Annotation of embedaddon/mtr/install-sh, revision 1.1.1.4

1.1       misho       1: #!/bin/sh
                      2: # install - install a program, script, or datafile
                      3: 
1.1.1.4 ! misho       4: scriptversion=2011-11-20.07; # UTC
1.1       misho       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
1.1.1.2   misho      38: # 'make' implicit rules from creating a file called install from it
1.1       misho      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: '
1.1.1.4 ! misho      46: IFS=" ""       $nl"
1.1       misho      47: 
1.1.1.4 ! misho      48: # set DOITPROG to echo to test this script
1.1       misho      49: 
1.1.1.4 ! misho      50: # Don't use :- since 4.3BSD and earlier shells don't like it.
1.1       misho      51: doit=${DOITPROG-}
1.1.1.4 ! misho      52: if test -z "$doit"; then
        !            53:   doit_exec=exec
        !            54: else
        !            55:   doit_exec=$doit
        !            56: fi
1.1       misho      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=${STRIPPROG-strip}
                     70: 
1.1.1.4 ! misho      71: posix_glob='?'
        !            72: initialize_posix_glob='
        !            73:   test "$posix_glob" != "?" || {
        !            74:     if (set -f) 2>/dev/null; then
        !            75:       posix_glob=
        !            76:     else
        !            77:       posix_glob=:
        !            78:     fi
        !            79:   }
        !            80: '
        !            81: 
1.1       misho      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
1.1.1.4 ! misho     100: no_target_directory=
1.1       misho     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 $2"
1.1.1.4 ! misho     140:        shift;;
1.1       misho     141: 
                    142:     --help) echo "$usage"; exit $?;;
                    143: 
                    144:     -m) mode=$2
1.1.1.4 ! misho     145:        case $mode in
        !           146:          *' '* | *'    '* | *'
        !           147: '*       | *'*'* | *'?'* | *'['*)
        !           148:            echo "$0: invalid mode: $mode" >&2
        !           149:            exit 1;;
        !           150:        esac
        !           151:        shift;;
1.1       misho     152: 
                    153:     -o) chowncmd="$chownprog $2"
1.1.1.4 ! misho     154:        shift;;
1.1       misho     155: 
                    156:     -s) stripcmd=$stripprog;;
                    157: 
1.1.1.4 ! misho     158:     -t) dst_arg=$2
        !           159:        # Protect names problematic for 'test' and other utilities.
        !           160:        case $dst_arg in
        !           161:          -* | [=\(\)!]) dst_arg=./$dst_arg;;
        !           162:        esac
        !           163:        shift;;
1.1       misho     164: 
1.1.1.4 ! misho     165:     -T) no_target_directory=true;;
1.1       misho     166: 
                    167:     --version) echo "$0 $scriptversion"; exit $?;;
                    168: 
1.1.1.4 ! misho     169:     --)        shift
        !           170:        break;;
1.1       misho     171: 
1.1.1.4 ! misho     172:     -*)        echo "$0: invalid option: $1" >&2
        !           173:        exit 1;;
1.1       misho     174: 
                    175:     *)  break;;
                    176:   esac
                    177:   shift
                    178: done
                    179: 
                    180: if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
                    181:   # When -d is used, all remaining arguments are directories to create.
                    182:   # When -t is used, the destination is already specified.
                    183:   # Otherwise, the last argument is the destination.  Remove it from $@.
                    184:   for arg
                    185:   do
                    186:     if test -n "$dst_arg"; then
                    187:       # $@ is not empty: it contains at least $arg.
                    188:       set fnord "$@" "$dst_arg"
                    189:       shift # fnord
                    190:     fi
                    191:     shift # arg
                    192:     dst_arg=$arg
1.1.1.2   misho     193:     # Protect names problematic for 'test' and other utilities.
                    194:     case $dst_arg in
                    195:       -* | [=\(\)!]) dst_arg=./$dst_arg;;
                    196:     esac
1.1       misho     197:   done
                    198: fi
                    199: 
                    200: if test $# -eq 0; then
                    201:   if test -z "$dir_arg"; then
                    202:     echo "$0: no input file specified." >&2
                    203:     exit 1
                    204:   fi
1.1.1.2   misho     205:   # It's OK to call 'install-sh -d' without argument.
1.1       misho     206:   # This can happen when creating conditional directories.
                    207:   exit 0
                    208: fi
                    209: 
                    210: if test -z "$dir_arg"; then
1.1.1.2   misho     211:   do_exit='(exit $ret); exit $ret'
                    212:   trap "ret=129; $do_exit" 1
                    213:   trap "ret=130; $do_exit" 2
                    214:   trap "ret=141; $do_exit" 13
                    215:   trap "ret=143; $do_exit" 15
1.1       misho     216: 
                    217:   # Set umask so as not to create temps with too-generous modes.
                    218:   # However, 'strip' requires both read and write access to temps.
                    219:   case $mode in
                    220:     # Optimize common cases.
                    221:     *644) cp_umask=133;;
                    222:     *755) cp_umask=22;;
                    223: 
                    224:     *[0-7])
                    225:       if test -z "$stripcmd"; then
1.1.1.4 ! misho     226:        u_plus_rw=
1.1       misho     227:       else
1.1.1.4 ! misho     228:        u_plus_rw='% 200'
1.1       misho     229:       fi
                    230:       cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
                    231:     *)
                    232:       if test -z "$stripcmd"; then
1.1.1.4 ! misho     233:        u_plus_rw=
1.1       misho     234:       else
1.1.1.4 ! misho     235:        u_plus_rw=,u+rw
1.1       misho     236:       fi
                    237:       cp_umask=$mode$u_plus_rw;;
                    238:   esac
                    239: fi
                    240: 
                    241: for src
                    242: do
1.1.1.2   misho     243:   # Protect names problematic for 'test' and other utilities.
1.1       misho     244:   case $src in
1.1.1.2   misho     245:     -* | [=\(\)!]) src=./$src;;
1.1       misho     246:   esac
                    247: 
                    248:   if test -n "$dir_arg"; then
                    249:     dst=$src
                    250:     dstdir=$dst
                    251:     test -d "$dstdir"
                    252:     dstdir_status=$?
                    253:   else
                    254: 
                    255:     # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
                    256:     # might cause directories to be created, which would be especially bad
                    257:     # if $src (and thus $dsttmp) contains '*'.
                    258:     if test ! -f "$src" && test ! -d "$src"; then
                    259:       echo "$0: $src does not exist." >&2
                    260:       exit 1
                    261:     fi
                    262: 
                    263:     if test -z "$dst_arg"; then
                    264:       echo "$0: no destination specified." >&2
                    265:       exit 1
                    266:     fi
                    267:     dst=$dst_arg
                    268: 
                    269:     # If destination is a directory, append the input filename; won't work
                    270:     # if double slashes aren't ignored.
                    271:     if test -d "$dst"; then
1.1.1.4 ! misho     272:       if test -n "$no_target_directory"; then
        !           273:        echo "$0: $dst_arg: Is a directory" >&2
        !           274:        exit 1
1.1       misho     275:       fi
                    276:       dstdir=$dst
                    277:       dst=$dstdir/`basename "$src"`
                    278:       dstdir_status=0
                    279:     else
1.1.1.4 ! misho     280:       # Prefer dirname, but fall back on a substitute if dirname fails.
        !           281:       dstdir=`
        !           282:        (dirname "$dst") 2>/dev/null ||
        !           283:        expr X"$dst" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
        !           284:             X"$dst" : 'X\(//\)[^/]' \| \
        !           285:             X"$dst" : 'X\(//\)$' \| \
        !           286:             X"$dst" : 'X\(/\)' \| . 2>/dev/null ||
        !           287:        echo X"$dst" |
        !           288:            sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
        !           289:                   s//\1/
        !           290:                   q
        !           291:                 }
        !           292:                 /^X\(\/\/\)[^/].*/{
        !           293:                   s//\1/
        !           294:                   q
        !           295:                 }
        !           296:                 /^X\(\/\/\)$/{
        !           297:                   s//\1/
        !           298:                   q
        !           299:                 }
        !           300:                 /^X\(\/\).*/{
        !           301:                   s//\1/
        !           302:                   q
        !           303:                 }
        !           304:                 s/.*/./; q'
        !           305:       `
        !           306: 
1.1       misho     307:       test -d "$dstdir"
                    308:       dstdir_status=$?
                    309:     fi
                    310:   fi
                    311: 
                    312:   obsolete_mkdir_used=false
                    313: 
                    314:   if test $dstdir_status != 0; then
                    315:     case $posix_mkdir in
                    316:       '')
1.1.1.4 ! misho     317:        # Create intermediate dirs using mode 755 as modified by the umask.
