duboisf

-- Example of using coroutines with slow IO operations in Neovim.
-- It shows how to run coroutines sequentially and in "parallel".
-- The word "parallel" is in quotes because Lua coroutines are not actually
-- running in parallel, but the IO operations that they start are.
-- The coroutines are paused and resumed as the IO operations complete.
-- To run this example, put this file somewhere and do `:luafile path/to/coroutines.lua` in nvim.

local co = coroutine

vim.cmd "new"

duboisf

Get all s3 bucket policies in an aws account using nushell

In parallel! Saves output to a file so you can simply do open /tmp/bucket-policies.nuon after:

^aws s3api list-buckets
| from json
| get Buckets.Name
| par-each { |bucket|
 let policy = try {

duboisf

fleetctl user create --name 'Gitops User' \
  --password "$(cat /dev/urandom | tr -cd '[:graph:]' | head -c 32)" \
  --email [email protected] \
  --api-only \
  --global-role admin

duboisf

Multi-architecture docker builds on Linux

Install binfmt if ls /proc/sys/fs/binfmt_misc/qemu* returns nothing:

docker run --privileged --rm tonistiigi/binfmt --install all

Verify that it worked, you should see stuff by running ls /proc/sys/fs/binfmt_misc/qemu*

duboisf

#!/bin/bash

# This script diffs the content of two container images
# USAGE: ./diff-container-images.sh <registry>/<repo> <tag1> <tag2>

# strict mode
set -euo pipefail

registry_repo=$1
tag1=$2

duboisf

mkfifo /tmp/pcap.fifo
# Note: DO NOT use the -it option with exec!
kubectl exec deploy/some-pod -c istio-proxy -- bash -c "sudo tcpdump -s0 -U -n -i eth0 -w - " > /tmp/pcap.fifo
wireshark -k -i /tmp/pcap.fifo

duboisf

I keep tripping up because I forget to add --hidden and use * instead of **:

rg --hidden --glob='**/.github/**' <PATTERN>

duboisf

With the kitty terminal, you can send desktop notifications with the following (example taken from the kitty docs):

printf '\x1b]99;i=1:d=0;Hello world\x1b\\'
printf '\x1b]99;i=1:d=1:p=body;This is cool\x1b\\'

For details about how this works is here.

duboisf

Small app to detect and show fixed Nerfont moved codepoints

I wrote versions in golang and rust.

With golang it was a walk in the park but I've writen a lot of go.

I just started learning rust and oh boy did I struggle 😅

nushell script to watch for changes

duboisf

export def --wrapped aws [...rest]: nothing -> list<any> {
    if ($rest | last) == "help" {
        ^aws ...$rest
    } else {
        ^aws --output json ...$rest | from json | get-first
    }
}

export def "get-first" []: record -> any {
    let input = $in