lib/install-sh

   1 #!/bin/sh
   2 # install - install a program, script, or datafile
   3
   4 scriptversion=2006-05-11.20
   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 nl='
  45 '
  46 IFS=" ""        $nl"
  47
  48 # set DOITPROG to echo to test this script
  49
  50 # Don't use :- since 4.3BSD and earlier shells don't like it.
  51 doit="${DOITPROG-}"
  52 if test -z "$doit"; then
  53   doit_exec=exec
  54 else
  55   doit_exec=$doit
  56 fi
  57
  58 # Put in absolute file names if you don't have them in your path;
  59 # or use environment vars.
  60
  61 mvprog="${MVPROG-mv}"
  62 cpprog="${CPPROG-cp}"
  63 chmodprog="${CHMODPROG-chmod}"
  64 chownprog="${CHOWNPROG-chown}"
  65 chgrpprog="${CHGRPPROG-chgrp}"
  66 stripprog="${STRIPPROG-strip}"
  67 rmprog="${RMPROG-rm}"
  68 mkdirprog="${MKDIRPROG-mkdir}"
  69
  70 posix_glob=
  71 posix_mkdir=
  72
  73 # Desired mode of installed file.
  74 mode=0755
  75
  76 chmodcmd=$chmodprog
  77 chowncmd=
  78 chgrpcmd=
  79 stripcmd=
  80 rmcmd="$rmprog -f"
  81 mvcmd="$mvprog"
  82 src=
  83 dst=
  84 dir_arg=
  85 dstarg=
  86 no_target_directory=
  87
  88 usage="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 -c         (ignored)
  99 -d         create directories instead of installing files.
 100 -g GROUP   $chgrpprog installed files to GROUP.
 101 -m MODE    $chmodprog installed files to MODE.
 102 -o USER    $chownprog installed files to USER.
 103 -s         $stripprog installed files.
 104 -t DIRECTORY  install into DIRECTORY.
 105 -T         report an error if DSTFILE is a directory.
 106 --help     display this help and exit.
 107 --version  display version info and exit.
 108
 109 Environment variables override the default commands:
 110   CHGRPPROG CHMODPROG CHOWNPROG CPPROG MKDIRPROG MVPROG RMPROG STRIPPROG
 111 "
 112
 113 while test $# -ne 0; do
 114   case $1 in
 115     -c) shift
 116         continue;;
 117
 118     -d) dir_arg=true
 119         shift
 120         continue;;
 121
 122     -g) chgrpcmd="$chgrpprog $2"
 123         shift
 124         shift
 125         continue;;
 126
 127     --help) echo "$usage"; exit $?;;
 128
 129     -m) mode=$2
 130         shift
 131         shift
 132         case $mode in
 133           *' '* | *'    '* | *'
 134 '*        | *'*'* | *'?'* | *'['*)
 135             echo "$0: invalid mode: $mode" >&2
 136             exit 1;;
 137         esac
 138         continue;;
 139
 140     -o) chowncmd="$chownprog $2"
 141         shift
 142         shift
 143         continue;;
 144
 145     -s) stripcmd=$stripprog
 146         shift
 147         continue;;
 148
 149     -t) dstarg=$2
 150         shift
 151         shift
 152         continue;;
 153
 154     -T) no_target_directory=true
 155         shift
 156         continue;;
 157
 158     --version) echo "$0 $scriptversion"; exit $?;;
 159
 160     --) shift
 161         break;;
 162
 163     -*) echo "$0: invalid option: $1" >&2
 164         exit 1;;
 165
 166     *)  break;;
 167   esac
 168 done
 169
 170 if test $# -ne 0 && test -z "$dir_arg$dstarg"; then
 171   # When -d is used, all remaining arguments are directories to create.
 172   # When -t is used, the destination is already specified.
 173   # Otherwise, the last argument is the destination.  Remove it from $@.
 174   for arg
 175   do
 176     if test -n "$dstarg"; then
 177       # $@ is not empty: it contains at least $arg.
 178       set fnord "$@" "$dstarg"
 179       shift # fnord
 180     fi
 181     shift # arg
 182     dstarg=$arg
 183   done
 184 fi
 185
 186 if test $# -eq 0; then
 187   if test -z "$dir_arg"; then
 188     echo "$0: no input file specified." >&2
 189     exit 1
 190   fi
 191   # It's OK to call `install-sh -d' without argument.
 192   # This can happen when creating conditional directories.
 193   exit 0
 194 fi
 195
 196 if test -z "$dir_arg"; then
 197   trap '(exit $?); exit' 1 2 13 15
 198
 199   # Set umask so as not to create temps with too-generous modes.
 200   # However, 'strip' requires both read and write access to temps.
 201   case $mode in
 202     # Optimize common cases.
 203     *644) cp_umask=133;;
 204     *755) cp_umask=22;;
 205
 206     *[0-7])
 207       if test -z "$stripcmd"; then
 208         u_plus_rw=
 209       else
 210         u_plus_rw='% 200'
 211       fi
 212       cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
 213     *)
 214       if test -z "$stripcmd"; then
 215         u_plus_rw=
 216       else
 217         u_plus_rw=,u+rw
 218       fi
 219       cp_umask=$mode$u_plus_rw;;
 220   esac
 221 fi
 222
 223 for src
 224 do
 225   # Protect names starting with `-'.
 226   case $src in
 227     -*) src=./$src ;;
 228   esac
 229
 230   if test -n "$dir_arg"; then
 231     dst=$src
 232     dstdir=$dst
 233     test -d "$dstdir"
 234     dstdir_status=$?
 235   else
 236
 237     # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
 238     # might cause directories to be created, which would be especially bad
 239     # if $src (and thus $dsttmp) contains '*'.
 240     if test ! -f "$src" && test ! -d "$src"; then
 241       echo "$0: $src does not exist." >&2
 242       exit 1
 243     fi
 244
 245     if test -z "$dstarg"; then
 246       echo "$0: no destination specified." >&2
 247       exit 1
 248     fi
 249
 250     dst=$dstarg
 251     # Protect names starting with `-'.
 252     case $dst in
 253       -*) dst=./$dst ;;
 254     esac
 255
 256     # If destination is a directory, append the input filename; won't work
 257     # if double slashes aren't ignored.
 258     if test -d "$dst"; then
 259       if test -n "$no_target_directory"; then
 260         echo "$0: $dstarg: Is a directory" >&2
 261         exit 1
 262       fi
 263       dstdir=$dst
 264       dst=$dstdir/`basename "$src"`
 265       dstdir_status=0
 266     else
 267       # Prefer dirname, but fall back on a substitute if dirname fails.
 268       dstdir=`
 269         (dirname "$dst") 2>/dev/null ||
 270         expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
 271              X"$dst" : 'X\(//\)[^/]' \| \
 272              X"$dst" : 'X\(//\)$' \| \
 273              X"$dst" : 'X\(/\)' \| . 2>/dev/null ||
 274         echo X"$dst" |
 275             sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 276                    s//\1/
 277                    q
 278                  }
 279                  /^X\(\/\/\)[^/].*/{
 280                    s//\1/
 281                    q
 282                  }
 283                  /^X\(\/\/\)$/{
 284                    s//\1/
 285                    q
 286                  }
 287                  /^X\(\/\).*/{
 288                    s//\1/
 289                    q
 290                  }
 291                  s/.*/./; q'
 292       `
 293
 294       test -d "$dstdir"
 295       dstdir_status=$?
 296     fi
 297   fi
 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 $umask in
 330           *[123567][0-7][0-7])
 331             # POSIX mkdir -p sets u+wx bits regardless of umask, which
 332             # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
 333             ;;
 334           *)
 335             tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
 336             trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
 337
 338             if (umask $mkdir_umask &&
 339                 exec $mkdirprog $mkdir_mode -p -- / "$tmpdir/d") >/dev/null 2>&1
 340             then
 341               # Check for bugs in HP-UX 11.23 and IRIX 6.5 mkdir.
 342               case `ls -ld "$tmpdir"` in
 343                 d????-??-* ) posix_mkdir=:;;
 344               esac
 345               rmdir "$tmpdir/d" "$tmpdir"
 346             else
 347               # Remove any dirs left behind by ancient mkdir implementations.
