Annotation of embedaddon/pcre/install-sh, revision 1.1.1.1

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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