        !           318:        # This is like FreeBSD 'install' as of 1997-10-28.
        !           319:        umask=`umask`
        !           320:        case $stripcmd.$umask in
        !           321:          # Optimize common cases.
        !           322:          *[2367][2367]) mkdir_umask=$umask;;
        !           323:          .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
        !           324: 
        !           325:          *[0-7])
        !           326:            mkdir_umask=`expr $umask + 22 \
        !           327:              - $umask % 100 % 40 + $umask % 20 \
        !           328:              - $umask % 10 % 4 + $umask % 2
        !           329:            `;;
        !           330:          *) mkdir_umask=$umask,go-w;;
        !           331:        esac
        !           332: 
        !           333:        # With -d, create the new directory with the user-specified mode.
        !           334:        # Otherwise, rely on $mkdir_umask.
        !           335:        if test -n "$dir_arg"; then
        !           336:          mkdir_mode=-m$mode
        !           337:        else
        !           338:          mkdir_mode=
        !           339:        fi
        !           340: 
        !           341:        posix_mkdir=false
        !           342:        case $umask in
        !           343:          *[123567][0-7][0-7])
        !           344:            # POSIX mkdir -p sets u+wx bits regardless of umask, which
        !           345:            # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
        !           346:            ;;
        !           347:          *)
        !           348:            tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
        !           349:            trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
        !           350: 
        !           351:            if (umask $mkdir_umask &&
        !           352:                exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
        !           353:            then
        !           354:              if test -z "$dir_arg" || {
        !           355:                   # Check for POSIX incompatibilities with -m.
        !           356:                   # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
        !           357:                   # other-writable bit of parent directory when it shouldn't.
        !           358:                   # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
        !           359:                   ls_ld_tmpdir=`ls -ld "$tmpdir"`
        !           360:                   case $ls_ld_tmpdir in
        !           361:                     d????-?r-*) different_mode=700;;
        !           362:                     d????-?--*) different_mode=755;;
        !           363:                     *) false;;
        !           364:                   esac &&
        !           365:                   $mkdirprog -m$different_mode -p -- "$tmpdir" && {
        !           366:                     ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
        !           367:                     test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
        !           368:                   }
        !           369:                 }
        !           370:              then posix_mkdir=:
        !           371:              fi
        !           372:              rmdir "$tmpdir/d" "$tmpdir"
        !           373:            else
        !           374:              # Remove any dirs left behind by ancient mkdir implementations.
        !           375:              rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
        !           376:            fi
        !           377:            trap '' 0;;
        !           378:        esac;;
1.1       misho     379:     esac
                    380: 
                    381:     if
                    382:       $posix_mkdir && (
1.1.1.4 ! misho     383:        umask $mkdir_umask &&
        !           384:        $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
1.1       misho     385:       )
                    386:     then :
                    387:     else
                    388: 
                    389:       # The umask is ridiculous, or mkdir does not conform to POSIX,
                    390:       # or it failed possibly due to a race condition.  Create the
                    391:       # directory the slow way, step by step, checking for races as we go.
                    392: 
                    393:       case $dstdir in
1.1.1.4 ! misho     394:        /*) prefix='/';;
        !           395:        [-=\(\)!]*) prefix='./';;
        !           396:        *)  prefix='';;
1.1       misho     397:       esac
                    398: 
1.1.1.4 ! misho     399:       eval "$initialize_posix_glob"
        !           400: 
1.1       misho     401:       oIFS=$IFS
                    402:       IFS=/
1.1.1.4 ! misho     403:       $posix_glob set -f
1.1       misho     404:       set fnord $dstdir
                    405:       shift
1.1.1.4 ! misho     406:       $posix_glob set +f
1.1       misho     407:       IFS=$oIFS
                    408: 
                    409:       prefixes=
                    410: 
                    411:       for d
                    412:       do
1.1.1.4 ! misho     413:        test X"$d" = X && continue
1.1       misho     414: 
1.1.1.4 ! misho     415:        prefix=$prefix$d
        !           416:        if test -d "$prefix"; then
        !           417:          prefixes=
        !           418:        else
        !           419:          if $posix_mkdir; then
        !           420:            (umask=$mkdir_umask &&
        !           421:             $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
        !           422:            # Don't fail if two instances are running concurrently.
        !           423:            test -d "$prefix" || exit 1
        !           424:          else
        !           425:            case $prefix in
        !           426:              *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
        !           427:              *) qprefix=$prefix;;
        !           428:            esac
        !           429:            prefixes="$prefixes '$qprefix'"
        !           430:          fi
        !           431:        fi
        !           432:        prefix=$prefix/
1.1       misho     433:       done
                    434: 
                    435:       if test -n "$prefixes"; then
1.1.1.4 ! misho     436:        # Don't fail if two instances are running concurrently.
        !           437:        (umask $mkdir_umask &&
        !           438:         eval "\$doit_exec \$mkdirprog $prefixes") ||
        !           439:          test -d "$dstdir" || exit 1
        !           440:        obsolete_mkdir_used=true
1.1       misho     441:       fi
                    442:     fi
                    443:   fi
                    444: 
                    445:   if test -n "$dir_arg"; then
                    446:     { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
                    447:     { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
                    448:     { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
                    449:       test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
                    450:   else
                    451: 
                    452:     # Make a couple of temp file names in the proper directory.
                    453:     dsttmp=$dstdir/_inst.$$_
                    454:     rmtmp=$dstdir/_rm.$$_
                    455: 
                    456:     # Trap to clean up those temp files at exit.
                    457:     trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
                    458: 
                    459:     # Copy the file name to the temp name.
                    460:     (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
                    461: 
                    462:     # and set any options; do chmod last to preserve setuid bits.
                    463:     #
                    464:     # If any of these fail, we abort the whole thing.  If we want to
                    465:     # ignore errors from any of these, just make sure not to ignore
                    466:     # errors from the above "$doit $cpprog $src $dsttmp" command.
                    467:     #
                    468:     { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
                    469:     { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
                    470:     { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
                    471:     { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
                    472: 
                    473:     # If -C, don't bother to copy if it wouldn't change the file.
                    474:     if $copy_on_change &&
1.1.1.4 ! misho     475:        old=`LC_ALL=C ls -dlL "$dst"    2>/dev/null` &&
        !           476:        new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` &&
        !           477: 
        !           478:        eval "$initialize_posix_glob" &&
        !           479:        $posix_glob set -f &&
1.1       misho     480:        set X $old && old=:$2:$4:$5:$6 &&
                    481:        set X $new && new=:$2:$4:$5:$6 &&
1.1.1.4 ! misho     482:        $posix_glob set +f &&
        !           483: 
1.1       misho     484:        test "$old" = "$new" &&
                    485:        $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
                    486:     then
                    487:       rm -f "$dsttmp"
                    488:     else
                    489:       # Rename the file to the real destination.
                    490:       $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
                    491: 
                    492:       # The rename failed, perhaps because mv can't rename something else
                    493:       # to itself, or perhaps because mv is so ancient that it does not
                    494:       # support -f.
                    495:       {
1.1.1.4 ! misho     496:        # Now remove or move aside any old file at destination location.
        !           497:        # We try this two ways since rm can't unlink itself on some
        !           498:        # systems and the destination file might be busy for other
        !           499:        # reasons.  In this case, the final cleanup might fail but the new
        !           500:        # file should still install successfully.
        !           501:        {
        !           502:          test ! -f "$dst" ||
        !           503:          $doit $rmcmd -f "$dst" 2>/dev/null ||
        !           504:          { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
        !           505:            { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
        !           506:          } ||
        !           507:          { echo "$0: cannot unlink or rename $dst" >&2
        !           508:            (exit 1); exit 1
        !           509:          }
        !           510:        } &&
1.1       misho     511: 
1.1.1.4 ! misho     512:        # Now rename the file to the real destination.
        !           513:        $doit $mvcmd "$dsttmp" "$dst"
1.1       misho     514:       }
                    515:     fi || exit 1
                    516: 
                    517:     trap '' 0
                    518:   fi
                    519: done
                    520: 
                    521: # Local variables:
                    522: # eval: (add-hook 'write-file-hooks 'time-stamp)
                    523: # time-stamp-start: "scriptversion="
                    524: # time-stamp-format: "%:y-%02m-%02d.%02H"
                    525: # time-stamp-time-zone: "UTC"
                    526: # time-stamp-end: "; # UTC"
                    527: # End:

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