File: install-sh [ffi-1.9.0 Documentation]

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

scriptversion=2009-04-28.21; # 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.

nl=' ' IFS=" "" $nl"

# set DOITPROG to echo to test this script

# Don't use :- since 4.3BSD and earlier shells don't like it. doit=${DOITPROG-} if test -z "$doit"; then

    doit_exec=exec

else

    doit_exec=$doit

fi

# 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_glob='?' initialize_posix_glob='

    test "$posix_glob" != "?" || {
      if (set -f) 2>/dev/null; then
        posix_glob=
      else
        posix_glob=:
      fi
    }

'

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 no_target_directory=

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
            *' '* | *'    '* | *'

'* | *'*'* | *'?'* | *'['*)

              echo "$0: invalid mode: $mode" >&2
              exit 1;;
          esac
          shift;;

      -o) chowncmd="$chownprog $2"
          shift;;

      -s) stripcmd=$stripprog;;

      -t) dst_arg=$2
          shift;;

      -T) no_target_directory=true;;

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

      --) shift
          break;;

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

      *)  break;;
    esac
    shift

done

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
    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

    trap '(exit $?); exit' 1 2 13 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 starting with `-'.
    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
      # Protect names starting with `-'.
      case $dst in
        -*) dst=./$dst;;
      esac

      # If destination is a directory, append the input filename; won't work
      # if double slashes aren't ignored.
      if test -d "$dst"; then
        if test -n "$no_target_directory"; then
          echo "$0: $dst_arg: Is a directory" >&2
          exit 1
        fi
        dstdir=$dst
        dst=$dstdir/`basename "$src"`
        dstdir_status=0
      else
        # Prefer dirname, but fall back on a substitute if dirname fails.
        dstdir=`
          (dirname "$dst") 2>/dev/null ||
          expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
               X"$dst" : 'X\(//\)[^/]' \| \
               X"$dst" : 'X\(//\)$' \| \
               X"$dst" : 'X\(/\)' \| . 2>/dev/null ||
          echo X"$dst" |
              sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
                     s//\1/
                     q
                   }
                   /^X\(\/\/\)[^/].*/{
                     s//\1/
                     q
                   }
                   /^X\(\/\/\)$/{
                     s//\1/
                     q
                   }
                   /^X\(\/\).*/{
                     s//\1/
                     q
                   }
                   s/.*/./; q'
        `

        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 $umask in
            *[123567][0-7][0-7])
              # POSIX mkdir -p sets u+wx bits regardless of umask, which
              # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
              ;;
            *)
              tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
              trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0

              if (umask $mkdir_umask &&
                  exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
              then
                if test -z "$dir_arg" || {
                     # Check for POSIX incompatibilities with -m.
                     # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
                     # other-writeable bit of parent directory when it shouldn't.
                     # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
                     ls_ld_tmpdir=`ls -ld "$tmpdir"`
                     case $ls_ld_tmpdir in
                       d????-?r-*) different_mode=700;;
                       d????-?--*) different_mode=755;;
                       *) false;;
                     esac &&
                     $mkdirprog -m$different_mode -p -- "$tmpdir" && {
                       ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
                       test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
                     }
                   }
                then posix_mkdir=:
                fi
                rmdir "$tmpdir/d" "$tmpdir"
              else
                # Remove any dirs left behind by ancient mkdir implementations.
                rmdir ./$mkdir_mode ./-p ./-- 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

        eval "$initialize_posix_glob"

        oIFS=$IFS
        IFS=/
        $posix_glob set -f
        set fnord $dstdir
        shift
        $posix_glob set +f
        IFS=$oIFS

        prefixes=

        for d
        do
          test -z "$d" && 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` &&

         eval "$initialize_posix_glob" &&
         $posix_glob set -f &&
         set X $old && old=:$2:$4:$5:$6 &&
         set X $new && new=:$2:$4:$5:$6 &&
         $posix_glob 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:

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