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#!/usr/bin/python3

"""Report an error that can be recovered from.

This application should be called with its standard input pipe fed a
nul-separated list of key-value pairs.
"""

# Copyright (C) 2012 Canonical Ltd.
# Author: Evan Dandrea <ev@ubuntu.com>
#
# This program 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 2 of the License, or (at your
# option) any later version.  See http://www.gnu.org/copyleft/gpl.html for
# the full text of the license.

import argparse
import os
import sys

import apport.report


# pylint: disable-next=missing-function-docstring
def main():
    # Check parameters
    argparser = argparse.ArgumentParser("%(prog) [options]")
    argparser.add_argument("-p", "--pid", action="store", type=int, dest="optpid")
    args = argparser.parse_args()

    # Build the base report
    report = apport.report.Report("RecoverableProblem")

    # If we have a parameter pid, use that, otherwise look to our parent
    if args.optpid:
        report.pid = args.optpid
    else:
        report.pid = os.getppid()

    # Grab PID info right away, as we don't know how long it'll stick around
    try:
        report.add_proc_info(report.pid)
    except ValueError as error:
        # The process may have gone away before we could get to it.
        if str(error) == "invalid process":
            return

    # Get the info on the bug
    items = sys.stdin.read().split("\0")
    if len(items) % 2 != 0:
        sys.stderr.write(
            "Expect even number of fields in stdin,"
            " needs to have pairs of key and value.\n"
        )
        sys.exit(1)

    while items:
        key = items.pop(0)
        if not items:
            break
        value = items.pop(0)
        report[key] = value

    # Put in the more general stuff
    report.add_os_info()
    report.add_user_info()

    duplicate_signature = report.get("DuplicateSignature", "")
    exec_path = report.get("ExecutablePath", "")
    if exec_path and duplicate_signature:
        report["DuplicateSignature"] = f"{exec_path}:{duplicate_signature}"

    # Write the final report
    try:
        with apport.fileutils.make_report_file(report) as report_file:
            report.write(report_file)
    except OSError as error:
        apport.fatal("Cannot create report: %s", str(error))


if __name__ == "__main__":
    main()