olebedev

-- Sample script to make an HTTP request with query parameters
local response = http.request {
  url = 'http://www.random.org/integers/',
  params = {
      num=1, min=0, max=1, format='plain',
      rnd='new', col=1, base=10
  }
}
if tonumber(response.content) == 0 then
  return 'heads'

olebedev

var app = app || {
  id:         "unique application instance id",
  session_id: "unique session id",
  render: function(){
    console.log("%c %s","font-size: 50px;color:yellow;", 
      "chat changed!");
    console.table(chat);
  }
};

olebedev

#!/usr/bin/env bash
rm go-swarm.test || true
nohup go test -c -gcflags '-N -l' -work github.com/olebedev/go-swarm
WORK=$(cat nohup.out)
rm nohup.out
cgdb go-swarm.test -- -d ${WORK#WORK=} || rm go-swarm.test || true
# gdb --tui go-swarm.test -d ${WORK#WORK=} || rm go-swarm.test || true
rm go-swarm.test || true
echo ${WORK#WORK=}

olebedev

How to cross compile Go with CGO programs for a different OS/Arch

It is possible to compile Go programs for a different OS, even though go build says otherwise.

You'll need:

• a valid toolchain for the platform/os you're targetting
• Go Tip (works on 1.1 and 1.2rc1 but you might as well be on tip)
• golang-crosscompile helper script https://github.com/davecheney/golang-crosscompile
• the patch provided

olebedev

package main

import (
    "fmt"
	  "log"
    "net"
    "net/mail"
	  "net/smtp"
    "crypto/tls"
)

olebedev

Deploy your own PaaS!

Setting up Dokku with DigitalOcean and Namecheap

..or how I made my own heroku in a few hours for $3.98.

This write-up owes a great deal to dscape's Node.js Deployments with Docker, Dokku, & Digital Ocean, the dokku project itself, and the fine folks working on dokku's issues. I took dscape's article as a starting point when trying this out but found some details lacking so I documented my own process for getting dokku up and running.

1. Get a domain

olebedev

#!/bin/sh

# OPTIONAL FLAGS:
#
# -geoip true 
#       this will install maxmind geoip and auto update crontab file
#
# -cloudwatch true
#       this will install aws cloud watch metrics and send them to aws dashboard
#

olebedev

function Promise() {
	var callbacks = [],
		promise = {
			resolve: resolve,
			reject: reject,
			then: then,
			safe: {
				then: function safeThen(resolve, reject) {
					promise.then(resolve, reject);
				}

olebedev

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

olebedev

box: wercker/golang
# Add services here
# Build definition
build:
  # The steps that will be executed on build
  steps:
    # Sets the go workspace and places you package
    # at the right place in the workspace tree
    - setup-go-workspace