cutthecord/resources/scripts/patchbisect.py

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#!/bin/env python3
import re
import sys
import os
import subprocess
# Example invocation:
# python3 patchbisect.py /home/ave/workbench/ctc/com.discord-968
# This is really bad code that I wrote between 3am and 6am
# Please do not criticize or judge my programming skills by this.
apk_folder = sys.argv[1]
cutthecord_folder = os.path.dirname(os.path.realpath(__file__))
def apply_patch(patch, reverse=False):
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patch_path = os.path.join(cutthecord_folder, "resources/patches", patch,
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f"{to_versioncode}.patch")
with open(patch_path) as f:
patch_contents = f.read()
cmd = f"patch -p1 {'-R' if reverse else ''} --no-backup-if-mismatch --force"
subprocess.run(cmd,
shell=True, input=patch_contents, text=True,
cwd=apk_folder, capture_output=True)
re_versioncode_yml = re.compile(r'versionCode: \'([0-9]+)\'')
re_versionname_yml = re.compile(r'versionName: (.+)$')
# Get version code and name
with open(os.path.join(apk_folder, "apktool.yml")) as f:
file_contents = f.read()
to_versioncode = re_versioncode_yml.findall(file_contents)[0]
to_versionname = re_versionname_yml.findall(file_contents)[0]
unsure = []
# Load list of patches
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for patch in os.listdir(os.path.join(cutthecord_folder, "resources/patches")):
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# Ignore non-dirs
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if not os.path.isdir(os.path.join(cutthecord_folder, "resources/patches", patch)):
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continue
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patch_path = os.path.join(cutthecord_folder, "resources/patches", patch,
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f"{to_versioncode}.patch")
# Check if patch exists for from_version, if it doesn't, warn user
if not os.path.isfile(patch_path) and patch not in ["necessary"]:
# Don't warn on instructional patches
if patch not in ["customfont", "customring",
"bettertm", "bettertmlight",
"blobs"]:
print(f"SKIPPED: No {to_versionname} version found for {patch}.")
continue
# Append patch name to the list
unsure.append(patch)
failcount = 1
applied = []
good = []
bad = []
while unsure:
print("So far...")
print(f"Unsure patches: {', '.join(unsure)}")
print(f"Good patches: {', '.join(good)}")
print(f"Bad patches: {', '.join(bad)}")
count_this_round = int(len(unsure) / failcount)
for i in range(0, count_this_round):
patch_name = unsure[i]
print(f"Applying: {patch_name}")
apply_patch(patch_name)
applied.append(patch_name)
# Very cursed lines of code.
is_working = ""
while is_working not in ["y", "n"]:
is_working = input("Is the current patchset working? (y/n) ")
# <3 3.8
# while (is_working := input("Is the current patchset working? (y/n) ")) not in ["y", "n"]:
# continue
if is_working == "y":
good.extend(applied)
unsure = list(set(unsure) - set(applied))
failcount = 1
elif count_this_round > 1:
failcount += 1
else:
bad.extend(applied)
unsure = list(set(unsure) - set(applied))
failcount = 1
for patch_name in applied:
apply_patch(patch_name, True)
applied.clear()
print("Done, all patches identified as good or bad.")
print(f"Good: {', '.join(good)}")
print(f"Bad: {', '.join(bad)}")