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#!/bin/sh
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#
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# install - install a program, script, or datafile
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# This comes from X11R5 (mit/util/scripts/install.sh).
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#
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# Copyright 1991 by the Massachusetts Institute of Technology
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#
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# Permission to use, copy, modify, distribute, and sell this software and its
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# documentation for any purpose is hereby granted without fee, provided that
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# the above copyright notice appear in all copies and that both that
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# copyright notice and this permission notice appear in supporting
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# documentation, and that the name of M.I.T. not be used in advertising or
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# publicity pertaining to distribution of the software without specific,
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# written prior permission.  M.I.T. makes no representations about the
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# suitability of this software for any purpose.  It is provided "as is"
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# without express or implied warranty.
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#
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# Calling this script install-sh is preferred over install.sh, to prevent
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# `make' implicit rules from creating a file called install from it
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# when there is no Makefile.
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#
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# This script is compatible with the BSD install script, but was written
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# from scratch.  It can only install one file at a time, a restriction
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# shared with many OS's install programs.
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# set DOITPROG to echo to test this script
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# Don't use :- since 4.3BSD and earlier shells don't like it.
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doit="${DOITPROG-}"
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# put in absolute paths if you don't have them in your path; or use env. vars.
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mvprog="${MVPROG-mv}"
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cpprog="${CPPROG-cp}"
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chmodprog="${CHMODPROG-chmod}"
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chownprog="${CHOWNPROG-chown}"
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chgrpprog="${CHGRPPROG-chgrp}"
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stripprog="${STRIPPROG-strip}"
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rmprog="${RMPROG-rm}"
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mkdirprog="${MKDIRPROG-mkdir}"
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transformbasename=""
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transform_arg=""
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instcmd="$mvprog"
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chmodcmd="$chmodprog 0755"
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chowncmd=""
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chgrpcmd=""
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stripcmd=""
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rmcmd="$rmprog -f"
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mvcmd="$mvprog"
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src=""
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dst=""
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dir_arg=""
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while [ x"$1" != x ]; do
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    case $1 in
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  -c) instcmd="$cpprog"
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      shift
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      continue;;
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  -d) dir_arg=true
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      shift
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      continue;;
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  -m) chmodcmd="$chmodprog $2"
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      shift
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      shift
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      continue;;
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  -o) chowncmd="$chownprog $2"
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      shift
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      shift
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      continue;;
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  -g) chgrpcmd="$chgrpprog $2"
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      shift
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      shift
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      continue;;
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  -s) stripcmd="$stripprog"
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      shift
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      continue;;
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  -t=*) transformarg=`echo $1 | sed 's/-t=//'`
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      shift
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      continue;;
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  -b=*) transformbasename=`echo $1 | sed 's/-b=//'`
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      shift
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      continue;;
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  *)  if [ x"$src" = x ]
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      then
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      src=$1
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      else
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      # this colon is to work around a 386BSD /bin/sh bug
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      :
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      dst=$1
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      fi
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      shift
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      continue;;
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    esac
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done
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if [ x"$src" = x ]
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then
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  echo "install:  no input file specified"
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  exit 1
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else
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  :
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fi
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if [ x"$dir_arg" != x ]; then
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  dst=$src
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  src=""
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  if [ -d $dst ]; then
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      instcmd=:
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      chmodcmd=""
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  else
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      instcmd=$mkdirprog
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  fi
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else
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# Waiting for this to be detected by the "$instcmd $src $dsttmp" command
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# might cause directories to be created, which would be especially bad 
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# if $src (and thus $dsttmp) contains '*'.
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  if [ -f "$src" ] || [ -d "$src" ]
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  then
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      :
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  else
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      echo "install:  $src does not exist"
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      exit 1
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  fi
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  if [ x"$dst" = x ]
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  then
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      echo "install:  no destination specified"
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      exit 1
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  else
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      :
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  fi
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# If destination is a directory, append the input filename; if your system
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# does not like double slashes in filenames, you may need to add some logic
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  if [ -d $dst ]
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  then
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      dst="$dst"/`basename $src`
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  else
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      :
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  fi
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fi
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## this sed command emulates the dirname command
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dstdir=`echo $dst | sed -e 's,[^/]*$,,;s,/$,,;s,^$,.,'`
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# Make sure that the destination directory exists.
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#  this part is taken from Noah Friedman's mkinstalldirs script
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# Skip lots of stat calls in the usual case.
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if [ ! -d "$dstdir" ]; then
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defaultIFS='
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  '
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IFS="${IFS-${defaultIFS}}"
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oIFS="${IFS}"
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# Some sh's can't handle IFS=/ for some reason.
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IFS='%'
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set - `echo ${dstdir} | sed -e 's@/@%@g' -e 's@^%@/@'`
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IFS="${oIFS}"
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pathcomp=''
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while [ $# -ne 0 ] ; do
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  pathcomp="${pathcomp}${1}"
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  shift
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  if [ ! -d "${pathcomp}" ] ;
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        then
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      $mkdirprog "${pathcomp}"
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  else
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      :
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  fi
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  pathcomp="${pathcomp}/"
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done
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fi
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if [ x"$dir_arg" != x ]
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then
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  $doit $instcmd $dst &&
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  if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else : ; fi &&
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  if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else : ; fi &&
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  if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else : ; fi &&
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  if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else : ; fi
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else
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# If we're going to rename the final executable, determine the name now.
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  if [ x"$transformarg" = x ] 
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  then
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      dstfile=`basename $dst`
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  else
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      dstfile=`basename $dst $transformbasename | 
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          sed $transformarg`$transformbasename
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  fi
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# don't allow the sed command to completely eliminate the filename
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  if [ x"$dstfile" = x ] 
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  then
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      dstfile=`basename $dst`
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  else
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      :
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  fi
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# Make a temp file name in the proper directory.
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  dsttmp=$dstdir/#inst.$$#
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# Move or copy the file name to the temp name
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  $doit $instcmd $src $dsttmp &&
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  trap "rm -f ${dsttmp}" 0 &&
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# and set any options; do chmod last to preserve setuid bits
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# If any of these fail, we abort the whole thing.  If we want to
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# ignore errors from any of these, just make sure not to ignore
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# errors from the above "$doit $instcmd $src $dsttmp" command.
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  if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else :;fi &&
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  if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else :;fi &&
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  if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else :;fi &&
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  if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else :;fi &&
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# Now rename the file to the real destination.
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  $doit $rmcmd -f $dstdir/$dstfile &&
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  $doit $mvcmd $dsttmp $dstdir/$dstfile 
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fi &&
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exit 0