Nick Guenther kousu

Just because the docs on https://github.com/42wim/matterbridge/wiki/ are a little bit obscure in some parts, here's a complete record of what I did:

sudo pacman -S matterbridge
Set up a generic systemd service file:

$ cat /etc/systemd/system/matterbridge\@.service 
[Unit]
Description=%I Chat Bridge
After=network-online.target

I've found a confusing behaviour in Linux's version of du(1). du can take a single folder to recurse into, or list of files/folders either via --files0-from or in argv. But its behaviour is inconsistent if this list contains parents and children.

A child given before its parent makes the parent count as empty
With -s (or equivalently -d 0), a parent given before its child (vice versa) skips the child

OpenBSD's du conversely has consistent behaviour: it always outputs one line (or block of lines, if not given -s) per input, and always counts everything as full-sized, parent and child.

This is a wrapper around docker exec that makes sure to set up a matching user; it also has a pre-script hook. It's kind of janky but it was useful.

It's a lot like Microsoft's `wsl -- command'

Originally written as part of https://github.com/neuropoly/spinalcordtoolbox/blob/916ab591ca2e35cab9f5f27ec2439ce8fdb0b9d2/util/dockerize.sh but that project migrated to Github Actions.

We used it like this:

# if this is a docker job, run in the container instead; but if not just run it here.

Extract an indented block from a file, starting from a given header line.

Usage: extract.awk HEADER file

e.g.

$ ./extract.awk a t
   a() {

showterm.io

Installation:

mkdir -p ~/.local/bin
curl https://gist.githubusercontent.com/kousu/855c164979af078f623fd44f0e1b5350/raw/6536924551c9de7143492c407f4e584389ba3f9f/showterm > .local/bin/showterm
chmod +x .local/bin/showterm

	#!/usr/bin/env python

	# this is a tiny little clone of `nc -U -l path`
	# but it creates the socket after chdir()ing in a subprocess to avoid ENAMETOOLONG:
	#
	# To test the difference, get openbsd-netcat and run:
	#
	# mkdir -p /tmp/abcdefhijklmnopqrstuvwxyz/abcdefhijklmnopqrstuvwxyz/abcdefhijklmnopqrstuvwxyz/abcdefhijklmnopqrstuvwxyz
	# nc -v -U -l /tmp/abcdefhijklmnopqrstuvwxyz/abcdefhijklmnopqrstuvwxyz/abcdefhijklmnopqrstuvwxyz/abcdefhijklmnopqrstuvwxyz/ipc.sock
	#

	#!/usr/bin/env python3
	#
	# The missing 'pip integrity' command.
	#
	# This verifies the correctness of an unpacked pip package
	# by examining the file hashes in the 'RECORD' file.
	# spec at https://peps.python.org/pep-0427/#the-dist-info-directory

	import sys
	import base64

	<?xml version='1.0' encoding='utf-8'?>
	<MixxxControllerPreset schemaVersion="1" mixxxVersion="2.3.0">
	<info>
	<name>Akai MPK Mini</name>
	</info>
	<controller id="AkaiMPKMini">
	<scriptfiles/>
	<controls>

	<!-- Master -->

	import os.path

	def sanitize_path(path):
	"""
	Sanitize a path against directory traversals

	Based on https://stackoverflow.com/questions/13939120/sanitizing-a-file-path-in-python.

	>>> sanitize_path('../test')
	'test'