#
# Pretty prints a time in human readable format.
#
# Authors:
#   Alex Reece <awreece@gmail.com>
#

# Converts a floating point time duration in seconds to a human readable string.
function time_to_human {
  seconds=$1
  if (( seconds < 10 )); then
    printf "%6.3fs" $seconds
  elif (( seconds < 60 )); then
    printf "%6.3fs" $seconds
  elif (( seconds < (60*60) )); then
    printf "%6.3fm" $(( seconds / 60 ))
  elif (( seconds < (60*60*24) )); then
    printf "%6.3fh" $(( seconds / (60*60) ))
  elif (( seconds < (60*60*24*30) )); then
    printf "%6.3fd" $(( seconds / (60*60*24) ))
  elif (( seconds < (60*60*24*30*12) )); then
    printf "%6.3fm" $(( seconds / (60*60*24*30) ))
  else
    printf "%6.3fy" $(( seconds / (60*60*24*30*12) ))
  fi
}