Sergei Rogulev lain0

This list is based on aliases_spec.rb.

Pre-commit hook

This is a pre-commit script that will see the git diff and run the appropriate checks like JSHint and Rubocop

You can add to your .git/hooks of any repo that you like.

Don't forget to add the executable permission to this file and have the following installed:

Minimal example: transcode from MP3 to WMA:
ffmpeg -i input.mp3 output.wma

You can get the list of supported formats with:
ffmpeg -formats

You can get the list of installed codecs with:

Make sure everything is up to date in the App Store

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

	require 'rubygems'
	require 'faraday'
	require 'socksify'
	require 'socksify/http'
	require 'awesome_print'

	# This is a SOCKS monkey patch for Faraday, with example use/unit test.
	# Notes:
	# * It is altered to work with SOCKS5 authentication.
	# * net_http_class must return a Faraday::Adapter::NetHttp instance.

	# Enables PostgreSQL interval datatype support (as ActiveSupport::Duration) in Ruby on Rails 4.1.
	# Based on https://gist.github.com/clarkdave/6529610

	require 'active_support/duration'

	# add a native DB type of :interval
	ActiveRecord::ConnectionAdapters::PostgreSQLAdapter::NATIVE_DATABASE_TYPES[:interval] = { name: 'interval' }

	# add the interval type to the simplified_type list. because this method is a case statement
	# we can't inject anything into it, so we create an alias around it so calls to it will call

	=begin

	Include in your rspec config like so:

	RSpec.configure do \|spec\|
	spec.include RSpec::RedisHelper, redis: true
	end

	This helper will clean redis around each example.
	=end

	#first seen here: http://www.snip2code.com/Snippet/63701/Ansible-task-to-install-nvm-and-node
	# Here is how to install nvm and node in an Ansible task.
	# I tried a bunch of different things, and as usual it's simple, but you have to get it right.
	# The important part is that you have to shell with /bin/bash -c and source nvm.sh
	---
	- name: Install nvm
	shell: >
	curl https://raw.githubusercontent.com/creationix/nvm/v0.7.0/install.sh \| sh
	creates=/home/{{ ansible_user_id }}/.nvm/nvm.sh

	[1] (pry) main: 0> add = -> (a, b) { a + b }
	=> #<Proc:0x007ffde11d72c0@(pry):1 (lambda)>

	# Call proc with two arguments
	[2] (pry) main: 0> add.(1, 2)
	=> 3

	# Call proc with one argument
	[3] (pry) main: 0> add.(1)
	ArgumentError: wrong number of arguments (1 for 2)

	#creating an input array with size = 12 and rang of values = 15
	input = []
	array_size = 12
	range = 15
	(0...array_size).each {input.push(rand(0..range))}

	#the count_sort function does not modify the input array
	#the complexity is O(n+k), n is the input array size, k is the input array range; this creates needs two additional arrays n and k-size
	def count_sort (arr, range)
	count_arr = Array.new(range+1, 0)