Annotation of embedaddon/quagga/install-sh, revision 1.1

1.1     ! misho       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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