examples/VFS/install-sh

   1 #! /bin/sh
   2 #
   3 # install - install a program, script, or datafile
   4 # This comes from X11R5.
   5 #
   6 # Calling this script install-sh is preferred over install.sh, to prevent
   7 # `make' implicit rules from creating a file called install from it
   8 # when there is no Makefile.
   9 #
  10 # This script is compatible with the BSD install script, but was written
  11 # from scratch.
  12 #
  13
  14
  15 # set DOITPROG to echo to test this script
  16
  17 # Don't use :- since 4.3BSD and earlier shells don't like it.
  18 doit="${DOITPROG-}"
  19
  20
  21 # put in absolute paths if you don't have them in your path; or use env. vars.
  22
  23 mvprog="${MVPROG-mv}"
  24 cpprog="${CPPROG-cp}"
  25 chmodprog="${CHMODPROG-chmod}"
  26 chownprog="${CHOWNPROG-chown}"
  27 chgrpprog="${CHGRPPROG-chgrp}"
  28 stripprog="${STRIPPROG-strip}"
  29 rmprog="${RMPROG-rm}"
  30 mkdirprog="${MKDIRPROG-mkdir}"
  31
  32 transformbasename=""
  33 transform_arg=""
  34 instcmd="$mvprog"
  35 chmodcmd="$chmodprog 0755"
  36 chowncmd=""
  37 chgrpcmd=""
  38 stripcmd=""
  39 rmcmd="$rmprog -f"
  40 mvcmd="$mvprog"
  41 src=""
  42 dst=""
  43 dir_arg=""
  44
  45 while [ x"$1" != x ]; do
  46     case $1 in
  47         -c) instcmd="$cpprog"
  48             shift
  49             continue;;
  50
  51         -d) dir_arg=true
  52             shift
  53             continue;;
  54
  55         -m) chmodcmd="$chmodprog $2"
  56             shift
  57             shift
  58             continue;;
  59
  60         -o) chowncmd="$chownprog $2"
  61             shift
  62             shift
  63             continue;;
  64
  65         -g) chgrpcmd="$chgrpprog $2"
  66             shift
  67             shift
  68             continue;;
  69
  70         -s) stripcmd="$stripprog"
  71             shift
  72             continue;;
  73
  74         -t=*) transformarg=`echo $1 | sed 's/-t=//'`
  75             shift
  76             continue;;
  77
  78         -b=*) transformbasename=`echo $1 | sed 's/-b=//'`
  79             shift
  80             continue;;
  81
  82         *)  if [ x"$src" = x ]
  83             then
  84                 src=$1
  85             else
  86                 # this colon is to work around a 386BSD /bin/sh bug
  87                 :
  88                 dst=$1
  89             fi
  90             shift
  91             continue;;
  92     esac
  93 done
  94
  95 if [ x"$src" = x ]
  96 then
  97         echo "install:  no input file specified"
  98         exit 1
  99 else
 100         true
 101 fi
 102
 103 if [ x"$dir_arg" != x ]; then
 104         dst=$src
 105         src=""
 106
 107         if [ -d $dst ]; then
 108                 instcmd=:
 109         else
 110                 instcmd=mkdir
 111         fi
 112 else
 113
 114 # Waiting for this to be detected by the "$instcmd $src $dsttmp" command
 115 # might cause directories to be created, which would be especially bad
 116 # if $src (and thus $dsttmp) contains '*'.
 117
 118         if [ -f $src -o -d $src ]
 119         then
 120                 true
 121         else
 122                 echo "install:  $src does not exist"
 123                 exit 1
 124         fi
 125
 126         if [ x"$dst" = x ]
 127         then
 128                 echo "install:  no destination specified"
 129                 exit 1
 130         else
 131                 true
 132         fi
 133
 134 # If destination is a directory, append the input filename; if your system
 135 # does not like double slashes in filenames, you may need to add some logic
 136
 137         if [ -d $dst ]
 138         then
 139                 dst="$dst"/`basename $src`
 140         else
 141                 true
 142         fi
 143 fi
 144
 145 ## this sed command emulates the dirname command
 146 dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
 147
 148 # Make sure that the destination directory exists.
 149 #  this part is taken from Noah Friedman's mkinstalldirs script
 150
 151 # Skip lots of stat calls in the usual case.
 152 if [ ! -d "$dstdir" ]; then
 153 defaultIFS='
 154 '
 155 IFS="${IFS-${defaultIFS}}"
 156
 157 oIFS="${IFS}"
 158 # Some sh's can't handle IFS=/ for some reason.
 159 IFS='%'
 160 set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'`
 161 IFS="${oIFS}"
 162
 163 pathcomp=''
 164
 165 while [ $# -ne 0 ] ; do
 166         pathcomp="${pathcomp}${1}"
 167         shift
 168
 169         if [ ! -d "${pathcomp}" ] ;
 170         then
 171                 $mkdirprog "${pathcomp}"
 172         else
 173                 true
 174         fi
 175
 176         pathcomp="${pathcomp}/"
 177 done
 178 fi
 179
 180 if [ x"$dir_arg" != x ]
 181 then
 182         $doit $instcmd $dst &&
 183
 184         if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else true ; fi &&
 185         if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else true ; fi &&
 186         if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else true ; fi &&
 187         if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else true ; fi
 188 else
 189
 190 # If we're going to rename the final executable, determine the name now.
 191
 192         if [ x"$transformarg" = x ]
 193         then
 194                 dstfile=`basename $dst`
 195         else
 196                 dstfile=`basename $dst $transformbasename |
 197                         sed $transformarg`$transformbasename
 198         fi
 199
 200 # don't allow the sed command to completely eliminate the filename
 201
 202         if [ x"$dstfile" = x ]
 203         then
 204                 dstfile=`basename $dst`
 205         else
 206                 true
 207         fi
 208
 209 # Make a temp file name in the proper directory.
 210
 211         dsttmp=$dstdir/#inst.$$#
 212
 213 # Move or copy the file name to the temp name
 214
 215         $doit $instcmd $src $dsttmp &&
 216
 217         trap "rm -f ${dsttmp}" 0 &&
 218
 219 # and set any options; do chmod last to preserve setuid bits
 220
 221 # If any of these fail, we abort the whole thing.  If we want to
 222 # ignore errors from any of these, just make sure not to ignore
 223 # errors from the above "$doit $instcmd $src $dsttmp" command.
 224
 225         if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else true;fi &&
 226         if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else true;fi &&
 227         if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else true;fi &&
 228         if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else true;fi &&
 229
 230 # Now rename the file to the real destination.
 231
 232         $doit $rmcmd -f $dstdir/$dstfile &&
 233         $doit $mvcmd $dsttmp $dstdir/$dstfile
 234
 235 fi &&
 236
 237
 238 exit 0