ktosiek

$ flatpak enter org.remmina.Remmina
$ flatpak-spawn --host true
Portal call failed: org.freedesktop.DBus.Error.ServiceUnknown

Resolution: use something like Flatseal to give Remmina access to org.freedesktop.Flatpak (not just org.freedesktop.portal.Flatpak)

ktosiek

import gc
from itertools import chain
from weakref import WeakKeyDictionary

from signals import Signal
import signals.other_file  # noqa


def find_instance_names(cls: type):
    results = WeakKeyDictionary()

ktosiek

// Monitor all chmods and renames in the system.
// Some of those take an fd, so also track all openat calls to know where the files live.

tracepoint:syscalls:sys_enter_chmod {
  printf("%u %s %s %u\n", pid, comm, str(args->filename), args->mode);
}

tracepoint:syscalls:sys_enter_fchmod {
  printf("%u %s %u %s %u\n", pid, comm, args->fd, @fds[pid, args->fd], args->mode);
}

ktosiek

Workaround for DNS being down after disconnecting from SSTP VPN

When to use?

When you are using network-manager-sstp with Automatic DNS configuration, but don't have resolveconf installed. This will trigger the bug, and make your /etc/resolv.conf readable only by root.

How to use this fix?

Copy content of ip-up.local.sh to /etc/ppp/ip-up.local, and sudo chmod +x /etc/ppp/ip-up.local.

Why it works?

ktosiek

#!/usr/bin/env bash

# Heavily based on https://github.com/getsentry/onpremise/blob/fb125a1e4c40701b32f974f6eb2c46a05ca2cd78/test.sh#L80

load_options() {
  while [[ -n "$1" ]]; do
    case "$1" in
	    -h | --help) show_help; exit;;
	    --) shift; SENTRY_DSN=$1;;
	    *) echo "Unexpected argument: $1. Use --help for usage information."; exit 1;;

ktosiek

; /usr/share/pulseaudio/alsa-mixer/profile-sets/astro-a50-gen4.conf

[General]
auto-profiles = yes

[Mapping analog-voice]
description = Voice
device-strings = hw:%f,0,0
channel-map = left,right
paths-output = steelseries-arctis-output-chat-common

ktosiek

Graphene 2: 6.852552616968751
Graphene 3: 15.776521055027843

ktosiek

import graphql.execution.executor

def complete_value(exe_context, return_type, field_asts, info, path, result):
    if isinstance(result, RawGraphQLResult):
        return result.value
    return _complete_value(exe_context, return_type, field_asts, info, path, result)

class RawGraphQLResult:
    def __init__(self, value):
        self.value = value

ktosiek

create table unique_test (
  id serial primary key,
  u integer unique not null, text text
);
insert into unique_test select i as u, i as text
from generate_series(7, 10007) as i;

# explain verbose select u, text from unique_test group by id;
                                  QUERY PLAN                                   
-------------------------------------------------------------------------------

ktosiek

>>> with client.capture_exceptions():
...     print(1 + {})