kot-begemot

const bip39 = require("bip39"); // mnemonic generator
const hdkey = require("hdkey"); // wallet lib
const ethUtil = require("ethereumjs-util"); // Used here for public address and public key generation

const mnemonic = bip39.generateMnemonic(); // generates string
const seed = bip39.mnemonicToSeedSync(mnemonic).toString('hex'); // creates seed for wallet

const root = hdkey.fromMasterSeed(seed);

const masterPrivateKey = root.privateKey.toString('hex');

kot-begemot

For some reason Github Gist was giving me 422 error on attempt to put a comment on this gist.

So I ended up with something like this

# lib/tasks/assets.rb
require 'fileutils'
 
namespace "assets:precompile" do
  desc "Create nondigest versions of defined assets"

task :nondigest => :environment do

kot-begemot

# This is a nice practice, since debugger take to much time to compile.
# Another point is that this way it can be easily ignored on the CI server,
# where this is not required anyway. That might save from forgotten *require "ruby-debug"*
# and *debugger* derictives in the code
group :debug do
  if RUBY_VERSION >= '1.9.0'
    gem "debugger", "~> 1.1.3"
  else
    gem 'ruby-debug'
  end