prime/tools/decompctx.py

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#!/usr/bin/env python3
import argparse
import os
import re
script_dir = os.path.dirname(os.path.realpath(__file__))
root_dir = os.path.abspath(os.path.join(script_dir, ".."))
src_dir = os.path.join(root_dir, "src")
include_dir = os.path.join(root_dir, "include")
include_pattern = re.compile(r'^#include\s*[<"](.+?)[>"]$')
guard_pattern = re.compile(r'^#ifndef\s+(.*)$')
defines = set()
def import_h_file(in_file, r_path) -> str:
rel_path = os.path.join(root_dir, r_path, in_file)
inc_path = os.path.join(include_dir, in_file)
if os.path.exists(rel_path):
return import_c_file(rel_path)
elif os.path.exists(inc_path):
return import_c_file(inc_path)
else:
print("Failed to locate", in_file)
exit(1)
def import_c_file(in_file) -> str:
in_file = os.path.relpath(in_file, root_dir)
out_text = ''
with open(in_file) as file:
for idx, line in enumerate(file):
guard_match = guard_pattern.match(line.strip())
if idx == 0:
if guard_match:
if guard_match[1] in defines:
break
defines.add(guard_match[1])
print("Processing file", in_file)
include_match = include_pattern.match(line.strip())
if include_match:
out_text += f"/* \"{in_file}\" line {idx} \"{include_match[1]}\" */\n"
out_text += import_h_file(include_match[1], os.path.dirname(in_file))
out_text += f"/* end \"{include_match[1]}\" */\n"
else:
out_text += line
return out_text
def main():
parser = argparse.ArgumentParser(
description="""Create a context file which can be used for decomp.me"""
)
parser.add_argument(
"c_file",
help="""File from which to create context""",
)
args = parser.parse_args()
output = import_c_file(args.c_file)
with open(os.path.join(root_dir, "ctx.c"), "w", encoding="UTF-8") as f:
f.write(output)
if __name__ == "__main__":
main()