nicholaides

#!/usr/bin/env sh

##
# This is script with usefull tips taken from:
#   https://github.com/mathiasbynens/dotfiles/blob/master/.osx
#
# install it:
#   curl -sL https://raw.github.com/gist/2108403/hack.sh | sh
#

nicholaides

# Usage: rake -P | ruby rake-prereqs-to-dot.rb | dot -Tpng | imgcat

require 'pp'

tasks = {}
dependencies = nil

ARGF.each_line.lazy.map(&:strip).each do |line|
  if match = line.match(/^rake (.*)/)
    dependencies = tasks[match[1]] ||= []

nicholaides

# Like sh, but
# 1. lets you specify a file to redirect output to and
# 2. removes the file if there's an error
def sh_redirect(*args, out:)
  sh(*args, { out: out }, {}) do |ok, status|
    unless ok
      rm_f out
      raise "Command failed: `#{args.join(' ')}`\nDeleted `#{out}`"
    end
  end