Annotation of embedaddon/tmux/etc/install-sh, revision 1.1.1.1

1.1       misho       1: #!/bin/sh
                      2: # install - install a program, script, or datafile
                      3: 
                      4: scriptversion=2013-12-25.23; # 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: tab='  '
                     45: nl='
                     46: '
                     47: IFS=" $tab$nl"
                     48: 
                     49: # Set DOITPROG to "echo" to test this script.
                     50: 
                     51: doit=${DOITPROG-}
                     52: doit_exec=${doit:-exec}
                     53: 
                     54: # Put in absolute file names if you don't have them in your path;
                     55: # or use environment vars.
                     56: 
                     57: chgrpprog=${CHGRPPROG-chgrp}
                     58: chmodprog=${CHMODPROG-chmod}
                     59: chownprog=${CHOWNPROG-chown}
                     60: cmpprog=${CMPPROG-cmp}
                     61: cpprog=${CPPROG-cp}
                     62: mkdirprog=${MKDIRPROG-mkdir}
                     63: mvprog=${MVPROG-mv}
                     64: rmprog=${RMPROG-rm}
                     65: stripprog=${STRIPPROG-strip}
                     66: 
                     67: posix_mkdir=
                     68: 
                     69: # Desired mode of installed file.
                     70: mode=0755
                     71: 
                     72: chgrpcmd=
                     73: chmodcmd=$chmodprog
                     74: chowncmd=
                     75: mvcmd=$mvprog
                     76: rmcmd="$rmprog -f"
                     77: stripcmd=
                     78: 
                     79: src=
                     80: dst=
                     81: dir_arg=
                     82: dst_arg=
                     83: 
                     84: copy_on_change=false
                     85: is_target_a_directory=possibly
                     86: 
                     87: usage="\
                     88: Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
                     89:    or: $0 [OPTION]... SRCFILES... DIRECTORY
                     90:    or: $0 [OPTION]... -t DIRECTORY SRCFILES...
                     91:    or: $0 [OPTION]... -d DIRECTORIES...
                     92: 
                     93: In the 1st form, copy SRCFILE to DSTFILE.
                     94: In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
                     95: In the 4th, create DIRECTORIES.
                     96: 
                     97: Options:
                     98:      --help     display this help and exit.
                     99:      --version  display version info and exit.
                    100: 
                    101:   -c            (ignored)
                    102:   -C            install only if different (preserve the last data modification time)
                    103:   -d            create directories instead of installing files.
                    104:   -g GROUP      $chgrpprog installed files to GROUP.
                    105:   -m MODE       $chmodprog installed files to MODE.
                    106:   -o USER       $chownprog installed files to USER.
                    107:   -s            $stripprog installed files.
                    108:   -t DIRECTORY  install into DIRECTORY.
                    109:   -T            report an error if DSTFILE is a directory.
                    110: 
                    111: Environment variables override the default commands:
                    112:   CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
                    113:   RMPROG STRIPPROG
                    114: "
                    115: 
                    116: while test $# -ne 0; do
                    117:   case $1 in
                    118:     -c) ;;
                    119: 
                    120:     -C) copy_on_change=true;;
                    121: 
                    122:     -d) dir_arg=true;;
                    123: 
                    124:     -g) chgrpcmd="$chgrpprog $2"
                    125:         shift;;
                    126: 
                    127:     --help) echo "$usage"; exit $?;;
                    128: 
                    129:     -m) mode=$2
                    130:         case $mode in
                    131:           *' '* | *"$tab"* | *"$nl"* | *'*'* | *'?'* | *'['*)
                    132:             echo "$0: invalid mode: $mode" >&2
                    133:             exit 1;;
                    134:         esac
                    135:         shift;;
                    136: 
                    137:     -o) chowncmd="$chownprog $2"
                    138:         shift;;
                    139: 
                    140:     -s) stripcmd=$stripprog;;
                    141: 
                    142:     -t)
                    143:         is_target_a_directory=always
                    144:         dst_arg=$2
                    145:         # Protect names problematic for 'test' and other utilities.
