install-sh

   1 #!/bin/sh
   2 # install - install a program, script, or datafile
   3
   4 scriptversion=2004-02-15.20
   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="${MKDIRPROG-mkdir}"
  60
  61 transformbasename=
  62 transform_arg=
  63 instcmd="$mvprog"
  64 chmodcmd="$chmodprog 0755"
  65 chowncmd=
  66 chgrpcmd=
  67 stripcmd=
  68 rmcmd="$rmprog -f"
  69 mvcmd="$mvprog"
  70 src=
  71 dst=
  72 dir_arg=
  73
  74 usage="Usage: $0 [OPTION]... SRCFILE DSTFILE
  75    or: $0 [OPTION]... SRCFILES... DIRECTORY
  76    or: $0 -d DIRECTORIES...
  77
  78 In the first form, install SRCFILE to DSTFILE, removing SRCFILE by default.
  79 In the second, create the directory path DIR.
  80
  81 Options:
  82 -b=TRANSFORMBASENAME
  83 -c         copy source (using $cpprog) instead of moving (using $mvprog).
  84 -d         create directories instead of installing files.
  85 -g GROUP   $chgrp installed files to GROUP.
  86 -m MODE    $chmod installed files to MODE.
  87 -o USER    $chown installed files to USER.
  88 -s         strip installed files (using $stripprog).
  89 -t=TRANSFORM
  90 --help     display this help and exit.
  91 --version  display version info and exit.
  92
  93 Environment variables override the default commands:
  94   CHGRPPROG CHMODPROG CHOWNPROG CPPROG MKDIRPROG MVPROG RMPROG STRIPPROG
  95 "
  96
  97 while test -n "$1"; do
  98   case $1 in
  99     -b=*) transformbasename=`echo $1 | sed 's/-b=//'`
 100         shift
 101         continue;;
 102
 103     -c) instcmd=$cpprog
 104         shift
 105         continue;;
 106
 107     -d) dir_arg=true
 108         shift
 109         continue;;
 110
 111     -g) chgrpcmd="$chgrpprog $2"
 112         shift
 113         shift
 114         continue;;
 115
 116     --help) echo "$usage"; exit 0;;
 117
 118     -m) chmodcmd="$chmodprog $2"
 119         shift
 120         shift
 121         continue;;
 122
 123     -o) chowncmd="$chownprog $2"
 124         shift
 125         shift
 126         continue;;
 127
 128     -s) stripcmd=$stripprog
 129         shift
 130         continue;;
 131
 132     -t=*) transformarg=`echo $1 | sed 's/-t=//'`
 133         shift
 134         continue;;
 135
 136     --version) echo "$0 $scriptversion"; exit 0;;
 137
 138     *)  # When -d is used, all remaining arguments are directories to create.
 139         test -n "$dir_arg" && break
 140         # Otherwise, the last argument is the destination.  Remove it from $@.
 141         for arg
 142         do
 143           if test -n "$dstarg"; then
 144             # $@ is not empty: it contains at least $arg.
 145             set fnord "$@" "$dstarg"
 146             shift # fnord
 147           fi
 148           shift # arg
 149           dstarg=$arg
 150         done
 151         break;;
 152   esac
 153 done
 154
 155 if test -z "$1"; then
 156   if test -z "$dir_arg"; then
 157     echo "$0: no input file specified." >&2
 158     exit 1
 159   fi
 160   # It's OK to call `install-sh -d' without argument.
 161   # This can happen when creating conditional directories.
 162   exit 0
 163 fi
 164
 165 for src
 166 do
 167   # Protect names starting with `-'.
 168   case $src in
 169     -*) src=./$src ;;
 170   esac
 171
 172   if test -n "$dir_arg"; then
 173     dst=$src
 174     src=
 175
 176     if test -d "$dst"; then
 177       instcmd=:
 178       chmodcmd=
 179     else
 180       instcmd=$mkdirprog
 181     fi
 182   else
 183     # Waiting for this to be detected by the "$instcmd $src $dsttmp" command
 184     # might cause directories to be created, which would be especially bad
 185     # if $src (and thus $dsttmp) contains '*'.
 186     if test ! -f "$src" && test ! -d "$src"; then
 187       echo "$0: $src does not exist." >&2
 188       exit 1
 189     fi
 190
 191     if test -z "$dstarg"; then
 192       echo "$0: no destination specified." >&2
 193       exit 1
 194     fi
 195
 196     dst=$dstarg
 197     # Protect names starting with `-'.
 198     case $dst in
 199       -*) dst=./$dst ;;
 200     esac
 201
 202     # If destination is a directory, append the input filename; won't work
 203     # if double slashes aren't ignored.
 204     if test -d "$dst"; then
 205       dst=$dst/`basename "$src"`
 206     fi
 207   fi
 208
 209   # This sed command emulates the dirname command.
 210   dstdir=`echo "$dst" | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
 211
 212   # Make sure that the destination directory exists.
 213
 214   # Skip lots of stat calls in the usual case.
 215   if test ! -d "$dstdir"; then
 216     defaultIFS='
 217          '
 218     IFS="${IFS-$defaultIFS}"
 219
 220     oIFS=$IFS
 221     # Some sh's can't handle IFS=/ for some reason.
 222     IFS='%'
 223     set - `echo "$dstdir" | sed -e 's@/@%@g' -e 's@^%@/@'`
 224     IFS=$oIFS
 225
 226     pathcomp=
 227
 228     while test $# -ne 0 ; do
 229       pathcomp=$pathcomp$1
 230       shift
 231       if test ! -d "$pathcomp"; then
 232         $mkdirprog "$pathcomp" || lasterr=$?
 233         # mkdir can fail with a `File exist' error in case several
 234         # install-sh are creating the directory concurrently.  This
 235         # is OK.
 236         test ! -d "$pathcomp" && { (exit ${lasterr-1}); exit; }
 237       fi
 238       pathcomp=$pathcomp/
 239     done
 240   fi
 241
 242   if test -n "$dir_arg"; then
 243     $doit $instcmd "$dst" \
 244       && { test -z "$chowncmd" || $doit $chowncmd "$dst"; } \
 245       && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } \
 246       && { test -z "$stripcmd" || $doit $stripcmd "$dst"; } \
 247       && { test -z "$chmodcmd" || $doit $chmodcmd "$dst"; }
 248
 249   else
 250     # If we're going to rename the final executable, determine the name now.
 251     if test -z "$transformarg"; then
 252       dstfile=`basename "$dst"`
 253     else
 254       dstfile=`basename "$dst" $transformbasename \
 255                | sed $transformarg`$transformbasename
 256     fi
 257
 258     # don't allow the sed command to completely eliminate the filename.
 259     test -z "$dstfile" && dstfile=`basename "$dst"`
 260
 261     # Make a couple of temp file names in the proper directory.
 262     dsttmp=$dstdir/_inst.$$_
 263     rmtmp=$dstdir/_rm.$$_
 264
 265     # Trap to clean up those temp files at exit.
 266     trap 'status=$?; rm -f "$dsttmp" "$rmtmp" && exit $status' 0
 267     trap '(exit $?); exit' 1 2 13 15
 268
 269     # Move or copy the file name to the temp name
 270     $doit $instcmd "$src" "$dsttmp" &&
 271
 272     # and set any options; do chmod last to preserve setuid bits.
 273     #
 274     # If any of these fail, we abort the whole thing.  If we want to
 275     # ignore errors from any of these, just make sure not to ignore
 276     # errors from the above "$doit $instcmd $src $dsttmp" command.
 277     #
 278     { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } \
 279       && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } \
 280       && { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } \
 281       && { test -z "$chmodcmd" || $doit $chmodcmd "$dsttmp"; } &&
 282
 283     # Now remove or move aside any old file at destination location.  We
 284     # try this two ways since rm can't unlink itself on some systems and
 285     # the destination file might be busy for other reasons.  In this case,
 286     # the final cleanup might fail but the new file should still install
 287     # successfully.
 288     {
 289       if test -f "$dstdir/$dstfile"; then
 290         $doit $rmcmd -f "$dstdir/$dstfile" 2>/dev/null \
 291         || $doit $mvcmd -f "$dstdir/$dstfile" "$rmtmp" 2>/dev/null \
 292         || {
 293           echo "$0: cannot unlink or rename $dstdir/$dstfile" >&2
 294           (exit 1); exit
 295         }
 296       else
 297         :
 298       fi
 299     } &&
 300
 301     # Now rename the file to the real destination.
 302     $doit $mvcmd "$dsttmp" "$dstdir/$dstfile"
 303   fi || { (exit 1); exit; }
 304 done
 305
 306 # The final little trick to "correctly" pass the exit status to the exit trap.
 307 {
 308   (exit 0); exit
 309 }
 310
 311 # Local variables:
 312 # eval: (add-hook 'write-file-hooks 'time-stamp)
 313 # time-stamp-start: "scriptversion="
 314 # time-stamp-format: "%:y-%02m-%02d.%02H"
 315 # time-stamp-end: "$"
 316 # End: