Dor Kleiman configurator

configurator / header.bash

Created July 16, 2020 14:41

Bash header for safer code

	#!/bin/bash

	set -e # exit on error
	set -u # error on undefined variable
	set -o posix # errors in $() expressions propagate outwards
	set -o pipefail # errors in a pipeline will propagate outwards

	# set -e
	# Any command returning a nonzero code will exit the script
	# If you need to run a command that may file, use it either in `if` expressions, or part of an `or` expression such as `command \|\| true`

configurator / reserve-proxy.js

Created March 23, 2020 13:35

A basic reverse proxy in node.js

	// This reverse proxy is for local development only
	const express = require("express");
	const proxy = require("express-http-proxy");

	const app = express();

	const proxyPort = 8000;
	const webpackPort = 8080;

	app.use("/", proxy(`http://localhost:${webpackPort}`));

configurator / component.jsx

Created November 3, 2019 09:22

Using components that require a loaded script using react-load-script

	import React from 'react';
	import Loader from './loader';

	const drawChart = (data, div) => {
	// omitted
	// Can use the loaded script safely
	}

	export default ({data}) => (
	<Loader>

configurator / Dockerfile

Created March 29, 2018 20:30

UPX in Docker breaks Go app

	# Build app
	FROM golang as builder
	COPY . /build
	RUN cd /build && CGO_ENABLED=0 go build -ldflags='-s -w' app.go

	# Compress
	FROM lalyos/upx as compressor
	COPY --from=builder /build/app /compress/
	RUN ["upx", "/compress/app"]

configurator / balls..html

Last active June 7, 2017 17:12

Balls.

	<html>
	<head>
	<title>Balls.</title>
	<meta name="viewport" content="width=device-width" />
	<style>
	html, body {
	width: 100vw;
	height: 100vh;
	margin: 0;
	display: flex;

configurator / gist:5ca2b928c9c82827c6a734f690b28c04

Created June 1, 2017 17:16

When git gc does exactly the opposite of what you expect

	user@PENSIVE ~ $ du -sh *-web/.git/objects
	42M 2-paystream-web/.git/objects
	57M 3-paystream-web/.git/objects
	73M 4-paystream-web/.git/objects
	8.1M paystream-web/.git/objects
	user@PENSIVE ~ $ for i in *web; do pushd $i; git gc; popd; done
	~/2-paystream-web ~
	Counting objects: 171965, done.
	Delta compression using up to 8 threads.
	Compressing objects: 100% (33235/33235), done.

configurator / 0_reuse_code.js

Last active August 29, 2015 14:16

Here are some things you can do with Gists in GistBox.

	// Use Gists to store code you would like to remember later on
	console.log(window); // log the "window" object to the console

configurator / gist:cd0cb436e43001b9cab4

Created October 15, 2014 22:41

ErrorDiffusion dithering using the Sierra Matrix

	/// <summary>
	/// See http://en.wikipedia.org/wiki/Floyd-Steinberg_dithering for algorithm details.
	/// The matrix used is Sierra [/32]:
	/// x 5 3
	/// 2 4 5 4 2
	/// 2 3 2
	/// </summary>
	protected static Bitmap ErrorDiffusion(System.Drawing.Image bitmap) {
	const double limit = 0.5;
	var errors = new ErrorArray(bitmap.Width, bitmap.Height);

configurator / UltimateTestCase.cs

Created October 10, 2014 00:32

100% test coverage is easy. Making it useful is practically impossible.

	using System;
	using System.Collections.Generic;
	using System.IO;
	using System.Linq;
	using System.Reflection;
	using System.Text;

	namespace Misadonet.Server.Test {
	class UltimateTestCase {
	public void Run() {

configurator / fizzbuzz.hs

Created December 14, 2013 16:32

FizzBuzz in Haskell

	import Control.Applicative

	options = [(3, "Fizz"), (5, "Buzz")]

	collect :: [(Integer, String)] -> Integer -> String
	collect [] x = ""
	collect ((divisor,string):rest) x
	\| x `mod` divisor == 0 = string ++ collect rest x
	\| otherwise = collect rest x