File:  [ELWIX - Embedded LightWeight unIX -] / embedaddon / libevent / install-sh
Revision 1.1.1.1 (vendor branch): download - view: text, annotated - select for diffs - revision graph
Tue Feb 21 23:02:54 2012 UTC (12 years, 3 months ago) by misho
Branches: libevent, MAIN
CVS tags: v1_4_14bp0, v1_4_14b, HEAD
libevent

    1: #!/bin/sh
    2: # install - install a program, script, or datafile
    3: 
    4: scriptversion=2009-04-28.21; # UTC
    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.
   43: 
   44: nl='
   45: '
   46: IFS=" ""	$nl"
   47: 
   48: # set DOITPROG to echo to test this script
   49: 
   50: # Don't use :- since 4.3BSD and earlier shells don't like it.
   51: doit=${DOITPROG-}
   52: if test -z "$doit"; then
   53:   doit_exec=exec
   54: else
   55:   doit_exec=$doit
   56: fi
   57: 
   58: # Put in absolute file names if you don't have them in your path;
   59: # or use environment vars.
   60: 
   61: chgrpprog=${CHGRPPROG-chgrp}
   62: chmodprog=${CHMODPROG-chmod}
   63: chownprog=${CHOWNPROG-chown}
   64: cmpprog=${CMPPROG-cmp}
   65: cpprog=${CPPROG-cp}
   66: mkdirprog=${MKDIRPROG-mkdir}
   67: mvprog=${MVPROG-mv}
   68: rmprog=${RMPROG-rm}
   69: stripprog=${STRIPPROG-strip}
   70: 
   71: posix_glob='?'
   72: initialize_posix_glob='
   73:   test "$posix_glob" != "?" || {
   74:     if (set -f) 2>/dev/null; then
   75:       posix_glob=
   76:     else
   77:       posix_glob=:
   78:     fi
   79:   }
   80: '
   81: 
   82: posix_mkdir=
   83: 
   84: # Desired mode of installed file.
   85: mode=0755
   86: 
   87: chgrpcmd=
   88: chmodcmd=$chmodprog
   89: chowncmd=
   90: mvcmd=$mvprog
   91: rmcmd="$rmprog -f"
   92: stripcmd=
   93: 
   94: src=
   95: dst=
   96: dir_arg=
   97: dst_arg=
   98: 
   99: copy_on_change=false
  100: no_target_directory=
  101: 
  102: usage="\
  103: Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
  104:    or: $0 [OPTION]... SRCFILES... DIRECTORY
  105:    or: $0 [OPTION]... -t DIRECTORY SRCFILES...
  106:    or: $0 [OPTION]... -d DIRECTORIES...
  107: 
  108: In the 1st form, copy SRCFILE to DSTFILE.
  109: In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
  110: In the 4th, create DIRECTORIES.
  111: 
  112: Options:
  113:      --help     display this help and exit.
  114:      --version  display version info and exit.
  115: 
  116:   -c            (ignored)
  117:   -C            install only if different (preserve the last data modification time)
  118:   -d            create directories instead of installing files.
  119:   -g GROUP      $chgrpprog installed files to GROUP.
  120:   -m MODE       $chmodprog installed files to MODE.
  121:   -o USER       $chownprog installed files to USER.
  122:   -s            $stripprog installed files.
  123:   -t DIRECTORY  install into DIRECTORY.
  124:   -T            report an error if DSTFILE is a directory.
  125: 
  126: Environment variables override the default commands:
  127:   CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
  128:   RMPROG STRIPPROG
  129: "
  130: 
  131: while test $# -ne 0; do
  132:   case $1 in
  133:     -c) ;;
  134: 
  135:     -C) copy_on_change=true;;
  136: 
  137:     -d) dir_arg=true;;
  138: 
  139:     -g) chgrpcmd="$chgrpprog $2"
  140: 	shift;;
  141: 
  142:     --help) echo "$usage"; exit $?;;
  143: 
  144:     -m) mode=$2
  145: 	case $mode in
  146: 	  *' '* | *'	'* | *'
  147: '*	  | *'*'* | *'?'* | *'['*)
  148: 	    echo "$0: invalid mode: $mode" >&2
  149: 	    exit 1;;
  150: 	esac
  151: 	shift;;
  152: 
  153:     -o) chowncmd="$chownprog $2"
  154: 	shift;;
  155: 
  156:     -s) stripcmd=$stripprog;;
  157: 
  158:     -t) dst_arg=$2
  159: 	shift;;
  160: 
  161:     -T) no_target_directory=true;;
  162: 
  163:     --version) echo "$0 $scriptversion"; exit $?;;
  164: 
  165:     --)	shift
  166: 	break;;
  167: 
  168:     -*)	echo "$0: invalid option: $1" >&2
  169: 	exit 1;;
  170: 
  171:     *)  break;;
  172:   esac
  173:   shift
  174: done
  175: 
  176: if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
  177:   # When -d is used, all remaining arguments are directories to create.
  178:   # When -t is used, the destination is already specified.
  179:   # Otherwise, the last argument is the destination.  Remove it from $@.
  180:   for arg
  181:   do
  182:     if test -n "$dst_arg"; then
  183:       # $@ is not empty: it contains at least $arg.
  184:       set fnord "$@" "$dst_arg"
  185:       shift # fnord
  186:     fi
  187:     shift # arg
  188:     dst_arg=$arg
  189:   done
  190: fi
  191: 
  192: if test $# -eq 0; then
  193:   if test -z "$dir_arg"; then
  194:     echo "$0: no input file specified." >&2
  195:     exit 1
  196:   fi
  197:   # It's OK to call `install-sh -d' without argument.
  198:   # This can happen when creating conditional directories.
  199:   exit 0
  200: fi
  201: 
  202: if test -z "$dir_arg"; then
  203:   trap '(exit $?); exit' 1 2 13 15
  204: 
  205:   # Set umask so as not to create temps with too-generous modes.
  206:   # However, 'strip' requires both read and write access to temps.
  207:   case $mode in
  208:     # Optimize common cases.
  209:     *644) cp_umask=133;;
  210:     *755) cp_umask=22;;
  211: 
  212:     *[0-7])
  213:       if test -z "$stripcmd"; then
  214: 	u_plus_rw=
  215:       else
  216: 	u_plus_rw='% 200'
  217:       fi
  218:       cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
  219:     *)
  220:       if test -z "$stripcmd"; then
  221: 	u_plus_rw=
  222:       else
  223: 	u_plus_rw=,u+rw
  224:       fi
  225:       cp_umask=$mode$u_plus_rw;;
  226:   esac
  227: fi
  228: 
  229: for src
  230: do
  231:   # Protect names starting with `-'.
  232:   case $src in
  233:     -*) src=./$src;;
  234:   esac
  235: 
  236:   if test -n "$dir_arg"; then
  237:     dst=$src
  238:     dstdir=$dst
  239:     test -d "$dstdir"
  240:     dstdir_status=$?
  241:   else
  242: 
  243:     # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
  244:     # might cause directories to be created, which would be especially bad
  245:     # if $src (and thus $dsttmp) contains '*'.
  246:     if test ! -f "$src" && test ! -d "$src"; then
  247:       echo "$0: $src does not exist." >&2
  248:       exit 1
  249:     fi
  250: 
  251:     if test -z "$dst_arg"; then
  252:       echo "$0: no destination specified." >&2
  253:       exit 1
  254:     fi
  255: 
  256:     dst=$dst_arg
  257:     # Protect names starting with `-'.
  258:     case $dst in
  259:       -*) dst=./$dst;;
  260:     esac
  261: 
  262:     # If destination is a directory, append the input filename; won't work
  263:     # if double slashes aren't ignored.
  264:     if test -d "$dst"; then
  265:       if test -n "$no_target_directory"; then
  266: 	echo "$0: $dst_arg: Is a directory" >&2
  267: 	exit 1
  268:       fi
  269:       dstdir=$dst
  270:       dst=$dstdir/`basename "$src"`
  271:       dstdir_status=0
  272:     else
  273:       # Prefer dirname, but fall back on a substitute if dirname fails.
