Rename iOS asset drops to match Android conventions. Deisgners, AMIRITE!?

camel-to-snake.py

#!/usr/bin/python

import sys, re

def convert(s):
  s1 = re.sub('(.)([A-Z][a-z]+)', r'\1_\2', s)
  return re.sub('([a-z0-9])([A-Z])', r'\1_\2', s1).lower()

if __name__ == '__main__':
  if len(sys.argv) == 1:
    s = sys.stdin.readlines()[0].strip()
  elif len(sys.argv) == 2:
    s = sys.argv[1]
  else:
    raise Exception()

  print convert(s)

designers.sh

#!/bin/sh

declare -a densities=('mdpi' 'hdpi' 'xhdpi' 'xxhdpi' 'xxxhdpi')
declare -a scales=('1x' '1.5x' '2x' '3x' '4x') 

i=0
while [ $i -lt ${#densities[@]} ]; do
  density=${densities[i]}
  scale=${scales[i]}

  for f in *${scale}.png; do
    if [ -f $f ]; then
      folder=drawable-${density}
      if [ ! -d ${folder} ]; then
        mkdir ${folder}
      fi


      destination=${folder}/$(echo $f | sed -e "s/${scale}//g" | camel-to-snake.py)
      mv $f $destination
    fi
  done

  let i=i+1
done