pngbai_git

#!/bin/bash

# Depends on pngbai script: https://gist.github.com/acrookston/6877287
# And don't forget to install pngbai's dependencies (documeted there)

FILES=`git diff --name-only origin/master | grep '\.png$'`
for file in $FILES; do
    echo "$file"
    git add $file
    pngbai $file "${file}2"
done

find . -iname *.png2 -exec bash -c 'mv {} `dirname {}`/`basename {} .png2`.png' \;
find . -iname *.png2.png -exec bash -c 'rm {}' \;