                    146:         case $dst_arg in
                    147:           -* | [=\(\)!]) dst_arg=./$dst_arg;;
                    148:         esac
                    149:         shift;;
                    150: 
                    151:     -T) is_target_a_directory=never;;
                    152: 
                    153:     --version) echo "$0 $scriptversion"; exit $?;;
                    154: 
                    155:     --) shift
                    156:         break;;
                    157: 
                    158:     -*) echo "$0: invalid option: $1" >&2
                    159:         exit 1;;
                    160: 
                    161:     *)  break;;
                    162:   esac
                    163:   shift
                    164: done
                    165: 
                    166: # We allow the use of options -d and -T together, by making -d
                    167: # take the precedence; this is for compatibility with GNU install.
                    168: 
                    169: if test -n "$dir_arg"; then
                    170:   if test -n "$dst_arg"; then
                    171:     echo "$0: target directory not allowed when installing a directory." >&2
                    172:     exit 1
                    173:   fi
                    174: fi
                    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:     # Protect names problematic for 'test' and other utilities.
                    190:     case $dst_arg in
                    191:       -* | [=\(\)!]) dst_arg=./$dst_arg;;
                    192:     esac
                    193:   done
                    194: fi
                    195: 
                    196: if test $# -eq 0; then
                    197:   if test -z "$dir_arg"; then
                    198:     echo "$0: no input file specified." >&2
                    199:     exit 1
                    200:   fi
                    201:   # It's OK to call 'install-sh -d' without argument.
                    202:   # This can happen when creating conditional directories.
                    203:   exit 0
                    204: fi
                    205: 
                    206: if test -z "$dir_arg"; then
                    207:   if test $# -gt 1 || test "$is_target_a_directory" = always; then
                    208:     if test ! -d "$dst_arg"; then
                    209:       echo "$0: $dst_arg: Is not a directory." >&2
                    210:       exit 1
                    211:     fi
                    212:   fi
                    213: fi
                    214: 
                    215: if test -z "$dir_arg"; then
                    216:   do_exit='(exit $ret); exit $ret'
                    217:   trap "ret=129; $do_exit" 1
                    218:   trap "ret=130; $do_exit" 2
                    219:   trap "ret=141; $do_exit" 13
                    220:   trap "ret=143; $do_exit" 15
                    221: 
                    222:   # Set umask so as not to create temps with too-generous modes.
                    223:   # However, 'strip' requires both read and write access to temps.
                    224:   case $mode in
                    225:     # Optimize common cases.
                    226:     *644) cp_umask=133;;
                    227:     *755) cp_umask=22;;
                    228: 
                    229:     *[0-7])
                    230:       if test -z "$stripcmd"; then
                    231:         u_plus_rw=
                    232:       else
                    233:         u_plus_rw='% 200'
                    234:       fi
                    235:       cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
                    236:     *)
                    237:       if test -z "$stripcmd"; then
                    238:         u_plus_rw=
                    239:       else
                    240:         u_plus_rw=,u+rw
                    241:       fi
                    242:       cp_umask=$mode$u_plus_rw;;
                    243:   esac
                    244: fi
                    245: 
                    246: for src
                    247: do
                    248:   # Protect names problematic for 'test' and other utilities.
                    249:   case $src in
                    250:     -* | [=\(\)!]) src=./$src;;
                    251:   esac
                    252: 
                    253:   if test -n "$dir_arg"; then
                    254:     dst=$src
                    255:     dstdir=$dst
                    256:     test -d "$dstdir"
                    257:     dstdir_status=$?
                    258:   else
                    259: 
                    260:     # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
                    261:     # might cause directories to be created, which would be especially bad
                    262:     # if $src (and thus $dsttmp) contains '*'.
                    263:     if test ! -f "$src" && test ! -d "$src"; then
                    264:       echo "$0: $src does not exist." >&2
                    265:       exit 1
                    266:     fi
                    267: 
                    268:     if test -z "$dst_arg"; then
                    269:       echo "$0: no destination specified." >&2
                    270:       exit 1
                    271:     fi
                    272:     dst=$dst_arg
                    273: 
                    274:     # If destination is a directory, append the input filename; won't work
                    275:     # if double slashes aren't ignored.
                    276:     if test -d "$dst"; then
                    277:       if test "$is_target_a_directory" = never; then
                    278:         echo "$0: $dst_arg: Is a directory" >&2
                    279:         exit 1
                    280:       fi
                    281:       dstdir=$dst
                    282:       dst=$dstdir/`basename "$src"`
                    283:       dstdir_status=0
                    284:     else
                    285:       dstdir=`dirname "$dst"`
                    286:       test -d "$dstdir"
                    287:       dstdir_status=$?
                    288:     fi
                    289:   fi
                    290: 
                    291:   obsolete_mkdir_used=false
                    292: 
                    293:   if test $dstdir_status != 0; then
                    294:     case $posix_mkdir in
                    295:       '')
                    296:         # Create intermediate dirs using mode 755 as modified by the umask.
                    297:         # This is like FreeBSD 'install' as of 1997-10-28.
                    298:         umask=`umask`
                    299:         case $stripcmd.$umask in
                    300:           # Optimize common cases.
                    301:           *[2367][2367]) mkdir_umask=$umask;;
                    302:           .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
                    303: 
                    304:           *[0-7])
                    305:             mkdir_umask=`expr $umask + 22 \
                    306:               - $umask % 100 % 40 + $umask % 20 \
                    307:               - $umask % 10 % 4 + $umask % 2
                    308:             `;;
                    309:           *) mkdir_umask=$umask,go-w;;
                    310:         esac
                    311: 
                    312:         # With -d, create the new directory with the user-specified mode.
                    313:         # Otherwise, rely on $mkdir_umask.
                    314:         if test -n "$dir_arg"; then
                    315:           mkdir_mode=-m$mode
                    316:         else
                    317:           mkdir_mode=
                    318:         fi
                    319: 
                    320:         posix_mkdir=false
                    321:         case $umask in
                    322:           *[123567][0-7][0-7])
                    323:             # POSIX mkdir -p sets u+wx bits regardless of umask, which
                    324:             # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
                    325:             ;;
                    326:           *)
                    327:             tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
                    328:             trap 'ret=$?; rmdir "$tmpdir/d" "$tmpdir" 2>/dev/null; exit $ret' 0
                    329: 
                    330:             if (umask $mkdir_umask &&
                    331:                 exec $mkdirprog $mkdir_mode -p -- "$tmpdir/d") >/dev/null 2>&1
                    332:             then
                    333:               if test -z "$dir_arg" || {
                    334:                    # Check for POSIX incompatibilities with -m.
                    335:                    # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
                    336:                    # other-writable bit of parent directory when it shouldn't.
                    337:                    # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
                    338:                    ls_ld_tmpdir=`ls -ld "$tmpdir"`
                    339:                    case $ls_ld_tmpdir in
                    340:                      d????-?r-*) different_mode=700;;
                    341:                      d????-?--*) different_mode=755;;
                    342:                      *) false;;
                    343:                    esac &&
                    344:                    $mkdirprog -m$different_mode -p -- "$tmpdir" && {
                    345:                      ls_ld_tmpdir_1=`ls -ld "$tmpdir"`
                    346:                      test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
                    347:                    }
                    348:                  }
                    349:               then posix_mkdir=:
                    350:               fi
                    351:               rmdir "$tmpdir/d" "$tmpdir"
                    352:             else
                    353:               # Remove any dirs left behind by ancient mkdir implementations.
                    354:               rmdir ./$mkdir_mode ./-p ./-- 2>/dev/null
                    355:             fi
                    356:             trap '' 0;;
                    357:         esac;;
                    358:     esac
                    359: 
                    360:     if
                    361:       $posix_mkdir && (
                    362:         umask $mkdir_umask &&
                    363:         $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
                    364:       )
                    365:     then :
                    366:     else
                    367: 
                    368:       # The umask is ridiculous, or mkdir does not conform to POSIX,
                    369:       # or it failed possibly due to a race condition.  Create the
                    370:       # directory the slow way, step by step, checking for races as we go.
                    371: 
                    372:       case $dstdir in
                    373:         /*) prefix='/';;
                    374:         [-=\(\)!]*) prefix='./';;
                    375:         *)  prefix='';;
                    376:       esac
                    377: 
                    378:       oIFS=$IFS
                    379:       IFS=/
                    380:       set -f
                    381:       set fnord $dstdir
                    382:       shift
                    383:       set +f
                    384:       IFS=$oIFS
                    385: 
                    386:       prefixes=
                    387: 
                    388:       for d
                    389:       do
                    390:         test X"$d" = X && continue
                    391: 
                    392:         prefix=$prefix$d
                    393:         if test -d "$prefix"; then
                    394:           prefixes=
                    395:         else
                    396:           if $posix_mkdir; then
                    397:             (umask=$mkdir_umask &&
                    398:              $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
                    399:             # Don't fail if two instances are running concurrently.
