FlakM

1. Is the problem well defined
   1. why is the problem occurring
   2. what is the outcome of the problem
   3. why hasn't it come up earlier
   4. what are possible solutions
2. can you reproduce it in automated manner
   1. write automated test reproducing error
   2. if a problem is rather statistical, can you measure changes in a very fast and repeatable way
   3. describe manual tests if they were performed
3. can you check if the change doesn't break anything else

FlakM

/**
  * Copy given string into clipboard. 
  *
  * @param s string that should be copied into clipboard
  */
def yank(s: String) = {
  val stringSelection = new java.awt.datatransfer.StringSelection(s)
  val clipboard = java.awt.Toolkit.getDefaultToolkit().getSystemClipboard()
  clipboard.setContents(stringSelection, null)
}

FlakM

Setting up qemu VM using nix flakes

Did you know that it is rather easy to setup a VM to test your NixOs configuration?

Create simple flake:

# flake.nix
{
  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";

FlakM

//! ```cargo
//! [dependencies]
//! 
//! axum = "0.6.20"
//! lazy_static = "1.4.0"
//! serde = "1.0.183"
//! serde_json = "1.0.104"
//! tokio = { version = "1.30.0", features = ["full"] }
//! ```
use axum::response::IntoResponse;

FlakM

#![no_std]
#![no_main]
use aya_bpf::helpers::bpf_get_current_pid_tgid;
use aya_bpf::helpers::gen::bpf_ktime_get_ns;
use aya_bpf::helpers::bpf_probe_read_user_str_bytes;
use aya_bpf::helpers::bpf_probe_read_kernel_str_bytes;
use aya_bpf::BpfContext;
use aya_bpf::{
    macros::map,
    macros::{uprobe, uretprobe},

FlakM

#!/usr/bin/env python3
# Usage: pager_duty.py <MM.YYYY> <User Name>
# Example: ./pager_duty.py 12.2023 "Maciej Flak"

import http.client
import json
import sys
import os
from datetime import datetime, timedelta