regina/install-sh

   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 #
  31 # Modified 1 Feb 2000 MHES to cater for mkdir -p
  32 #
  33 doit="${DOITPROG-}"
  34
  35
  36 # put in absolute paths if you don't have them in your path; or use env. vars.
  37
  38 mvprog="${MVPROG-mv}"
  39 cpprog="${CPPROG-cp}"
  40 chmodprog="${CHMODPROG-chmod}"
  41 chownprog="${CHOWNPROG-chown}"
  42 chgrpprog="${CHGRPPROG-chgrp}"
  43 stripprog="${STRIPPROG-strip}"
  44 rmprog="${RMPROG-rm}"
  45 mkdirprog="${MKDIRPROG-mkdir}"
  46
  47 transformbasename=""
  48 transform_arg=""
  49 instcmd="$mvprog"
  50 chmodcmd="$chmodprog 0755"
  51 chowncmd=""
  52 chgrpcmd=""
  53 stripcmd=""
  54 rmcmd="$rmprog -f"
  55 mvcmd="$mvprog"
  56 mkdircmd="$mkdirprog -p"
  57 src=""
  58 dst=""
  59 dir_arg=""
  60
  61 while [ x"$1" != x ]; do
  62     case $1 in
  63         -c) instcmd="$cpprog"
  64             shift
  65             continue;;
  66
  67         -d) dir_arg=true
  68             shift
  69             continue;;
  70
  71         -m) chmodcmd="$chmodprog $2"
  72             shift
  73             shift
  74             continue;;
  75
  76         -o) chowncmd="$chownprog $2"
  77             shift
  78             shift
  79             continue;;
  80
  81         -g) chgrpcmd="$chgrpprog $2"
  82             shift
  83             shift
  84             continue;;
  85
  86         -s) stripcmd="$stripprog"
  87             shift
  88             continue;;
  89
  90         -t=*) transformarg=`echo $1 | sed 's/-t=//'`
  91             shift
  92             continue;;
  93
  94         -b=*) transformbasename=`echo $1 | sed 's/-b=//'`
  95             shift
  96             continue;;
  97
  98         *)  if [ x"$src" = x ]
  99             then
 100                 src=$1
 101             else
 102                 # this colon is to work around a 386BSD /bin/sh bug
 103                 :
 104                 dst=$1
 105             fi
 106             shift
 107             continue;;
 108     esac
 109 done
 110
 111 if [ x"$src" = x ]
 112 then
 113         echo "install:  no input file specified"
 114         exit 1
 115 else
 116         true
 117 fi
 118
 119 if [ x"$dir_arg" != x ]; then
 120         dst=$src
 121         src=""
 122
 123         if [ -d $dst ]; then
 124                 instcmd=:
 125         else
 126                 instcmd=mkdir
 127         fi
 128 else
 129
 130 # Waiting for this to be detected by the "$instcmd $src $dsttmp" command
 131 # might cause directories to be created, which would be especially bad
 132 # if $src (and thus $dsttmp) contains '*'.
 133
 134         if [ -f $src -o -d $src ]
 135         then
 136                 true
 137         else
 138                 echo "install:  $src does not exist"
 139                 exit 1
 140         fi
 141
 142         if [ x"$dst" = x ]
 143         then
 144                 echo "install:  no destination specified"
 145                 exit 1
 146         else
 147                 true
 148         fi
 149
 150 # If destination is a directory, append the input filename; if your system
 151 # does not like double slashes in filenames, you may need to add some logic
 152
 153         if [ -d $dst ]
 154         then
 155                 dst="$dst"/`basename $src`
 156         else
 157                 true
 158         fi
 159 fi
 160
 161 ## this sed command emulates the dirname command
 162 dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
 163
 164 # Make sure that the destination directory exists.
 165 #  this part is taken from Noah Friedman's mkinstalldirs script
 166
 167 # Skip lots of stat calls in the usual case.
 168 if [ ! -d "$dstdir" ]; then
 169 defaultIFS='
 170 '
 171 IFS="${IFS-${defaultIFS}}"
 172
 173 oIFS="${IFS}"
 174 # Some sh's can't handle IFS=/ for some reason.
 175 IFS='%'
 176 set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'`
 177 IFS="${oIFS}"
 178
 179 pathcomp=''
 180
 181 while [ $# -ne 0 ] ; do
 182         pathcomp="${pathcomp}${1}"
 183         shift
 184
 185         if [ ! -d "${pathcomp}" ] ;
 186         then
 187                 $mkdircmd "${pathcomp}"
 188         else
 189                 true
 190         fi
 191
 192         pathcomp="${pathcomp}/"
 193 done
 194 fi
 195
 196 if [ x"$dir_arg" != x ]
 197 then
 198         $doit $instcmd $dst &&
 199
 200         if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else true ; fi &&
 201         if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else true ; fi &&
 202         if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else true ; fi &&
 203         if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else true ; fi
 204 else
 205
 206 # If we're going to rename the final executable, determine the name now.
 207
 208         if [ x"$transformarg" = x ]
 209         then
 210                 dstfile=`basename $dst`
 211         else
 212                 dstfile=`basename $dst $transformbasename |
 213                         sed $transformarg`$transformbasename
 214         fi
 215
 216 # don't allow the sed command to completely eliminate the filename
 217
 218         if [ x"$dstfile" = x ]
 219         then
 220                 dstfile=`basename $dst`
 221         else
 222                 true
 223         fi
 224
 225 # Make a temp file name in the proper directory.
 226
 227         dsttmp=$dstdir/#inst.$$#
 228
 229 # Move or copy the file name to the temp name
 230
 231         $doit $instcmd $src $dsttmp &&
 232
 233         trap "rm -f ${dsttmp}" 0 &&
 234
 235 # and set any options; do chmod last to preserve setuid bits
 236
 237 # If any of these fail, we abort the whole thing.  If we want to
 238 # ignore errors from any of these, just make sure not to ignore
 239 # errors from the above "$doit $instcmd $src $dsttmp" command.
 240
 241         if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else true;fi &&
 242         if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else true;fi &&
 243         if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else true;fi &&
 244         if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else true;fi &&
 245
 246 # Now rename the file to the real destination.
 247
 248         $doit $rmcmd -f $dstdir/$dstfile &&
 249         $doit $mvcmd $dsttmp $dstdir/$dstfile
 250
 251 fi &&
 252
 253
 254 exit 0