🦌

John Cairns jac18281828

🦌

Software Engineer, Unix Tinkerer, Musician, Space Traveler

jac18281828 / golangci.yml

Created September 14, 2024 15:23

go lang lint example

	run:
	timeout: 5m

	linters:
	disable-all: true
	enable:
	- errcheck # checking for unchecked errors, these unchecked errors can be critical bugs in some cases
	- govet # reports suspicious constructs, such as Printf calls whose arguments do not align with the format string
	- ineffassign # detects when assignments to existing variables are not used
	- staticcheck # is a go vet on steroids, applying a ton of static analysis checks

jac18281828 / animal.rs

Created September 10, 2024 00:23

Rust trait plaything

	use core::panic;

	trait Animal {
	fn name(&self) -> &'static str;
	fn talk(&self) {
	println!("{} cannot talk", self.name());
	}
	}

	struct Dog;

jac18281828 / diehard.rs

Last active September 2, 2024 22:22

The generalized diehard problem in rust

	use std::collections::{HashSet, VecDeque};

	#[derive(Debug, Clone, Hash, Eq, PartialEq)]
	struct State {
	containers: Vec<i64>,
	}

	#[derive(Debug, Clone, Eq, PartialEq)]
	enum Operation {
	Fill(usize), // Fill container i

jac18281828 / parse_number_or_name.rs

Created August 30, 2024 17:40

Parse values of different types in rust, pipelined

jac18281828 / dal.rs

Last active August 28, 2024 16:40

DataAccessLayr example DAL in rust

	trait DataAccessLayr {
	fn init() -> Self;

	fn write(&self, status: &eigenlayer::OperatorAVSRegistrationStatus) -> eyre::Result<()>;

	fn read(&self, status: &mut eigenlayer::OperatorAVSRegistrationStatus) -> eyre::Result<()>;
	}

jac18281828 / alloy.rs

Last active August 27, 2024 19:27

Alloy working with struct ABI data

	use eyre::Result;
	use tracing::debug;
	use serde::{Serialize, Deserialize};

	use alloy::{
	primitives::{Address, U256, B256},
	sol,
	};

	use IRewardsCoordinator::RewardsClaimed;

jac18281828 / rpcserver.rs

Created August 21, 2024 16:59

run jsonrpsee RpcServer

	pub async fn run_server(host: String, port: u16) -> eyre::Result<SocketAddr> {
	// Add a CORS middleware for handling HTTP requests.
	// This middleware does affect the response, including appropriate
	// headers to satisfy CORS. Because any origins are allowed, the
	// "Access-Control-Allow-Origin: *" header is appended to the response.
	let cors = CorsLayer::new()
	// Allow `POST` when accessing the resource
	.allow_methods([Method::POST])
	// Allow requests from any origin
	.allow_origin(Any)

jac18281828 / config.rs

Created August 20, 2024 19:08

config.json in rust

	use serde::Deserialize;

	#[derive(Debug, Clone, Deserialize)]
	pub struct Config {
	#[serde(rename = "serverHost", default = "default_host")]
	pub server_host: String,
	#[serde(rename = "serverPort", default = "default_port")]
	pub server_port: u16,
	}

jac18281828 / Dockerfile

Created August 3, 2024 00:36

Certora Dockerfile

	FROM debian:stable-slim

	RUN export DEBIAN_FRONTEND=noninteractive && \
	apt update && \
	apt install -y -q --no-install-recommends \
	ca-certificates apt-transport-https \
	curl sudo \
	python3-pip python3-venv python3 \
	default-jre && \
	apt clean && \

jac18281828 / Dockerfile

Created July 30, 2024 19:00

Install ethereum in ubuntu Dockerfile

	FROM ubuntu:24.04

	ARG HTTP_PORT=8545
	ARG ETH_VERSION=1.14.7

	RUN apt-get update \
	&& apt-get install -y software-properties-common \
	&& add-apt-repository -y ppa:ethereum/ethereum \
	&& apt-get update \
	&& apt-get install -y ethereum sudo \