pngcrush.sh

   1 #!/bin/bash
   2
   3 png=$1
   4 steps=()
   5
   6 function step() {
   7     "$@"
   8     mv -f {_,}_.png
   9     steps+=($(stat -f "%z" _.png))
  10 }
  11
  12 pngcrush=/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/pngcrush
  13
  14 grep CgBI "${png}" &>/dev/null && exit 0
  15
  16 step cp -fa "${png}" __.png
  17
  18 #step "${pngcrush}" -q -rem alla -reduce -brute -iphone {,_}_.png
  19
  20 #step "${pngcrush}" -q -rem alla -reduce -brute {,_}_.png
  21 #step pincrush {,_}_.png
  22
  23 step "${pngcrush}" -q -rem alla -reduce -iphone {,_}_.png
  24
  25 #"${pngcrush}" -q -rem alla -reduce -brute -iphone "${png}" 1.png
  26 #"${pngcrush}" -q -iphone _.png 2.png
  27 #ls -la 1.png 2.png
  28
  29 mv -f _.png "${png}"
  30
  31 echo -n "${png##*/} "
  32 for ((i = 0; i != ${#steps[@]}; ++i)); do
  33     if [[ $i != 0 ]]; then
  34         echo -n " "
  35     fi
  36
  37     echo -n "${steps[i]}"
  38 done
  39
  40 printf $' %.0f%%\n' "$((steps[${#steps[@]}-1] * 100 / steps[0]))"