#!/bin/sh
 # install - install a program, script, or datafile
 

 scriptversion=2014-09-12.12; # UTC

 
 # This originates from X11R5 (mit/util/scripts/install.sh), which was
 # later released in X11R6 (xc/config/util/install.sh) with the
 # following copyright and license.
 #
 # Copyright (C) 1994 X Consortium
 #
 # Permission is hereby granted, free of charge, to any person obtaining a copy
 # of this software and associated documentation files (the "Software"), to
 # deal in the Software without restriction, including without limitation the
 # rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 # sell copies of the Software, and to permit persons to whom the Software is
 # furnished to do so, subject to the following conditions:
 #
 # The above copyright notice and this permission notice shall be included in
 # all copies or substantial portions of the Software.
 #
 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
 # X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
 # AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
 # TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
 # Except as contained in this notice, the name of the X Consortium shall not
 # be used in advertising or otherwise to promote the sale, use or other deal-
 # ings in this Software without prior written authorization from the X Consor-
 # tium.
 #
 #
 # FSF changes to this file are in the public domain.
 #
 # Calling this script install-sh is preferred over install.sh, to prevent

 # 'make' implicit rules from creating a file called install from it

 # when there is no Makefile.
 #
 # This script is compatible with the BSD install script, but was written

 # from scratch.
 

 tab='	'

 nl='
 '

 IFS=" $tab$nl"

 # Set DOITPROG to "echo" to test this script.

 doit=${DOITPROG-}

 doit_exec=${doit:-exec}

 # Put in absolute file names if you don't have them in your path;
 # or use environment vars.

 chgrpprog=${CHGRPPROG-chgrp}
 chmodprog=${CHMODPROG-chmod}
 chownprog=${CHOWNPROG-chown}
 cmpprog=${CMPPROG-cmp}
 cpprog=${CPPROG-cp}
 mkdirprog=${MKDIRPROG-mkdir}
 mvprog=${MVPROG-mv}
 rmprog=${RMPROG-rm}
 stripprog=${STRIPPROG-strip}
 

 posix_mkdir=
 
 # Desired mode of installed file.
 mode=0755
 

 chgrpcmd=

 chmodcmd=$chmodprog

 chowncmd=

 mvcmd=$mvprog

 rmcmd="$rmprog -f"

 stripcmd=
 

 src=
 dst=
 dir_arg=

 dst_arg=
 
 copy_on_change=false

 is_target_a_directory=possibly

 usage="\
 Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE

    or: $0 [OPTION]... SRCFILES... DIRECTORY
    or: $0 [OPTION]... -t DIRECTORY SRCFILES...
    or: $0 [OPTION]... -d DIRECTORIES...
 
 In the 1st form, copy SRCFILE to DSTFILE.
 In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
 In the 4th, create DIRECTORIES.
 
 Options:

      --help     display this help and exit.
      --version  display version info and exit.
 
   -c            (ignored)
   -C            install only if different (preserve the last data modification time)
   -d            create directories instead of installing files.
   -g GROUP      $chgrpprog installed files to GROUP.
   -m MODE       $chmodprog installed files to MODE.
   -o USER       $chownprog installed files to USER.
   -s            $stripprog installed files.
   -t DIRECTORY  install into DIRECTORY.
   -T            report an error if DSTFILE is a directory.

 
 Environment variables override the default commands:

   CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
   RMPROG STRIPPROG

 "
 

 while test $# -ne 0; do

   case $1 in

     -c) ;;
 
     -C) copy_on_change=true;;

     -d) dir_arg=true;;

 
     -g) chgrpcmd="$chgrpprog $2"

         shift;;

 
     --help) echo "$usage"; exit $?;;
 

     -m) mode=$2

         case $mode in
           *' '* | *"$tab"* | *"$nl"* | *'*'* | *'?'* | *'['*)
             echo "$0: invalid mode: $mode" >&2
             exit 1;;
         esac
         shift;;

 
     -o) chowncmd="$chownprog $2"

         shift;;

     -s) stripcmd=$stripprog;;

     -t)
         is_target_a_directory=always
         dst_arg=$2
         # Protect names problematic for 'test' and other utilities.
         case $dst_arg in
           -* | [=\(\)!]) dst_arg=./$dst_arg;;
         esac
         shift;;

     -T) is_target_a_directory=never;;

 
     --version) echo "$0 $scriptversion"; exit $?;;
 

     --) shift
         break;;

     -*) echo "$0: invalid option: $1" >&2
         exit 1;;

 
     *)  break;;

   esac

   shift

 done
 

 # We allow the use of options -d and -T together, by making -d
 # take the precedence; this is for compatibility with GNU install.
 
 if test -n "$dir_arg"; then
   if test -n "$dst_arg"; then
     echo "$0: target directory not allowed when installing a directory." >&2
     exit 1
   fi
 fi
 

 if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then

   # When -d is used, all remaining arguments are directories to create.
   # When -t is used, the destination is already specified.
   # Otherwise, the last argument is the destination.  Remove it from $@.
   for arg
   do

     if test -n "$dst_arg"; then

       # $@ is not empty: it contains at least $arg.

       set fnord "$@" "$dst_arg"

       shift # fnord
     fi
     shift # arg

     dst_arg=$arg

     # Protect names problematic for 'test' and other utilities.

     case $dst_arg in
       -* | [=\(\)!]) dst_arg=./$dst_arg;;
     esac

   done
 fi
 
 if test $# -eq 0; then

   if test -z "$dir_arg"; then
     echo "$0: no input file specified." >&2
     exit 1
   fi

   # It's OK to call 'install-sh -d' without argument.

   # This can happen when creating conditional directories.
   exit 0
 fi
 

 if test -z "$dir_arg"; then

   if test $# -gt 1 || test "$is_target_a_directory" = always; then
     if test ! -d "$dst_arg"; then
       echo "$0: $dst_arg: Is not a directory." >&2
       exit 1
     fi
   fi
 fi
 
 if test -z "$dir_arg"; then

   do_exit='(exit $ret); exit $ret'
   trap "ret=129; $do_exit" 1
   trap "ret=130; $do_exit" 2
   trap "ret=141; $do_exit" 13
   trap "ret=143; $do_exit" 15

 
   # Set umask so as not to create temps with too-generous modes.
   # However, 'strip' requires both read and write access to temps.
   case $mode in
     # Optimize common cases.
     *644) cp_umask=133;;
     *755) cp_umask=22;;
 
     *[0-7])
       if test -z "$stripcmd"; then

         u_plus_rw=

       else

         u_plus_rw='% 200'

       fi
       cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
     *)
       if test -z "$stripcmd"; then

         u_plus_rw=

       else

         u_plus_rw=,u+rw

       fi
       cp_umask=$mode$u_plus_rw;;
   esac
 fi
 

 for src
 do

   # Protect names problematic for 'test' and other utilities.

   case $src in

     -* | [=\(\)!]) src=./$src;;

   esac
 
   if test -n "$dir_arg"; then
     dst=$src

     dstdir=$dst
     test -d "$dstdir"
     dstdir_status=$?

   else

     # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
     # might cause directories to be created, which would be especially bad
     # if $src (and thus $dsttmp) contains '*'.
     if test ! -f "$src" && test ! -d "$src"; then
       echo "$0: $src does not exist." >&2
       exit 1
     fi
 

     if test -z "$dst_arg"; then

       echo "$0: no destination specified." >&2
       exit 1
     fi

     dst=$dst_arg

 
     # If destination is a directory, append the input filename; won't work
     # if double slashes aren't ignored.
     if test -d "$dst"; then

       if test "$is_target_a_directory" = never; then
         echo "$0: $dst_arg: Is a directory" >&2
         exit 1

       fi

       dstdir=$dst
       dst=$dstdir/`basename "$src"`
       dstdir_status=0
     else

       dstdir=`dirname "$dst"`

       test -d "$dstdir"
       dstdir_status=$?

     fi
   fi
 

   obsolete_mkdir_used=false
 
   if test $dstdir_status != 0; then
     case $posix_mkdir in
       '')

         # Create intermediate dirs using mode 755 as modified by the umask.
         # This is like FreeBSD 'install' as of 1997-10-28.
         umask=`umask`
         case $stripcmd.$umask in
           # Optimize common cases.
           *[2367][2367]) mkdir_umask=$umask;;
           .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
 
           *[0-7])
             mkdir_umask=`expr $umask + 22 \
               - $umask % 100 % 40 + $umask % 20 \
               - $umask % 10 % 4 + $umask % 2
             `;;
           *) mkdir_umask=$umask,go-w;;
         esac
 
         # With -d, create the new directory with the user-specified mode.
         # Otherwise, rely on $mkdir_umask.
         if test -n "$dir_arg"; then
           mkdir_mode=-m$mode
         else
           mkdir_mode=
         fi
 
         posix_mkdir=false
         case $umask in
           *[123567][0-7][0-7])
             # POSIX mkdir -p sets u+wx bits regardless of umask, which
             # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
             ;;
           *)
             # $RANDOM is not portable (e.g. dash);  use it when possible to
             # lower collision chance
             tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
             trap 'ret=$?; rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null; exit $ret' 0
 
