~vcs-imports/gawk/master

#!/bin/sh

# install - install a program, script, or datafile

scriptversion=2020-11-14.01; # 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

# Create dirs (including intermediate dirs) using mode 755.

# This is like GNU 'install' as of coreutils 8.32 (2020).

mkdir_umask=22

backupsuffix=

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 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.

  -p            pass -p to $cpprog.

  -s            $stripprog installed files.

  -S SUFFIX     attempt to back up existing files, with suffix SUFFIX.

  -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

By default, rm is invoked with -f; when overridden with RMPROG,

it's up to you to specify -f if you want it.

If -S is not specified, no backups are attempted.

Email bug reports to bug-automake@gnu.org.

Automake home page: https://www.gnu.org/software/automake/

"

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;;

    -p) cpprog="$cpprog -p";;

    -s) stripcmd=$stripprog;;

    -S) backupsuffix="$2"

        shift;;

    -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=$?

    # Don't chown directories that already exist.

    if test $dstdir_status = 0; then

      chowncmd=""

    fi

  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.

    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

      dstbase=`basename "$src"`

      case $dst in

	*/) dst=$dst$dstbase;;

	*)  dst=$dst/$dstbase;;

      esac

      dstdir_status=0

    else

      dstdir=`dirname "$dst"`

      test -d "$dstdir"

      dstdir_status=$?

    fi

  fi

  case $dstdir in

    */) dstdirslash=$dstdir;;

    *)  dstdirslash=$dstdir/;;

  esac

  obsolete_mkdir_used=false

  if test $dstdir_status != 0; then

    case $posix_mkdir in

      '')

        # 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

	# The $RANDOM variable is not portable (e.g., dash).  Use it

	# here however when possible just to lower collision chance.

	tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$

	trap '

	  ret=$?

	  rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null

	  exit $ret

	' 0

	# Because "mkdir -p" follows existing symlinks and we likely work

	# directly in world-writeable /tmp, make sure that the '$tmpdir'

	# directory is successfully created first before we actually test

	# 'mkdir -p'.

	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

    if

      $posix_mkdir && (

        umask $mkdir_umask &&

        $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"

      )

    then :

    else

      # 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=${dstdirslash}_inst.$$_

    rmtmp=${dstdirslash}_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 &&

     { test -z "$stripcmd" || {

	 # Create $dsttmp read-write so that cp doesn't create it read-only,

	 # which would cause strip to fail.

	 if test -z "$doit"; then

	   : >"$dsttmp" # No need to fork-exec 'touch'.

	 else

	   $doit touch "$dsttmp"

	 fi

       }

     } &&

     $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

      # If $backupsuffix is set, and the file being installed

      # already exists, attempt a backup.  Don't worry if it fails,

      # e.g., if mv doesn't support -f.

      if test -n "$backupsuffix" && test -f "$dst"; then

        $doit $mvcmd -f "$dst" "$dst$backupsuffix" 2>/dev/null

      fi

      # 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 $rmcmd "$dst" 2>/dev/null ||

          { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&

            { $doit $rmcmd "$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 'before-save-hook 'time-stamp)

# time-stamp-start: "scriptversion="

# time-stamp-format: "%:y-%02m-%02d.%02H"

# time-stamp-time-zone: "UTC0"

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

# End: