Annotation of dgamelaunch-openbsd/install-sh, Revision 1.1
1.1 ! rubenllo 1: #!/bin/sh
! 2: #
! 3: # install - install a program, script, or datafile
! 4: #
! 5: # This originates from X11R5 (mit/util/scripts/install.sh), which was
! 6: # later released in X11R6 (xc/config/util/install.sh) with the
! 7: # following copyright and license.
! 8: #
! 9: # Copyright (C) 1994 X Consortium
! 10: #
! 11: # Permission is hereby granted, free of charge, to any person obtaining a copy
! 12: # of this software and associated documentation files (the "Software"), to
! 13: # deal in the Software without restriction, including without limitation the
! 14: # rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
! 15: # sell copies of the Software, and to permit persons to whom the Software is
! 16: # furnished to do so, subject to the following conditions:
! 17: #
! 18: # The above copyright notice and this permission notice shall be included in
! 19: # all copies or substantial portions of the Software.
! 20: #
! 21: # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
! 22: # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
! 23: # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
! 24: # X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
! 25: # AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
! 26: # TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
! 27: #
! 28: # Except as contained in this notice, the name of the X Consortium shall not
! 29: # be used in advertising or otherwise to promote the sale, use or other deal-
! 30: # ings in this Software without prior written authorization from the X Consor-
! 31: # tium.
! 32: #
! 33: #
! 34: # FSF changes to this file are in the public domain.
! 35: #
! 36: # Calling this script install-sh is preferred over install.sh, to prevent
! 37: # `make' implicit rules from creating a file called install from it
! 38: # when there is no Makefile.
! 39: #
! 40: # This script is compatible with the BSD install script, but was written
! 41: # from scratch. It can only install one file at a time, a restriction
! 42: # shared with many OS's install programs.
! 43:
! 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="${DOITPROG-}"
! 49:
! 50:
! 51: # put in absolute paths if you don't have them in your path; or use env. vars.
! 52:
! 53: mvprog="${MVPROG-mv}"
! 54: cpprog="${CPPROG-cp}"
! 55: chmodprog="${CHMODPROG-chmod}"
! 56: chownprog="${CHOWNPROG-chown}"
! 57: chgrpprog="${CHGRPPROG-chgrp}"
! 58: stripprog="${STRIPPROG-strip}"
! 59: rmprog="${RMPROG-rm}"
! 60: mkdirprog="${MKDIRPROG-mkdir}"
! 61:
! 62: transformbasename=""
! 63: transform_arg=""
! 64: instcmd="$mvprog"
! 65: chmodcmd="$chmodprog 0755"
! 66: chowncmd=""
! 67: chgrpcmd=""
! 68: stripcmd=""
! 69: rmcmd="$rmprog -f"
! 70: mvcmd="$mvprog"
! 71: src=""
! 72: dst=""
! 73: dir_arg=""
! 74:
! 75: while [ x"$1" != x ]; do
! 76: case $1 in
! 77: -c) instcmd=$cpprog
! 78: shift
! 79: continue;;
! 80:
! 81: -d) dir_arg=true
! 82: shift
! 83: continue;;
! 84:
! 85: -m) chmodcmd="$chmodprog $2"
! 86: shift
! 87: shift
! 88: continue;;
! 89:
! 90: -o) chowncmd="$chownprog $2"
! 91: shift
! 92: shift
! 93: continue;;
! 94:
! 95: -g) chgrpcmd="$chgrpprog $2"
! 96: shift
! 97: shift
! 98: continue;;
! 99:
! 100: -s) stripcmd=$stripprog
! 101: shift
! 102: continue;;
! 103:
! 104: -t=*) transformarg=`echo $1 | sed 's/-t=//'`
! 105: shift
! 106: continue;;
! 107:
! 108: -b=*) transformbasename=`echo $1 | sed 's/-b=//'`
! 109: shift
! 110: continue;;
! 111:
! 112: *) if [ x"$src" = x ]
! 113: then
! 114: src=$1
! 115: else
! 116: # this colon is to work around a 386BSD /bin/sh bug
! 117: :
! 118: dst=$1
! 119: fi
! 120: shift
! 121: continue;;
! 122: esac
! 123: done
! 124:
! 125: if [ x"$src" = x ]
! 126: then
! 127: echo "$0: no input file specified" >&2
! 128: exit 1
! 129: else
! 130: :
! 131: fi
! 132:
! 133: if [ x"$dir_arg" != x ]; then
! 134: dst=$src
! 135: src=""
! 136:
! 137: if [ -d "$dst" ]; then
! 138: instcmd=:
! 139: chmodcmd=""
! 140: else
! 141: instcmd=$mkdirprog
! 142: fi
! 143: else
! 144:
! 145: # Waiting for this to be detected by the "$instcmd $src $dsttmp" command
! 146: # might cause directories to be created, which would be especially bad
! 147: # if $src (and thus $dsttmp) contains '*'.
! 148:
! 149: if [ -f "$src" ] || [ -d "$src" ]
! 150: then
! 151: :
! 152: else
! 153: echo "$0: $src does not exist" >&2
! 154: exit 1
! 155: fi
! 156:
! 157: if [ x"$dst" = x ]
! 158: then
! 159: echo "$0: no destination specified" >&2
! 160: exit 1
! 161: else
! 162: :
! 163: fi
! 164:
! 165: # If destination is a directory, append the input filename; if your system
! 166: # does not like double slashes in filenames, you may need to add some logic
! 167:
! 168: if [ -d "$dst" ]
! 169: then
! 170: dst=$dst/`basename "$src"`
! 171: else
! 172: :
! 173: fi
! 174: fi
! 175:
! 176: ## this sed command emulates the dirname command
! 177: dstdir=`echo "$dst" | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
! 178:
! 179: # Make sure that the destination directory exists.
! 180: # this part is taken from Noah Friedman's mkinstalldirs script
! 181:
! 182: # Skip lots of stat calls in the usual case.
! 183: if [ ! -d "$dstdir" ]; then
! 184: defaultIFS='
! 185: '
! 186: IFS="${IFS-$defaultIFS}"
! 187:
! 188: oIFS=$IFS
! 189: # Some sh's can't handle IFS=/ for some reason.
! 190: IFS='%'
! 191: set - `echo "$dstdir" | sed -e 's@/@%@g' -e 's@^%@/@'`
! 192: IFS=$oIFS
! 193:
! 194: pathcomp=''
! 195:
! 196: while [ $# -ne 0 ] ; do
! 197: pathcomp=$pathcomp$1
! 198: shift
! 199:
! 200: if [ ! -d "$pathcomp" ] ;
! 201: then
! 202: $mkdirprog "$pathcomp"
! 203: else
! 204: :
! 205: fi
! 206:
! 207: pathcomp=$pathcomp/
! 208: done
! 209: fi
! 210:
! 211: if [ x"$dir_arg" != x ]
! 212: then
! 213: $doit $instcmd "$dst" &&
! 214:
! 215: if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dst"; else : ; fi &&
! 216: if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dst"; else : ; fi &&
! 217: if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dst"; else : ; fi &&
! 218: if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dst"; else : ; fi
! 219: else
! 220:
! 221: # If we're going to rename the final executable, determine the name now.
! 222:
! 223: if [ x"$transformarg" = x ]
! 224: then
! 225: dstfile=`basename "$dst"`
! 226: else
! 227: dstfile=`basename "$dst" $transformbasename |
! 228: sed $transformarg`$transformbasename
! 229: fi
! 230:
! 231: # don't allow the sed command to completely eliminate the filename
! 232:
! 233: if [ x"$dstfile" = x ]
! 234: then
! 235: dstfile=`basename "$dst"`
! 236: else
! 237: :
! 238: fi
! 239:
! 240: # Make a couple of temp file names in the proper directory.
! 241:
! 242: dsttmp=$dstdir/_inst.$$_
! 243: rmtmp=$dstdir/_rm.$$_
! 244:
! 245: # Trap to clean up temp files at exit.
! 246:
! 247: trap 'status=$?; rm -f "$dsttmp" "$rmtmp" && exit $status' 0
! 248: trap '(exit $?); exit' 1 2 13 15
! 249:
! 250: # Move or copy the file name to the temp name
! 251:
! 252: $doit $instcmd "$src" "$dsttmp" &&
! 253:
! 254: # and set any options; do chmod last to preserve setuid bits
! 255:
! 256: # If any of these fail, we abort the whole thing. If we want to
! 257: # ignore errors from any of these, just make sure not to ignore
! 258: # errors from the above "$doit $instcmd $src $dsttmp" command.
! 259:
! 260: if [ x"$chowncmd" != x ]; then $doit $chowncmd "$dsttmp"; else :;fi &&
! 261: if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd "$dsttmp"; else :;fi &&
! 262: if [ x"$stripcmd" != x ]; then $doit $stripcmd "$dsttmp"; else :;fi &&
! 263: if [ x"$chmodcmd" != x ]; then $doit $chmodcmd "$dsttmp"; else :;fi &&
! 264:
! 265: # Now remove or move aside any old file at destination location. We try this
! 266: # two ways since rm can't unlink itself on some systems and the destination
! 267: # file might be busy for other reasons. In this case, the final cleanup
! 268: # might fail but the new file should still install successfully.
! 269:
! 270: {
! 271: if [ -f "$dstdir/$dstfile" ]
! 272: then
! 273: $doit $rmcmd -f "$dstdir/$dstfile" 2>/dev/null ||
! 274: $doit $mvcmd -f "$dstdir/$dstfile" "$rmtmp" 2>/dev/null ||
! 275: {
! 276: echo "$0: cannot unlink or rename $dstdir/$dstfile" >&2
! 277: (exit 1); exit
! 278: }
! 279: else
! 280: :
! 281: fi
! 282: } &&
! 283:
! 284: # Now rename the file to the real destination.
! 285:
! 286: $doit $mvcmd "$dsttmp" "$dstdir/$dstfile"
! 287:
! 288: fi &&
! 289:
! 290: # The final little trick to "correctly" pass the exit status to the exit trap.
! 291:
! 292: {
! 293: (exit 0); exit
! 294: }
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