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      1 #!/bin/sh
      2 # install - install a program, script, or datafile
      3 
      4 scriptversion=2013-12-25.23; # 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 $umask in
    322           *[123567][0-7][0-7])
    323             # POSIX mkdir -p sets u+wx bits regardless of umask, which
    324             # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
    325             ;;
    326           *)
    327             tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
    328             trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
    329 
    330             if (umask $mkdir_umask &&
    331                 exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
    332             then
    333               if test -z "$dir_arg" || {
    334                    # Check for POSIX incompatibilities with -m.
    335                    # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
    336                    # other-writable bit of parent directory when it shouldn't.
    337                    # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
    338                    ls_ld_tmpdir=`ls -ld "$tmpdir"`
    339                    case $ls_ld_tmpdir in
    340                      d????-?r-*) different_mode=700;;
    341                      d????-?--*) different_mode=755;;
    342                      *) false;;
    343                    esac &&
    344                    $mkdirprog -m$different_mode -p -- "$tmpdir" && {
    345                      ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
    346                      test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
    347                    }
    348                  }
    349               then posix_mkdir=:
    350               fi
    351               rmdir "$tmpdir/d" "$tmpdir"
    352             else
    353               # Remove any dirs left behind by ancient mkdir implementations.
    354               rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
    355             fi
    356             trap '' 0;;
    357         esac;;
    358     esac
    359 
    360     if
    361       $posix_mkdir && (
    362         umask $mkdir_umask &&
    363         $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
    364       )
    365     then :
    366     else
    367 
    368       # The umask is ridiculous, or mkdir does not conform to POSIX,
    369       # or it failed possibly due to a race condition.  Create the
    370       # directory the slow way, step by step, checking for races as we go.
    371 
    372       case $dstdir in
    373         /*) prefix='/';;
    374         [-=\(\)!]*) prefix='./';;
    375         *)  prefix='';;
    376       esac
    377 
    378       oIFS=$IFS
    379       IFS=/
    380       set -f
    381       set fnord $dstdir
    382       shift
    383       set +f
    384       IFS=$oIFS
    385 
    386       prefixes=
    387 
    388       for d
    389       do
    390         test X"$d" = X && continue
    391 
    392         prefix=$prefix$d
    393         if test -d "$prefix"; then
    394           prefixes=
    395         else
    396           if $posix_mkdir; then
    397             (umask=$mkdir_umask &&
    398              $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
    399             # Don't fail if two instances are running concurrently.
    400             test -d "$prefix" || exit 1
    401           else
    402             case $prefix in
    403               *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
    404               *) qprefix=$prefix;;
    405             esac
    406             prefixes="$prefixes '$qprefix'"
    407           fi
    408         fi
    409         prefix=$prefix/
    410       done
    411 
    412       if test -n "$prefixes"; then
    413         # Don't fail if two instances are running concurrently.
    414         (umask $mkdir_umask &&
    415          eval "\$doit_exec \$mkdirprog $prefixes") ||
    416           test -d "$dstdir" || exit 1
    417         obsolete_mkdir_used=true
    418       fi
    419     fi
    420   fi
    421 
    422   if test -n "$dir_arg"; then
    423     { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
    424     { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
    425     { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
    426       test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
    427   else
    428 
    429     # Make a couple of temp file names in the proper directory.
    430     dsttmp=$dstdir/_inst.$$_
    431     rmtmp=$dstdir/_rm.$$_
    432 
    433     # Trap to clean up those temp files at exit.
    434     trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
    435 
    436     # Copy the file name to the temp name.
    437     (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
    438 
    439     # and set any options; do chmod last to preserve setuid bits.
    440     #
    441     # If any of these fail, we abort the whole thing.  If we want to
    442     # ignore errors from any of these, just make sure not to ignore
    443     # errors from the above "$doit $cpprog $src $dsttmp" command.
    444     #
    445     { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
    446     { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
    447     { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
    448     { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
    449 
    450     # If -C, don't bother to copy if it wouldn't change the file.
    451     if $copy_on_change &&
    452        old=`LC_ALL=C ls -dlL "$dst"     2>/dev/null` &&
    453        new=`LC_ALL=C ls -dlL "$dsttmp"  2>/dev/null` &&
    454        set -f &&
    455        set X $old && old=:$2:$4:$5:$6 &&
    456        set X $new && new=:$2:$4:$5:$6 &&
    457        set +f &&
    458        test "$old" = "$new" &&
    459        $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
    460     then
    461       rm -f "$dsttmp"
    462     else
    463       # Rename the file to the real destination.
    464       $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
    465 
    466       # The rename failed, perhaps because mv can't rename something else
    467       # to itself, or perhaps because mv is so ancient that it does not
    468       # support -f.
    469       {
    470         # Now remove or move aside any old file at destination location.
    471         # We try this two ways since rm can't unlink itself on some
    472         # systems and the destination file might be busy for other
    473         # reasons.  In this case, the final cleanup might fail but the new
    474         # file should still install successfully.
    475         {
    476           test ! -f "$dst" ||
    477           $doit $rmcmd -f "$dst" 2>/dev/null ||
    478           { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
    479             { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
    480           } ||
    481           { echo "$0: cannot unlink or rename $dst" >&2
    482             (exit 1); exit 1
    483           }
    484         } &&
    485 
    486         # Now rename the file to the real destination.
    487         $doit $mvcmd "$dsttmp" "$dst"
    488       }
    489     fi || exit 1
    490 
    491     trap '' 0
    492   fi
    493 done
    494 
    495 # Local variables:
    496 # eval: (add-hook 'write-file-hooks 'time-stamp)
    497 # time-stamp-start: "scriptversion="
    498 # time-stamp-format: "%:y-%02m-%02d.%02H"
    499 # time-stamp-time-zone: "UTC"
    500 # time-stamp-end: "; # UTC"
    501 # End:
    502