build-aux/install-sh

   1 #!/bin/sh
   2 # install - install a program, script, or datafile
   3
   4 scriptversion=2010-02-06.18; # 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 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 chgrpprog=${CHGRPPROG-chgrp}
  62 chmodprog=${CHMODPROG-chmod}
  63 chownprog=${CHOWNPROG-chown}
  64 cmpprog=${CMPPROG-cmp}
  65 cpprog=${CPPROG-cp}
  66 mkdirprog=${MKDIRPROG-mkdir}
  67 mvprog=${MVPROG-mv}
  68 rmprog=${RMPROG-rm}
  69 stripprog=${STRIPPROG-strip}
  70
  71 posix_glob='?'
  72 initialize_posix_glob='
  73   test "$posix_glob" != "?" || {
  74     if (set -f) 2>/dev/null; then
  75       posix_glob=
  76     else
  77       posix_glob=:
  78     fi
  79   }
  80 '
  81
  82 posix_mkdir=
  83
  84 # Desired mode of installed file.
  85 mode=0755
  86
  87 chgrpcmd=
  88 chmodcmd=$chmodprog
  89 chowncmd=
  90 mvcmd=$mvprog
  91 rmcmd="$rmprog -f"
  92 stripcmd=
  93
  94 src=
  95 dst=
  96 dir_arg=
  97 dst_arg=
  98
  99 copy_on_change=false
 100 no_target_directory=
 101
 102 usage="\
 103 Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
 104    or: $0 [OPTION]... SRCFILES... DIRECTORY
 105    or: $0 [OPTION]... -t DIRECTORY SRCFILES...
 106    or: $0 [OPTION]... -d DIRECTORIES...
 107
 108 In the 1st form, copy SRCFILE to DSTFILE.
 109 In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
 110 In the 4th, create DIRECTORIES.
 111
 112 Options:
 113      --help     display this help and exit.
 114      --version  display version info and exit.
 115
 116   -c            (ignored)
 117   -C            install only if different (preserve the last data modification time)
 118   -d            create directories instead of installing files.
 119   -g GROUP      $chgrpprog installed files to GROUP.
 120   -m MODE       $chmodprog installed files to MODE.
 121   -o USER       $chownprog installed files to USER.
 122   -s            $stripprog installed files.
 123   -t DIRECTORY  install into DIRECTORY.
 124   -T            report an error if DSTFILE is a directory.
 125
 126 Environment variables override the default commands:
 127   CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
 128   RMPROG STRIPPROG
 129 "
 130
 131 while test $# -ne 0; do
 132   case $1 in
 133     -c) ;;
 134
 135     -C) copy_on_change=true;;
 136
 137     -d) dir_arg=true;;
 138
 139     -g) chgrpcmd="$chgrpprog $2"
 140         shift;;
 141
 142     --help) echo "$usage"; exit $?;;
 143
 144     -m) mode=$2
 145         case $mode in
 146           *' '* | *'    '* | *'
 147 '*        | *'*'* | *'?'* | *'['*)
 148             echo "$0: invalid mode: $mode" >&2
 149             exit 1;;
 150         esac
 151         shift;;
 152
 153     -o) chowncmd="$chownprog $2"
 154         shift;;
 155
 156     -s) stripcmd=$stripprog;;
 157
 158     -t) dst_arg=$2
 159         shift;;
 160
 161     -T) no_target_directory=true;;
 162
 163     --version) echo "$0 $scriptversion"; exit $?;;
 164
 165     --) shift
 166         break;;
 167
 168     -*) echo "$0: invalid option: $1" >&2
 169         exit 1;;
 170
 171     *)  break;;
 172   esac
 173   shift
 174 done
 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   done
 190 fi
 191
 192 if test $# -eq 0; then
 193   if test -z "$dir_arg"; then
 194     echo "$0: no input file specified." >&2
 195     exit 1
 196   fi
 197   # It's OK to call `install-sh -d' without argument.
 198   # This can happen when creating conditional directories.
 199   exit 0
 200 fi
 201
 202 if test -z "$dir_arg"; then
 203   do_exit='(exit $ret); exit $ret'
 204   trap "ret=129; $do_exit" 1
 205   trap "ret=130; $do_exit" 2
 206   trap "ret=141; $do_exit" 13
 207   trap "ret=143; $do_exit" 15
 208
 209   # Set umask so as not to create temps with too-generous modes.
 210   # However, 'strip' requires both read and write access to temps.
 211   case $mode in
 212     # Optimize common cases.
 213     *644) cp_umask=133;;
 214     *755) cp_umask=22;;
 215
 216     *[0-7])
 217       if test -z "$stripcmd"; then
 218         u_plus_rw=
 219       else
 220         u_plus_rw='% 200'
 221       fi
 222       cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
 223     *)
 224       if test -z "$stripcmd"; then
 225         u_plus_rw=
 226       else
 227         u_plus_rw=,u+rw
 228       fi
 229       cp_umask=$mode$u_plus_rw;;
 230   esac
 231 fi
 232
 233 for src
 234 do
 235   # Protect names starting with `-'.
 236   case $src in
 237     -*) src=./$src;;
 238   esac
 239
 240   if test -n "$dir_arg"; then
 241     dst=$src
 242     dstdir=$dst
 243     test -d "$dstdir"
 244     dstdir_status=$?
 245   else
 246
 247     # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
 248     # might cause directories to be created, which would be especially bad
 249     # if $src (and thus $dsttmp) contains '*'.
 250     if test ! -f "$src" && test ! -d "$src"; then
 251       echo "$0: $src does not exist." >&2
 252       exit 1
 253     fi
 254
 255     if test -z "$dst_arg"; then
 256       echo "$0: no destination specified." >&2
 257       exit 1
 258     fi
 259
 260     dst=$dst_arg
 261     # Protect names starting with `-'.
 262     case $dst in
 263       -*) dst=./$dst;;
 264     esac
 265
 266     # If destination is a directory, append the input filename; won't work
 267     # if double slashes aren't ignored.
 268     if test -d "$dst"; then
 269       if test -n "$no_target_directory"; then
 270         echo "$0: $dst_arg: Is a directory" >&2
 271         exit 1
 272       fi
 273       dstdir=$dst
 274       dst=$dstdir/`basename "$src"`
 275       dstdir_status=0
 276     else
 277       # Prefer dirname, but fall back on a substitute if dirname fails.
 278       dstdir=`
 279         (dirname "$dst") 2>/dev/null ||
 280         expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
 281              X"$dst" : 'X\(//\)[^/]' \| \
 282              X"$dst" : 'X\(//\)$' \| \
 283              X"$dst" : 'X\(/\)' \| . 2>/dev/null ||
 284         echo X"$dst" |
 285             sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 286                    s//\1/
 287                    q
 288                  }
 289                  /^X\(\/\/\)[^/].*/{
 290                    s//\1/
 291                    q
 292                  }
 293                  /^X\(\/\/\)$/{
 294                    s//\1/
 295                    q
 296                  }
 297                  /^X\(\/\).*/{
 298                    s//\1/
 299                    q
 300                  }
 301                  s/.*/./; q'
 302       `
 303
 304       test -d "$dstdir"
 305       dstdir_status=$?
 306     fi
 307   fi
 308
 309   obsolete_mkdir_used=false
 310
 311   if test $dstdir_status != 0; then
 312     case $posix_mkdir in
 313       '')
 314         # Create intermediate dirs using mode 755 as modified by the umask.
 315         # This is like FreeBSD 'install' as of 1997-10-28.
 316         umask=`umask`
 317         case $stripcmd.$umask in
 318           # Optimize common cases.
 319           *[2367][2367]) mkdir_umask=$umask;;
 320           .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
 321
 322           *[0-7])
 323             mkdir_umask=`expr $umask + 22 \
 324               - $umask % 100 % 40 + $umask % 20 \
 325               - $umask % 10 % 4 + $umask % 2
 326             `;;
 327           *) mkdir_umask=$umask,go-w;;
 328         esac
 329
 330         # With -d, create the new directory with the user-specified mode.
 331         # Otherwise, rely on $mkdir_umask.
 332         if test -n "$dir_arg"; then
 333           mkdir_mode=-m$mode
 334         else
 335           mkdir_mode=
 336         fi
 337
 338         posix_mkdir=false
 339         case $umask in
 340           *[123567][0-7][0-7])
 341             # POSIX mkdir -p sets u+wx bits regardless of umask, which
 342             # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
 343             ;;
 344           *)
 345             tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
 346             trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
 347
 348             if (umask $mkdir_umask &&
 349                 exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
 350             then
 351               if test -z "$dir_arg" || {
 352                    # Check for POSIX incompatibilities with -m.
 353                    # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
 354                    # other-writeable bit of parent directory when it shouldn't.
 355                    # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
 356                    ls_ld_tmpdir=`ls -ld "$tmpdir"`
 357                    case $ls_ld_tmpdir in
 358                      d????-?r-*) different_mode=700;;
 359                      d????-?--*) different_mode=755;;
 360                      *) false;;
 361                    esac &&
 362                    $mkdirprog -m$different_mode -p -- "$tmpdir" && {
 363                      ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
 364                      test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
 365                    }
 366                  }
 367               then posix_mkdir=:
 368               fi
 369               rmdir "$tmpdir/d" "$tmpdir"
 370             else
 371               # Remove any dirs left behind by ancient mkdir implementations.
 372               rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
 373             fi
 374             trap '' 0;;
 375         esac;;
 376     esac
 377
 378     if
 379       $posix_mkdir && (
 380         umask $mkdir_umask &&
 381         $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
 382       )
 383     then :
 384     else
 385
 386       # The umask is ridiculous, or mkdir does not conform to POSIX,
 387       # or it failed possibly due to a race condition.  Create the
 388       # directory the slow way, step by step, checking for races as we go.
 389
 390       case $dstdir in
 391         /*) prefix='/';;
 392         -*) prefix='./';;
 393         *)  prefix='';;
 394       esac
 395
 396       eval "$initialize_posix_glob"
 397
 398       oIFS=$IFS
 399       IFS=/
 400       $posix_glob set -f
 401       set fnord $dstdir
 402       shift
 403       $posix_glob set +f
 404       IFS=$oIFS
 405
 406       prefixes=
 407
 408       for d
 409       do
 410         test -z "$d" && continue
 411
 412         prefix=$prefix$d
 413         if test -d "$prefix"; then
 414           prefixes=
 415         else
 416           if $posix_mkdir; then
 417             (umask=$mkdir_umask &&
 418              $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
 419             # Don't fail if two instances are running concurrently.
 420             test -d "$prefix" || exit 1
 421           else
 422             case $prefix in
 423               *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
 424               *) qprefix=$prefix;;
 425             esac
 426             prefixes="$prefixes '$qprefix'"
 427           fi
 428         fi
 429         prefix=$prefix/
 430       done
 431
 432       if test -n "$prefixes"; then
 433         # Don't fail if two instances are running concurrently.
 434         (umask $mkdir_umask &&
 435          eval "\$doit_exec \$mkdirprog $prefixes") ||
 436           test -d "$dstdir" || exit 1
 437         obsolete_mkdir_used=true
 438       fi
 439     fi
 440   fi
 441
 442   if test -n "$dir_arg"; then
 443     { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
 444     { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
 445     { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
 446       test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
 447   else
 448
 449     # Make a couple of temp file names in the proper directory.
 450     dsttmp=$dstdir/_inst.$$_
 451     rmtmp=$dstdir/_rm.$$_
 452
 453     # Trap to clean up those temp files at exit.
 454     trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
 455
 456     # Copy the file name to the temp name.
 457     (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
 458
 459     # and set any options; do chmod last to preserve setuid bits.
 460     #
 461     # If any of these fail, we abort the whole thing.  If we want to
 462     # ignore errors from any of these, just make sure not to ignore
 463     # errors from the above "$doit $cpprog $src $dsttmp" command.
 464     #
 465     { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
 466     { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
 467     { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
 468     { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
 469
 470     # If -C, don't bother to copy if it wouldn't change the file.
 471     if $copy_on_change &&
 472        old=`LC_ALL=C ls -dlL "$dst"     2>/dev/null` &&
 473        new=`LC_ALL=C ls -dlL "$dsttmp"  2>/dev/null` &&
 474
 475        eval "$initialize_posix_glob" &&
 476        $posix_glob set -f &&
 477        set X $old && old=:$2:$4:$5:$6 &&
 478        set X $new && new=:$2:$4:$5:$6 &&
 479        $posix_glob set +f &&
 480
 481        test "$old" = "$new" &&
 482        $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
 483     then
 484       rm -f "$dsttmp"
 485     else
 486       # Rename the file to the real destination.
 487       $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
 488
 489       # The rename failed, perhaps because mv can't rename something else
 490       # to itself, or perhaps because mv is so ancient that it does not
 491       # support -f.
 492       {
 493         # Now remove or move aside any old file at destination location.
 494         # We try this two ways since rm can't unlink itself on some
 495         # systems and the destination file might be busy for other
 496         # reasons.  In this case, the final cleanup might fail but the new
 497         # file should still install successfully.
 498         {
 499           test ! -f "$dst" ||
 500           $doit $rmcmd -f "$dst" 2>/dev/null ||
 501           { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
 502             { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
 503           } ||
 504           { echo "$0: cannot unlink or rename $dst" >&2
 505             (exit 1); exit 1
 506           }
 507         } &&
 508
 509         # Now rename the file to the real destination.
 510         $doit $mvcmd "$dsttmp" "$dst"
 511       }
 512     fi || exit 1
 513
 514     trap '' 0
 515   fi
 516 done
 517
 518 # Local variables:
 519 # eval: (add-hook 'write-file-hooks 'time-stamp)
 520 # time-stamp-start: "scriptversion="
 521 # time-stamp-format: "%:y-%02m-%02d.%02H"
 522 # time-stamp-time-zone: "UTC"
 523 # time-stamp-end: "; # UTC"
 524 # End: