build-aux/install-sh

   1 #!/bin/sh
   2 # install - install a program, script, or datafile
   3
   4 scriptversion=2005-09-13.16
   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 # set DOITPROG to echo to test this script
  46
  47 # Don't use :- since 4.3BSD and earlier shells don't like it.
  48 doit="${DOITPROG-}"
  49
  50 # put in absolute paths if you don't have them in your path; or use env. vars.
  51
  52 mvprog="${MVPROG-mv}"
  53 cpprog="${CPPROG-cp}"
  54 chmodprog="${CHMODPROG-chmod}"
  55 chownprog="${CHOWNPROG-chown}"
  56 chgrpprog="${CHGRPPROG-chgrp}"
  57 stripprog="${STRIPPROG-strip}"
  58 rmprog="${RMPROG-rm}"
  59 mkdirprog="${MKDIRPROG-mkdir}"
  60
  61 posix_glob=
  62 posix_mkdir=
  63
  64 # Symbolic mode for testing mkdir with directories.
  65 # It is the same as 755, but also tests that "u+" works.
  66 test_mode=u=rwx,g=rx,o=rx,u+wx
  67
  68 # Desired mode of installed file.
  69 mode=0755
  70
  71 # Desired mode of newly created intermediate directories.
  72 # It is empty if not known yet.
  73 intermediate_mode=
  74
  75 chmodcmd=$chmodprog
  76 chowncmd=
  77 chgrpcmd=
  78 stripcmd=
  79 rmcmd="$rmprog -f"
  80 mvcmd="$mvprog"
  81 src=
  82 dst=
  83 dir_arg=
  84 dstarg=
  85 no_target_directory=
  86
  87 usage="Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
  88    or: $0 [OPTION]... SRCFILES... DIRECTORY
  89    or: $0 [OPTION]... -t DIRECTORY SRCFILES...
  90    or: $0 [OPTION]... -d DIRECTORIES...
  91
  92 In the 1st form, copy SRCFILE to DSTFILE.
  93 In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
  94 In the 4th, create DIRECTORIES.
  95
  96 Options:
  97 -c         (ignored)
  98 -d         create directories instead of installing files.
  99 -g GROUP   $chgrpprog installed files to GROUP.
 100 -m MODE    $chmodprog installed files to MODE.
 101 -o USER    $chownprog installed files to USER.
 102 -s         $stripprog installed files.
 103 -t DIRECTORY  install into DIRECTORY.
 104 -T         report an error if DSTFILE is a directory.
 105 --help     display this help and exit.
 106 --version  display version info and exit.
 107
 108 Environment variables override the default commands:
 109   CHGRPPROG CHMODPROG CHOWNPROG CPPROG MKDIRPROG MVPROG RMPROG STRIPPROG
 110 "
 111
 112 while test -n "$1"; do
 113   case $1 in
 114     -c) shift
 115         continue;;
 116
 117     -d) dir_arg=true
 118         shift
 119         continue;;
 120
 121     -g) chgrpcmd="$chgrpprog $2"
 122         shift
 123         shift
 124         continue;;
 125
 126     --help) echo "$usage"; exit $?;;
 127
 128     -m) mode=$2
 129         shift
 130         shift
 131         continue;;
 132
 133     -o) chowncmd="$chownprog $2"
 134         shift
 135         shift
 136         continue;;
 137
 138     -s) stripcmd=$stripprog
 139         shift
 140         continue;;
 141
 142     -t) dstarg=$2
 143         shift
 144         shift
 145         continue;;
 146
 147     -T) no_target_directory=true
 148         shift
 149         continue;;
 150
 151     --version) echo "$0 $scriptversion"; exit $?;;
 152
 153     *)  # When -d is used, all remaining arguments are directories to create.
 154         # When -t is used, the destination is already specified.
 155         test -n "$dir_arg$dstarg" && break
 156         # Otherwise, the last argument is the destination.  Remove it from $@.
 157         for arg
 158         do
 159           if test -n "$dstarg"; then
 160             # $@ is not empty: it contains at least $arg.
 161             set fnord "$@" "$dstarg"
 162             shift # fnord
 163           fi
 164           shift # arg
 165           dstarg=$arg
 166         done
 167         break;;
 168   esac
 169 done
 170
 171 if test -z "$1"; then
 172   if test -z "$dir_arg"; then
 173     echo "$0: no input file specified." >&2
 174     exit 1
 175   fi
 176   # It's OK to call `install-sh -d' without argument.
 177   # This can happen when creating conditional directories.
 178   exit 0
 179 fi
 180
 181 test -n "$dir_arg" || trap '(exit $?); exit' 1 2 13 15
 182
 183 for src
 184 do
 185   # Protect names starting with `-'.
 186   case $src in
 187     -*) src=./$src ;;
 188   esac
 189
 190   if test -n "$dir_arg"; then
 191     dst=$src
 192     dstdir=$dst
 193     test -d "$dstdir"
 194     dstdir_status=$?
 195   else
 196
 197     # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
 198     # might cause directories to be created, which would be especially bad
 199     # if $src (and thus $dsttmp) contains '*'.
 200     if test ! -f "$src" && test ! -d "$src"; then
 201       echo "$0: $src does not exist." >&2
 202       exit 1
 203     fi
 204
 205     if test -z "$dstarg"; then
 206       echo "$0: no destination specified." >&2
 207       exit 1
 208     fi
 209
 210     dst=$dstarg
 211     # Protect names starting with `-'.
 212     case $dst in
 213       -*) dst=./$dst ;;
 214     esac
 215
 216     # If destination is a directory, append the input filename; won't work
 217     # if double slashes aren't ignored.
 218     if test -d "$dst"; then
 219       if test -n "$no_target_directory"; then
 220         echo "$0: $dstarg: Is a directory" >&2
 221         exit 1
 222       fi
 223       dstdir=$dst
 224       dst=$dstdir/`basename "$src"`
 225       dstdir_status=0
 226     else
 227       # Prefer dirname, but fall back on a substitute if dirname fails.
 228       dstdir=`
 229         (dirname "$dst") 2>/dev/null ||
 230         expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
 231              X"$dst" : 'X\(//\)[^/]' \| \
 232              X"$dst" : 'X\(//\)$' \| \
 233              X"$dst" : 'X\(/\)' \| \
 234              .       : '\(.\)' 2>/dev/null ||
 235         echo X"$dst" |
 236             sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{ s//\1/; q; }
 237                   /^X\(\/\/\)[^/].*/{ s//\1/; q; }
 238                   /^X\(\/\/\)$/{ s//\1/; q; }
 239                   /^X\(\/\).*/{ s//\1/; q; }
 240                   s/.*/./; q'
 241       `
 242
 243       test -d "$dstdir"
 244       dstdir_status=$?
 245     fi
 246   fi
 247
 248   obsolete_mkdir_used=false
 249
 250   if test $dstdir_status != 0; then
 251     case $posix_mkdir in
 252       '')
 253         posix_mkdir=false
 254         if $mkdirprog -m $test_mode -p -- / >/dev/null 2>&1; then
 255           posix_mkdir=true
 256         else
 257           # Remove any dirs left behind by ancient mkdir implementations.
 258           rmdir ./-m "$test_mode" ./-p ./-- 2>/dev/null
 259         fi ;;
 260     esac
 261
 262     if
 263       $posix_mkdir && {
 264
 265         # With -d, create the new directory with the user-specified mode.
 266         # Otherwise, create it using the same intermediate mode that
 267         # mkdir -p would use when creating intermediate directories.
 268         # POSIX says that this mode is "$(umask -S),u+wx", so use that
 269         # if umask -S works.
 270
 271         if test -n "$dir_arg"; then
 272           mkdir_mode=$mode
 273         else
 274           case $intermediate_mode in
 275             '')
 276               if umask_S=`(umask -S) 2>/dev/null`; then
 277                 intermediate_mode=$umask_S,u+wx
 278               else
 279                 intermediate_mode=$test_mode
 280               fi ;;
 281           esac
 282           mkdir_mode=$intermediate_mode
 283         fi
 284
 285         $mkdirprog -m "$mkdir_mode" -p -- "$dstdir"
 286       }
 287     then :
 288     else
 289
 290       # mkdir does not conform to POSIX, or it failed possibly due to
 291       # a race condition.  Create the directory the slow way, step by
 292       # step, checking for races as we go.
 293
 294       case $dstdir in
 295         /*) pathcomp=/ ;;
 296         -*) pathcomp=./ ;;
 297         *)  pathcomp= ;;
 298       esac
 299
 300       case $posix_glob in
 301         '')
 302           if (set -f) 2>/dev/null; then
 303             posix_glob=true
 304           else
 305             posix_glob=false
 306           fi ;;
 307       esac
 308
 309       oIFS=$IFS
 310       IFS=/
 311       $posix_glob && set -f
 312       set fnord $dstdir
 313       shift
 314       $posix_glob && set +f
 315       IFS=$oIFS
 316
 317       for d
 318       do
 319         test "x$d" = x && continue
 320
 321         pathcomp=$pathcomp$d
 322         if test ! -d "$pathcomp"; then
 323           $mkdirprog "$pathcomp"
 324           # Don't fail if two instances are running concurrently.
 325           test -d "$pathcomp" || exit 1
 326         fi
 327         pathcomp=$pathcomp/
 328       done
 329       obsolete_mkdir_used=true
 330     fi
 331   fi
 332
 333   if test -n "$dir_arg"; then
 334     { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
 335     { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
 336     { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
 337       test -z "$chmodcmd" || $doit $chmodcmd "$mode" "$dst"; } || exit 1
 338   else
 339
 340     # Make a couple of temp file names in the proper directory.
 341     dsttmp=$dstdir/_inst.$$_
 342     rmtmp=$dstdir/_rm.$$_
 343
 344     # Trap to clean up those temp files at exit.
 345     trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
 346
 347     # Copy the file name to the temp name.
 348     $doit $cpprog "$src" "$dsttmp" &&
 349
 350     # and set any options; do chmod last to preserve setuid bits.
 351     #
 352     # If any of these fail, we abort the whole thing.  If we want to
 353     # ignore errors from any of these, just make sure not to ignore
 354     # errors from the above "$doit $cpprog $src $dsttmp" command.
 355     #
 356     { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } \
 357       && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } \
 358       && { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } \
 359       && { test -z "$chmodcmd" || $doit $chmodcmd "$mode" "$dsttmp"; } &&
 360
 361     # Now rename the file to the real destination.
 362     { $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null \
 363       || {
 364            # The rename failed, perhaps because mv can't rename something else
 365            # to itself, or perhaps because mv is so ancient that it does not
 366            # support -f.
 367
 368            # Now remove or move aside any old file at destination location.
 369            # We try this two ways since rm can't unlink itself on some
 370            # systems and the destination file might be busy for other
 371            # reasons.  In this case, the final cleanup might fail but the new
 372            # file should still install successfully.
 373            {
 374              if test -f "$dst"; then
 375                $doit $rmcmd -f "$dst" 2>/dev/null \
 376                || { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null \
 377                      && { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }; }\
 378                || {
 379                  echo "$0: cannot unlink or rename $dst" >&2
 380                  (exit 1); exit 1
 381                }
 382              else
 383                :
 384              fi
 385            } &&
 386
 387            # Now rename the file to the real destination.
 388            $doit $mvcmd "$dsttmp" "$dst"
 389          }
 390     } || exit 1
 391
 392     trap - 0
 393   fi
 394 done
 395
 396 # Local variables:
 397 # eval: (add-hook 'write-file-hooks 'time-stamp)
 398 # time-stamp-start: "scriptversion="
 399 # time-stamp-format: "%:y-%02m-%02d.%02H"
 400 # time-stamp-end: "$"
 401 # End: