#!/bin/bash


function helpexit() {
    echo Archive the subfolders of the current directory
    echo "  -z  Compress. If not passed, will ask after tar archive"
    echo "  -n  No compression. Exit after tar archive"
    exit
}
function listfolders() {
   find "$1" -mindepth 1 -maxdepth 1 -type d | sort | tr '\n' '\000'
}
function fsize() {
    echo -en "\e[2K\r"
    [[ -z "$2" ]] || echo -n "$2 -> "
    ls -sh "$1" | xargs echo -n
}

[[ "$1" = "-h" ]] && helpexit

echo 'Existing files will be overwritten!'
echo Archive the following folders:

listfolders . | tr "[:cntrl:]" " "
echo ''
echo '<ctrl-c> to quit'
read foo

listfolders . | while read -r -d "" d; do
  echo -n $d
  tar cvf "$d.tar" "$d" > "$d.tar.lst" &
  PID=$!
  DU=$( nice fastdu -h "$d" & )
  DUPID=$!
  while kill -0 "$PID" &>/dev/null; do
    [[ -f "$d.tar" ]] && fsize "$d.tar" "$DU"
    for i in {1..5}; do
        sleep $i; kill -0 "$PID" &>/dev/null || break 2
    done
  done
  fsize "$d.tar" "$DU"
  kill -0 "$DUPID" &>/dev/null || kill "$DUPID" &>/dev/null
  echo ''
done
[[ "$1" = "-n" ]] && {
    exit
}
[[ "$1" = "-z" ]] || {
    echo 'Proceed to compress? <ctrl-c> to quit'
    read foo
}

listfolders . | while read -r -d "" d; do
  DU=$( fastdu -h "$d.tar" )
  gzip -f "$d.tar" &
  PID=$!
  while kill -0 "$PID" >/dev/null 2>&1; do
    [[ -f "$d.tar.gz" ]] && fsize "$d.tar.gz" "$DU"
    for i in {1..5}; do
        sleep $i; kill -0 "$PID" &>/dev/null || break 2
    done
  done
  fsize "$d.tar.gz" "$DU"
  echo '' 
done