feat: add Linux MinGW build path and Windows build-script fixes (v2.2.0)
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#!/usr/bin/env python3
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"""Linux build path for nsis7z plugin.
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Builds Windows DLL artifacts from Linux using MinGW-w64 cross compilers.
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Current support: 7-Zip 26.00.
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"""
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from __future__ import annotations
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import argparse
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import os
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import shutil
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import subprocess
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import sys
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from pathlib import Path
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ROOT = Path(__file__).resolve().parents[2]
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SUPPORTED = {"26.00"}
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CONFIGS = {
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"x86-ansi": {
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"triplet": "i686-w64-mingw32",
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"is_x64": "0",
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"unicode": False,
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"dest": "plugins/x86-ansi/nsis7z.dll",
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},
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"x86-unicode": {
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"triplet": "i686-w64-mingw32",
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"is_x64": "0",
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"unicode": True,
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"dest": "plugins/x86-unicode/nsis7z.dll",
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},
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"x64-unicode": {
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"triplet": "x86_64-w64-mingw32",
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"is_x64": "1",
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"unicode": True,
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"dest": "plugins/amd64-unicode/nsis7z.dll",
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},
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}
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def _require_tool(name: str) -> None:
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if shutil.which(name) is None:
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print(f"ERROR: required tool not found: {name}", file=sys.stderr)
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sys.exit(2)
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def _resolve_jobs(value: str) -> int:
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if value == "auto":
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return max(1, os.cpu_count() or 1)
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jobs = int(value)
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if jobs < 1:
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raise ValueError("jobs must be >= 1")
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return jobs
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def _build_one(
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zip_version: str,
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cfg_name: str,
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verbose: bool,
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jobs: int,
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clean: bool,
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cleanup_artifacts: bool,
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) -> int:
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cfg = CONFIGS[cfg_name]
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triplet = cfg["triplet"]
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bundle_dir = ROOT / "versions" / zip_version / "CPP" / "7zip" / "Bundles" / "Nsis7z"
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cpp_root = ROOT / "versions" / zip_version / "CPP"
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makefile = bundle_dir / "makefile.gcc"
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if not makefile.exists():
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print(f"ERROR: Linux makefile not found: {makefile}", file=sys.stderr)
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return 1
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out_obj = f"_o_{cfg_name.replace('-', '_')}"
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local_flags = "-DNDEBUG"
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if cfg["unicode"]:
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local_flags += " -DUNICODE -D_UNICODE"
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else:
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# Precomp.h forces UNICODE=1 unconditionally; suppress it for the ansi
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# build so that LPTSTR resolves to char* consistently in all TUs.
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local_flags += " -DZ7_NO_UNICODE"
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base_cmd = [
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"make",
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"-f",
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"makefile.gcc",
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f"O={out_obj}",
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"SystemDrive=1",
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"IS_MINGW=1",
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"MSYSTEM=LINUX",
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f"IS_X64={cfg['is_x64']}",
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f"CC={triplet}-gcc",
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f"CXX={triplet}-g++",
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f"RC={triplet}-windres",
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f"LOCAL_FLAGS_EXTRA={local_flags} -Wno-unknown-pragmas",
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f"CXX_INCLUDE_FLAGS=-I{cpp_root}",
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]
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build_mode = "clean build" if clean else "incremental build"
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print(f"[linux] Building {cfg_name} ({zip_version}, {build_mode}, -j{jobs})")
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# Don't run 'clean' and 'all' in the same parallel make invocation:
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# with -j, GNU make may execute them concurrently and remove objects while
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# the linker is already consuming them.
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if clean:
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proc = subprocess.run(base_cmd + ["clean"], cwd=bundle_dir)
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if proc.returncode != 0:
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return proc.returncode
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proc = subprocess.run(base_cmd + [f"-j{jobs}", "all"], cwd=bundle_dir)
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if proc.returncode != 0:
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return proc.returncode
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built = bundle_dir / out_obj / "nsis7z.dll"
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if not built.exists():
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print(f"ERROR: expected artifact not found: {built}", file=sys.stderr)
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return 1
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dest = ROOT / cfg["dest"]
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dest.parent.mkdir(parents=True, exist_ok=True)
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shutil.copy2(built, dest)
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if cleanup_artifacts:
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shutil.rmtree(bundle_dir / out_obj, ignore_errors=True)
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if verbose:
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print(f"[linux] Copied -> {dest}")
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if cleanup_artifacts:
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print(f"[linux] Cleaned build artifacts -> {bundle_dir / out_obj}")
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return 0
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def main() -> int:
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parser = argparse.ArgumentParser(description="Linux build path for nsis7z")
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parser.add_argument(
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"--7zip-version",
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dest="zip_version",
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choices=["19.00", "25.01", "26.00", "zstd"],
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default="26.00",
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help="7-Zip version to build",
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)
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parser.add_argument(
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"--configs",
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nargs="+",
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choices=list(CONFIGS.keys()) + ["all"],
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default=["all"],
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help="Build configuration(s): x86-ansi, x86-unicode, x64-unicode, or all",
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)
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parser.add_argument(
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"--jobs",
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default="auto",
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help="Parallel make jobs. Use an integer or 'auto' (default: auto)",
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)
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parser.add_argument(
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"--clean",
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action="store_true",
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default=True,
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help="Run 'make clean' before building (default: True)",
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)
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parser.add_argument(
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"--no-clean",
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action="store_false",
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dest="clean",
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help="Skip 'make clean' to enable incremental rebuilds",
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)
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parser.add_argument(
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"--cleanup-artifacts",
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action="store_true",
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default=True,
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help="Remove per-config build artifact directories after successful copy (default: True)",
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)
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parser.add_argument(
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"--no-cleanup-artifacts",
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action="store_false",
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dest="cleanup_artifacts",
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help="Keep per-config build artifact directories (_o_*)",
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)
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parser.add_argument("--verbose", action="store_true", help="Verbose output")
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args = parser.parse_args()
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if args.zip_version not in SUPPORTED:
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print(
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"ERROR: Linux local build is currently supported only for 26.00. "
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f"Requested: {args.zip_version}",
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file=sys.stderr,
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)
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return 2
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_require_tool("make")
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for cfg in CONFIGS.values():
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_require_tool(f"{cfg['triplet']}-gcc")
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_require_tool(f"{cfg['triplet']}-g++")
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_require_tool(f"{cfg['triplet']}-windres")
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try:
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jobs = _resolve_jobs(args.jobs)
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except ValueError as exc:
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print(f"ERROR: invalid --jobs value: {exc}", file=sys.stderr)
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return 2
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wanted = list(CONFIGS.keys()) if "all" in args.configs else args.configs
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for cfg_name in wanted:
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code = _build_one(
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args.zip_version,
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cfg_name,
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args.verbose,
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jobs,
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args.clean,
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args.cleanup_artifacts,
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)
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if code != 0:
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return code
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print("[linux] Build completed")
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return 0
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if __name__ == "__main__":
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sys.exit(main())
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