#!/bin/bash
  
  # Copyright    2017  Nagendra Kumar Goel
  #              2014  Johns Hopkins University (author: Nagendra K Goel)
  # Apache 2.0
  
  # This script makes a copy of targets directory (by copying targets.scp),
  # possibly adding a specified prefix or a suffix to the utterance names.
  
  # begin configuration section
  utt_prefix=
  utt_suffix=
  # end configuration section
  
  if [ -f ./path.sh ]; then . ./path.sh; fi
  . ./utils/parse_options.sh
  
  if [ $# != 2 ]; then
    echo "Usage: "
    echo "  $0 [options] <srcdir> <destdir>"
    echo "e.g.:"
    echo " $0  --utt-prefix=1- exp/segmentation_1a/train_whole_combined_targets_sub3 exp/segmentation_1a/train_whole_combined_targets_sub3_rev1"
    echo "Options"
    echo "   --utt-prefix=<prefix>     # Prefix for utterance ids, default empty"
    echo "   --utt-suffix=<suffix>     # Suffix for utterance ids, default empty"
    exit 1;
  fi
  
  export LC_ALL=C
  
  srcdir=$1
  destdir=$2
  
  mkdir -p $destdir
  
  if [ -f $srcdir/frame_subsampling_factor ]; then
    cp $srcdir/frame_subsampling_factor $destdir
  fi
  
  cat $srcdir/targets.scp | awk -v p=$utt_prefix -v s=$utt_suffix \
    '{printf("%s %s%s%s
  ", $1, p, $1, s);}' > $destdir/utt_map
  
  cat $srcdir/targets.scp | utils/apply_map.pl -f 1 $destdir/utt_map | \
    sort -k1,1 > $destdir/targets.scp
  
  echo "$0: copied targets from $srcdir to $destdir"