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#!/usr/bin/env python3
"""Pack rcc source files into a zip for contest submission, stripping comments.
Source code for RCC-Legacy.
Copyright (C) 2026 Richard Qin
This file is part of RCC.
RCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
RCC is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with RCC; see the file LICENSE. If not see
<http://www.gnu.org/licenses/>.
Includes:
- src/**/*.cc, src/**/*.h
- include/**/*.h
Strips C/C++ comments (// and /* */) while preserving string/char literals.
Does NOT modify any local files; output goes to ./rcc_submission.zip.
Usage:
python3 pack_submission.py [output.zip]
"""
import re
import sys
import zipfile
from pathlib import Path
ROOT = Path(__file__).resolve().parent
PATTERNS = ("src/**/*.cc", "src/**/*.h", "include/**/*.h")
def strip_comments(src: str) -> str:
out = []
i, n = 0, len(src)
while i < n:
c = src[i]
if c == '"':
out.append(c)
i += 1
while i < n:
ch = src[i]
out.append(ch)
i += 1
if ch == "\\" and i < n:
out.append(src[i])
i += 1
elif ch == '"':
break
continue
if c == "'":
out.append(c)
i += 1
while i < n:
ch = src[i]
out.append(ch)
i += 1
if ch == "\\" and i < n:
out.append(src[i])
i += 1
elif ch == "'":
break
continue
if c == "/" and i + 1 < n and src[i + 1] == "/":
while i < n and src[i] != "\n":
i += 1
continue
if c == "/" and i + 1 < n and src[i + 1] == "*":
i += 2
while i + 1 < n and not (src[i] == "*" and src[i + 1] == "/"):
i += 1
i += 2
continue
out.append(c)
i += 1
return "".join(out)
def collapse_blank_lines(src: str) -> str:
src = re.sub(r"[ \t]+\n", "\n", src)
src = re.sub(r"\n{3,}", "\n\n", src)
return src
_INCLUDE_RCC_RE = re.compile(r'(#\s*include\s*")rcc/([^"]+")')
def rewrite_includes(src: str) -> str:
return _INCLUDE_RCC_RE.sub(r"\1\2", src)
def main() -> int:
out_name = sys.argv[1] if len(sys.argv) > 1 else "rcc_submission.zip"
out_path = (ROOT / out_name).resolve()
if out_path.suffix != ".zip":
print(f"error: refuse to write non-.zip path: {out_path}", file=sys.stderr)
return 2
for guarded in ("src", "include"):
gpath = (ROOT / guarded).resolve()
try:
out_path.relative_to(gpath)
except ValueError:
continue
print(f"error: refuse to write inside source tree: {out_path}", file=sys.stderr)
return 2
files: list[Path] = []
for pat in PATTERNS:
files.extend(ROOT.glob(pat))
files = sorted(set(files))
if not files:
print("error: no source files found", file=sys.stderr)
return 1
if out_path.exists():
if not out_path.is_file():
print(f"error: output is not a file: {out_path}", file=sys.stderr)
return 2
out_path.unlink()
total_in = total_out = 0
with zipfile.ZipFile(out_path, "w", zipfile.ZIP_DEFLATED, compresslevel=9) as zf:
for f in files:
rel = f.relative_to(ROOT).as_posix()
txt = f.read_text(encoding="utf-8", errors="replace")
stripped = rewrite_includes(collapse_blank_lines(strip_comments(txt)))
zf.writestr(rel, stripped)
total_in += len(txt)
total_out += len(stripped)
print(f" {rel:50s} {len(txt):>8d} -> {len(stripped):>8d}")
print(
f"\n{len(files)} files, {total_in} -> {total_out} bytes "
f"({100.0 * total_out / total_in:.1f}%), zip = {out_path.stat().st_size} bytes"
)
print(f"output: {out_path}")
return 0
if __name__ == "__main__":
sys.exit(main())
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