iOS ipa包瘦身---删除无用图片资源

#!/bin/sh

programFilePath=$(cd "$(dirname "$0")"; pwd)
unusedCount=0
maybeUnusedCount=0

if [[ -z $programFilePath ]]; then
read -p "请输入工程的路径" programFilePath
fi

check_files=`find $programFilePath -name ‘*.xib‘ -o -name ‘*.storyboard‘ -o -name ‘*.[mh]‘  -o -name ‘*.pch‘ -o -name ‘*.java‘ -o -name ‘*.xml‘ -o -name ‘*.js‘ -o -name ‘*.html‘`

for file  in `echo $check_files | sed ‘s/\n/ /g‘`
    do
#iOS图片引用规则 ：获取@符号的语句
        grep -i "@\"" -A 0  "$file" | grep -v  -e  "--" >> maybeImageSentence.txt
    done


imageTextPath="$programFilePath/maybeImageSentence.txt"

maybeUnusedImageFilePath="$programFilePath/maybeUnusedImage.txt"
if [ -f "$maybeUnusedImageFilePath" ]; then
    rm -f "$maybeUnusedImageFilePath"
fi

unusedImageFilePath="$programFilePath/unusedImage.txt"
if [ -f "$unusedImageFilePath" ]; then
    rm -f "$unusedImageFilePath"
fi

for png in `find $programFilePath -name ‘*.png‘`
do
    # 图片名称
    match_name=`basename $png`

    suffix1="@2x.png"
    suffix2=".9.png"
    suffix3=".png"
    suffix4="@3x.png"

    if [[ ${match_name/${suffix1}//} != $match_name ]]; then
      match_name=${match_name%$suffix1}
    elif [[ ${match_name/${suffix4}//} != $match_name ]]; then
           match_name=${match_name%$suffix4}
       elif [[ ${match_name/${suffix2}//} != $match_name ]]; then
           match_name=${match_name%$suffix2}
    else
        match_name=${match_name%$suffix3}
    fi

    dir_name=`dirname $png`

    if [[ $dir_name =~ .bundle$ ]] || [[ $dir_name =~ .appiconset$ ]] || [[ $dir_name =~ .launchimage$ ]]; then
      continue
    fi

    # 在imageset里面找
    result=$(echo $dir_name | grep "imageset")
    if [[ "$result" == "" ]];  then
        continue
    fi

    referenced=false

    if grep -q "$match_name" "$imageTextPath"; then
        referenced=true
    fi

    contaT=$(echo $match_name | grep "[0-9]")
    if [[ "$contaT" != "" ]];  then
        maybeUnusedCount=`expr $maybeUnusedCount + 1`
        echo "$png"  >> maybeUnusedImage.txt
        continue
    fi


      if ! $referenced ; then
          unusedCount=`expr $unusedCount + 1`
        echo "$png"  >> unusedImage.txt
        # 打开下面的语句直接删除图片目录 例如icon_arrow_bluesmall.imageset
#          rm -rf $dir_name
      fi

done

rm maybeImageSentence.txt

echo "Total $unusedCount unusedImage files ->imagePath store unusedImage.txt"
echo "Total $maybeUnusedCount maybeUnusedImage files ->imagePath store maybeUnusedImage.txt"