jlfwong

/**
 * 2D fluid simulation code for
 * http://jamie-wong.com/2016/08/04/webgl-fluid-simulation/
 */
window.FluidSim = function(canvasId, options) {
  options = options || {};

  options.initVFn = options.initVFn || [
    'sin(2.0 * 3.1415 * y)',
    'sin(2.0 * 3.1415 * x)'

jlfwong

SSH forwarding for Docker Desktop for Mac which respects $SSH_AUTH_SOCK

This is a quick tutorial on how to get SSH key forwarding working on Docker Desktop for Mac in situations where you want control of which ssh-agent server is being used, rather than the default.

You might want to do this to e.g. forward a specific SSH key into a docker container.

Docker has support for general SSH key forwarding, but this doesn't respect $SSH_AUTH_SOCK.

Background on ssh-agent

jlfwong

// http://bgrins.github.io/devtools-snippets/#console-save
var saveToFile = function(data, filename) {
  if (!data) {
    console.error('Console.save: No data');
    return;
  }

  if (!filename) {
    filename = 'console.json';
  }

jlfwong

// Handy for debugging sometimes
function tap(fn) {
  return function() {
    const result = fn.apply(this, arguments);
    console.log(Array.prototype.slice.call(arguments), '->', result);
    return result;
  }
}

jlfwong

.PHONY: run

run: test
	./$<

test: test.o runtime.o
	gcc -arch i386 $^ -o $@

%.o: %.asm
	nasm -f macho $< -o $@

jlfwong

// http://bgrins.github.io/devtools-snippets/#console-save
var saveToFile = function(data, filename) {
  if (!data) {
    console.error('Console.save: No data');
    return;
  }

  if (!filename) {
    filename = 'console.json';
  }

jlfwong

var foo = function() { console.log("foo"); };
var bar = function() { console.log("bar"); };

(foo())
(bar())

/*
Ouput:

(bar())

jlfwong

Building the package! RequireJS plugin, I'm getting weird side effect problems.

Requiring a package first:

> require(["package!issues.js"]); null
null
Require Package: issues.js package_loader_plugin.js?bust=1379092758956:96
XHR finished loading: "http://localhost:1234/javascript-packages.json".

jquery.js?bust=1379092758956:8526

jlfwong

Changing 4 space indentation into 2 space indentation

:set ts=4 noexpandtab | retab! | set ts=2 expandtab | retab!

Changing 4 space indentation in every CoffeeScript file in your current directory

:args ./**/*.coffee | argdo execute "set ts=4 noexpandtab | retab! | set ts=2 expandtab | retab!" | update

Thanks to bamford on #vim for the :retab! trick

jlfwong

#!/bin/bash

sandbox="$(mktemp -d)"
hasstdin=false

if [ ! -t 0 ]; then
    cat <&0 > "$sandbox/stdin.txt"
    hasstdin=true
fi