Annotation of embedaddon/dhcping/install-sh, revision 1.1
1.1 ! misho 1: #!/bin/sh
! 2: #
! 3: # install - install a program, script, or datafile
! 4: # This comes from X11R5 (mit/util/scripts/install.sh).
! 5: #
! 6: # Copyright 1991 by the Massachusetts Institute of Technology
! 7: #
! 8: # Permission to use, copy, modify, distribute, and sell this software and its
! 9: # documentation for any purpose is hereby granted without fee, provided that
! 10: # the above copyright notice appear in all copies and that both that
! 11: # copyright notice and this permission notice appear in supporting
! 12: # documentation, and that the name of M.I.T. not be used in advertising or
! 13: # publicity pertaining to distribution of the software without specific,
! 14: # written prior permission. M.I.T. makes no representations about the
! 15: # suitability of this software for any purpose. It is provided "as is"
! 16: # without express or implied warranty.
! 17: #
! 18: # Calling this script install-sh is preferred over install.sh, to prevent
! 19: # `make' implicit rules from creating a file called install from it
! 20: # when there is no Makefile.
! 21: #
! 22: # This script is compatible with the BSD install script, but was written
! 23: # from scratch. It can only install one file at a time, a restriction
! 24: # shared with many OS's install programs.
! 25:
! 26:
! 27: # set DOITPROG to echo to test this script
! 28:
! 29: # Don't use :- since 4.3BSD and earlier shells don't like it.
! 30: doit="${DOITPROG-}"
! 31:
! 32:
! 33: # put in absolute paths if you don't have them in your path; or use env. vars.
! 34:
! 35: mvprog="${MVPROG-mv}"
! 36: cpprog="${CPPROG-cp}"
! 37: chmodprog="${CHMODPROG-chmod}"
! 38: chownprog="${CHOWNPROG-chown}"
! 39: chgrpprog="${CHGRPPROG-chgrp}"
! 40: stripprog="${STRIPPROG-strip}"
! 41: rmprog="${RMPROG-rm}"
! 42: mkdirprog="${MKDIRPROG-mkdir}"
! 43:
! 44: transformbasename=""
! 45: transform_arg=""
! 46: instcmd="$mvprog"
! 47: chmodcmd="$chmodprog 0755"
! 48: chowncmd=""
! 49: chgrpcmd=""
! 50: stripcmd=""
! 51: rmcmd="$rmprog -f"
! 52: mvcmd="$mvprog"
! 53: src=""
! 54: dst=""
! 55: dir_arg=""
! 56:
! 57: while [ x"$1" != x ]; do
! 58: case $1 in
! 59: -c) instcmd="$cpprog"
! 60: shift
! 61: continue;;
! 62:
! 63: -d) dir_arg=true
! 64: shift
! 65: continue;;
! 66:
! 67: -m) chmodcmd="$chmodprog $2"
! 68: shift
! 69: shift
! 70: continue;;
! 71:
! 72: -o) chowncmd="$chownprog $2"
! 73: shift
! 74: shift
! 75: continue;;
! 76:
! 77: -g) chgrpcmd="$chgrpprog $2"
! 78: shift
! 79: shift
! 80: continue;;
! 81:
! 82: -s) stripcmd="$stripprog"
! 83: shift
! 84: continue;;
! 85:
! 86: -t=*) transformarg=`echo $1 | sed 's/-t=//'`
! 87: shift
! 88: continue;;
! 89:
! 90: -b=*) transformbasename=`echo $1 | sed 's/-b=//'`
! 91: shift
! 92: continue;;
! 93:
! 94: *) if [ x"$src" = x ]
! 95: then
! 96: src=$1
! 97: else
! 98: # this colon is to work around a 386BSD /bin/sh bug
! 99: :
! 100: dst=$1
! 101: fi
! 102: shift
! 103: continue;;
! 104: esac
! 105: done
! 106:
! 107: if [ x"$src" = x ]
! 108: then
! 109: echo "install: no input file specified"
! 110: exit 1
! 111: else
! 112: :
! 113: fi
! 114:
! 115: if [ x"$dir_arg" != x ]; then
! 116: dst=$src
! 117: src=""
! 118:
! 119: if [ -d $dst ]; then
! 120: instcmd=:
! 121: chmodcmd=""
! 122: else
! 123: instcmd=$mkdirprog
! 124: fi
! 125: else
! 126:
! 127: # Waiting for this to be detected by the "$instcmd $src $dsttmp" command
! 128: # might cause directories to be created, which would be especially bad
! 129: # if $src (and thus $dsttmp) contains '*'.
! 130:
! 131: if [ -f $src -o -d $src ]
! 132: then
! 133: :
! 134: else
! 135: echo "install: $src does not exist"
! 136: exit 1
! 137: fi
! 138:
! 139: if [ x"$dst" = x ]
! 140: then
! 141: echo "install: no destination specified"
! 142: exit 1
! 143: else
! 144: :
! 145: fi
! 146:
! 147: # If destination is a directory, append the input filename; if your system
! 148: # does not like double slashes in filenames, you may need to add some logic
! 149:
! 150: if [ -d $dst ]
! 151: then
! 152: dst="$dst"/`basename $src`
! 153: else
! 154: :
! 155: fi
! 156: fi
! 157:
! 158: ## this sed command emulates the dirname command
! 159: dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
! 160:
! 161: # Make sure that the destination directory exists.
! 162: # this part is taken from Noah Friedman's mkinstalldirs script
! 163:
! 164: # Skip lots of stat calls in the usual case.
! 165: if [ ! -d "$dstdir" ]; then
! 166: defaultIFS='
! 167: '
! 168: IFS="${IFS-${defaultIFS}}"
! 169:
! 170: oIFS="${IFS}"
! 171: # Some sh's can't handle IFS=/ for some reason.
! 172: IFS='%'
! 173: set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'`
! 174: IFS="${oIFS}"
! 175:
! 176: pathcomp=''
! 177:
! 178: while [ $# -ne 0 ] ; do
! 179: pathcomp="${pathcomp}${1}"
! 180: shift
! 181:
! 182: if [ ! -d "${pathcomp}" ] ;
! 183: then
! 184: $mkdirprog "${pathcomp}"
! 185: else
! 186: :
! 187: fi
! 188:
! 189: pathcomp="${pathcomp}/"
! 190: done
! 191: fi
! 192:
! 193: if [ x"$dir_arg" != x ]
! 194: then
! 195: $doit $instcmd $dst &&
! 196:
! 197: if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else : ; fi &&
! 198: if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else : ; fi &&
! 199: if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else : ; fi &&
! 200: if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else : ; fi
! 201: else
! 202:
! 203: # If we're going to rename the final executable, determine the name now.
! 204:
! 205: if [ x"$transformarg" = x ]
! 206: then
! 207: dstfile=`basename $dst`
! 208: else
! 209: dstfile=`basename $dst $transformbasename |
! 210: sed $transformarg`$transformbasename
! 211: fi
! 212:
! 213: # don't allow the sed command to completely eliminate the filename
! 214:
! 215: if [ x"$dstfile" = x ]
! 216: then
! 217: dstfile=`basename $dst`
! 218: else
! 219: :
! 220: fi
! 221:
! 222: # Make a temp file name in the proper directory.
! 223:
! 224: dsttmp=$dstdir/#inst.$$#
! 225:
! 226: # Move or copy the file name to the temp name
! 227:
! 228: $doit $instcmd $src $dsttmp &&
! 229:
! 230: trap "rm -f ${dsttmp}" 0 &&
! 231:
! 232: # and set any options; do chmod last to preserve setuid bits
! 233:
! 234: # If any of these fail, we abort the whole thing. If we want to
! 235: # ignore errors from any of these, just make sure not to ignore
! 236: # errors from the above "$doit $instcmd $src $dsttmp" command.
! 237:
! 238: if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else :;fi &&
! 239: if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else :;fi &&
! 240: if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else :;fi &&
! 241: if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else :;fi &&
! 242:
! 243: # Now rename the file to the real destination.
! 244:
! 245: $doit $rmcmd -f $dstdir/$dstfile &&
! 246: $doit $mvcmd $dsttmp $dstdir/$dstfile
! 247:
! 248: fi &&
! 249:
! 250:
! 251: exit 0
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