  274:       dstdir=`
  275: 	(dirname "$dst") 2>/dev/null ||
  276: 	expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
  277: 	     X"$dst" : 'X\(//\)[^/]' \| \
  278: 	     X"$dst" : 'X\(//\)$' \| \
  279: 	     X"$dst" : 'X\(/\)' \| . 2>/dev/null ||
  280: 	echo X"$dst" |
  281: 	    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
  282: 		   s//\1/
  283: 		   q
  284: 		 }
  285: 		 /^X\(\/\/\)[^/].*/{
  286: 		   s//\1/
  287: 		   q
  288: 		 }
  289: 		 /^X\(\/\/\)$/{
  290: 		   s//\1/
  291: 		   q
  292: 		 }
  293: 		 /^X\(\/\).*/{
  294: 		   s//\1/
  295: 		   q
  296: 		 }
  297: 		 s/.*/./; q'
  298:       `
  299: 
  300:       test -d "$dstdir"
  301:       dstdir_status=$?
  302:     fi
  303:   fi
  304: 
  305:   obsolete_mkdir_used=false
  306: 
  307:   if test $dstdir_status != 0; then
  308:     case $posix_mkdir in
  309:       '')
  310: 	# Create intermediate dirs using mode 755 as modified by the umask.
  311: 	# This is like FreeBSD 'install' as of 1997-10-28.
  312: 	umask=`umask`
  313: 	case $stripcmd.$umask in
  314: 	  # Optimize common cases.
  315: 	  *[2367][2367]) mkdir_umask=$umask;;
  316: 	  .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
  317: 
  318: 	  *[0-7])
  319: 	    mkdir_umask=`expr $umask + 22 \
  320: 	      - $umask % 100 % 40 + $umask % 20 \
  321: 	      - $umask % 10 % 4 + $umask % 2
  322: 	    `;;
  323: 	  *) mkdir_umask=$umask,go-w;;
  324: 	esac
  325: 
  326: 	# With -d, create the new directory with the user-specified mode.
  327: 	# Otherwise, rely on $mkdir_umask.
  328: 	if test -n "$dir_arg"; then
  329: 	  mkdir_mode=-m$mode
  330: 	else
  331: 	  mkdir_mode=
  332: 	fi
  333: 
  334: 	posix_mkdir=false
  335: 	case $umask in
  336: 	  *[123567][0-7][0-7])
  337: 	    # POSIX mkdir -p sets u+wx bits regardless of umask, which
  338: 	    # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
  339: 	    ;;
  340: 	  *)
  341: 	    tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
  342: 	    trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
  343: 
  344: 	    if (umask $mkdir_umask &&
  345: 		exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
  346: 	    then
  347: 	      if test -z "$dir_arg" || {
  348: 		   # Check for POSIX incompatibilities with -m.
  349: 		   # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
  350: 		   # other-writeable bit of parent directory when it shouldn't.
  351: 		   # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
  352: 		   ls_ld_tmpdir=`ls -ld "$tmpdir"`
  353: 		   case $ls_ld_tmpdir in
  354: 		     d????-?r-*) different_mode=700;;
  355: 		     d????-?--*) different_mode=755;;
  356: 		     *) false;;
  357: 		   esac &&
  358: 		   $mkdirprog -m$different_mode -p -- "$tmpdir" && {
  359: 		     ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
  360: 		     test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
  361: 		   }
  362: 		 }
  363: 	      then posix_mkdir=:
  364: 	      fi
  365: 	      rmdir "$tmpdir/d" "$tmpdir"
  366: 	    else
  367: 	      # Remove any dirs left behind by ancient mkdir implementations.
  368: 	      rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
  369: 	    fi
  370: 	    trap '' 0;;
  371: 	esac;;
  372:     esac
  373: 
  374:     if
  375:       $posix_mkdir && (
  376: 	umask $mkdir_umask &&
  377: 	$doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
  378:       )
  379:     then :
  380:     else
  381: 
  382:       # The umask is ridiculous, or mkdir does not conform to POSIX,
  383:       # or it failed possibly due to a race condition.  Create the
  384:       # directory the slow way, step by step, checking for races as we go.
  385: 
  386:       case $dstdir in
  387: 	/*) prefix='/';;
  388: 	-*) prefix='./';;
  389: 	*)  prefix='';;
  390:       esac
  391: 
  392:       eval "$initialize_posix_glob"
  393: 
  394:       oIFS=$IFS
  395:       IFS=/
  396:       $posix_glob set -f
  397:       set fnord $dstdir
  398:       shift
  399:       $posix_glob set +f
  400:       IFS=$oIFS
  401: 
  402:       prefixes=
  403: 
  404:       for d
  405:       do
  406: 	test -z "$d" && continue
  407: 
  408: 	prefix=$prefix$d
  409: 	if test -d "$prefix"; then
  410: 	  prefixes=
  411: 	else
  412: 	  if $posix_mkdir; then
  413: 	    (umask=$mkdir_umask &&
  414: 	     $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
  415: 	    # Don't fail if two instances are running concurrently.
  416: 	    test -d "$prefix" || exit 1
  417: 	  else
  418: 	    case $prefix in
  419: 	      *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
  420: 	      *) qprefix=$prefix;;
  421: 	    esac
  422: 	    prefixes="$prefixes '$qprefix'"
  423: 	  fi
  424: 	fi
  425: 	prefix=$prefix/
  426:       done
  427: 
  428:       if test -n "$prefixes"; then
  429: 	# Don't fail if two instances are running concurrently.
  430: 	(umask $mkdir_umask &&
  431: 	 eval "\$doit_exec \$mkdirprog $prefixes") ||
  432: 	  test -d "$dstdir" || exit 1
  433: 	obsolete_mkdir_used=true
  434:       fi
  435:     fi
  436:   fi
  437: 
  438:   if test -n "$dir_arg"; then
  439:     { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
  440:     { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
  441:     { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
  442:       test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
  443:   else
  444: 
  445:     # Make a couple of temp file names in the proper directory.
  446:     dsttmp=$dstdir/_inst.$$_
  447:     rmtmp=$dstdir/_rm.$$_
  448: 
  449:     # Trap to clean up those temp files at exit.
  450:     trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
  451: 
  452:     # Copy the file name to the temp name.
  453:     (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
  454: 
  455:     # and set any options; do chmod last to preserve setuid bits.
  456:     #
  457:     # If any of these fail, we abort the whole thing.  If we want to
  458:     # ignore errors from any of these, just make sure not to ignore
  459:     # errors from the above "$doit $cpprog $src $dsttmp" command.
  460:     #
  461:     { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
  462:     { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
  463:     { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
  464:     { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
  465: 
  466:     # If -C, don't bother to copy if it wouldn't change the file.
  467:     if $copy_on_change &&
  468:        old=`LC_ALL=C ls -dlL "$dst"	2>/dev/null` &&
  469:        new=`LC_ALL=C ls -dlL "$dsttmp"	2>/dev/null` &&
  470: 
  471:        eval "$initialize_posix_glob" &&
  472:        $posix_glob set -f &&
  473:        set X $old && old=:$2:$4:$5:$6 &&
  474:        set X $new && new=:$2:$4:$5:$6 &&
  475:        $posix_glob set +f &&
  476: 
  477:        test "$old" = "$new" &&
  478:        $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
  479:     then
  480:       rm -f "$dsttmp"
  481:     else
  482:       # Rename the file to the real destination.
  483:       $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
  484: 
  485:       # The rename failed, perhaps because mv can't rename something else
  486:       # to itself, or perhaps because mv is so ancient that it does not
  487:       # support -f.
  488:       {
  489: 	# Now remove or move aside any old file at destination location.
  490: 	# We try this two ways since rm can't unlink itself on some
  491: 	# systems and the destination file might be busy for other
  492: 	# reasons.  In this case, the final cleanup might fail but the new
  493: 	# file should still install successfully.
  494: 	{
  495: 	  test ! -f "$dst" ||
  496: 	  $doit $rmcmd -f "$dst" 2>/dev/null ||
  497: 	  { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
  498: 	    { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
  499: 	  } ||
  500: 	  { echo "$0: cannot unlink or rename $dst" >&2
  501: 	    (exit 1); exit 1
  502: 	  }
  503: 	} &&
  504: 
  505: 	# Now rename the file to the real destination.
  506: 	$doit $mvcmd "$dsttmp" "$dst"
  507:       }
  508:     fi || exit 1
  509: 
  510:     trap '' 0
  511:   fi
  512: done
  513: 
  514: # Local variables:
  515: # eval: (add-hook 'write-file-hooks 'time-stamp)
  516: # time-stamp-start: "scriptversion="
  517: # time-stamp-format: "%:y-%02m-%02d.%02H"
  518: # time-stamp-time-zone: "UTC"
  519: # time-stamp-end: "; # UTC"
  520: # End:

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