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