#!/bin/sh
#
# install - install a program, script, or datafile
# This comes from X11R5 (mit/util/scripts/install.sh).
#
# $Id$
#
# Copyright 1991 by the Massachusetts Institute of Technology
#
# Permission to use, copy, modify, distribute, and sell this software and its
# documentation for any purpose is hereby granted without fee, provided that
# the above copyright notice appear in all copies and that both that
# copyright notice and this permission notice appear in supporting
# documentation, and that the name of M.I.T. not be used in advertising or
# publicity pertaining to distribution of the software without specific,
# written prior permission.  M.I.T. makes no representations about the
# suitability of this software for any purpose.  It is provided "as is"
# without express or implied warranty.
#
# Calling this script install-sh is preferred over install.sh, to prevent
# `make' implicit rules from creating a file called install from it
# when there is no Makefile.
#
# This script is compatible with the BSD install script, but was written
# from scratch.  It can only install one file at a time, a restriction
# shared with many OS's install programs.


# set DOITPROG to echo to test this script

# Don't use :- since 4.3BSD and earlier shells don't like it.
doit="${DOITPROG-}"


# put in absolute paths if you don't have them in your path; or use env. vars.

mvprog="${MVPROG-mv}"
cpprog="${CPPROG-cp}"
chmodprog="${CHMODPROG-chmod}"
chownprog="${CHOWNPROG-chown}"
chgrpprog="${CHGRPPROG-chgrp}"
stripprog="${STRIPPROG-strip}"
rmprog="${RMPROG-rm}"
mkdirprog="${MKDIRPROG-mkdir}"

transformbasename=""
transform_arg=""
instcmd="$cpprog"
chmodcmd="$chmodprog 0755"
chowncmd=""
chgrpcmd=""
stripcmd=""
rmcmd="$rmprog -f"
mvcmd="$mvprog"
src=""
dst=""
dir_arg=""


## sed command to emulate basename command
BaseName='s,//*,/,g;s,/$,,;s,^.*/,,'
## sed command to emulate dirname command
DirName='s,//*,/,g;s,[^/]*$,,;s,/$,,;s,^$,.,'

ProcName=`echo $0 | sed -e $BaseName`

while [ x"$1" != x ]; do
  case $1 in
    -c)
      instcmd="$cpprog"
      shift
      continue;;

    -d)
      dir_arg=true
      shift
      continue;;

    -m)
      chmodcmd="$chmodprog $2"
      shift
      shift
      continue;;

    -o)
      chowncmd="$chownprog $2"
      shift
      shift
      continue;;

    -g)
      chgrpcmd="$chgrpprog $2"
      shift
      shift
      continue;;

    -s)
      stripcmd="$stripprog"
      shift
      continue;;

    -t=*)
      transformarg=`echo $1 | sed 's/^-t=//'`
      shift
      continue;;

    -b=*)
      transformbasename=`echo $1 | sed 's/-b=//'`
      shift
      continue;;

    *)
      if [ x"$2" != x ]; then
        # append to source file list
        src="$src $1"
      else
        # this colon is to work around a 386BSD /bin/sh bug
        :
        dst=$1
      fi
      shift
      continue;;
  esac
done

if [ x"$dir_arg" != x ]; then
  #dst="$src $dst"
  src=""
	
  if [ -d $dst ]; then
    instcmd=:
    chmodcmd=""
  else
    instcmd=mkdir
  fi

  dstdir=`echo $dst | sed -e $DirName`
else
  # Waiting for this to be detected by the "$instcmd $src $dsttmp" command
  # might cause directories to be created, which would be especially bad 
  # if $src (and thus $dsttmp) contains '*'.

  if [ x"$src" = x ]; then
    echo "$ProcName: no input files specified"
    exit 1
  else
    true
  fi

  for file in $src; do
    if [ -f $file ]; then
      true
    else
      echo "$ProcName: $file does not exist or is a directory"
      exit 1
    fi
  done
	
  if [ x"$dst" = x ]; then
    echo "$ProcName: no destination specified"
    exit 1
  else
    true
  fi

  # If destination is a directory, append the input filename; if your system
  # does not like double slashes in filenames, you may need to add some logic

  if [ ! -d $dst ]; then
    echo "$ProcName: destination is not a directory"
    exit 1
  else
    true
  fi

  # clean up multiple and trailing slashes
  dstdir=`echo $dst | sed -e 's,//*,/,g;s,/$,,'`
fi

# Make sure that the destination directory exists.
#  this part is taken from Noah Friedman's mkinstalldirs script

# Skip lots of stat calls in the usual case.
if [ ! -d "$dstdir" ]; then
  defaultIFS='	
'
  oIFS="${IFS-$defaultIFS}"
  # Some sh's can't handle IFS=/ for some reason.
  IFS='%'
  set - `echo $dstdir | sed -e 's@/@%@g;s@^%@/@'`
  IFS="$oIFS"

  pathcomp=''

  while [ $# -ne 0 ]; do
    pathcomp="$pathcomp$1"
    shift

    if [ ! -d "$pathcomp" ]; then
      $doit $mkdirprog "$pathcomp"
    else
      true
    fi

    pathcomp="$pathcomp/"
  done
fi

if [ x"$dir_arg" != x ]; then
  $doit $instcmd $dst &&

  if [ x"$chowncmd" != x ]; then $doit $chowncmd $dst; else true ; fi &&
  if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dst; else true ; fi &&
  if [ x"$stripcmd" != x ]; then $doit $stripcmd $dst; else true ; fi &&
  if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dst; else true ; fi
else
  for file in $src; do
    # If we're going to rename the final executable, determine the name now.
    if [ x"$transformarg" = x ]; then
      dstfile=`echo $file | sed -e $BaseName`
    else
      dstfile=`echo $file | sed -e $BaseName -e $transformarg`
    fi

    # don't allow the sed command to completely eliminate the filename
    if [ x"$dstfile" = x ]; then
      echo "$ProcName: transformed filename resulted in null string"
    else
      true
    fi

    # Make a temp file name in the proper directory.
    dsttmp=$dstdir/#inst.$$#

    # Move or copy the file name to the temp name
    $doit $instcmd $file $dsttmp &&
    trap "rm -f $dsttmp" 0 &&

    # and set any options; do chmod last to preserve setuid bits

    # If any of these fail, we abort the whole thing.  If we want to
    # ignore errors from any of these, just make sure not to ignore
    # errors from the above "$doit $instcmd $file $dsttmp" command.

    if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; else true;fi &&
    if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; else true;fi &&
    if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; else true;fi &&
    if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; else true;fi &&

    # Now rename the file to the real destination.
    $doit $rmcmd $dstdir/$dstfile &&
    $doit $mvcmd $dsttmp $dstdir/$dstfile 
  done
fi &&

exit 0