                    400:             test -d "$prefix" || exit 1
                    401:           else
                    402:             case $prefix in
                    403:               *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
                    404:               *) qprefix=$prefix;;
                    405:             esac
                    406:             prefixes="$prefixes '$qprefix'"
                    407:           fi
                    408:         fi
                    409:         prefix=$prefix/
                    410:       done
                    411: 
                    412:       if test -n "$prefixes"; then
                    413:         # Don't fail if two instances are running concurrently.
                    414:         (umask $mkdir_umask &&
                    415:          eval "\$doit_exec \$mkdirprog $prefixes") ||
                    416:           test -d "$dstdir" || exit 1
                    417:         obsolete_mkdir_used=true
                    418:       fi
                    419:     fi
                    420:   fi
                    421: 
                    422:   if test -n "$dir_arg"; then
                    423:     { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
                    424:     { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
                    425:     { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
                    426:       test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
                    427:   else
                    428: 
                    429:     # Make a couple of temp file names in the proper directory.
                    430:     dsttmp=$dstdir/_inst.$$_
                    431:     rmtmp=$dstdir/_rm.$$_
                    432: 
                    433:     # Trap to clean up those temp files at exit.
                    434:     trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
                    435: 
                    436:     # Copy the file name to the temp name.
                    437:     (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
                    438: 
                    439:     # and set any options; do chmod last to preserve setuid bits.
                    440:     #
                    441:     # If any of these fail, we abort the whole thing.  If we want to
                    442:     # ignore errors from any of these, just make sure not to ignore
                    443:     # errors from the above "$doit $cpprog $src $dsttmp" command.
                    444:     #
                    445:     { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
                    446:     { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
                    447:     { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
                    448:     { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
                    449: 
                    450:     # If -C, don't bother to copy if it wouldn't change the file.
                    451:     if $copy_on_change &&
                    452:        old=`LC_ALL=C ls -dlL "$dst"     2>/dev/null` &&
                    453:        new=`LC_ALL=C ls -dlL "$dsttmp"  2>/dev/null` &&
                    454:        set -f &&
                    455:        set X $old && old=:$2:$4:$5:$6 &&
                    456:        set X $new && new=:$2:$4:$5:$6 &&
                    457:        set +f &&
                    458:        test "$old" = "$new" &&
                    459:        $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
                    460:     then
                    461:       rm -f "$dsttmp"
                    462:     else
                    463:       # Rename the file to the real destination.
                    464:       $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
                    465: 
                    466:       # The rename failed, perhaps because mv can't rename something else
                    467:       # to itself, or perhaps because mv is so ancient that it does not
                    468:       # support -f.
                    469:       {
                    470:         # Now remove or move aside any old file at destination location.
                    471:         # We try this two ways since rm can't unlink itself on some
                    472:         # systems and the destination file might be busy for other
                    473:         # reasons.  In this case, the final cleanup might fail but the new
                    474:         # file should still install successfully.
                    475:         {
                    476:           test ! -f "$dst" ||
                    477:           $doit $rmcmd -f "$dst" 2>/dev/null ||
                    478:           { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
                    479:             { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
                    480:           } ||
                    481:           { echo "$0: cannot unlink or rename $dst" >&2
                    482:             (exit 1); exit 1
                    483:           }
                    484:         } &&
                    485: 
                    486:         # Now rename the file to the real destination.
                    487:         $doit $mvcmd "$dsttmp" "$dst"
                    488:       }
                    489:     fi || exit 1
                    490: 
                    491:     trap '' 0
                    492:   fi
                    493: done
                    494: 
                    495: # Local variables:
                    496: # eval: (add-hook 'write-file-hooks 'time-stamp)
                    497: # time-stamp-start: "scriptversion="
                    498: # time-stamp-format: "%:y-%02m-%02d.%02H"
                    499: # time-stamp-time-zone: "UTC"
                    500: # time-stamp-end: "; # UTC"
                    501: # End:

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