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      1 #!/bin/sh
      2 # install - install a program, script, or datafile
      3 
      4 scriptversion=2014-09-12.12; # 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; won't work
    275     # if double slashes aren't ignored.
    276     if test -d "$dst"; then
    277       if test "$is_target_a_directory" = never; then
    278         echo "$0: $dst_arg: Is a directory" >&2
    279         exit 1
    280       fi
    281       dstdir=$dst
    282       dst=$dstdir/`basename "$src"`
    283       dstdir_status=0
    284     else
    285       dstdir=`dirname "$dst"`
    286       test -d "$dstdir"
    287       dstdir_status=$?
    288     fi
    289   fi
    290 
    291   obsolete_mkdir_used=false
    292 
    293   if test $dstdir_status != 0; then
    294     case $posix_mkdir in
    295       '')
    296         # Create intermediate dirs using mode 755 as modified by the umask.
    297         # This is like FreeBSD 'install' as of 1997-10-28.
    298         umask=`umask`
    299         case $stripcmd.$umask in
    300           # Optimize common cases.
    301           *[2367][2367]) mkdir_umask=$umask;;
    302           .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
    303 
    304           *[0-7])
    305             mkdir_umask=`expr $umask + 22 \
    306               - $umask % 100 % 40 + $umask % 20 \
    307               - $umask % 10 % 4 + $umask % 2
    308             `;;
    309           *) mkdir_umask=$umask,go-w;;
    310         esac
    311 
    312         # With -d, create the new directory with the user-specified mode.
    313         # Otherwise, rely on $mkdir_umask.
    314         if test -n "$dir_arg"; then
    315           mkdir_mode=-m$mode
    316         else
    317           mkdir_mode=
    318         fi
    319 
    320         posix_mkdir=false
    321         case $umask in
    322           *[123567][0-7][0-7])
    323             # POSIX mkdir -p sets u+wx bits regardless of umask, which
    324             # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
    325             ;;
    326           *)
    327             # $RANDOM is not portable (e.g. dash);  use it when possible to
    328             # lower collision chance
    329             tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
    330             trap 'ret=$?; rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null; exit $ret' 0
    331 
    332             # As "mkdir -p" follows symlinks and we work in /tmp possibly;  so
    333             # create the $tmpdir first (and fail if unsuccessful) to make sure
    334             # that nobody tries to guess the $tmpdir name.
    335             if (umask $mkdir_umask &&
    336                 $mkdirprog $mkdir_mode "$tmpdir" &&
    337                 exec $mkdirprog $mkdir_mode -p -- "$tmpdir/a/b") >/dev/null 2>&1
    338             then
    339               if test -z "$dir_arg" || {
    340                    # Check for POSIX incompatibilities with -m.
    341                    # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
    342                    # other-writable bit of parent directory when it shouldn't.
    343                    # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
    344                    test_tmpdir="$tmpdir/a"
    345                    ls_ld_tmpdir=`ls -ld "$test_tmpdir"`
    346                    case $ls_ld_tmpdir in
    347                      d????-?r-*) different_mode=700;;
    348                      d????-?--*) different_mode=755;;
    349                      *) false;;
    350                    esac &&
    351                    $mkdirprog -m$different_mode -p -- "$test_tmpdir" && {
    352                      ls_ld_tmpdir_1=`ls -ld "$test_tmpdir"`
    353                      test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
    354                    }
    355                  }
    356               then posix_mkdir=:
    357               fi
    358               rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir"
    359             else
    360               # Remove any dirs left behind by ancient mkdir implementations.
    361               rmdir ./$mkdir_mode ./-p ./-- "$tmpdir" 2>/dev/null
    362             fi
    363             trap '' 0;;
    364         esac;;
    365     esac
    366 
    367     if
    368       $posix_mkdir && (
    369         umask $mkdir_umask &&
    370         $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
    371       )
    372     then :
    373     else
    374 
    375       # The umask is ridiculous, or mkdir does not conform to POSIX,
    376       # or it failed possibly due to a race condition.  Create the
    377       # directory the slow way, step by step, checking for races as we go.
    378 
    379       case $dstdir in
    380         /*) prefix='/';;
    381         [-=\(\)!]*) prefix='./';;
    382         *)  prefix='';;
    383       esac
    384 
    385       oIFS=$IFS
    386       IFS=/
    387       set -f
    388       set fnord $dstdir
    389       shift
    390       set +f
    391       IFS=$oIFS
    392 
    393       prefixes=
    394 
    395       for d
    396       do
    397         test X"$d" = X && continue
    398 
    399         prefix=$prefix$d
    400         if test -d "$prefix"; then
    401           prefixes=
    402         else
    403           if $posix_mkdir; then
    404             (umask=$mkdir_umask &&
    405              $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
    406             # Don't fail if two instances are running concurrently.
    407             test -d "$prefix" || exit 1
    408           else
    409             case $prefix in
    410               *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
    411               *) qprefix=$prefix;;
    412             esac
    413             prefixes="$prefixes '$qprefix'"
    414           fi
    415         fi
    416         prefix=$prefix/
    417       done
    418 
    419       if test -n "$prefixes"; then
    420         # Don't fail if two instances are running concurrently.
    421         (umask $mkdir_umask &&
    422          eval "\$doit_exec \$mkdirprog $prefixes") ||
    423           test -d "$dstdir" || exit 1
    424         obsolete_mkdir_used=true
    425       fi
    426     fi
    427   fi
    428 
    429   if test -n "$dir_arg"; then
    430     { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
    431     { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
    432     { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
    433       test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
    434   else
    435 
    436     # Make a couple of temp file names in the proper directory.
    437     dsttmp=$dstdir/_inst.$$_
    438     rmtmp=$dstdir/_rm.$$_
    439 
    440     # Trap to clean up those temp files at exit.
    441     trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
    442 
    443     # Copy the file name to the temp name.
    444     (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
    445 
    446     # and set any options; do chmod last to preserve setuid bits.
    447     #
    448     # If any of these fail, we abort the whole thing.  If we want to
    449     # ignore errors from any of these, just make sure not to ignore
    450     # errors from the above "$doit $cpprog $src $dsttmp" command.
    451     #
    452     { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
    453     { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
    454     { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
    455     { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
    456 
    457     # If -C, don't bother to copy if it wouldn't change the file.
    458     if $copy_on_change &&
    459        old=`LC_ALL=C ls -dlL "$dst"     2>/dev/null` &&
    460        new=`LC_ALL=C ls -dlL "$dsttmp"  2>/dev/null` &&
    461        set -f &&
    462        set X $old && old=:$2:$4:$5:$6 &&
    463        set X $new && new=:$2:$4:$5:$6 &&
    464        set +f &&
    465        test "$old" = "$new" &&
    466        $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
    467     then
    468       rm -f "$dsttmp"
    469     else
    470       # Rename the file to the real destination.
    471       $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
    472 
    473       # The rename failed, perhaps because mv can't rename something else
    474       # to itself, or perhaps because mv is so ancient that it does not
    475       # support -f.
    476       {
    477         # Now remove or move aside any old file at destination location.
    478         # We try this two ways since rm can't unlink itself on some
    479         # systems and the destination file might be busy for other
    480         # reasons.  In this case, the final cleanup might fail but the new
    481         # file should still install successfully.
    482         {
    483           test ! -f "$dst" ||
    484           $doit $rmcmd -f "$dst" 2>/dev/null ||
    485           { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
    486             { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
    487           } ||
    488           { echo "$0: cannot unlink or rename $dst" >&2
    489             (exit 1); exit 1
    490           }
    491         } &&
    492 
    493         # Now rename the file to the real destination.
    494         $doit $mvcmd "$dsttmp" "$dst"
    495       }
    496     fi || exit 1
    497 
    498     trap '' 0
    499   fi
    500 done
    501 
    502 # Local variables:
    503 # eval: (add-hook 'write-file-hooks 'time-stamp)
    504 # time-stamp-start: "scriptversion="
    505 # time-stamp-format: "%:y-%02m-%02d.%02H"
    506 # time-stamp-time-zone: "UTC"
    507 # time-stamp-end: "; # UTC"
    508 # End:
    509