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install-sh (15368B)


      1 #!/bin/sh
      2 # install - install a program, script, or datafile
      3 
      4 scriptversion=2018-03-11.20; # UTC
      5 
      6 # This originates from X11R5 (mit/util/scripts/install.sh), which was
      7 # later released in X11R6 (xc/config/util/install.sh) with the
      8 # following copyright and license.
      9 #
     10 # Copyright (C) 1994 X Consortium
     11 #
     12 # Permission is hereby granted, free of charge, to any person obtaining a copy
     13 # of this software and associated documentation files (the "Software"), to
     14 # deal in the Software without restriction, including without limitation the
     15 # rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
     16 # sell copies of the Software, and to permit persons to whom the Software is
     17 # furnished to do so, subject to the following conditions:
     18 #
     19 # The above copyright notice and this permission notice shall be included in
     20 # all copies or substantial portions of the Software.
     21 #
     22 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     23 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     24 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
     25 # X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
     26 # AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
     27 # TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
     28 #
     29 # Except as contained in this notice, the name of the X Consortium shall not
     30 # be used in advertising or otherwise to promote the sale, use or other deal-
     31 # ings in this Software without prior written authorization from the X Consor-
     32 # tium.
     33 #
     34 #
     35 # FSF changes to this file are in the public domain.
     36 #
     37 # Calling this script install-sh is preferred over install.sh, to prevent
     38 # 'make' implicit rules from creating a file called install from it
     39 # when there is no Makefile.
     40 #
     41 # This script is compatible with the BSD install script, but was written
     42 # from scratch.
     43 
     44 tab='	'
     45 nl='
     46 '
     47 IFS=" $tab$nl"
     48 
     49 # Set DOITPROG to "echo" to test this script.
     50 
     51 doit=${DOITPROG-}
     52 doit_exec=${doit:-exec}
     53 
     54 # Put in absolute file names if you don't have them in your path;
     55 # or use environment vars.
     56 
     57 chgrpprog=${CHGRPPROG-chgrp}
     58 chmodprog=${CHMODPROG-chmod}
     59 chownprog=${CHOWNPROG-chown}
     60 cmpprog=${CMPPROG-cmp}
     61 cpprog=${CPPROG-cp}
     62 mkdirprog=${MKDIRPROG-mkdir}
     63 mvprog=${MVPROG-mv}
     64 rmprog=${RMPROG-rm}
     65 stripprog=${STRIPPROG-strip}
     66 
     67 posix_mkdir=
     68 
     69 # Desired mode of installed file.
     70 mode=0755
     71 
     72 chgrpcmd=
     73 chmodcmd=$chmodprog
     74 chowncmd=
     75 mvcmd=$mvprog
     76 rmcmd="$rmprog -f"
     77 stripcmd=
     78 
     79 src=
     80 dst=
     81 dir_arg=
     82 dst_arg=
     83 
     84 copy_on_change=false
     85 is_target_a_directory=possibly
     86 
     87 usage="\
     88 Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
     89    or: $0 [OPTION]... SRCFILES... DIRECTORY
     90    or: $0 [OPTION]... -t DIRECTORY SRCFILES...
     91    or: $0 [OPTION]... -d DIRECTORIES...
     92 
     93 In the 1st form, copy SRCFILE to DSTFILE.
     94 In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
     95 In the 4th, create DIRECTORIES.
     96 
     97 Options:
     98      --help     display this help and exit.
     99      --version  display version info and exit.
    100 
    101   -c            (ignored)
    102   -C            install only if different (preserve the last data modification time)
    103   -d            create directories instead of installing files.
    104   -g GROUP      $chgrpprog installed files to GROUP.
    105   -m MODE       $chmodprog installed files to MODE.
    106   -o USER       $chownprog installed files to USER.
    107   -s            $stripprog installed files.
    108   -t DIRECTORY  install into DIRECTORY.
    109   -T            report an error if DSTFILE is a directory.
    110 
    111 Environment variables override the default commands:
    112   CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
    113   RMPROG STRIPPROG
    114 "
    115 
    116 while test $# -ne 0; do
    117   case $1 in
    118     -c) ;;
    119 
    120     -C) copy_on_change=true;;
    121 
    122     -d) dir_arg=true;;
    123 
    124     -g) chgrpcmd="$chgrpprog $2"
    125         shift;;
    126 
    127     --help) echo "$usage"; exit $?;;
    128 
    129     -m) mode=$2
    130         case $mode in
    131           *' '* | *"$tab"* | *"$nl"* | *'*'* | *'?'* | *'['*)
    132             echo "$0: invalid mode: $mode" >&2
    133             exit 1;;
    134         esac
    135         shift;;
    136 
    137     -o) chowncmd="$chownprog $2"
    138         shift;;
    139 
    140     -s) stripcmd=$stripprog;;
    141 
    142     -t)
    143         is_target_a_directory=always
    144         dst_arg=$2
    145         # Protect names problematic for 'test' and other utilities.
    146         case $dst_arg in
    147           -* | [=\(\)!]) dst_arg=./$dst_arg;;
    148         esac
    149         shift;;
    150 
    151     -T) is_target_a_directory=never;;
    152 
    153     --version) echo "$0 $scriptversion"; exit $?;;
    154 
    155     --) shift
    156         break;;
    157 
    158     -*) echo "$0: invalid option: $1" >&2
    159         exit 1;;
    160 
    161     *)  break;;
    162   esac
    163   shift
    164 done
    165 
    166 # We allow the use of options -d and -T together, by making -d
    167 # take the precedence; this is for compatibility with GNU install.
    168 
    169 if test -n "$dir_arg"; then
    170   if test -n "$dst_arg"; then
    171     echo "$0: target directory not allowed when installing a directory." >&2
    172     exit 1
    173   fi
    174 fi
    175 
    176 if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
    177   # When -d is used, all remaining arguments are directories to create.
    178   # When -t is used, the destination is already specified.
    179   # Otherwise, the last argument is the destination.  Remove it from $@.
    180   for arg
    181   do
    182     if test -n "$dst_arg"; then
    183       # $@ is not empty: it contains at least $arg.
    184       set fnord "$@" "$dst_arg"
    185       shift # fnord
    186     fi
    187     shift # arg
    188     dst_arg=$arg
    189     # Protect names problematic for 'test' and other utilities.
    190     case $dst_arg in
    191       -* | [=\(\)!]) dst_arg=./$dst_arg;;
    192     esac
    193   done
    194 fi
    195 
    196 if test $# -eq 0; then
    197   if test -z "$dir_arg"; then
    198     echo "$0: no input file specified." >&2
    199     exit 1
    200   fi
    201   # It's OK to call 'install-sh -d' without argument.
    202   # This can happen when creating conditional directories.
    203   exit 0
    204 fi
    205 
    206 if test -z "$dir_arg"; then
    207   if test $# -gt 1 || test "$is_target_a_directory" = always; then
    208     if test ! -d "$dst_arg"; then
    209       echo "$0: $dst_arg: Is not a directory." >&2
    210       exit 1
    211     fi
    212   fi
    213 fi
    214 
    215 if test -z "$dir_arg"; then
    216   do_exit='(exit $ret); exit $ret'
    217   trap "ret=129; $do_exit" 1
    218   trap "ret=130; $do_exit" 2
    219   trap "ret=141; $do_exit" 13
    220   trap "ret=143; $do_exit" 15
    221 
    222   # Set umask so as not to create temps with too-generous modes.
    223   # However, 'strip' requires both read and write access to temps.
    224   case $mode in
    225     # Optimize common cases.
    226     *644) cp_umask=133;;
    227     *755) cp_umask=22;;
    228 
    229     *[0-7])
    230       if test -z "$stripcmd"; then
    231         u_plus_rw=
    232       else
    233         u_plus_rw='% 200'
    234       fi
    235       cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
    236     *)
    237       if test -z "$stripcmd"; then
    238         u_plus_rw=
    239       else
    240         u_plus_rw=,u+rw
    241       fi
    242       cp_umask=$mode$u_plus_rw;;
    243   esac
    244 fi
    245 
    246 for src
    247 do
    248   # Protect names problematic for 'test' and other utilities.
    249   case $src in
    250     -* | [=\(\)!]) src=./$src;;
    251   esac
    252 
    253   if test -n "$dir_arg"; then
    254     dst=$src
    255     dstdir=$dst
    256     test -d "$dstdir"
    257     dstdir_status=$?
    258   else
    259 
    260     # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
    261     # might cause directories to be created, which would be especially bad
    262     # if $src (and thus $dsttmp) contains '*'.
    263     if test ! -f "$src" && test ! -d "$src"; then
    264       echo "$0: $src does not exist." >&2
    265       exit 1
    266     fi
    267 
    268     if test -z "$dst_arg"; then
    269       echo "$0: no destination specified." >&2
    270       exit 1
    271     fi
    272     dst=$dst_arg
    273 
    274     # If destination is a directory, append the input filename.
    275     if test -d "$dst"; then
    276       if test "$is_target_a_directory" = never; then
    277         echo "$0: $dst_arg: Is a directory" >&2
    278         exit 1
    279       fi
    280       dstdir=$dst
    281       dstbase=`basename "$src"`
    282       case $dst in
    283 	*/) dst=$dst$dstbase;;
    284 	*)  dst=$dst/$dstbase;;
    285       esac
    286       dstdir_status=0
    287     else
    288       dstdir=`dirname "$dst"`
    289       test -d "$dstdir"
    290       dstdir_status=$?
    291     fi
    292   fi
    293 
    294   case $dstdir in
    295     */) dstdirslash=$dstdir;;
    296     *)  dstdirslash=$dstdir/;;
    297   esac
    298 
    299   obsolete_mkdir_used=false
    300 
    301   if test $dstdir_status != 0; then
    302     case $posix_mkdir in
    303       '')
    304         # Create intermediate dirs using mode 755 as modified by the umask.
    305         # This is like FreeBSD 'install' as of 1997-10-28.
    306         umask=`umask`
    307         case $stripcmd.$umask in
    308           # Optimize common cases.
    309           *[2367][2367]) mkdir_umask=$umask;;
    310           .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
    311 
    312           *[0-7])
    313             mkdir_umask=`expr $umask + 22 \
    314               - $umask % 100 % 40 + $umask % 20 \
    315               - $umask % 10 % 4 + $umask % 2
    316             `;;
    317           *) mkdir_umask=$umask,go-w;;
    318         esac
    319 
    320         # With -d, create the new directory with the user-specified mode.
    321         # Otherwise, rely on $mkdir_umask.
    322         if test -n "$dir_arg"; then
    323           mkdir_mode=-m$mode
    324         else
    325           mkdir_mode=
    326         fi
    327 
    328         posix_mkdir=false
    329         case $umask in
    330           *[123567][0-7][0-7])
    331             # POSIX mkdir -p sets u+wx bits regardless of umask, which
    332             # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
    333             ;;
    334           *)
    335             # Note that $RANDOM variable is not portable (e.g. dash);  Use it
    336             # here however when possible just to lower collision chance.
    337             tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
    338 
    339             trap 'ret=$?; rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null; exit $ret' 0
    340 
    341             # Because "mkdir -p" follows existing symlinks and we likely work
    342             # directly in world-writeable /tmp, make sure that the '$tmpdir'
    343             # directory is successfully created first before we actually test
    344             # 'mkdir -p' feature.
    345             if (umask $mkdir_umask &&
    346                 $mkdirprog $mkdir_mode "$tmpdir" &&
    347                 exec $mkdirprog $mkdir_mode -p -- "$tmpdir/a/b") >/dev/null 2>&1
    348             then
    349               if test -z "$dir_arg" || {
    350                    # Check for POSIX incompatibilities with -m.
    351                    # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
    352                    # other-writable bit of parent directory when it shouldn't.
    353                    # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
    354                    test_tmpdir="$tmpdir/a"
    355                    ls_ld_tmpdir=`ls -ld "$test_tmpdir"`
    356                    case $ls_ld_tmpdir in
    357                      d????-?r-*) different_mode=700;;
    358                      d????-?--*) different_mode=755;;
    359                      *) false;;
    360                    esac &&
    361                    $mkdirprog -m$different_mode -p -- "$test_tmpdir" && {
    362                      ls_ld_tmpdir_1=`ls -ld "$test_tmpdir"`
    363                      test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
    364                    }
    365                  }
    366               then posix_mkdir=:
    367               fi
    368               rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir"
    369             else
    370               # Remove any dirs left behind by ancient mkdir implementations.
    371               rmdir ./$mkdir_mode ./-p ./-- "$tmpdir" 2>/dev/null
    372             fi
    373             trap '' 0;;
    374         esac;;
    375     esac
    376 
    377     if
    378       $posix_mkdir && (
    379         umask $mkdir_umask &&
    380         $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
    381       )
    382     then :
    383     else
    384 
    385       # The umask is ridiculous, or mkdir does not conform to POSIX,
    386       # or it failed possibly due to a race condition.  Create the
    387       # directory the slow way, step by step, checking for races as we go.
