Annotation of embedaddon/ntp/install-sh, revision 1.1
1.1 ! misho 1: #!/bin/sh
! 2: # install - install a program, script, or datafile
! 3:
! 4: scriptversion=2005-05-14.22
! 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. It can only install one file at a time, a restriction
! 43: # shared with many OS's install programs.
! 44:
! 45: # set DOITPROG to echo to test this script
! 46:
! 47: # Don't use :- since 4.3BSD and earlier shells don't like it.
! 48: doit="${DOITPROG-}"
! 49:
! 50: # put in absolute paths if you don't have them in your path; or use env. vars.
! 51:
! 52: mvprog="${MVPROG-mv}"
! 53: cpprog="${CPPROG-cp}"
! 54: chmodprog="${CHMODPROG-chmod}"
! 55: chownprog="${CHOWNPROG-chown}"
! 56: chgrpprog="${CHGRPPROG-chgrp}"
! 57: stripprog="${STRIPPROG-strip}"
! 58: rmprog="${RMPROG-rm}"
! 59: mkdirprog="${MKDIRPROG-mkdir}"
! 60:
! 61: chmodcmd="$chmodprog 0755"
! 62: chowncmd=
! 63: chgrpcmd=
! 64: stripcmd=
! 65: rmcmd="$rmprog -f"
! 66: mvcmd="$mvprog"
! 67: src=
! 68: dst=
! 69: dir_arg=
! 70: dstarg=
! 71: no_target_directory=
! 72:
! 73: usage="Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
! 74: or: $0 [OPTION]... SRCFILES... DIRECTORY
! 75: or: $0 [OPTION]... -t DIRECTORY SRCFILES...
! 76: or: $0 [OPTION]... -d DIRECTORIES...
! 77:
! 78: In the 1st form, copy SRCFILE to DSTFILE.
! 79: In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
! 80: In the 4th, create DIRECTORIES.
! 81:
! 82: Options:
! 83: -c (ignored)
! 84: -d create directories instead of installing files.
! 85: -g GROUP $chgrpprog installed files to GROUP.
! 86: -m MODE $chmodprog installed files to MODE.
! 87: -o USER $chownprog installed files to USER.
! 88: -s $stripprog installed files.
! 89: -t DIRECTORY install into DIRECTORY.
! 90: -T report an error if DSTFILE is a directory.
! 91: --help display this help and exit.
! 92: --version display version info and exit.
! 93:
! 94: Environment variables override the default commands:
! 95: CHGRPPROG CHMODPROG CHOWNPROG CPPROG MKDIRPROG MVPROG RMPROG STRIPPROG
! 96: "
! 97:
! 98: while test -n "$1"; do
! 99: case $1 in
! 100: -c) shift
! 101: continue;;
! 102:
! 103: -d) dir_arg=true
! 104: shift
! 105: continue;;
! 106:
! 107: -g) chgrpcmd="$chgrpprog $2"
! 108: shift
! 109: shift
! 110: continue;;
! 111:
! 112: --help) echo "$usage"; exit $?;;
! 113:
! 114: -m) chmodcmd="$chmodprog $2"
! 115: shift
! 116: shift
! 117: continue;;
! 118:
! 119: -o) chowncmd="$chownprog $2"
! 120: shift
! 121: shift
! 122: continue;;
! 123:
! 124: -s) stripcmd=$stripprog
! 125: shift
! 126: continue;;
! 127:
! 128: -t) dstarg=$2
! 129: shift
! 130: shift
! 131: continue;;
! 132:
! 133: -T) no_target_directory=true
! 134: shift
! 135: continue;;
! 136:
! 137: --version) echo "$0 $scriptversion"; exit $?;;
! 138:
! 139: *) # When -d is used, all remaining arguments are directories to create.
! 140: # When -t is used, the destination is already specified.
! 141: test -n "$dir_arg$dstarg" && break
! 142: # Otherwise, the last argument is the destination. Remove it from $@.
! 143: for arg
! 144: do
! 145: if test -n "$dstarg"; then
! 146: # $@ is not empty: it contains at least $arg.
! 147: set fnord "$@" "$dstarg"
! 148: shift # fnord
! 149: fi
! 150: shift # arg
! 151: dstarg=$arg
! 152: done
! 153: break;;
! 154: esac
! 155: done
! 156:
! 157: if test -z "$1"; then
! 158: if test -z "$dir_arg"; then
! 159: echo "$0: no input file specified." >&2
! 160: exit 1
! 161: fi
! 162: # It's OK to call `install-sh -d' without argument.
! 163: # This can happen when creating conditional directories.
! 164: exit 0
! 165: fi
! 166:
! 167: for src
! 168: do
! 169: # Protect names starting with `-'.
! 170: case $src in
! 171: -*) src=./$src ;;
! 172: esac
! 173:
! 174: if test -n "$dir_arg"; then
! 175: dst=$src
! 176: src=
! 177:
! 178: if test -d "$dst"; then
! 179: mkdircmd=:
! 180: chmodcmd=
! 181: else
! 182: mkdircmd=$mkdirprog
! 183: fi
! 184: else
! 185: # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
! 186: # might cause directories to be created, which would be especially bad
! 187: # if $src (and thus $dsttmp) contains '*'.
! 188: if test ! -f "$src" && test ! -d "$src"; then
! 189: echo "$0: $src does not exist." >&2
! 190: exit 1
! 191: fi
! 192:
! 193: if test -z "$dstarg"; then
! 194: echo "$0: no destination specified." >&2
! 195: exit 1
! 196: fi
! 197:
! 198: dst=$dstarg
! 199: # Protect names starting with `-'.
! 200: case $dst in
! 201: -*) dst=./$dst ;;
! 202: esac
! 203:
! 204: # If destination is a directory, append the input filename; won't work
! 205: # if double slashes aren't ignored.
! 206: if test -d "$dst"; then
! 207: if test -n "$no_target_directory"; then
! 208: echo "$0: $dstarg: Is a directory" >&2
! 209: exit 1
! 210: fi
! 211: dst=$dst/`basename "$src"`
! 212: fi
! 213: fi
! 214:
! 215: # This sed command emulates the dirname command.
! 216: dstdir=`echo "$dst" | sed -e 's,/*$,,;s,[^/]*$,,;s,/*$,,;s,^$,.,'`
! 217:
! 218: # Make sure that the destination directory exists.
! 219:
! 220: # Skip lots of stat calls in the usual case.
! 221: if test ! -d "$dstdir"; then
! 222: defaultIFS='
! 223: '
! 224: IFS="${IFS-$defaultIFS}"
! 225:
! 226: oIFS=$IFS
! 227: # Some sh's can't handle IFS=/ for some reason.
! 228: IFS='%'
! 229: set x `echo "$dstdir" | sed -e 's@/@%@g' -e 's@^%@/@'`
! 230: shift
! 231: IFS=$oIFS
! 232:
! 233: pathcomp=
! 234:
! 235: while test $# -ne 0 ; do
! 236: pathcomp=$pathcomp$1
! 237: shift
! 238: if test ! -d "$pathcomp"; then
! 239: $mkdirprog "$pathcomp"
! 240: # mkdir can fail with a `File exist' error in case several
! 241: # install-sh are creating the directory concurrently. This
! 242: # is OK.
! 243: test -d "$pathcomp" || exit
! 244: fi
! 245: pathcomp=$pathcomp/
! 246: done
! 247: fi
! 248:
! 249: if test -n "$dir_arg"; then
! 250: $doit $mkdircmd "$dst" \
! 251: && { test -z "$chowncmd" || $doit $chowncmd "$dst"; } \
! 252: && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } \
! 253: && { test -z "$stripcmd" || $doit $stripcmd "$dst"; } \
! 254: && { test -z "$chmodcmd" || $doit $chmodcmd "$dst"; }
! 255:
! 256: else
! 257: dstfile=`basename "$dst"`
! 258:
! 259: # Make a couple of temp file names in the proper directory.
! 260: dsttmp=$dstdir/_inst.$$_
! 261: rmtmp=$dstdir/_rm.$$_
! 262:
! 263: # Trap to clean up those temp files at exit.
! 264: trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
! 265: trap '(exit $?); exit' 1 2 13 15
! 266:
! 267: # Copy the file name to the temp name.
! 268: $doit $cpprog "$src" "$dsttmp" &&
! 269:
! 270: # and set any options; do chmod last to preserve setuid bits.
! 271: #
! 272: # If any of these fail, we abort the whole thing. If we want to
! 273: # ignore errors from any of these, just make sure not to ignore
! 274: # errors from the above "$doit $cpprog $src $dsttmp" command.
! 275: #
! 276: { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } \
! 277: && { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } \
! 278: && { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } \
! 279: && { test -z "$chmodcmd" || $doit $chmodcmd "$dsttmp"; } &&
! 280:
! 281: # Now rename the file to the real destination.
! 282: { $doit $mvcmd -f "$dsttmp" "$dstdir/$dstfile" 2>/dev/null \
! 283: || {
! 284: # The rename failed, perhaps because mv can't rename something else
! 285: # to itself, or perhaps because mv is so ancient that it does not
! 286: # support -f.
! 287:
! 288: # Now remove or move aside any old file at destination location.
! 289: # We try this two ways since rm can't unlink itself on some
! 290: # systems and the destination file might be busy for other
! 291: # reasons. In this case, the final cleanup might fail but the new
! 292: # file should still install successfully.
! 293: {
! 294: if test -f "$dstdir/$dstfile"; then
! 295: $doit $rmcmd -f "$dstdir/$dstfile" 2>/dev/null \
! 296: || $doit $mvcmd -f "$dstdir/$dstfile" "$rmtmp" 2>/dev/null \
! 297: || {
! 298: echo "$0: cannot unlink or rename $dstdir/$dstfile" >&2
! 299: (exit 1); exit 1
! 300: }
! 301: else
! 302: :
! 303: fi
! 304: } &&
! 305:
! 306: # Now rename the file to the real destination.
! 307: $doit $mvcmd "$dsttmp" "$dstdir/$dstfile"
! 308: }
! 309: }
! 310: fi || { (exit 1); exit 1; }
! 311: done
! 312:
! 313: # The final little trick to "correctly" pass the exit status to the exit trap.
! 314: {
! 315: (exit 0); exit 0
! 316: }
! 317:
! 318: # Local variables:
! 319: # eval: (add-hook 'write-file-hooks 'time-stamp)
! 320: # time-stamp-start: "scriptversion="
! 321: # time-stamp-format: "%:y-%02m-%02d.%02H"
! 322: # time-stamp-end: "$"
! 323: # End:
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