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#!/bin/bash

# Downloads and install a .dmg from a URL
#
# Usage
# $ dmginstall [url]
# 
# For example, for installing alfred.app
# $ dmginstall http://cachefly.alfredapp.com/alfred_1.3.1_261.dmg
#

evaldasg

Originally published in June 2008

When hiring Ruby on Rails programmers, knowing the right questions to ask during an interview was a real challenge for me at first. In 30 minutes or less, it's difficult to get a solid read on a candidate's skill set without looking at code they've previously written. And in the corporate/enterprise world, I often don't have access to their previous work.

To ensure we hired competent ruby developers at my last job, I created a list of 15 ruby questions -- a ruby measuring stick if you will -- to select the cream of the crop that walked through our doors.

What to expect

Candidates will typically give you a range of responses based on their experience and personality. So it's up to you to decide the correctness of their answer.

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select name,setting,category,source from pg_settings where category IN( 'Reporting and Logging / Where to Log', 'File Locations' ) order by category,name;

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# .railsrc for Rails 3, encoding: utf-8
#   see http://rbjl.net/49-railsrc-rails-console-snippets

if !Rails.application then warn "Rails isn't loaded, yet... skipping .railsrc" else
# # #

def ripl?; defined?(Ripl) && Ripl.instance_variable_get(:@shell); end

# # #
# loggers

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IO Open Mode

Ruby allows the following open modes:

"r"  Read-only, starts at beginning of file  (default mode).

"r+" Read-write, starts at beginning of file.

"w"  Write-only, truncates existing file

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#!/usr/bin/env ruby
# This prints to the console 256 colors for foreground & background

%w(38 48).each do |fgbg| # Foreground/Background
  (0..256).each do |color|
    print "\e[#{fgbg};5;#{color}m" + " #{color}".ljust(8, ' ') + "\e[0m"
    print "\n" if (color + 1) % 10 == 0
  end
  print "\n\n"
end

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from: https://www.johnhawthorn.com/2012/09/vi-escape-delays/

Eliminating delays on ESC in vim and zsh

While having a vim discussion on twitter with @_jaredn, I remembered that having a delay in entering normal mode after pressing ESC (switching to normal mode) really frustrates me. This delay exists because many keys (arrows keys, ALT) rely on it as an escape character. Here’s the setup I’ve used for a while for near instantaneous switch into normal mode.

vim

A simple solution for vim is to :set esckeys. However, this will break any sequences using escape in insert mode.

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source "https://rubygems.org"

gem "progressbar"

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# In order for gpg to find gpg-agent, gpg-agent must be running, and there must be an env
# variable pointing GPG to the gpg-agent socket. This little script, which must be sourced
# in your shell's init script (ie, .bash_profile, .zshrc, whatever), will either start
# gpg-agent or set up the GPG_AGENT_INFO variable if it's already running.

# Add the following to your shell init to set up gpg-agent automatically for every shell
if [ -f ~/.gnupg/.gpg-agent-info ] && [ -n "$(pgrep gpg-agent)" ]; then
    source ~/.gnupg/.gpg-agent-info
    export GPG_AGENT_INFO
else

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Send email to multiple recipients

Send multiple emails to different recipients.

Mailer class

# app/mailers/notify_mailer.rb

class NotifyMailer < ApplicationMailer