    388 
    389       case $dstdir in
    390         /*) prefix='/';;
    391         [-=\(\)!]*) prefix='./';;
    392         *)  prefix='';;
    393       esac
    394 
    395       oIFS=$IFS
    396       IFS=/
    397       set -f
    398       set fnord $dstdir
    399       shift
    400       set +f
    401       IFS=$oIFS
    402 
    403       prefixes=
    404 
    405       for d
    406       do
    407         test X"$d" = X && continue
    408 
    409         prefix=$prefix$d
    410         if test -d "$prefix"; then
    411           prefixes=
    412         else
    413           if $posix_mkdir; then
    414             (umask=$mkdir_umask &&
    415              $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
    416             # Don't fail if two instances are running concurrently.
    417             test -d "$prefix" || exit 1
    418           else
    419             case $prefix in
    420               *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
    421               *) qprefix=$prefix;;
    422             esac
    423             prefixes="$prefixes '$qprefix'"
    424           fi
    425         fi
    426         prefix=$prefix/
    427       done
    428 
    429       if test -n "$prefixes"; then
    430         # Don't fail if two instances are running concurrently.
    431         (umask $mkdir_umask &&
    432          eval "\$doit_exec \$mkdirprog $prefixes") ||
    433           test -d "$dstdir" || exit 1
    434         obsolete_mkdir_used=true
    435       fi
    436     fi
    437   fi
    438 
    439   if test -n "$dir_arg"; then
    440     { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
    441     { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
    442     { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
    443       test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
    444   else
    445 
    446     # Make a couple of temp file names in the proper directory.
    447     dsttmp=${dstdirslash}_inst.$$_
    448     rmtmp=${dstdirslash}_rm.$$_
    449 
    450     # Trap to clean up those temp files at exit.
    451     trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
    452 
    453     # Copy the file name to the temp name.
    454     (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
    455 
    456     # and set any options; do chmod last to preserve setuid bits.
    457     #
    458     # If any of these fail, we abort the whole thing.  If we want to
    459     # ignore errors from any of these, just make sure not to ignore
    460     # errors from the above "$doit $cpprog $src $dsttmp" command.
    461     #
    462     { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
    463     { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
    464     { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
    465     { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
    466 
    467     # If -C, don't bother to copy if it wouldn't change the file.
    468     if $copy_on_change &&
    469        old=`LC_ALL=C ls -dlL "$dst"     2>/dev/null` &&
    470        new=`LC_ALL=C ls -dlL "$dsttmp"  2>/dev/null` &&
    471        set -f &&
    472        set X $old && old=:$2:$4:$5:$6 &&
    473        set X $new && new=:$2:$4:$5:$6 &&
    474        set +f &&
    475        test "$old" = "$new" &&
    476        $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
    477     then
    478       rm -f "$dsttmp"
    479     else
    480       # Rename the file to the real destination.
    481       $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
    482 
    483       # The rename failed, perhaps because mv can't rename something else
    484       # to itself, or perhaps because mv is so ancient that it does not
    485       # support -f.
    486       {
    487         # Now remove or move aside any old file at destination location.
    488         # We try this two ways since rm can't unlink itself on some
    489         # systems and the destination file might be busy for other
    490         # reasons.  In this case, the final cleanup might fail but the new
    491         # file should still install successfully.
    492         {
    493           test ! -f "$dst" ||
    494           $doit $rmcmd -f "$dst" 2>/dev/null ||
    495           { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
    496             { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
    497           } ||
    498           { echo "$0: cannot unlink or rename $dst" >&2
    499             (exit 1); exit 1
    500           }
    501         } &&
    502 
    503         # Now rename the file to the real destination.
    504         $doit $mvcmd "$dsttmp" "$dst"
    505       }
    506     fi || exit 1
    507 
    508     trap '' 0
    509   fi
    510 done
    511 
    512 # Local variables:
    513 # eval: (add-hook 'before-save-hook 'time-stamp)
    514 # time-stamp-start: "scriptversion="
    515 # time-stamp-format: "%:y-%02m-%02d.%02H"
    516 # time-stamp-time-zone: "UTC0"
    517 # time-stamp-end: "; # UTC"
    518 # End: