olebedev

Sublime Text 2 – Useful Shortcuts (Mac OS X)

General

⌘T	go to file
⌘⌃P	go to project
⌘R	go to methods
⌃G	go to line
⌘KB	toggle side bar
⌘⇧P	command prompt

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

olebedev

// takes arguments and produces an array of functions that accept context
function handle_args() {
  var args = Array.prototype.slice.call(arguments);
  return args.map(function(arg) {
    if(arg instanceof Function) return arg; // Presumably already a contex-accepting function.
    if(arg instanceof Array) return and.apply(this, arg); // make arrays behave as and.
    // Presuming a string, build a function to check.
    var my_regex = new RegExp(arg.toString(), 'i');
    return function(context) {
      return context.search(my_regex) > -1;

olebedev

deploy:
  steps:
    - add-to-known_hosts:
        hostname: $HOSTNAME
    - add-ssh-key:
        keyname: KEY
    - script:
        name: Push to dokku
        code: |
          git remote add dokku dokku@$HOSTNAME:$APP