#!/usr/bin/env python
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.


from __future__ import absolute_import, print_function

import argparse
import os
import subprocess
import sys
import zipfile


class ProcError(Exception):
    def __init__(self, returncode, stderr):
        self.returncode = returncode
        self.stderr = stderr


def check_output(command):
    proc = subprocess.Popen(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
    stdout, stderr = proc.communicate()
    if proc.returncode != 0:
        raise ProcError(proc.returncode, stderr)
    return stdout


def process_file(dump_syms, path):
    try:
        stdout = check_output([dump_syms, path])
    except ProcError as e:
        print('Error: running "%s %s": %s' % (dump_syms, path, e.stderr))
        return None, None, None
    bits = stdout.splitlines()[0].split(" ", 4)
    if len(bits) != 5:
        return None, None, None
    _, platform, cpu_arch, debug_id, debug_file = bits
    if debug_file.lower().endswith(".pdb"):
        sym_file = debug_file[:-4] + ".sym"
    else:
        sym_file = debug_file + ".sym"
    filename = os.path.join(debug_file, debug_id, sym_file)
    debug_filename = os.path.join(debug_file, debug_id, debug_file)
    return filename, stdout, debug_filename


def main():
    parser = argparse.ArgumentParser()
    parser.add_argument("dump_syms", help="Path to dump_syms binary")
    parser.add_argument("files", nargs="+", help="Path to files to dump symbols from")
    parser.add_argument(
        "--symbol-zip",
        default="symbols.zip",
        help="Name of zip file to put dumped symbols in",
    )
    parser.add_argument(
        "--no-binaries",
        action="store_true",
        default=False,
        help="Don't store binaries in zip file",
    )
    args = parser.parse_args()
    count = 0
    with zipfile.ZipFile(args.symbol_zip, "w", zipfile.ZIP_DEFLATED) as zf:
        for f in args.files:
            filename, contents, debug_filename = process_file(args.dump_syms, f)
            if not (filename and contents):
                print("Error dumping symbols")
                sys.exit(1)
            zf.writestr(filename, contents)
            count += 1
            if not args.no_binaries:
                zf.write(f, debug_filename)
                count += 1
    print("Added %d files to %s" % (count, args.symbol_zip))


if __name__ == "__main__":
    main()
