config/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.  It can only install one file at a time, a restriction
  43 # shared with many OS's install programs.
  44
  45 nl='
  46 '
  47 IFS=" ""        $nl"
  48
  49 # set DOITPROG to echo to test this script
  50
  51 # Don't use :- since 4.3BSD and earlier shells don't like it.
  52 doit="${DOITPROG-}"
  53
  54 # Put in absolute file names if you don't have them in your path;
  55 # or use environment vars.
  56
  57 mvprog="${MVPROG-mv}"
  58 cpprog="${CPPROG-cp}"
  59 chmodprog="${CHMODPROG-chmod}"
  60 chownprog="${CHOWNPROG-chown}"
  61 chgrpprog="${CHGRPPROG-chgrp}"
  62 stripprog="${STRIPPROG-strip}"
  63 rmprog="${RMPROG-rm}"
  64 mkdirprog="${MKDIRPROG-mkdir}"
  65
  66 posix_glob=
  67 posix_mkdir=
  68
  69 # Symbolic mode for testing mkdir with directories.
  70 # It is the same as 755, but also tests that "u+" works.
  71 test_mode=u=rwx,g=rx,o=rx,u+wx
  72
  73 # Desired mode of installed file.
  74 mode=0755
  75
  76 # Desired mode of newly created intermediate directories.
  77 # It is empty if not known yet.
  78 intermediate_mode=
  79
  80 chmodcmd=$chmodprog
  81 chowncmd=
  82 chgrpcmd=
  83 stripcmd=
  84 rmcmd="$rmprog -f"
  85 mvcmd="$mvprog"
  86 src=
  87 dst=
  88 dir_arg=
  89 dstarg=
  90 no_target_directory=
  91
  92 usage="Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
  93    or: $0 [OPTION]... SRCFILES... DIRECTORY
  94    or: $0 [OPTION]... -t DIRECTORY SRCFILES...
  95    or: $0 [OPTION]... -d DIRECTORIES...
  96
  97 In the 1st form, copy SRCFILE to DSTFILE.
  98 In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
  99 In the 4th, create DIRECTORIES.
 100
 101 Options:
 102 -c         (ignored)
 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 --help     display this help and exit.
 111 --version  display version info and exit.
 112
 113 Environment variables override the default commands:
 114   CHGRPPROG CHMODPROG CHOWNPROG CPPROG MKDIRPROG MVPROG RMPROG STRIPPROG
 115 "
 116
 117 while test $# -ne 0; do
 118   case $1 in
 119     -c) shift
 120         continue;;
 121
 122     -d) dir_arg=true
 123         shift
 124         continue;;
 125
 126     -g) chgrpcmd="$chgrpprog $2"
 127         shift
 128         shift
 129         continue;;
 130
 131     --help) echo "$usage"; exit $?;;
 132
 133     -m) mode=$2
 134         shift
 135         shift
 136         continue;;
 137
 138     -o) chowncmd="$chownprog $2"
 139         shift
 140         shift
 141         continue;;
 142
 143     -s) stripcmd=$stripprog
 144         shift
 145         continue;;
 146
 147     -t) dstarg=$2
 148         shift
 149         shift
 150         continue;;
 151
 152     -T) no_target_directory=true
 153         shift
 154         continue;;
 155
 156     --version) echo "$0 $scriptversion"; exit $?;;
 157
 158     --) shift
 159         break;;
 160
 161     -*) echo "$0: invalid option: $1" >&2
 162         exit 1;;
 163
 164     *)  break;;
 165   esac
 166 done
 167
 168 if test $# -ne 0 && test -z "$dir_arg$dstarg"; then
 169   # When -d is used, all remaining arguments are directories to create.
 170   # When -t is used, the destination is already specified.
 171   # Otherwise, the last argument is the destination.  Remove it from $@.
 172   for arg
 173   do
 174     if test -n "$dstarg"; then
 175       # $@ is not empty: it contains at least $arg.
 176       set fnord "$@" "$dstarg"
 177       shift # fnord
 178     fi
 179     shift # arg
 180     dstarg=$arg
 181   done
 182 fi
 183
 184 if test $# -eq 0; then
 185   if test -z "$dir_arg"; then
 186     echo "$0: no input file specified." >&2
 187     exit 1
 188   fi
 189   # It's OK to call `install-sh -d' without argument.
 190   # This can happen when creating conditional directories.
 191   exit 0
 192 fi
 193
 194 test -n "$dir_arg" || trap '(exit $?); exit' 1 2 13 15
 195
 196 for src
 197 do
 198   # Protect names starting with `-'.
 199   case $src in
 200     -*) src=./$src ;;
 201   esac
 202
 203   if test -n "$dir_arg"; then
 204     dst=$src
 205     dstdir=$dst
 206     test -d "$dstdir"
 207     dstdir_status=$?
 208   else
 209
 210     # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
 211     # might cause directories to be created, which would be especially bad
 212     # if $src (and thus $dsttmp) contains '*'.
 213     if test ! -f "$src" && test ! -d "$src"; then
 214       echo "$0: $src does not exist." >&2
 215       exit 1
 216     fi
 217
 218     if test -z "$dstarg"; then
 219       echo "$0: no destination specified." >&2
 220       exit 1
 221     fi
 222
 223     dst=$dstarg
 224     # Protect names starting with `-'.
 225     case $dst in
 226       -*) dst=./$dst ;;
 227     esac
 228
 229     # If destination is a directory, append the input filename; won't work
 230     # if double slashes aren't ignored.
 231     if test -d "$dst"; then
 232       if test -n "$no_target_directory"; then
 233         echo "$0: $dstarg: Is a directory" >&2
 234         exit 1
 235       fi
 236       dstdir=$dst
 237       dst=$dstdir/`basename "$src"`
 238       dstdir_status=0
 239     else
 240       # Prefer dirname, but fall back on a substitute if dirname fails.
 241       dstdir=`
 242         (dirname "$dst") 2>/dev/null ||
 243         expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
 244              X"$dst" : 'X\(//\)[^/]' \| \
 245              X"$dst" : 'X\(//\)$' \| \
 246              X"$dst" : 'X\(/\)' \| . 2>/dev/null ||
 247         echo X"$dst" |
 248             sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 249                    s//\1/
 250                    q
 251                  }
 252                  /^X\(\/\/\)[^/].*/{
 253                    s//\1/
 254                    q
 255                  }
 256                  /^X\(\/\/\)$/{
 257                    s//\1/
 258                    q
 259                  }
 260                  /^X\(\/\).*/{
 261                    s//\1/
 262                    q
 263                  }
 264                  s/.*/./; q'
 265       `
 266
 267       test -d "$dstdir"
 268       dstdir_status=$?
 269     fi
 270   fi
 271
 272   obsolete_mkdir_used=false
 273
 274   if test $dstdir_status != 0; then
 275     case $posix_mkdir in
 276       '')
 277         posix_mkdir=false
 278         if $mkdirprog -m $test_mode -p -- / >/dev/null 2>&1; then
 279           posix_mkdir=true
 280         else
 281           # Remove any dirs left behind by ancient mkdir implementations.
 282           rmdir ./-m "$test_mode" ./-p ./-- 2>/dev/null
 283         fi ;;
 284     esac
 285
 286     if
 287       $posix_mkdir && {
 288
 289         # With -d, create the new directory with the user-specified mode.
 290         # Otherwise, create it using the same intermediate mode that
 291         # mkdir -p would use when creating intermediate directories.
 292         # POSIX says that this mode is "$(umask -S),u+wx", so use that
 293         # if umask -S works.
 294
 295         if test -n "$dir_arg"; then
 296           mkdir_mode=$mode
 297         else
 298           case $intermediate_mode in
 299             '')
 300               if umask_S=`(umask -S) 2>/dev/null`; then
 301                 intermediate_mode=$umask_S,u+wx
 302               else
 303                 intermediate_mode=$test_mode
 304               fi ;;
 305           esac
 306           mkdir_mode=$intermediate_mode
 307         fi
 308
 309         $mkdirprog -m "$mkdir_mode" -p -- "$dstdir"
 310       }
 311     then :
 312     else
 313
 314       # mkdir does not conform to POSIX, or it failed possibly due to
 315       # a race condition.  Create the directory the slow way, step by
 316       # step, checking for races as we go.
 317
 318       case $dstdir in
 319         /*) prefix=/ ;;
 320         -*) prefix=./ ;;
 321         *)  prefix= ;;
 322       esac
 323
 324       case $posix_glob in
 325         '')
 326           if (set -f) 2>/dev/null; then
 327             posix_glob=true
 328           else
 329             posix_glob=false
 330           fi ;;
 331       esac
 332
 333       oIFS=$IFS
 334       IFS=/
 335       $posix_glob && set -f
 336       set fnord $dstdir
 337       shift
 338       $posix_glob && set +f
 339       IFS=$oIFS
 340
 341       prefixes=
 342
 343       for d
 344       do
 345         test -z "$d" && continue
 346
 347         prefix=$prefix$d
 348         if test -d "$prefix"; then
 349           prefixes=
 350         else
 351           if $posix_mkdir; then
 352             $mkdirprog -m "$mkdir_mode" -p -- "$dstdir" && break
 353             # Don't fail if two instances are running concurrently.
 354             test -d "$prefix" || exit 1
 355           else
 356             case $prefix in
 357               *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
 358               *) qprefix=$prefix;;
 359             esac
 360             prefixes="$prefixes '$qprefix'"
 361           fi
 362         fi
 363         prefix=$prefix/
 364       done
 365
 366       if test -n "$prefixes"; then
 367         # Don't fail if two instances are running concurrently.
 368         eval "\$mkdirprog $prefixes" || test -d "$dstdir" || exit 1
 369         obsolete_mkdir_used=true
 370       fi
 371     fi
 372   fi
 373
 374   if test -n "$dir_arg"; then
 375     { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
 376     { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
 377     { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
 378       test -z "$chmodcmd" || $doit $chmodcmd "$mode" "$dst"; } || exit 1
 379   else
 380
 381     # Make a couple of temp file names in the proper directory.
 382     dsttmp=$dstdir/_inst.$$_
 383     rmtmp=$dstdir/_rm.$$_
 384
 385     # Trap to clean up those temp files at exit.
 386     trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
 387
 388     # Copy the file name to the temp name.
 389     $doit $cpprog "$src" "$dsttmp" &&
 390
 391     # and set any options; do chmod last to preserve setuid bits.
 392     #
 393     # If any of these fail, we abort the whole thing.  If we want to
 394     # ignore errors from any of these, just make sure not to ignore
 395     # errors from the above "$doit $cpprog $src $dsttmp" command.
 396     #
 397     { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } \
 398       && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } \
 399       && { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } \
 400       && { test -z "$chmodcmd" || $doit $chmodcmd "$mode" "$dsttmp"; } &&
 401
 402     # Now rename the file to the real destination.
 403     { $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null \
 404       || {
 405            # The rename failed, perhaps because mv can't rename something else
 406            # to itself, or perhaps because mv is so ancient that it does not
 407            # support -f.
 408
 409            # Now remove or move aside any old file at destination location.
 410            # We try this two ways since rm can't unlink itself on some
 411            # systems and the destination file might be busy for other
 412            # reasons.  In this case, the final cleanup might fail but the new
 413            # file should still install successfully.
 414            {
 415              if test -f "$dst"; then
 416                $doit $rmcmd -f "$dst" 2>/dev/null \
 417                || { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null \
 418                      && { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }; }\
 419                || {
 420                  echo "$0: cannot unlink or rename $dst" >&2
 421                  (exit 1); exit 1
 422                }
 423              else
 424                :
 425              fi
 426            } &&
 427
 428            # Now rename the file to the real destination.
 429            $doit $mvcmd "$dsttmp" "$dst"
 430          }
 431     } || exit 1
 432
 433     trap '' 0
 434   fi
 435 done
 436
 437 # Local variables:
 438 # eval: (add-hook 'write-file-hooks 'time-stamp)
 439 # time-stamp-start: "scriptversion="
 440 # time-stamp-format: "%:y-%02m-%02d.%02H"
 441 # time-stamp-end: "$"
 442 # End: