theharq

if ENV["APPSIGNAL_PUSH_API_KEY"]
  require "rake/task"

  module Appsignal
    module Integrations
      module CustomRakeIntegration
        EXCLUDED_RAKE_TASKS = [
          "timezone_environment",
          "assets:clean",
          "assets:precompile",

theharq

# Useful when dealing with screenshots taken by Selenium

def selenium_driver
  @_selenium_driver ||= begin
    options = Selenium::WebDriver::Chrome::Options.new
    options.add_argument('--headless')
    options.add_argument('--no-sandbox')
    options.add_argument('--disable-dev-shm-usage')
    Selenium::WebDriver.for :chrome, options: options
  end

theharq

## The base branch in this case is called `develop`

SimpleCov.start 'rails' do
  add_group 'Policies', 'app/policies'
  add_group 'Serializers', 'app/serializers'
  add_group 'Services', 'app/services'
  add_group 'This Branch' do |source_file|
    `git diff --name-only develop`.split("\n").detect do |filename|
      source_file.filename.ends_with?(filename)
    end

theharq

curl -XPUT localhost:9201/_template/haraka_results -d '
{
    "template" : "smtp-transaction-*",
    "mappings" : {
        "haraka" : {
            "dynamic_templates" : [
                { "fail_results" : {
                        "match" : "fail",
                        "mapping" : {
                            "type" : "string", "index" : "not_analyzed"

theharq

# http://www.jkfill.com/2015/02/14/log-which-line-caused-a-query/
module LogQuerySource
  def debug(*args, &block)
    return unless super

    backtrace = Rails.backtrace_cleaner.clean caller

    relevant_caller_line = backtrace.detect do |caller_line|
      !caller_line.include?('/initializers/')
    end

theharq

ping www.google.com | while read pong; do echo "$(date): $pong"; done

theharq

SELECT *
FROM "measures"
INNER JOIN
  (SELECT *
   FROM
     (SELECT *
      FROM
        (SELECT "measures".*,
                (CASE WHEN ("measures"."validity_start_date" IS NULL) THEN base_regulations.validity_start_date ELSE measures.validity_start_date END) AS "effective_start_date",
                (CASE WHEN ("measures"."validity_end_date" IS NULL) THEN base_regulations.effective_end_date ELSE measures.validity_end_date END) AS "effective_end_date"

theharq

gem "ruby-prof"

theharq

Benchmark.ips do |x|
  x.config(time: 5, warmup: 5)

  x.report("Option 1") do
    "quota_order_number_origin_exclusions".classify
  end
  x.report("Option 2") do
   "quota_order_number_origin_exclusions".gsub(/(^|_)(.)/) { $2.upcase }.gsub(/s$/, '')
  end
  

theharq

# Ruby Optimizations

# Comparison:
#           Array#[-1]:  8053888.8 i/s
#           Array#last:  7388678.2 i/s - 1.09x slower
# Comparison:
#         Array#length: 11394036.7 i/s
#           Array#size: 11302701.1 i/s - 1.01x slower
#          Array#count:  9194976.2 i/s - 1.24x slower
# Comparison: