pkg-classes

#!/usr/bin/env python3
import os
import glob
import sys
import tempfile

def run(cmd):
    print(cmd)
    os.system(cmd)

APK = sys.argv[1]
OUT_TXT = sys.argv[2]

tmp_dir = tempfile.TemporaryDirectory().name

run(f"./apktool d -f {APK} -o {tmp_dir}")

classes = []
for f in glob.glob(tmp_dir + "/**/*.smali", recursive=True):
    assert f.startswith(tmp_dir)
    f = f[len(tmp_dir):].strip("/")
    smali_dirname = f.split("/")[0]
    assert smali_dirname == "smali" or smali_dirname.startswith("smali_classes")
    f = f[len(smali_dirname) + 1:]
    f = f.replace(".smali", "").replace("/", ".")
    classes.append(f)

with open(OUT_TXT, "w") as outfile:
    outfile.write("\n".join(classes))

os.system(f"rm -rf {tmp_dir}")

from collections import Counter

class_toplevel_counter = Counter()
for c in classes:
    class_toplevel_counter[".".join(c.split(".", 2)[:2])] += 1

for k, v in class_toplevel_counter.most_common():
    print(k, v)