             # As "mkdir -p" follows symlinks and we work in /tmp possibly;  so
             # create the $tmpdir first (and fail if unsuccessful) to make sure
             # that nobody tries to guess the $tmpdir name.
             if (umask $mkdir_umask &&
                 $mkdirprog $mkdir_mode "$tmpdir" &&
                 exec $mkdirprog $mkdir_mode -p -- "$tmpdir/a/b") >/dev/null 2>&1
             then
               if test -z "$dir_arg" || {
                    # Check for POSIX incompatibilities with -m.
                    # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
                    # other-writable bit of parent directory when it shouldn't.
                    # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
                    test_tmpdir="$tmpdir/a"
                    ls_ld_tmpdir=`ls -ld "$test_tmpdir"`
                    case $ls_ld_tmpdir in
                      d????-?r-*) different_mode=700;;
                      d????-?--*) different_mode=755;;
                      *) false;;
                    esac &&
                    $mkdirprog -m$different_mode -p -- "$test_tmpdir" && {
                      ls_ld_tmpdir_1=`ls -ld "$test_tmpdir"`
                      test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
                    }
                  }
               then posix_mkdir=:
               fi
               rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir"
             else
               # Remove any dirs left behind by ancient mkdir implementations.
               rmdir ./$mkdir_mode ./-p ./-- "$tmpdir" 2>/dev/null
             fi
             trap '' 0;;
         esac;;

     esac

     if
       $posix_mkdir && (

         umask $mkdir_umask &&
         $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"

       )
     then :
     else

       # The umask is ridiculous, or mkdir does not conform to POSIX,
       # or it failed possibly due to a race condition.  Create the
       # directory the slow way, step by step, checking for races as we go.
 
       case $dstdir in

         /*) prefix='/';;
         [-=\(\)!]*) prefix='./';;
         *)  prefix='';;

       esac
 
       oIFS=$IFS
       IFS=/

       set -f

       set fnord $dstdir

       shift

       set +f

       IFS=$oIFS
 
       prefixes=
 
       for d
       do

         test X"$d" = X && continue
 
         prefix=$prefix$d
         if test -d "$prefix"; then
           prefixes=
         else
           if $posix_mkdir; then
             (umask=$mkdir_umask &&
              $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
             # Don't fail if two instances are running concurrently.
             test -d "$prefix" || exit 1
           else
             case $prefix in
               *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
               *) qprefix=$prefix;;
             esac
             prefixes="$prefixes '$qprefix'"
           fi
         fi
         prefix=$prefix/

       done
 
       if test -n "$prefixes"; then

         # Don't fail if two instances are running concurrently.
         (umask $mkdir_umask &&
          eval "\$doit_exec \$mkdirprog $prefixes") ||
           test -d "$dstdir" || exit 1
         obsolete_mkdir_used=true

       fi

     fi

   fi
 
   if test -n "$dir_arg"; then

     { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
     { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
     { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
       test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1

   else
 
     # Make a couple of temp file names in the proper directory.
     dsttmp=$dstdir/_inst.$$_
     rmtmp=$dstdir/_rm.$$_
 
     # Trap to clean up those temp files at exit.
     trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
 
     # Copy the file name to the temp name.

     (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&

 
     # and set any options; do chmod last to preserve setuid bits.
     #
     # If any of these fail, we abort the whole thing.  If we want to
     # ignore errors from any of these, just make sure not to ignore
     # errors from the above "$doit $cpprog $src $dsttmp" command.
     #

     { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
     { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
     { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
     { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
 
     # If -C, don't bother to copy if it wouldn't change the file.
     if $copy_on_change &&

        old=`LC_ALL=C ls -dlL "$dst"     2>/dev/null` &&
        new=`LC_ALL=C ls -dlL "$dsttmp"  2>/dev/null` &&
        set -f &&

        set X $old && old=:$2:$4:$5:$6 &&
        set X $new && new=:$2:$4:$5:$6 &&

        set +f &&

        test "$old" = "$new" &&
        $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
     then
       rm -f "$dsttmp"
     else
       # Rename the file to the real destination.
       $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
 
       # The rename failed, perhaps because mv can't rename something else
       # to itself, or perhaps because mv is so ancient that it does not
       # support -f.
       {

         # Now remove or move aside any old file at destination location.
         # We try this two ways since rm can't unlink itself on some
         # systems and the destination file might be busy for other
         # reasons.  In this case, the final cleanup might fail but the new
         # file should still install successfully.
         {
           test ! -f "$dst" ||
           $doit $rmcmd -f "$dst" 2>/dev/null ||
           { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
             { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
           } ||
           { echo "$0: cannot unlink or rename $dst" >&2
             (exit 1); exit 1
           }
         } &&
 
         # Now rename the file to the real destination.
         $doit $mvcmd "$dsttmp" "$dst"

       }
     fi || exit 1

     trap '' 0
   fi
 done

 
 # Local variables:
 # eval: (add-hook 'write-file-hooks 'time-stamp)
 # time-stamp-start: "scriptversion="
 # time-stamp-format: "%:y-%02m-%02d.%02H"

 # time-stamp-time-zone: "UTC"
 # time-stamp-end: "; # UTC"

 # End: