toy

./binary_name # run default task
./binary_name greeting # run greeting task
./binary_name -T # list tasks
./binary_name -h # help

Or put on PATH and use binary_name …

toy

#!/usr/bin/env ruby

require 'time'

require 'bundler/inline'

gemfile do
  source 'https://rubygems.org'

  gem 'faraday'

toy

/random.*

toy

/*.gem
/Gemfile.lock
/data/

toy

#!/usr/bin/env ruby

require 'logger'
require_relative 'graphite'

# https://hackaday.io/project/5301-reverse-engineering-a-low-cost-usb-co-monitor
class CO2Reader
  MAGIC_BYTES = 'Htemp99e'.bytes.map{ |b| ((b >> 4) | (b << 4)) & 0xff }
  MAGIC_ORDER = [2, 4, 0, 7, 1, 6, 5, 3]

toy

def (Rails.logger).red(*args)
  s = "\e[31m"
  if match = caller.first.match(/^(.*):(\d+)(?:$|:in `)/)
    path = match[1]
    line_number = match[2].to_i
    code = begin
      File.open(path) do |f|
        (line_number - 1).times { f.gets }
        f.gets[/red\s*(.*)\s*/, 1]
      end

toy

require 'benchmark'

def sh_command_v(name)
  path = `sh -c 'command -v #{name}'`.strip
  path unless path.empty?
end

def sh_which(name)
  path = `which #{name}`.strip
  path unless path.empty?

toy

# started with http://www.postal-code.com/binarycode/2009/06/06/better-range-intersection-in-ruby/
# added handling of exclude_end
# fixed slowness with ruby 1.8 as even `0...10000000 & 5000000...15000000` took few seconds to run

class Range
  def intersection(other)
    raise ArgumentError, 'value must be a Range' unless other.kind_of?(Range)

    intersection_begin = case
    when self.include?(other.begin)