
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echo "$0: no destination specified" >&2
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exit 1
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else
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:
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fi
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# If destination is a directory, append the input filename; if your system
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# does not like double slashes in filenames, you may need to add some logic
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if [ -d "$dst" ]
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then
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dst=$dst/`basename "$src"`
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else
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:
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fi
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fi
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## this sed command emulates the dirname command
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dstdir=`echo "$dst" | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
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# Make sure that the destination directory exists.
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# this part is taken from Noah Friedman's mkinstalldirs script
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# Skip lots of stat calls in the usual case.
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if [ ! -d "$dstdir" ]; then
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defaultIFS='
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'
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IFS="${IFS-$defaultIFS}"
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oIFS=$IFS
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# Some sh's can't handle IFS=/ for some reason.
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IFS='%'
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set - `echo "$dstdir" | sed -e 's@/@%@g' -e 's@^%@/@'`
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IFS=$oIFS
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pathcomp=''
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while [ $# -ne 0 ] ; do
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pathcomp=$pathcomp$1
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shift
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if [ ! -d "$pathcomp" ] ;
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then
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$mkdirprog "$pathcomp"
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else
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:
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fi
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pathcomp=$pathcomp/
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done
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fi
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if [ x"$dir_arg" != x ]
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then
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$doit $instcmd "$dst" &&
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if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dst"; else : ; fi &&
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if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dst"; else : ; fi &&
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if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dst"; else : ; fi &&
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if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dst"; else : ; fi
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else
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# If we're going to rename the final executable, determine the name now.
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if [ x"$transformarg" = x ]
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then
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dstfile=`basename "$dst"`
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else
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dstfile=`basename "$dst" $transformbasename |
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sed $transformarg`$transformbasename
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fi
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# don't allow the sed command to completely eliminate the filename
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if [ x"$dstfile" = x ]
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then
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dstfile=`basename "$dst"`
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else
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:
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fi
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# Make a couple of temp file names in the proper directory.
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dsttmp=$dstdir/#inst.$$#
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rmtmp=$dstdir/#rm.$$#
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# Trap to clean up temp files at exit.
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trap 'status=$?; rm -f "$dsttmp" "$rmtmp" && exit $status' 0
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trap '(exit $?); exit' 1 2 13 15
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# Move or copy the file name to the temp name
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$doit $instcmd "$src" "$dsttmp" &&
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# and set any options; do chmod last to preserve setuid bits
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# If any of these fail, we abort the whole thing. If we want to
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# ignore errors from any of these, just make sure not to ignore
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# errors from the above "$doit $instcmd $src $dsttmp" command.
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if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dsttmp"; else :;fi &&
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if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dsttmp"; else :;fi &&
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if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dsttmp"; else :;fi &&
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if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dsttmp"; else :;fi &&
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# Now remove or move aside any old file at destination location. We try this
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# two ways since rm can't unlink itself on some systems and the destination
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# file might be busy for other reasons. In this case, the final cleanup
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# might fail but the new file should still install successfully.
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{
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if [ -f "$dstdir/$dstfile" ]
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then
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$doit $rmcmd -f "$dstdir/$dstfile" 2>/dev/null ||
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$doit $mvcmd -f "$dstdir/$dstfile" "$rmtmp" 2>/dev/null ||
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{
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echo "$0: cannot unlink or rename $dstdir/$dstfile" >&2
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(exit 1); exit
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}
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else
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:
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fi
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} &&
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# Now rename the file to the real destination.
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$doit $mvcmd "$dsttmp" "$dstdir/$dstfile"
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fi &&
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# The final little trick to "correctly" pass the exit status to the exit trap.
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{
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(exit 0); exit
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}
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