njvitto

#Deploy and rollback on Heroku in staging and production
task :deploy_staging => ['deploy:set_staging_app', 'deploy:push', 'deploy:restart', 'deploy:tag']
task :deploy_production => ['deploy:set_production_app', 'deploy:push', 'deploy:restart', 'deploy:tag']

namespace :deploy do
  PRODUCTION_APP = 'YOUR_PRODUCTION_APP_NAME_ON_HEROKU'
  STAGING_APP = 'YOUR_STAGING_APP_NAME_ON_HEROKU'

  task :staging_migrations => [:set_staging_app, :push, :off, :migrate, :restart, :on, :tag]
  task :staging_rollback => [:set_staging_app, :off, :push_previous, :restart, :on]

j05h

  class Numeric
    def to_rad
      self * Math::PI / 180
    end
  end
 
  # http://www.movable-type.co.uk/scripts/latlong.html
  # loc1 and loc2 are arrays of [latitude, longitude]
  def distance loc1, loc2
     lat1, lon1 = loc1

brendanjerwin

#! /bin/bash

open $1 -a /Applications/iA\ Writer.app

demonbane

#!/bin/sh

echo "What should the Application be called (no spaces allowed e.g. GCal)?"
read inputline
name="$inputline"

echo "What is the url (e.g. https://www.google.com/calendar/render)?"
read inputline
url="$inputline"

nesquena

class IndexUsersEmails < ActiveRecord::Migration
  def self.up
    execute "END"
    add_pg_index :users, :email, :lock => false
    execute "BEGIN"
  end
end

bgreenlee

import subprocess
import select
from logging import DEBUG, ERROR


def call(popenargs, logger, stdout_log_level=DEBUG, stderr_log_level=ERROR, **kwargs):
    """
    Variant of subprocess.call that accepts a logger instead of stdout/stderr,
    and logs stdout messages via logger.debug and stderr messages via
    logger.error.

isaacsanders

This is a post by Joel Spolsky. The original post is linked at the bottom.

This is such a common question here and elsewhere that I will attempt to write the world's most canonical answer to this question. Hopefully in the future when someone on answers.onstartups asks how to split up the ownership of their new company, you can simply point to this answer.

The most important principle: Fairness, and the perception of fairness, is much more valuable than owning a large stake. Almost everything that can go wrong in a startup will go wrong, and one of the biggest things that can go wrong is huge, angry, shouting matches between the founders as to who worked harder, who owns more, whose idea was it anyway, etc. That is why I would always rather split a new company 50-50 with a friend than insist on owning 60% because "it was my idea," or because "I was more experienced" or anything else. Why? Because if I split the company 60-40, the company is going to fail when we argue ourselves to death. And if you ju

garnaat

In [1]: import boto

In [2]: c = boto.connect_s3()

In [3]: b = c.lookup('stats.pythonboto.org')

In [4]: k = b.new_key('test1234')

In [5]: def mycb(so_far, total):
   ...:     print '%d bytes transferred out of %d' % (so_far, total)

peter

# 0. Make sure you have Ruby 1.9.3 installed, and optionally RVM and PostgreSQL

# 0.2 If you are on the Mac, make sure you have a c compiler by installing XCode Command Line Tools or gcc4.2 with homebrew
# https://github.com/mxcl/homebrew/wiki/Custom-GCC-and-cross-compilers

# 0.5 Make sure you have bundler version ~> 1.2 as Rails depends on it
gem install bundler

# 1. Get edge Rails source (master branch)
git clone https://github.com/rails/rails.git

bgrins

Javascript log Function

Every time I start a new project, I want to pull in a log function that allows the same functionality as the console.log, including the full functionality of the Console API.

There are a lot of ways to do this, but many are lacking. A common problem with wrapper functions is that the line number that shows up next to the log is the line number of the log function itself, not where log was invoked. There are also times where the arguments get logged in a way that isn't quite the same as the native function.

This is an attempt to once and for all document the function that I pull in to new projects. There are two different options:

• The full version: Inspired by the plugin in HTML5 Boilerplate. Use this if you are writing an application and want to create a window.log function. Additionally,