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| version 1.2, 2007/02/21 18:12:29 | version 1.8, 2012/06/08 12:20:20 |
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| Line 1 | Line 1 |
| #!/bin/sh | #!/bin/sh |
| # | |
| # install - install a program, script, or datafile | # install - install a program, script, or datafile |
| # This comes from X11R5 (mit/util/scripts/install.sh). | |
| scriptversion=2011-01-19.21; # UTC | |
| # 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. | |
| # | # |
| # Copyright 1991 by the Massachusetts Institute of Technology | |
| # | # |
| # Permission to use, copy, modify, distribute, and sell this software and its | # FSF changes to this file are in the public domain. |
| # 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 | # Calling this script install-sh is preferred over install.sh, to prevent |
| # `make' implicit rules from creating a file called install from it | # `make' implicit rules from creating a file called install from it |
| # when there is no Makefile. | # when there is no Makefile. |
| # | # |
| # This script is compatible with the BSD install script, but was written | # 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 | # from scratch. |
| # shared with many OS's install programs. | |
| nl=' | |
| ' | |
| IFS=" "" $nl" | |
| # set DOITPROG to echo to test this script | # set DOITPROG to echo to test this script |
| # Don't use :- since 4.3BSD and earlier shells don't like it. | # Don't use :- since 4.3BSD and earlier shells don't like it. |
| doit="${DOITPROG-}" | doit=${DOITPROG-} |
| if test -z "$doit"; then | |
| doit_exec=exec | |
| # 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 "install: no input file specified" | |
| exit 1 | |
| else | else |
| true | doit_exec=$doit |
| fi | fi |
| if [ x"$dir_arg" != x ]; then | # Put in absolute file names if you don't have them in your path; |
| dst=$src | # or use environment vars. |
| src="" | |
| if [ -d $dst ]; then | |
| instcmd=: | |
| chmodcmd="" | |
| else | |
| instcmd=mkdir | |
| fi | |
| else | |
| # Waiting for this to be detected by the "$instcmd $src $dsttmp" command | chgrpprog=${CHGRPPROG-chgrp} |
| # might cause directories to be created, which would be especially bad | chmodprog=${CHMODPROG-chmod} |
| # if $src (and thus $dsttmp) contains '*'. | chownprog=${CHOWNPROG-chown} |
| cmpprog=${CMPPROG-cmp} | |
| if [ -f $src -o -d $src ] | cpprog=${CPPROG-cp} |
| then | mkdirprog=${MKDIRPROG-mkdir} |
| true | mvprog=${MVPROG-mv} |
| else | rmprog=${RMPROG-rm} |
| echo "install: $src does not exist" | stripprog=${STRIPPROG-strip} |
| exit 1 | |
| fi | posix_glob='?' |
| initialize_posix_glob=' | |
| if [ x"$dst" = x ] | test "$posix_glob" != "?" || { |
| then | if (set -f) 2>/dev/null; then |
| echo "install: no destination specified" | posix_glob= |
| exit 1 | else |
| else | posix_glob=: |
| true | fi |
| 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 | |
| fi | |
| ## this sed command emulates the dirname command | |
| dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'` | |
| # Make sure that the destination directory exists. | posix_mkdir= |
| # this part is taken from Noah Friedman's mkinstalldirs script | |
| # Skip lots of stat calls in the usual case. | # Desired mode of installed file. |
| if [ ! -d "$dstdir" ]; then | mode=0755 |
| defaultIFS=' | |
| ' | |
| IFS="${IFS-${defaultIFS}}" | |
| oIFS="${IFS}" | chgrpcmd= |
| # Some sh's can't handle IFS=/ for some reason. | chmodcmd=$chmodprog |
| IFS='%' | chowncmd= |
| set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'` | mvcmd=$mvprog |
| IFS="${oIFS}" | rmcmd="$rmprog -f" |
| stripcmd= | |
| pathcomp='' | |
| while [ $# -ne 0 ] ; do | |
| pathcomp="${pathcomp}${1}" | |
| shift | |
| if [ ! -d "${pathcomp}" ] ; | |
| then | |
| $mkdirprog "${pathcomp}" | |
| else | |
| true | |
| fi | |
| pathcomp="${pathcomp}/" | src= |
| dst= | |
| dir_arg= | |
| dst_arg= | |
| copy_on_change=false | |
| 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: | |
| --help display this help and exit. | |
| --version display version info and exit. | |
| -c (ignored) | |
| -C install only if different (preserve the last data modification time) | |
| -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. | |
| Environment variables override the default commands: | |
| CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG | |
| RMPROG STRIPPROG | |
| " | |
| while test $# -ne 0; do | |
| case $1 in | |
| -c) ;; | |
| -C) copy_on_change=true;; | |
| -d) dir_arg=true;; | |
| -g) chgrpcmd="$chgrpprog $2" | |
| shift;; | |
| --help) echo "$usage"; exit $?;; | |
| -m) mode=$2 | |
| case $mode in | |
| *' '* | *' '* | *' | |
| '* | *'*'* | *'?'* | *'['*) | |
| echo "$0: invalid mode: $mode" >&2 | |
| exit 1;; | |
| esac | |
| shift;; | |
| -o) chowncmd="$chownprog $2" | |
| shift;; | |
| -s) stripcmd=$stripprog;; | |
| -t) dst_arg=$2 | |
| # Protect names problematic for `test' and other utilities. | |
| case $dst_arg in | |
| -* | [=\(\)!]) dst_arg=./$dst_arg;; | |
| esac | |
| shift;; | |
| -T) no_target_directory=true;; | |
| --version) echo "$0 $scriptversion"; exit $?;; | |
| --) shift | |
| break;; | |
| -*) echo "$0: invalid option: $1" >&2 | |
| exit 1;; | |
| *) break;; | |
| esac | |
| shift | |
| done | done |
| if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then | |
| # When -d is used, all remaining arguments are directories to create. | |
| # When -t is used, the destination is already specified. | |
| # Otherwise, the last argument is the destination. Remove it from $@. | |
| for arg | |
| do | |
| if test -n "$dst_arg"; then | |
| # $@ is not empty: it contains at least $arg. | |
| set fnord "$@" "$dst_arg" | |
| shift # fnord | |
| fi | |
| shift # arg | |
| dst_arg=$arg | |
| # Protect names problematic for `test' and other utilities. | |
| case $dst_arg in | |
| -* | [=\(\)!]) dst_arg=./$dst_arg;; | |
| esac | |
| done | |
| fi | fi |
| if [ x"$dir_arg" != x ] | if test $# -eq 0; then |
| then | if test -z "$dir_arg"; then |
| $doit $instcmd $dst && | echo "$0: no input file specified." >&2 |
| exit 1 | |
| if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else true ; fi && | fi |
| if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else true ; fi && | # It's OK to call `install-sh -d' without argument. |
| if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else true ; fi && | # This can happen when creating conditional directories. |
| if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else true ; fi | exit 0 |
| else | fi |
| # If we're going to rename the final executable, determine the name now. | if test -z "$dir_arg"; then |
| do_exit='(exit $ret); exit $ret' | |
| trap "ret=129; $do_exit" 1 | |
| trap "ret=130; $do_exit" 2 | |
| trap "ret=141; $do_exit" 13 | |
| trap "ret=143; $do_exit" 15 | |
| # Set umask so as not to create temps with too-generous modes. | |
| # However, 'strip' requires both read and write access to temps. | |
| case $mode in | |
| # Optimize common cases. | |
| *644) cp_umask=133;; | |
| *755) cp_umask=22;; | |
| *[0-7]) | |
| if test -z "$stripcmd"; then | |
| u_plus_rw= | |
| else | |
| u_plus_rw='% 200' | |
| fi | |
| cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;; | |
| *) | |
| if test -z "$stripcmd"; then | |
| u_plus_rw= | |
| else | |
| u_plus_rw=,u+rw | |
| fi | |
| cp_umask=$mode$u_plus_rw;; | |
| esac | |
| fi | |
| if [ x"$transformarg" = x ] | for src |
| then | do |
| dstfile=`basename $dst` | # Protect names problematic for `test' and other utilities. |
| case $src in | |
| -* | [=\(\)!]) src=./$src;; | |
| esac | |
| if test -n "$dir_arg"; then | |
| dst=$src | |
| dstdir=$dst | |
| test -d "$dstdir" | |
| dstdir_status=$? | |
| 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: $src does not exist." >&2 | |
| exit 1 | |
| fi | |
| if test -z "$dst_arg"; then | |
| echo "$0: no destination specified." >&2 | |
| exit 1 | |
| fi | |
| dst=$dst_arg | |
| # 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: $dst_arg: Is a directory" >&2 | |
| exit 1 | |
| fi | |
| dstdir=$dst | |
| dst=$dstdir/`basename "$src"` | |
| dstdir_status=0 | |
| else | |
| # Prefer dirname, but fall back on a substitute if dirname fails. | |
| dstdir=` | |
| (dirname "$dst") 2>/dev/null || | |
| expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \ | |
| X"$dst" : 'X\(//\)[^/]' \| \ | |
| X"$dst" : 'X\(//\)$' \| \ | |
| X"$dst" : 'X\(/\)' \| . 2>/dev/null || | |
| echo X"$dst" | | |
| sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ | |
| s//\1/ | |
| q | |
| } | |
| /^X\(\/\/\)[^/].*/{ | |
| s//\1/ | |
| q | |
| } | |
| /^X\(\/\/\)$/{ | |
| s//\1/ | |
| q | |
| } | |
| /^X\(\/\).*/{ | |
| s//\1/ | |
| q | |
| } | |
| s/.*/./; q' | |
| ` | |
| test -d "$dstdir" | |
| dstdir_status=$? | |
| fi | |
| fi | |
| obsolete_mkdir_used=false | |
| if test $dstdir_status != 0; then | |
| case $posix_mkdir in | |
| '') | |
| # Create intermediate dirs using mode 755 as modified by the umask. | |
| # This is like FreeBSD 'install' as of 1997-10-28. | |
| umask=`umask` | |
| case $stripcmd.$umask in | |
| # Optimize common cases. | |
| *[2367][2367]) mkdir_umask=$umask;; | |
| .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;; | |
| *[0-7]) | |
| mkdir_umask=`expr $umask + 22 \ | |
| - $umask % 100 % 40 + $umask % 20 \ | |
| - $umask % 10 % 4 + $umask % 2 | |
| `;; | |
| *) mkdir_umask=$umask,go-w;; | |
| esac | |
| # With -d, create the new directory with the user-specified mode. | |
| # Otherwise, rely on $mkdir_umask. | |
| if test -n "$dir_arg"; then | |
| mkdir_mode=-m$mode | |
| else | else |
| dstfile=`basename $dst $transformbasename | | mkdir_mode= |
| sed $transformarg`$transformbasename | |
| fi | fi |
| # don't allow the sed command to completely eliminate the filename | posix_mkdir=false |
| case $umask in | |
| *[123567][0-7][0-7]) | |
| # POSIX mkdir -p sets u+wx bits regardless of umask, which | |
| # is incompatible with FreeBSD 'install' when (umask & 300) != 0. | |
| ;; | |
| *) | |
| tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$ | |
| trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0 | |
| if (umask $mkdir_umask && | |
| exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1 | |
| then | |
| if test -z "$dir_arg" || { | |
| # Check for POSIX incompatibilities with -m. | |
| # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or | |
| # other-writeable bit of parent directory when it shouldn't. | |
| # FreeBSD 6.1 mkdir -m -p sets mode of existing directory. | |
| ls_ld_tmpdir=`ls -ld "$tmpdir"` | |
| case $ls_ld_tmpdir in | |
| d????-?r-*) different_mode=700;; | |
| d????-?--*) different_mode=755;; | |
| *) false;; | |
| esac && | |
| $mkdirprog -m$different_mode -p -- "$tmpdir" && { | |
| ls_ld_tmpdir_1=`ls -ld "$tmpdir"` | |
| test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1" | |
| } | |
| } | |
| then posix_mkdir=: | |
| fi | |
| rmdir "$tmpdir/d" "$tmpdir" | |
| else | |
| # Remove any dirs left behind by ancient mkdir implementations. | |
| rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null | |
| fi | |
| trap '' 0;; | |
| esac;; | |
| esac | |
| if [ x"$dstfile" = x ] | if |
| then | $posix_mkdir && ( |
| dstfile=`basename $dst` | umask $mkdir_umask && |
| $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir" | |
| ) | |
| then : | |
| else | |
| # The umask is ridiculous, or mkdir does not conform to POSIX, | |
| # or it failed possibly due to a race condition. Create the | |
| # directory the slow way, step by step, checking for races as we go. | |
| case $dstdir in | |
| /*) prefix='/';; | |
| [-=\(\)!]*) prefix='./';; | |
| *) prefix='';; | |
| esac | |
| eval "$initialize_posix_glob" | |
| oIFS=$IFS | |
| IFS=/ | |
| $posix_glob set -f | |
| set fnord $dstdir | |
| shift | |
| $posix_glob set +f | |
| IFS=$oIFS | |
| prefixes= | |
| for d | |
| do | |
| test X"$d" = X && continue | |
| prefix=$prefix$d | |
| if test -d "$prefix"; then | |
| prefixes= | |
| else | else |
| true | if $posix_mkdir; then |
| (umask=$mkdir_umask && | |
| $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break | |
| # Don't fail if two instances are running concurrently. | |
| test -d "$prefix" || exit 1 | |
| else | |
| case $prefix in | |
| *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;; | |
| *) qprefix=$prefix;; | |
| esac | |
| prefixes="$prefixes '$qprefix'" | |
| fi | |
| fi | fi |
| prefix=$prefix/ | |
| done | |
| # Make a temp file name in the proper directory. | if test -n "$prefixes"; then |
| # Don't fail if two instances are running concurrently. | |
| dsttmp=$dstdir/#inst.$$# | (umask $mkdir_umask && |
| eval "\$doit_exec \$mkdirprog $prefixes") || | |
| # Move or copy the file name to the temp name | test -d "$dstdir" || exit 1 |
| obsolete_mkdir_used=true | |
| $doit $instcmd $src $dsttmp && | fi |
| fi | |
| trap "rm -f ${dsttmp}" 0 && | fi |
| # and set any options; do chmod last to preserve setuid bits | if test -n "$dir_arg"; then |
| { test -z "$chowncmd" || $doit $chowncmd "$dst"; } && | |
| # If any of these fail, we abort the whole thing. If we want to | { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } && |
| # ignore errors from any of these, just make sure not to ignore | { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false || |
| # errors from the above "$doit $instcmd $src $dsttmp" command. | test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1 |
| else | |
| if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else true;fi && | |
| if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else true;fi && | # Make a couple of temp file names in the proper directory. |
| if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else true;fi && | dsttmp=$dstdir/_inst.$$_ |
| if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else true;fi && | rmtmp=$dstdir/_rm.$$_ |
| # Now rename the file to the real destination. | # Trap to clean up those temp files at exit. |
| trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0 | |
| $doit $rmcmd -f $dstdir/$dstfile && | |
| $doit $mvcmd $dsttmp $dstdir/$dstfile | # Copy the file name to the temp name. |
| (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") && | |
| fi && | |
| # and set any options; do chmod last to preserve setuid bits. | |
| # | |
| # If any of these fail, we abort the whole thing. If we want to | |
| # ignore errors from any of these, just make sure not to ignore | |
| # errors from the above "$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 $mode "$dsttmp"; } && | |
| # If -C, don't bother to copy if it wouldn't change the file. | |
| if $copy_on_change && | |
| old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` && | |
| new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` && | |
| eval "$initialize_posix_glob" && | |
| $posix_glob set -f && | |
| set X $old && old=:$2:$4:$5:$6 && | |
| set X $new && new=:$2:$4:$5:$6 && | |
| $posix_glob set +f && | |
| test "$old" = "$new" && | |
| $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1 | |
| then | |
| rm -f "$dsttmp" | |
| else | |
| # Rename the file to the real destination. | |
| $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null || | |
| # The rename failed, perhaps because mv can't rename something else | |
| # to itself, or perhaps because mv is so ancient that it does not | |
| # support -f. | |
| { | |
| # Now remove or move aside any old file at destination location. | |
| # We try this two ways since rm can't unlink itself on some | |
| # systems and the destination file might be busy for other | |
| # reasons. In this case, the final cleanup might fail but the new | |
| # file should still install successfully. | |
| { | |
| test ! -f "$dst" || | |
| $doit $rmcmd -f "$dst" 2>/dev/null || | |
| { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null && | |
| { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; } | |
| } || | |
| { echo "$0: cannot unlink or rename $dst" >&2 | |
| (exit 1); exit 1 | |
| } | |
| } && | |
| # Now rename the file to the real destination. | |
| $doit $mvcmd "$dsttmp" "$dst" | |
| } | |
| fi || exit 1 | |
| trap '' 0 | |
| fi | |
| done | |
| 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-time-zone: "UTC" | |
| # time-stamp-end: "; # UTC" | |
| # End: |