dexize

#!/usr/bin/env bash

# ref. https://gist.github.com/JakeWharton/6002797
usage() {
    cat << EOF
USAGE

    dexize ./build/outputs/apk/app-debug.apk
    dexize ./build/intermediates/exploded-aar/com.android.support/support-v4/23.1.0/jars/classes.jar

SYNTAX

    dexize {jar..}
    dexize {apk..}
    dexize {folder..}

EXAMPLE

    find build/intermediates/exploded-aar -name '*.jar' | while read line ; do dexize "\${line%/*.jar}" ;done | tee /tmp/dex-count.txt
    sort -n /tmp/dex-count.txt > /tmp/dex-count-sorted.txt

EOF
}

if [ ! "$1" ]; then
    usage
    exit 1
fi

#tmp=$(mktemp -d)
tmp=/tmp/dexize

tmp_dex="${tmp}/dexize.dex"

jar2dex() {
    "${ANDROID_HOME}/build-tools/20.0.0/dx" --dex --output="$2" "$1" > /dev/null 2>&1
}

dexize4jar() {
    jar2dex "$1" "$tmp_dex"
    dexize4dex "$tmp_dex"
    rm "$tmp_dex" > /dev/null 2>&1
}

dexizedump4dex() {
    dexdump="${ANDROID_HOME}/build-tools/20.0.0/dexdump"
    "$dexdump" -f "$1" | grep \(in | awk '{print $4}'|awk -F/ '{print $1"."$2"."$3;}' | sort | uniq -c | sort
}

dexize4dex() {
    count=`cat "$1" | head -c 92 | tail -c 4 | hexdump -e '1/4 "%d"'`
    echo "$count"
}

dexize4dex-baksmali() {
    rm -fr "${tmp}/baksmali.d"
    mkdir "${tmp}/baksmali.d"
    baksmali "$1" -o "${tmp}/baksmali.d" > /dev/null 2>&1
    echo $(find "${tmp}/baksmali.d" -type f -exec grep "\.method" '{}' \; | wc -l | tr -d ' ')

    rm -fr "${tmp}/baksmali.d"
}

dexizedump4apk-baksmali() {
    tmp_baksmali="${tmp}/baksmali.d"
    baksmali "$1" -o "$tmp_baksmali" > /dev/null 2>&1
    for pkg in `find "$tmp_baksmali"/* -type d`; do
        smali "$pkg" -o "${tmp}/classes.dex" > /dev/null 2>&1
        count=$(dexize4dex "${tmp}/classes.dex")
        name=$(echo ${pkg:(${#tmp_baksmali} + 1)} | tr '/' '.')
        echo -e "$count\t$name"
    done

    rm -fr "$tmp_baksmali"
}

dexizedump4apk() {
    unzip -q "$1" classes.dex -d "$tmp"
    dexizedump4dex "${tmp}/classes.dex"
}

dexize4apk() {
    unzip -q "$1" classes.dex -d "$tmp"
    #dexize4dex "${tmp}/classes.dex"
    dexize4dex-baksmali "${tmp}/classes.dex"
}

while [ "$1" ]; do
    if [ -d "$1" ]; then
        for jar in "${1}"/*; do
            count=`dexize4jar "$jar"`
            echo -e "${count}\t${jar}"
        done
    elif [ -f "$1" ]; then
        case "$1" in
            *.jar)
                count=`dexize4jar "$1"`
                echo -e "${count}\t${1}"
                ;;
            *.apk)
                dexize4apk "$1"
                #dexizedump4apk-baksmali "$1"
                ;;
        esac
    fi

    shift
done

rm -fr "$tmp"