#!/bin/sh

usage ()
{
  echo "$0 SOURCEDIR"
  echo ""
  echo "converts .imp, .Imp and .IMP files from DOS CR/LF to LF only and"
  echo "translates filename to lower case. Converted files are stored"
  echo "in current directory."
  echo "ad 2001/04/16"
  exit 1
}

cnv ()
{
  DESTFN=`echo "$1" | tr [A-Z] [a-z]`
  echo -n "converting $1 to $DESTDIR/$DESTFN "
  
  echo "# converted to unix by $USERNAME on $HST at $NOW" >$DESTDIR/$DESTFN
  echo "#" >>$DESTDIR/$DESTFN
  cat $1 | tr -d '\r' >> $DESTDIR/$DESTFN
  # set time/date from source
  touch -r $1 $DESTDIR/$DESTFN
  echo ""
}

if [ -x /usr/bin/tr ]; then
  if [ -x /bin/tr ]; then
    if [ -x /usr/local/bin/tr ]; then
      echo "this utility needs tr. Please install GNU textutils."
      usage
    fi
  fi
fi
[ "$1" = "" ] && usage
[ ! -d $1 ] && usage
HST=`uname -n`
NOW=`date`
DESTDIR=`pwd`
cd $1
for i in *.imp; do
  [ "$i" != "*.imp" ] && cnv $i
done
for i in *.IMP; do
  [ "$i" != "*.IMP" ] && cnv $i
done
for i in *.Imp; do
  [ "$i" != "*.Imp" ] && cnv $i
done
cd $DESTDIR