install-sh

#!/bin/sh
# install - install a program, script, or datafile

scriptversion=2005-05-14.22

# 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}"

chmodcmd="$chmodprog 0755"
chowncmd=
chgrpcmd=
stripcmd=
rmcmd="$rmprog -f"
mvcmd="$mvprog"
src=
dst=
dir_arg=
dstarg=
no_target_directory=

usage="Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
 or: $0 [OPTION]... SRCFILES... DIRECTORY
 or: $0 [OPTION]... -t DIRECTORY SRCFILES...
 or: $0 [OPTION]... -d DIRECTORIES...

In the 1st form, copy SRCFILE to DSTFILE.
In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
In the 4th, create DIRECTORIES.

Options:
-c (ignored)
-d create directories instead of installing files.
-g GROUP $chgrpprog installed files to GROUP.
-m MODE $chmodprog installed files to MODE.
-o USER $chownprog installed files to USER.
-s $stripprog installed files.
-t DIRECTORY install into DIRECTORY.
-T report an error if DSTFILE is a directory.
--help display this help and exit.
--version display version info and exit.

Environment variables override the default commands:
 CHGRPPROG CHMODPROG CHOWNPROG CPPROG MKDIRPROG MVPROG RMPROG STRIPPROG
"

while test -n "$1"; do
 case $1 in
 -c) shift
 continue;;

 -d) dir_arg=true
 shift
 continue;;

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

 --help) echo "$usage"; exit $?;;

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

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

 -s) stripcmd=$stripprog
 shift
 continue;;

 -t) dstarg=$2
shift
shift
continue;;

 -T) no_target_directory=true
shift
continue;;

 --version) echo "$0 $scriptversion"; exit $?;;

 *) # When -d is used, all remaining arguments are directories to create.
# When -t is used, the destination is already specified.
test -n "$dir_arg$dstarg" && break
 # Otherwise, the last argument is the destination. Remove it from $@.
for arg
do
 if test -n "$dstarg"; then
 # $@ is not empty: it contains at least $arg.
 set fnord "$@" "$dstarg"
 shift # fnord
 fi
 shift # arg
 dstarg=$arg
done
break;;
 esac
done

if test -z "$1"; then
 if test -z "$dir_arg"; then
 echo "$0: no input file specified." >&2
 exit 1
 fi
 # It's OK to call `install-sh -d' without argument.
 # This can happen when creating conditional directories.
 exit 0
fi

for src
do
 # Protect names starting with `-'.
 case $src in
 -*) src=./$src ;;
 esac

 if test -n "$dir_arg"; then
 dst=$src
 src=

 if test -d "$dst"; then
 mkdircmd=:
 chmodcmd=
 else
 mkdircmd=$mkdirprog
 fi
 else
 # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
 # might cause directories to be created, which would be especially bad
 # if $src (and thus $dsttmp) contains '*'.
 if test ! -f "$src" && test ! -d "$src"; then
 echo "$0: $src does not exist." >&2
 exit 1
 fi

 if test -z "$dstarg"; then
 echo "$0: no destination specified." >&2
 exit 1
 fi

 dst=$dstarg
 # Protect names starting with `-'.
 case $dst in
 -*) dst=./$dst ;;
 esac

 # If destination is a directory, append the input filename; won't work
 # if double slashes aren't ignored.
 if test -d "$dst"; then
 if test -n "$no_target_directory"; then
echo "$0: $dstarg: Is a directory" >&2
exit 1
 fi
 dst=$dst/`basename "$src"`
 fi
 fi

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

 # Make sure that the destination directory exists.

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

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

 pathcomp=

 while test $# -ne 0 ; do
 pathcomp=$pathcomp$1
 shift
 if test ! -d "$pathcomp"; then
 $mkdirprog "$pathcomp"
# mkdir can fail with a `File exist' error in case several
# install-sh are creating the directory concurrently. This
# is OK.
test -d "$pathcomp" || exit
 fi
 pathcomp=$pathcomp/
 done
 fi

 if test -n "$dir_arg"; then
 $doit $mkdircmd "$dst" \
 && { test -z "$chowncmd" || $doit $chowncmd "$dst"; } \
 && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } \
 && { test -z "$stripcmd" || $doit $stripcmd "$dst"; } \
 && { test -z "$chmodcmd" || $doit $chmodcmd "$dst"; }

 else
 dstfile=`basename "$dst"`

 # Make a couple of temp file names in the proper directory.
 dsttmp=$dstdir/_inst.$$_
 rmtmp=$dstdir/_rm.$$_

 # Trap to clean up those temp files at exit.
 trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
 trap '(exit $?); exit' 1 2 13 15

 # Copy the file name to the temp name.
 $doit $cpprog "$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 $cpprog $src $dsttmp" command.
 #
 { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } \
 && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } \
 && { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } \
 && { test -z "$chmodcmd" || $doit $chmodcmd "$dsttmp"; } &&

 # Now rename the file to the real destination.
 { $doit $mvcmd -f "$dsttmp" "$dstdir/$dstfile" 2>/dev/null \
 || {
 # The rename failed, perhaps because mv can't rename something else
 # to itself, or perhaps because mv is so ancient that it does not
 # support -f.

 # 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 test -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 1
 }
 else
 :
 fi
 } &&

 # Now rename the file to the real destination.
 $doit $mvcmd "$dsttmp" "$dstdir/$dstfile"
 }
 }
 fi || { (exit 1); exit 1; }
done

# The final little trick to "correctly" pass the exit status to the exit trap.
{
 (exit 0); exit 0
}

# Local variables:
# eval: (add-hook 'write-file-hooks 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-end: "$"
# End: