src/png/install-sh

   1 #!/bin/sh
   2 # install - install a program, script, or datafile
   3
   4 scriptversion=2011-11-20.07; # 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         # Protect names problematic for 'test' and other utilities.
 160         case $dst_arg in
 161           -* | [=\(\)!]) dst_arg=./$dst_arg;;
 162         esac
 163         shift;;
 164
 165     -T) no_target_directory=true;;
 166
 167     --version) echo "$0 $scriptversion"; exit $?;;
 168
 169     --) shift
 170         break;;
 171
 172     -*) echo "$0: invalid option: $1" >&2
 173         exit 1;;
 174
 175     *)  break;;
 176   esac
 177   shift
 178 done
 179
 180 if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
 181   # When -d is used, all remaining arguments are directories to create.
 182   # When -t is used, the destination is already specified.
 183   # Otherwise, the last argument is the destination.  Remove it from $@.
 184   for arg
 185   do
 186     if test -n "$dst_arg"; then
 187       # $@ is not empty: it contains at least $arg.
 188       set fnord "$@" "$dst_arg"
 189       shift # fnord
 190     fi
 191     shift # arg
 192     dst_arg=$arg
 193     # Protect names problematic for 'test' and other utilities.
 194     case $dst_arg in
 195       -* | [=\(\)!]) dst_arg=./$dst_arg;;
 196     esac
 197   done
 198 fi
 199
 200 if test $# -eq 0; then
 201   if test -z "$dir_arg"; then
 202     echo "$0: no input file specified." >&2
 203     exit 1
 204   fi
 205   # It's OK to call 'install-sh -d' without argument.
 206   # This can happen when creating conditional directories.
 207   exit 0
 208 fi
 209
 210 if test -z "$dir_arg"; then
 211   do_exit='(exit $ret); exit $ret'
 212   trap "ret=129; $do_exit" 1
 213   trap "ret=130; $do_exit" 2
 214   trap "ret=141; $do_exit" 13
 215   trap "ret=143; $do_exit" 15
 216
 217   # Set umask so as not to create temps with too-generous modes.
 218   # However, 'strip' requires both read and write access to temps.
 219   case $mode in
 220     # Optimize common cases.
 221     *644) cp_umask=133;;
 222     *755) cp_umask=22;;
 223
 224     *[0-7])
 225       if test -z "$stripcmd"; then
 226         u_plus_rw=
 227       else
 228         u_plus_rw='% 200'
 229       fi
 230       cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
 231     *)
 232       if test -z "$stripcmd"; then
 233         u_plus_rw=
 234       else
 235         u_plus_rw=,u+rw
 236       fi
 237       cp_umask=$mode$u_plus_rw;;
 238   esac
 239 fi
 240
 241 for src
 242 do
 243   # Protect names problematic for 'test' and other utilities.
 244   case $src in
 245     -* | [=\(\)!]) src=./$src;;
 246   esac
 247
 248   if test -n "$dir_arg"; then
 249     dst=$src
 250     dstdir=$dst
 251     test -d "$dstdir"
 252     dstdir_status=$?
 253   else
 254
 255     # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
 256     # might cause directories to be created, which would be especially bad
 257     # if $src (and thus $dsttmp) contains '*'.
 258     if test ! -f "$src" && test ! -d "$src"; then
 259       echo "$0: $src does not exist." >&2
 260       exit 1
 261     fi
 262
 263     if test -z "$dst_arg"; then
 264       echo "$0: no destination specified." >&2
 265       exit 1
 266     fi
 267     dst=$dst_arg
 268
 269     # If destination is a directory, append the input filename; won't work
 270     # if double slashes aren't ignored.
 271     if test -d "$dst"; then
 272       if test -n "$no_target_directory"; then
 273         echo "$0: $dst_arg: Is a directory" >&2
 274         exit 1
 275       fi
 276       dstdir=$dst
 277       dst=$dstdir/`basename "$src"`
 278       dstdir_status=0
 279     else
 280       # Prefer dirname, but fall back on a substitute if dirname fails.
 281       dstdir=`
 282         (dirname "$dst") 2>/dev/null ||
 283         expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
 284              X"$dst" : 'X\(//\)[^/]' \| \
 285              X"$dst" : 'X\(//\)$' \| \
 286              X"$dst" : 'X\(/\)' \| . 2>/dev/null ||
 287         echo X"$dst" |
 288             sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 289                    s//\1/
 290                    q
 291                  }
 292                  /^X\(\/\/\)[^/].*/{
 293                    s//\1/
 294                    q
 295                  }
 296                  /^X\(\/\/\)$/{
 297                    s//\1/
 298                    q
 299                  }
 300                  /^X\(\/\).*/{
 301                    s//\1/
 302                    q
 303                  }
 304                  s/.*/./; q'
 305       `
 306
 307       test -d "$dstdir"
 308       dstdir_status=$?
 309     fi
 310   fi
 311
 312   obsolete_mkdir_used=false
 313
 314   if test $dstdir_status != 0; then
 315     case $posix_mkdir in
 316       '')
 317         # Create intermediate dirs using mode 755 as modified by the umask.
 318         # This is like FreeBSD 'install' as of 1997-10-28.
 319         umask=`umask`
 320         case $stripcmd.$umask in
 321           # Optimize common cases.
 322           *[2367][2367]) mkdir_umask=$umask;;
 323           .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
 324
 325           *[0-7])
 326             mkdir_umask=`expr $umask + 22 \
 327               - $umask % 100 % 40 + $umask % 20 \
 328               - $umask % 10 % 4 + $umask % 2
 329             `;;
 330           *) mkdir_umask=$umask,go-w;;
 331         esac
 332
 333         # With -d, create the new directory with the user-specified mode.
 334         # Otherwise, rely on $mkdir_umask.
 335         if test -n "$dir_arg"; then
 336           mkdir_mode=-m$mode
 337         else
 338           mkdir_mode=
 339         fi
 340
 341         posix_mkdir=false
 342         case $umask in
 343           *[123567][0-7][0-7])
 344             # POSIX mkdir -p sets u+wx bits regardless of umask, which
 345             # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
 346             ;;
 347           *)
 348             tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
 349             trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
 350
 351             if (umask $mkdir_umask &&
 352                 exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
 353             then
 354               if test -z "$dir_arg" || {
 355                    # Check for POSIX incompatibilities with -m.
 356                    # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
 357                    # other-writable bit of parent directory when it shouldn't.
 358                    # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
 359                    ls_ld_tmpdir=`ls -ld "$tmpdir"`
 360                    case $ls_ld_tmpdir in
 361                      d????-?r-*) different_mode=700;;
 362                      d????-?--*) different_mode=755;;
 363                      *) false;;
 364                    esac &&
 365                    $mkdirprog -m$different_mode -p -- "$tmpdir" && {
 366                      ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
 367                      test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
 368                    }
 369                  }
 370               then posix_mkdir=:
 371               fi
 372               rmdir "$tmpdir/d" "$tmpdir"
 373             else
 374               # Remove any dirs left behind by ancient mkdir implementations.
 375               rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
 376             fi
 377             trap '' 0;;
 378         esac;;
 379     esac
 380
 381     if
 382       $posix_mkdir && (
 383         umask $mkdir_umask &&
 384         $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
 385       )
 386     then :
 387     else
 388
 389       # The umask is ridiculous, or mkdir does not conform to POSIX,
 390       # or it failed possibly due to a race condition.  Create the
 391       # directory the slow way, step by step, checking for races as we go.
 392
 393       case $dstdir in
 394         /*) prefix='/';;
 395         [-=\(\)!]*) prefix='./';;
 396         *)  prefix='';;
 397       esac
 398
 399       eval "$initialize_posix_glob"
 400
 401       oIFS=$IFS
 402       IFS=/
 403       $posix_glob set -f
 404       set fnord $dstdir
 405       shift
 406       $posix_glob set +f
 407       IFS=$oIFS
 408
 409       prefixes=
 410
 411       for d
 412       do
 413         test X"$d" = X && continue
 414
 415         prefix=$prefix$d
 416         if test -d "$prefix"; then
 417           prefixes=
 418         else
 419           if $posix_mkdir; then
 420             (umask=$mkdir_umask &&
 421              $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
 422             # Don't fail if two instances are running concurrently.
 423             test -d "$prefix" || exit 1
 424           else
 425             case $prefix in
 426               *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
 427               *) qprefix=$prefix;;
 428             esac
 429             prefixes="$prefixes '$qprefix'"
 430           fi
 431         fi
 432         prefix=$prefix/
 433       done
 434
 435       if test -n "$prefixes"; then
 436         # Don't fail if two instances are running concurrently.
 437         (umask $mkdir_umask &&
 438          eval "\$doit_exec \$mkdirprog $prefixes") ||
 439           test -d "$dstdir" || exit 1
 440         obsolete_mkdir_used=true
 441       fi
 442     fi
 443   fi
 444
 445   if test -n "$dir_arg"; then
 446     { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
 447     { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
 448     { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
 449       test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
 450   else
 451
 452     # Make a couple of temp file names in the proper directory.
 453     dsttmp=$dstdir/_inst.$$_
 454     rmtmp=$dstdir/_rm.$$_
 455
 456     # Trap to clean up those temp files at exit.
 457     trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
 458
 459     # Copy the file name to the temp name.
 460     (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
 461
 462     # and set any options; do chmod last to preserve setuid bits.
 463     #
 464     # If any of these fail, we abort the whole thing.  If we want to
 465     # ignore errors from any of these, just make sure not to ignore
 466     # errors from the above "$doit $cpprog $src $dsttmp" command.
 467     #
 468     { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
 469     { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
 470     { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
 471     { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
 472
 473     # If -C, don't bother to copy if it wouldn't change the file.
 474     if $copy_on_change &&
 475        old=`LC_ALL=C ls -dlL "$dst"     2>/dev/null` &&
 476        new=`LC_ALL=C ls -dlL "$dsttmp"  2>/dev/null` &&
 477
 478        eval "$initialize_posix_glob" &&
 479        $posix_glob set -f &&
 480        set X $old && old=:$2:$4:$5:$6 &&
 481        set X $new && new=:$2:$4:$5:$6 &&
 482        $posix_glob set +f &&
 483
 484        test "$old" = "$new" &&
 485        $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
 486     then
 487       rm -f "$dsttmp"
 488     else
 489       # Rename the file to the real destination.
 490       $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
 491
 492       # The rename failed, perhaps because mv can't rename something else
 493       # to itself, or perhaps because mv is so ancient that it does not
 494       # support -f.
 495       {
 496         # Now remove or move aside any old file at destination location.
 497         # We try this two ways since rm can't unlink itself on some
 498         # systems and the destination file might be busy for other
 499         # reasons.  In this case, the final cleanup might fail but the new
 500         # file should still install successfully.
 501         {
 502           test ! -f "$dst" ||
 503           $doit $rmcmd -f "$dst" 2>/dev/null ||
 504           { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
 505             { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
 506           } ||
 507           { echo "$0: cannot unlink or rename $dst" >&2
 508             (exit 1); exit 1
 509           }
 510         } &&
 511
 512         # Now rename the file to the real destination.
 513         $doit $mvcmd "$dsttmp" "$dst"
 514       }
 515     fi || exit 1
 516
 517     trap '' 0
 518   fi
 519 done
 520
 521 # Local variables:
 522 # eval: (add-hook 'write-file-hooks 'time-stamp)
 523 # time-stamp-start: "scriptversion="
 524 # time-stamp-format: "%:y-%02m-%02d.%02H"
 525 # time-stamp-time-zone: "UTC"
 526 # time-stamp-end: "; # UTC"
 527 # End: