mythtv_plugin/install-sh
author leo_sobral
Wed Sep 20 23:59:48 2006 +0100 (2006-09-20)
branchtrunk
changeset 2 bd3829c2e9c9
permissions -rwxr-xr-x
[svn r3] imported to sf repository
     1 #!/bin/sh
     2 # install - install a program, script, or datafile
     3 
     4 scriptversion=2004-04-01.17
     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 rename the file to the real destination.
   284     { $doit $mvcmd -f "$dsttmp" "$dstdir/$dstfile" 2>/dev/null \
   285       || {
   286 	   # The rename failed, perhaps because mv can't rename something else
   287 	   # to itself, or perhaps because mv is so ancient that it does not
   288 	   # support -f.
   289 
   290 	   # Now remove or move aside any old file at destination location.
   291 	   # We try this two ways since rm can't unlink itself on some
   292 	   # systems and the destination file might be busy for other
   293 	   # reasons.  In this case, the final cleanup might fail but the new
   294 	   # file should still install successfully.
   295 	   {
   296 	     if test -f "$dstdir/$dstfile"; then
   297 	       $doit $rmcmd -f "$dstdir/$dstfile" 2>/dev/null \
   298 	       || $doit $mvcmd -f "$dstdir/$dstfile" "$rmtmp" 2>/dev/null \
   299 	       || {
   300 		 echo "$0: cannot unlink or rename $dstdir/$dstfile" >&2
   301 		 (exit 1); exit
   302 	       }
   303 	     else
   304 	       :
   305 	     fi
   306 	   } &&
   307 
   308 	   # Now rename the file to the real destination.
   309 	   $doit $mvcmd "$dsttmp" "$dstdir/$dstfile"
   310 	 }
   311     }
   312   fi || { (exit 1); exit; }
   313 done
   314 
   315 # The final little trick to "correctly" pass the exit status to the exit trap.
   316 {
   317   (exit 0); exit
   318 }
   319 
   320 # Local variables:
   321 # eval: (add-hook 'write-file-hooks 'time-stamp)
   322 # time-stamp-start: "scriptversion="
   323 # time-stamp-format: "%:y-%02m-%02d.%02H"
   324 # time-stamp-end: "$"
   325 # End: