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The ConnectionAdapter defines two callbacks :checkout (connect) and :checkin (disconnect).

ActiveRecord::ConnectionAdapters::PostgreSQLAdapter.set_callback :checkout, :after do
  raw_connection
end

Source.

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# add this into application.rb
initializer_file = Rails.root.join('config', 'initializers', 'my_initializer.rb')
reloader = ActiveSupport::FileUpdateChecker.new([initializer_file]) do
  load initializer_file
end
ActiveSupport::Reloader.to_prepare do
  reloader.execute
end

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# add AWS credentials to ENV variables or modify the script to pass in credentials
require 'thread'
require 'aws-sdk'

# settings
region   = 'my-region'
bucket   = 'my-bucket'
prefix   = 'my-prefix'
acl      = "private"
parallel = 25

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{
	"ensure_newline_at_eof_on_save": true,
	"font_size": 12.0,
	"trim_trailing_white_space_on_save": true
}

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require 'net/http'
require 'json'

class Client

  def call(method, url, path=nil, headers={}, body=nil, timeout=60)
    net_class = Object.const_get("Net::HTTP::#{constantize(method)}")

    uri = URI("#{url}#{path}")

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require 'find'

biggest_file_by_ext = {}
Find.find('.') do |path|
  next if File.directory?(path)
  # get file info
  ext  = File.extname(path)
  next unless ext.length > 0
  # get file size
  size = File.size(path)

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Program: /Users/roberto/workspace/intellij_run_cmd
Arguments: "mix test $FilePathRelativeToProjectRoot$:$SelectionEndLine$"

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# download erlang 19: <http://erlang.org/download/otp_src_19.3.tar.gz> & untar
# download patch: <https://github.com/erlang/otp/commit/a64c4d806fa54848c35632114585ad82b98712e8.diff>

# apply patch
patch < a64c4d806fa54848c35632114585ad82b98712e8.diff

# ensure that openssl is installed in openssl@1.1/{version}
brew install openssl

# compile

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RSA Private / Pubic key pair

To generate a private / public RSA key pair, you can either use openssl, like so:

$ openssl genrsa -out private.pem 4096  
$ openssl rsa -in private.pem -outform PEM -pubout -out public.pem  

Or, you can use the following python script:

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-module(list_bench).

-compile([export_all]).

main(Count) ->
    Values = lists:foldl(fun(C, Acc) ->
        [C, C, C, C, C, C, C, C, C, C | Acc]
    end, [], lists:seq(1, Count)),

    {TimeDict0, ResultDict} = timer:tc(?MODULE, count_dict, [Values]),