Doug Tangren softprops

®️

Rustling

rusting at sea

softprops / non_repeating_rand.rs

Created June 12, 2021 06:39

	use rand; // 0.8.3
	use rand::Rng;
	use std::iter::successors;

	fn non_repeating<T: std::cmp::PartialEq + Clone>(src: &[T]) -> impl Iterator<Item = &T> + '_ {
	let mut rng = rand::thread_rng();
	successors(Some(&src[rng.gen_range(0..src.len())]), move \|n\| {
	let mut next = &src[rng.gen_range(0..src.len())];
	while next == *n {
	next = &src[rng.gen_range(0..src.len())];

softprops / human-readable.sh

Created January 1, 2020 19:49

	function getHumanReadable() {
	echo $(echo $1 \| awk '{ sum=$1 ; hum[10243]="Gb";hum[10242]="Mb";hum[1024]="Kb"; for (x=1024**3; x>=1024; x/=1024){ if (sum>=x) { printf "%.2f %s\n",sum/x,hum[x];break } }}')

	}

softprops / docker-diff-default.txt

Created October 12, 2019 01:22

This file has been truncated, but you can view the full file.

	docker diff 7a3036a55355
	C /root
	A /root/.cargo
	A /root/.cargo/bin
	A /root/.cargo/bin/rustfmt
	A /root/.cargo/bin/rustup
	A /root/.cargo/bin/cargo-fmt
	A /root/.cargo/bin/clippy-driver
	A /root/.cargo/bin/rustc
	A /root/.cargo/bin/rustdoc

softprops / report.rs

Created September 21, 2019 10:30

	struct Position { line: usize, col: usize }

	fn report<P>(path: P, content: &str, pos: &Position, error: &str)
	where
	P: AsRef<Path>,
	{
	let Position { line, col } = pos;
	println!(
	"{}",
	format!("--> {}:{}:{}", path.as_ref().display(), line, col).dimmed()

softprops / ecs-exec.sh

Last active November 25, 2022 02:30

when you want `docker exec` but your containers live on ecs container instances. assumes an vpn bastion host

	#!/usr/bin/env bash
	# runs an arbitrary command on a remote ecs target
	#
	# usage: `ecs-exec bash`
	#
	# ssh credentials
	#
	# Add the following to your ~/.ssh/config file
	#
	# Assumes ec2 bastion key for authenicating

softprops / ecr-cost-usage.sh

Last active March 25, 2019 13:54

	#!/usr/bin/env bash

	# discover what values you can use for a given service in the last 3 months
	#
	# aws ce get-dimension-values \
	# --dimension SERVICE \
	# --time-period Start=$(date -v-3m +%Y-%m-01),End=$(date +%Y-%m-01) \
	# --query 'DimensionValues[*].Value'

	# last 3 months of ecr usage/spend

softprops / rust-binsize.log

Created January 19, 2019 20:29

impact of rust 1.32.0 removing jemalloc infavor of default system allocator (296K less bytes)

	~/c/r/binsize ❯❯❯ rustc --version
	rustc 1.31.1 (b6c32da9b 2018-12-18)
	~/c/r/binsize ❯❯❯ cat src/main.rs
	fn main() {
	println!("Hello, world!");
	}
	~/c/r/binsize ❯❯❯ cargo build
	Finished dev [unoptimized + debuginfo] target(s) in 0.06s
	~/c/r/binsize ❯❯❯ du target/debug/binsize
	576K target/debug/binsize

softprops / ssm-policy.json

Created October 22, 2018 23:27

	{
	"Version": "2012-10-17",
	"Statement": [
	{
	"Effect": "Allow",
	"Action": [
	"ssm:GetParametersByPath"
	],
	"Resource": "arn:aws:ssm:<region>:<account>:parameter/grand-rustacean-central/*"
	}

softprops / envy_store_example.rs

Last active October 23, 2018 17:19

	extern crate envy_store;
	#[macro_use]
	extern crate serde_derive;
	extern crate tokio;

	use tokio::runtime::Runtime;

	// parameter names map to field names
	#[derive(Deserialize, Debug)]
	struct Config {

softprops / aws-ssm-put-parameter.sh

Created October 22, 2018 23:13