am-kantox

defmodule Validator do
  def instance!(rules, merge \\ true) do
    mod = Module.concat(["Validator", "Instance"])

    current_rules =
      if Code.ensure_compiled?(mod) do
        rules = if merge, do: apply(mod, :rules, []), else: %{}
        :code.purge(mod)
        :code.delete(mod)
        rules

am-kantox

# === EDITOR ===
Pry.editor = 'vi'

# === PROMPT ===
  #   Pry::Prompt.add(
  #     :ipython,
  #     'IPython-like prompt', [':', '...:']
  #   ) do |_context, _nesting, pry_instance, sep|
  #     sep == ':' ? "In [#{pry_instance.input_ring.count}]: " : '   ...: '
  #   end

am-kantox

defmodule DryStructMatch do
  defmacrop clause!(name, mod, fun) do
    quote bind_quoted: [name: name, mod: mod, fun: fun] do
      quote do
        def unquote(name)(
              unquote({:%, [], [{:__aliases__, [alias: false], [mod]}, {:%{}, [], []}]}) = struct
            ) do
          # |> ...
          result = struct
          unquote(:"#{name}_callback")(unquote(fun), result)

am-kantox

{
/*
	// Place your snippets for Elixir here.
*/
	"GenServer": {
		"prefix": "genserver",
		"body": [
			"defmodule $1 do",
			"@moduledoc \"\"\"",
			"  The `$1` server implementation",

am-kantox

## Given a file, containing 1_000_000 lines, remove all duplicates, save for lines, starting with `#`

require 'digest/sha1' # to generate uniqs

FILE_NAME = 'input.txt'
File.readlines(FILE_NAME).each_with_index.uniq do |s, idx|
    s.start_with?('#') ? Digest::SHA1.hexdigest(idx.to_s) : s
end.join("\n")

am-kantox

wget https://github.com/rabbitmq/erlang-rpm/releases/download/v19.3.6.2/erlang-19.3.6.2-1.el6.x86_64.rpm
sudo rpm -Uvh erlang-19.3.6.2-1.el6.x86_64.rpm

rpm --import https://www.rabbitmq.com/rabbitmq-signing-key-public.asc
wget https://www.rabbitmq.com/releases/rabbitmq-server/v3.6.10/rabbitmq-server-3.6.10-1.el6.noarch.rpm
rpm -Uvh rabbitmq-server-3.6.10-1.el6.noarch.rpm
chkconfig rabbitmq-server on
/sbin/service rabbitmq-server start
rabbitmqctl status
rabbitmq-plugins enable rabbitmq_management

am-kantox

Here we assume we have a dedicated user myuser created.

The application is supposed to be in /vol/release/$USER

Preparation

Editor

$ sudo update-alternatives --config editor

choose whatever you want

am-kantox

def a1
  :normal
ensure
  :ensure
end

def a2
  return :normal
ensure
  return :ensure

am-kantox

defmodule Eventory.Helpers.Log do
  @moduledoc false

  Enum.each(~w|error info warn debug|a, fn level ->
    Module.register_attribute(__MODULE__, :level, persist: false)
    Module.put_attribute(__MODULE__, :level, level)
    defmacro unquote(Module.get_attribute(__MODULE__, :level))(chardata_or_fun, metadata \\ []) do
      {{:., [], [
          {:__aliases__, [alias: false], [:Logger]},
          unquote(Module.get_attribute(__MODULE__, :level))]},

am-kantox

require 'benchmark/ips'

n = 500000

require 'digest/md5'
require 'digest/sha1'
require 'digest/sha2'
require 'digest/sha3' # https://github.com/phusion/digest-sha3-ruby

INPUT = [5, "Hello, world", nil]