 348               rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
 349             fi
 350             trap '' 0;;
 351         esac;;
 352     esac
 353
 354     if
 355       $posix_mkdir && (
 356         umask $mkdir_umask &&
 357         $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
 358       )
 359     then :
 360     else
 361
 362       # The umask is ridiculous, or mkdir does not conform to POSIX,
 363       # or it failed possibly due to a race condition.  Create the
 364       # directory the slow way, step by step, checking for races as we go.
 365
 366       case $dstdir in
 367         /*) prefix=/ ;;
 368         -*) prefix=./ ;;
 369         *)  prefix= ;;
 370       esac
 371
 372       case $posix_glob in
 373         '')
 374           if (set -f) 2>/dev/null; then
 375             posix_glob=true
 376           else
 377             posix_glob=false
 378           fi ;;
 379       esac
 380
 381       oIFS=$IFS
 382       IFS=/
 383       $posix_glob && set -f
 384       set fnord $dstdir
 385       shift
 386       $posix_glob && set +f
 387       IFS=$oIFS
 388
 389       prefixes=
 390
 391       for d
 392       do
 393         test -z "$d" && continue
 394
 395         prefix=$prefix$d
 396         if test -d "$prefix"; then
 397           prefixes=
 398         else
 399           if $posix_mkdir; then
 400             (umask=$mkdir_umask &&
 401              $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
 402             # Don't fail if two instances are running concurrently.
 403             test -d "$prefix" || exit 1
 404           else
 405             case $prefix in
 406               *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
 407               *) qprefix=$prefix;;
 408             esac
 409             prefixes="$prefixes '$qprefix'"
 410           fi
 411         fi
 412         prefix=$prefix/
 413       done
 414
 415       if test -n "$prefixes"; then
 416         # Don't fail if two instances are running concurrently.
 417         (umask $mkdir_umask &&
 418          eval "\$doit_exec \$mkdirprog $prefixes") ||
 419           test -d "$dstdir" || exit 1
 420         obsolete_mkdir_used=true
 421       fi
 422     fi
 423   fi
 424
 425   if test -n "$dir_arg"; then
 426     { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
 427     { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
 428     { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
 429       test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
 430   else
 431
 432     # Make a couple of temp file names in the proper directory.
 433     dsttmp=$dstdir/_inst.$$_
 434     rmtmp=$dstdir/_rm.$$_
 435
 436     # Trap to clean up those temp files at exit.
 437     trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
 438
 439     # Copy the file name to the temp name.
 440     (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
 441
 442     # and set any options; do chmod last to preserve setuid bits.
 443     #
 444     # If any of these fail, we abort the whole thing.  If we want to
 445     # ignore errors from any of these, just make sure not to ignore
 446     # errors from the above "$doit $cpprog $src $dsttmp" command.
 447     #
 448     { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } \
 449       && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } \
 450       && { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } \
 451       && { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
 452
 453     # Now rename the file to the real destination.
 454     { $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null \
 455       || {
 456            # The rename failed, perhaps because mv can't rename something else
 457            # to itself, or perhaps because mv is so ancient that it does not
 458            # support -f.
 459
 460            # Now remove or move aside any old file at destination location.
 461            # We try this two ways since rm can't unlink itself on some
 462            # systems and the destination file might be busy for other
 463            # reasons.  In this case, the final cleanup might fail but the new
 464            # file should still install successfully.
 465            {
 466              if test -f "$dst"; then
 467                $doit $rmcmd -f "$dst" 2>/dev/null \
 468                || { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null \
 469                      && { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }; }\
 470                || {
 471                  echo "$0: cannot unlink or rename $dst" >&2
 472                  (exit 1); exit 1
 473                }
 474              else
 475                :
 476              fi
 477            } &&
 478
 479            # Now rename the file to the real destination.
 480            $doit $mvcmd "$dsttmp" "$dst"
 481          }
 482     } || exit 1
 483
 484     trap '' 0
 485   fi
 486 done
 487
 488 # Local variables:
 489 # eval: (add-hook 'write-file-hooks 'time-stamp)
 490 # time-stamp-start: "scriptversion="
 491 # time-stamp-format: "%:y-%02m-%02d.%02H"
 492 # time-stamp-end: "$"
 493 # End: