leejarvis

#!/usr/bin/env ruby

# Simple configuration

require 'singleton'

class Foo
  class Config < Struct.new(:first_name, :last_name)
    include Singleton
  end

leejarvis

module SqlRandom
  module Relation
    def shuffled
      rand_cmd = if connection.adapter_name =~ /mysql/i
        'rand()'
      else
        'random()'
      end
      clone.order(rand_cmd)
    end

leejarvis

#!/usr/bin/env ruby

module GroupSend
  def group_send(methods, *calls)
    items = []

    Array(methods).each do |meth|
      calls.each { |c| items << self.send(meth).send(c) }
    end

leejarvis

#!/usr/bin/env ruby

class TryProxy
  def initialize(object)
    @object = object
  end

  def method_missing(meth, *args, &block)
    if @object.respond_to?(meth)
      @object.__send__(meth, *args, &block)

leejarvis

#!/usr/bin/env ruby

begin
  require './config/environment'
rescue LoadError
  abort 'Not in a rails environment?'
end

tables = ActiveRecord::Base.connection.tables

leejarvis

#!/usr/bin/env perl

use Data::Dumper;
use Slop;

my $opts = Slop->new();

$opts->on('v', 'version', sub { print 'version 1.0.0'});
$opts->on('n=', 'name=', 'Your name');
$opts->parse(@ARGV);

leejarvis

#!/usr/bin/env perl

use Data::Dumper;

my $opts = Slop->new();

$opts->on('v', 'version', sub { print 'version 1.0.0'});
$opts->on('n=', 'name=', 'Your name');
$opts->parse(@ARGV);

leejarvis

#!/usr/bin/env ruby

# dont try this at home

items = [{ a: 1, b: 2 }, { a: 1, b: 3 }, { a: 4, b: 5 }]
items = items.each_with_object(Hash.new { |h, k| h[k] = [] }) { |i, o| o[i[:a]] << i[:b] }.map { |k, v| [k, v.join(', ')] }

p items #=> [[1, "2, 3"], [4, "5"]]

leejarvis

# Slop version 3

commands = Slop::Commands.new do
  banner "ruby foo.rb [options]\n"

  on 'new' do
    on '-F', '--force', 'Force creation'
    on '--outdir=', 'Output directory'
  end

leejarvis

# Slop version 3

require 'slop'

opts = Slop.optspec(<<-SPEC)
n,name=  Your name
p,pass=? An optional password
A,auth   Use authentication (requires password)
SPEC