build-scripts/install-sh
changeset 1361 19418e4422cb
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1360:70a9cfb4cf1b 1361:19418e4422cb
       
     1 #!/bin/sh
       
     2 # install - install a program, script, or datafile
       
     3 
       
     4 scriptversion=2005-02-02.21
       
     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 chmodcmd="$chmodprog 0755"
       
    62 chowncmd=
       
    63 chgrpcmd=
       
    64 stripcmd=
       
    65 rmcmd="$rmprog -f"
       
    66 mvcmd="$mvprog"
       
    67 src=
       
    68 dst=
       
    69 dir_arg=
       
    70 dstarg=
       
    71 no_target_directory=
       
    72 
       
    73 usage="Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
       
    74    or: $0 [OPTION]... SRCFILES... DIRECTORY
       
    75    or: $0 [OPTION]... -t DIRECTORY SRCFILES...
       
    76    or: $0 [OPTION]... -d DIRECTORIES...
       
    77 
       
    78 In the 1st form, copy SRCFILE to DSTFILE.
       
    79 In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
       
    80 In the 4th, create DIRECTORIES.
       
    81 
       
    82 Options:
       
    83 -c         (ignored)
       
    84 -d         create directories instead of installing files.
       
    85 -g GROUP   $chgrpprog installed files to GROUP.
       
    86 -m MODE    $chmodprog installed files to MODE.
       
    87 -o USER    $chownprog installed files to USER.
       
    88 -s         $stripprog installed files.
       
    89 -t DIRECTORY  install into DIRECTORY.
       
    90 -T         report an error if DSTFILE is a directory.
       
    91 --help     display this help and exit.
       
    92 --version  display version info and exit.
       
    93 
       
    94 Environment variables override the default commands:
       
    95   CHGRPPROG CHMODPROG CHOWNPROG CPPROG MKDIRPROG MVPROG RMPROG STRIPPROG
       
    96 "
       
    97 
       
    98 while test -n "$1"; do
       
    99   case $1 in
       
   100     -c) shift
       
   101         continue;;
       
   102 
       
   103     -d) dir_arg=true
       
   104         shift
       
   105         continue;;
       
   106 
       
   107     -g) chgrpcmd="$chgrpprog $2"
       
   108         shift
       
   109         shift
       
   110         continue;;
       
   111 
       
   112     --help) echo "$usage"; exit $?;;
       
   113 
       
   114     -m) chmodcmd="$chmodprog $2"
       
   115         shift
       
   116         shift
       
   117         continue;;
       
   118 
       
   119     -o) chowncmd="$chownprog $2"
       
   120         shift
       
   121         shift
       
   122         continue;;
       
   123 
       
   124     -s) stripcmd=$stripprog
       
   125         shift
       
   126         continue;;
       
   127 
       
   128     -t) dstarg=$2
       
   129 	shift
       
   130 	shift
       
   131 	continue;;
       
   132 
       
   133     -T) no_target_directory=true
       
   134 	shift
       
   135 	continue;;
       
   136 
       
   137     --version) echo "$0 $scriptversion"; exit $?;;
       
   138 
       
   139     *)  # When -d is used, all remaining arguments are directories to create.
       
   140 	# When -t is used, the destination is already specified.
       
   141 	test -n "$dir_arg$dstarg" && break
       
   142         # Otherwise, the last argument is the destination.  Remove it from $@.
       
   143 	for arg
       
   144 	do
       
   145           if test -n "$dstarg"; then
       
   146 	    # $@ is not empty: it contains at least $arg.
       
   147 	    set fnord "$@" "$dstarg"
       
   148 	    shift # fnord
       
   149 	  fi
       
   150 	  shift # arg
       
   151 	  dstarg=$arg
       
   152 	done
       
   153 	break;;
       
   154   esac
       
   155 done
       
   156 
       
   157 if test -z "$1"; then
       
   158   if test -z "$dir_arg"; then
       
   159     echo "$0: no input file specified." >&2
       
   160     exit 1
       
   161   fi
       
   162   # It's OK to call `install-sh -d' without argument.
       
   163   # This can happen when creating conditional directories.
       
   164   exit 0
       
   165 fi
       
   166 
       
   167 for src
       
   168 do
       
   169   # Protect names starting with `-'.
       
   170   case $src in
       
   171     -*) src=./$src ;;
       
   172   esac
       
   173 
       
   174   if test -n "$dir_arg"; then
       
   175     dst=$src
       
   176     src=
       
   177 
       
   178     if test -d "$dst"; then
       
   179       mkdircmd=:
       
   180       chmodcmd=
       
   181     else
       
   182       mkdircmd=$mkdirprog
       
   183     fi
       
   184   else
       
   185     # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
       
   186     # might cause directories to be created, which would be especially bad
       
   187     # if $src (and thus $dsttmp) contains '*'.
       
   188     if test ! -f "$src" && test ! -d "$src"; then
       
   189       echo "$0: $src does not exist." >&2
       
   190       exit 1
       
   191     fi
       
   192 
       
   193     if test -z "$dstarg"; then
       
   194       echo "$0: no destination specified." >&2
       
   195       exit 1
       
   196     fi
       
   197 
       
   198     dst=$dstarg
       
   199     # Protect names starting with `-'.
       
   200     case $dst in
       
   201       -*) dst=./$dst ;;
       
   202     esac
       
   203 
       
   204     # If destination is a directory, append the input filename; won't work
       
   205     # if double slashes aren't ignored.
       
   206     if test -d "$dst"; then
       
   207       if test -n "$no_target_directory"; then
       
   208 	echo "$0: $dstarg: Is a directory" >&2
       
   209 	exit 1
       
   210       fi
       
   211       dst=$dst/`basename "$src"`
       
   212     fi
       
   213   fi
       
   214 
       
   215   # This sed command emulates the dirname command.
       
   216   dstdir=`echo "$dst" | sed -e 's,/*$,,;s,[^/]*$,,;s,/*$,,;s,^$,.,'`
       
   217 
       
   218   # Make sure that the destination directory exists.
       
   219 
       
   220   # Skip lots of stat calls in the usual case.
       
   221   if test ! -d "$dstdir"; then
       
   222     defaultIFS='
       
   223 	 '
       
   224     IFS="${IFS-$defaultIFS}"
       
   225 
       
   226     oIFS=$IFS
       
   227     # Some sh's can't handle IFS=/ for some reason.
       
   228     IFS='%'
       
   229     set x `echo "$dstdir" | sed -e 's@/@%@g' -e 's@^%@/@'`
       
   230     shift
       
   231     IFS=$oIFS
       
   232 
       
   233     pathcomp=
       
   234 
       
   235     while test $# -ne 0 ; do
       
   236       pathcomp=$pathcomp$1
       
   237       shift
       
   238       if test ! -d "$pathcomp"; then
       
   239         $mkdirprog "$pathcomp"
       
   240 	# mkdir can fail with a `File exist' error in case several
       
   241 	# install-sh are creating the directory concurrently.  This
       
   242 	# is OK.
       
   243 	test -d "$pathcomp" || exit
       
   244       fi
       
   245       pathcomp=$pathcomp/
       
   246     done
       
   247   fi
       
   248 
       
   249   if test -n "$dir_arg"; then
       
   250     $doit $mkdircmd "$dst" \
       
   251       && { test -z "$chowncmd" || $doit $chowncmd "$dst"; } \
       
   252       && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } \
       
   253       && { test -z "$stripcmd" || $doit $stripcmd "$dst"; } \
       
   254       && { test -z "$chmodcmd" || $doit $chmodcmd "$dst"; }
       
   255 
       
   256   else
       
   257     dstfile=`basename "$dst"`
       
   258 
       
   259     # Make a couple of temp file names in the proper directory.
       
   260     dsttmp=$dstdir/_inst.$$_
       
   261     rmtmp=$dstdir/_rm.$$_
       
   262 
       
   263     # Trap to clean up those temp files at exit.
       
   264     trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
       
   265     trap '(exit $?); exit' 1 2 13 15
       
   266 
       
   267     # Copy the file name to the temp name.
       
   268     $doit $cpprog "$src" "$dsttmp" &&
       
   269 
       
   270     # and set any options; do chmod last to preserve setuid bits.
       
   271     #
       
   272     # If any of these fail, we abort the whole thing.  If we want to
       
   273     # ignore errors from any of these, just make sure not to ignore
       
   274     # errors from the above "$doit $cpprog $src $dsttmp" command.
       
   275     #
       
   276     { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } \
       
   277       && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } \
       
   278       && { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } \
       
   279       && { test -z "$chmodcmd" || $doit $chmodcmd "$dsttmp"; } &&
       
   280 
       
   281     # Now rename the file to the real destination.
       
   282     { $doit $mvcmd -f "$dsttmp" "$dstdir/$dstfile" 2>/dev/null \
       
   283       || {
       
   284 	   # The rename failed, perhaps because mv can't rename something else
       
   285 	   # to itself, or perhaps because mv is so ancient that it does not
       
   286 	   # support -f.
       
   287 
       
   288 	   # Now remove or move aside any old file at destination location.
       
   289 	   # We try this two ways since rm can't unlink itself on some
       
   290 	   # systems and the destination file might be busy for other
       
   291 	   # reasons.  In this case, the final cleanup might fail but the new
       
   292 	   # file should still install successfully.
       
   293 	   {
       
   294 	     if test -f "$dstdir/$dstfile"; then
       
   295 	       $doit $rmcmd -f "$dstdir/$dstfile" 2>/dev/null \
       
   296 	       || $doit $mvcmd -f "$dstdir/$dstfile" "$rmtmp" 2>/dev/null \
       
   297 	       || {
       
   298 		 echo "$0: cannot unlink or rename $dstdir/$dstfile" >&2
       
   299 		 (exit 1); exit 1
       
   300 	       }
       
   301 	     else
       
   302 	       :
       
   303 	     fi
       
   304 	   } &&
       
   305 
       
   306 	   # Now rename the file to the real destination.
       
   307 	   $doit $mvcmd "$dsttmp" "$dstdir/$dstfile"
       
   308 	 }
       
   309     }
       
   310   fi || { (exit 1); exit 1; }
       
   311 done
       
   312 
       
   313 # The final little trick to "correctly" pass the exit status to the exit trap.
       
   314 {
       
   315   (exit 0); exit 0
       
   316 }
       
   317 
       
   318 # Local variables:
       
   319 # eval: (add-hook 'write-file-hooks 'time-stamp)
       
   320 # time-stamp-start: "scriptversion="
       
   321 # time-stamp-format: "%:y-%02m-%02d.%02H"
       
   322 # time-stamp-end: "$"
       
   323 # End: