install-sh

   1 #!/bin/sh
   2 #
   3 # install - install a program, script, or datafile
   4 #
   5 # This originates from X11R5 (mit/util/scripts/install.sh), which was
   6 # later released in X11R6 (xc/config/util/install.sh) with the
   7 # following copyright and license.
   8 #
   9 # Copyright (C) 1994 X Consortium
  10 #
  11 # Permission is hereby granted, free of charge, to any person obtaining a copy
  12 # of this software and associated documentation files (the "Software"), to
  13 # deal in the Software without restriction, including without limitation the
  14 # rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
  15 # sell copies of the Software, and to permit persons to whom the Software is
  16 # furnished to do so, subject to the following conditions:
  17 #
  18 # The above copyright notice and this permission notice shall be included in
  19 # all copies or substantial portions of the Software.
  20 #
  21 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  22 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  23 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
  24 # X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  25 # AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
  26 # TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  27 #
  28 # Except as contained in this notice, the name of the X Consortium shall not
  29 # be used in advertising or otherwise to promote the sale, use or other deal-
  30 # ings in this Software without prior written authorization from the X Consor-
  31 # tium.
  32 #
  33 #
  34 # FSF changes to this file are in the public domain.
  35 #
  36 # Calling this script install-sh is preferred over install.sh, to prevent
  37 # `make' implicit rules from creating a file called install from it
  38 # when there is no Makefile.
  39 #
  40 # This script is compatible with the BSD install script, but was written
  41 # from scratch.  It can only install one file at a time, a restriction
  42 # shared with many OS's install programs.
  43
  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="${DOITPROG-}"
  49
  50
  51 # put in absolute paths if you don't have them in your path; or use env. vars.
  52
  53 mvprog="${MVPROG-mv}"
  54 cpprog="${CPPROG-cp}"
  55 chmodprog="${CHMODPROG-chmod}"
  56 chownprog="${CHOWNPROG-chown}"
  57 chgrpprog="${CHGRPPROG-chgrp}"
  58 stripprog="${STRIPPROG-strip}"
  59 rmprog="${RMPROG-rm}"
  60 mkdirprog="${MKDIRPROG-mkdir}"
  61
  62 transformbasename=""
  63 transform_arg=""
  64 instcmd="$mvprog"
  65 chmodcmd="$chmodprog 0755"
  66 chowncmd=""
  67 chgrpcmd=""
  68 stripcmd=""
  69 rmcmd="$rmprog -f"
  70 mvcmd="$mvprog"
  71 src=""
  72 dst=""
  73 dir_arg=""
  74
  75 while [ x"$1" != x ]; do
  76     case $1 in
  77         -c) instcmd=$cpprog
  78             shift
  79             continue;;
  80
  81         -d) dir_arg=true
  82             shift
  83             continue;;
  84
  85         -m) chmodcmd="$chmodprog $2"
  86             shift
  87             shift
  88             continue;;
  89
  90         -o) chowncmd="$chownprog $2"
  91             shift
  92             shift
  93             continue;;
  94
  95         -g) chgrpcmd="$chgrpprog $2"
  96             shift
  97             shift
  98             continue;;
  99
 100         -s) stripcmd=$stripprog
 101             shift
 102             continue;;
 103
 104         -t=*) transformarg=`echo $1 | sed 's/-t=//'`
 105             shift
 106             continue;;
 107
 108         -b=*) transformbasename=`echo $1 | sed 's/-b=//'`
 109             shift
 110             continue;;
 111
 112         *)  if [ x"$src" = x ]
 113             then
 114                 src=$1
 115             else
 116                 # this colon is to work around a 386BSD /bin/sh bug
 117                 :
 118                 dst=$1
 119             fi
 120             shift
 121             continue;;
 122     esac
 123 done
 124
 125 if [ x"$src" = x ]
 126 then
 127         echo "$0: no input file specified" >&2
 128         exit 1
 129 else
 130         :
 131 fi
 132
 133 if [ x"$dir_arg" != x ]; then
 134         dst=$src
 135         src=""
 136
 137         if [ -d "$dst" ]; then
 138                 instcmd=:
 139                 chmodcmd=""
 140         else
 141                 instcmd=$mkdirprog
 142         fi
 143 else
 144
 145 # Waiting for this to be detected by the "$instcmd $src $dsttmp" command
 146 # might cause directories to be created, which would be especially bad
 147 # if $src (and thus $dsttmp) contains '*'.
 148
 149         if [ -f "$src" ] || [ -d "$src" ]
 150         then
 151                 :
 152         else
 153                 echo "$0: $src does not exist" >&2
 154                 exit 1
 155         fi
 156
 157         if [ x"$dst" = x ]
 158         then
 159                 echo "$0: no destination specified" >&2
 160                 exit 1
 161         else
 162                 :
 163         fi
 164
 165 # If destination is a directory, append the input filename; if your system
 166 # does not like double slashes in filenames, you may need to add some logic
 167
 168         if [ -d "$dst" ]
 169         then
 170                 dst=$dst/`basename "$src"`
 171         else
 172                 :
 173         fi
 174 fi
 175
 176 ## this sed command emulates the dirname command
 177 dstdir=`echo "$dst" | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
 178
 179 # Make sure that the destination directory exists.
 180 #  this part is taken from Noah Friedman's mkinstalldirs script
 181
 182 # Skip lots of stat calls in the usual case.
 183 if [ ! -d "$dstdir" ]; then
 184 defaultIFS='
 185         '
 186 IFS="${IFS-$defaultIFS}"
 187
 188 oIFS=$IFS
 189 # Some sh's can't handle IFS=/ for some reason.
 190 IFS='%'
 191 set - `echo "$dstdir" | sed -e 's@/@%@g' -e 's@^%@/@'`
 192 IFS=$oIFS
 193
 194 pathcomp=''
 195
 196 while [ $# -ne 0 ] ; do
 197         pathcomp=$pathcomp$1
 198         shift
 199
 200         if [ ! -d "$pathcomp" ] ;
 201         then
 202                 $mkdirprog "$pathcomp"
 203         else
 204                 :
 205         fi
 206
 207         pathcomp=$pathcomp/
 208 done
 209 fi
 210
 211 if [ x"$dir_arg" != x ]
 212 then
 213         $doit $instcmd "$dst" &&
 214
 215         if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dst"; else : ; fi &&
 216         if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dst"; else : ; fi &&
 217         if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dst"; else : ; fi &&
 218         if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dst"; else : ; fi
 219 else
 220
 221 # If we're going to rename the final executable, determine the name now.
 222
 223         if [ x"$transformarg" = x ]
 224         then
 225                 dstfile=`basename "$dst"`
 226         else
 227                 dstfile=`basename "$dst" $transformbasename |
 228                         sed $transformarg`$transformbasename
 229         fi
 230
 231 # don't allow the sed command to completely eliminate the filename
 232
 233         if [ x"$dstfile" = x ]
 234         then
 235                 dstfile=`basename "$dst"`
 236         else
 237                 :
 238         fi
 239
 240 # Make a couple of temp file names in the proper directory.
 241
 242         dsttmp=$dstdir/#inst.$$#
 243         rmtmp=$dstdir/#rm.$$#
 244
 245 # Trap to clean up temp files at exit.
 246
 247         trap 'status=$?; rm -f "$dsttmp" "$rmtmp" && exit $status' 0
 248         trap '(exit $?); exit' 1 2 13 15
 249
 250 # Move or copy the file name to the temp name
 251
 252         $doit $instcmd "$src" "$dsttmp" &&
 253
 254 # and set any options; do chmod last to preserve setuid bits
 255
 256 # If any of these fail, we abort the whole thing.  If we want to
 257 # ignore errors from any of these, just make sure not to ignore
 258 # errors from the above "$doit $instcmd $src $dsttmp" command.
 259
 260         if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dsttmp"; else :;fi &&
 261         if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dsttmp"; else :;fi &&
 262         if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dsttmp"; else :;fi &&
 263         if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dsttmp"; else :;fi &&
 264
 265 # Now remove or move aside any old file at destination location.  We try this
 266 # two ways since rm can't unlink itself on some systems and the destination
 267 # file might be busy for other reasons.  In this case, the final cleanup
 268 # might fail but the new file should still install successfully.
 269
 270 {
 271         if [ -f "$dstdir/$dstfile" ]
 272         then
 273                 $doit $rmcmd -f "$dstdir/$dstfile" 2>/dev/null ||
 274                 $doit $mvcmd -f "$dstdir/$dstfile" "$rmtmp" 2>/dev/null ||
 275                 {
 276                   echo "$0: cannot unlink or rename $dstdir/$dstfile" >&2
 277                   (exit 1); exit
 278                 }
 279         else
 280                 :
 281         fi
 282 } &&
 283
 284 # Now rename the file to the real destination.
 285
 286         $doit $mvcmd "$dsttmp" "$dstdir/$dstfile"
 287
 288 fi &&
 289
 290 # The final little trick to "correctly" pass the exit status to the exit trap.
 291
 292 {
 293         (exit 0); exit
 294 }