利用shell脚本抽取ipa中的图片资源

目的很简单,就是从ipa包中抽取图片资源,然后按照ipa中的目录结构存放.

#!/bin/sh
#usage:extra-image-from-ipa <ipa-file>|<Payload-dir> <target-dir>

echo $#
if [[ $# != 2 ]]; then
echo "extra-image-from-ipa <ipa-file>|<Payload-dir> <target-dir>"
exit 1
fi

IPA_FILE=$1
TARGET_DIR=$2

if [[ -f "$IPA_FILE" ]]; then
echo "解压ipa包到临时目录"
IPA_DIR="/tmp/extra-image-from-ipa/temp/`date "+%Y%m%d-%H%M%S"`"
echo "temp-dir: " $IPA_DIR
#rm -rf $IPA_DIR
mkdir -p $IPA_DIR

echo "unzip $IPA_FILE begin ..."
unzip -q "$IPA_FILE" -d "$IPA_DIR"
if [[ $? != 0 ]]; then
echo "unzip $IPA_FILE failed"
exit 2
else
echo "unzip $IPA_FILE successed"
fi

# 定位到*.app目录
IPA_DIR="$IPA_DIR/""Payload/""`ls "$IPA_DIR/"Payload`"
else
IPA_DIR=$IPA_FILE
fi

copy_image()
{
#echo "begin copy image"
R="$1"
D="$2"
S="$3"

#echo "建立和ipa包相同层次的目录机构"
T=${S/$R/$D}

mkdir -p `dirname $T`
cp -rf $S $T

if [[ $T =~ \.png$ ]]; then
#echo "利用PNGCrush还原被优化的png图片"
mv $T $T.orign
xcrun -sdk iphoneos pngcrush -revert-iphone-optimizations -q $T.orign $T
if [[ $? != 0 ]]; then
echo "revert failed: " $T.orgin
else
rm $T.orign
fi
fi

#echo "end copy image"
}

# 导出函数 供下面的find方法使用
export -f copy_image

echo "copy jpg image"
find "$IPA_DIR" -name "*.jpg" -exec sh -c "copy_image $IPA_DIR $TARGET_DIR {}" \;

echo "process png image"
find "$IPA_DIR" -name "*.png" -exec sh -c "copy_image $IPA_DIR $TARGET_DIR {}" \;

echo "finished"

本文出自 “技术-另类的爱情” 博客，请务必保留此出处http://randywang.blog.51cto.com/4247710/1392604