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from collections import namedtuple | |
## Convention | |
## 4 3 2 1 size discs are stored as [ 4,3,2,1 ] | |
## name -> string | |
## discs -> sparse reverse sorted array of number | |
Peg = namedtuple('Peg', ['name', 'discs']) |
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Create ssh host <username>-<vmname> for libvirt | |
#1. Add this to TOP of ~/.ssh/config | |
Include ~/.ssh/config.d/* | |
Top means top, specifically, do not add after a Host entry | |
#2. This bash function: | |
```bash | |
vmssh () | |
{ |
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HostkeyAlgorithms +ssh-rsa | |
PubkeyAcceptedAlgorithms +ssh-rsa |
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qemu-img create -f qcow2 arch-root.qcow2 64G | |
sudo modprobe nbd | |
sudo qemu-nbd -c /dev/nbd0 arch-root.qcow2 | |
sudo cfdisk -z /dev/nbd0 | |
# make dos partition table | |
# make a new partition, make it bootable | |
sudo mkfs.ext4 /dev/nbd0p1 | |
sudo mount /dev/nbd0p1 /mnt/ |
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implementation("org.apache.logging.log4j:log4j-api:2.19.0") | |
implementation("org.apache.logging.log4j:log4j-core:2.19.0") | |
private static final Logger LOG = LogManager.getLogger(Main.class); | |
private static void setLogLevel(Level level) { | |
LoggerContext ctx = (LoggerContext) LogManager.getContext(false); |
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#!/bin/sh | |
## tmux-run <window-name> <cmd args ...> | |
## start if session not running | |
if [ "x$TMUX" = "x" ] ; | |
then | |
tmux new -As0 \; detach-client | |
fi |
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#!/bin/bash | |
PGDATADIR=pgdata | |
mkdir -p $PGDATADIR | |
usage () { | |
echo "** Disposable postgres installtions for testing **" | |
echo "" | |
echo "$0 <cmd> [ args .... ] " | |
echo " =cmd= =args...=" |
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const root = (typeof window === 'undefined') ? global : window; | |
function LambdaClosure() { | |
return () => { | |
if ( this == root ) | |
console.log('Closure: this is global/window'); | |
else | |
console.log('Closure: this is ', this.name); |
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<!DOCTYPE html> | |
<html lang="en"> | |
<head> | |
<meta charset="utf-8"> | |
<title>Sierpiński triangle</title> | |
<link rel="stylesheet" href="style.css"> | |
<script> | |
document.addEventListener('DOMContentLoaded', (event) => { | |
const canvas = document.getElementById('canvas'); | |
var ctx = canvas.getContext("2d"); |
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