Category Archives: Ruby

Prevent ActionMailer from sending to deleted users / blacklisted addresses

No need to check in normal code, just do everything as usual and this interceptor will prevent you from spamming people who do not want any emails.
Its not perfect(missing bc/bcc filters but if should be fine for 90% of cases)

#config/initializers/blacklisted_emails.rb
class MailInterceptor
  def self.delivering_email(message)
    if User.where(:email => message.to, :receive_emails => false).any?
      message.perform_deliveries = false
    end
  end
end

Mail.register_interceptor(MailInterceptor)

You dont need RSpec in :development

You can speed up development load time and get rid of rspec in development if you simply not require it in :development and just load the tasks in the Rakefile where they are needed.

# Gemfile
group :development, :test do
  gem 'rspec-rails', :require => false
end

# Rakefile
require File.expand_path('../config/application', __FILE__)
require 'rspec-rails' if ['test', 'development'].include?(Rails.env)
...

Repeat for any other testing lib for even more speedup 🙂

Running tests via spork directly from Rubymine

Very fast test execution from inside Rubymine.
Cmd+F8 + 2 seconds == test results 😀

1 Activate DRB in Rubymine
Run > Edit configurations > Defaults > RSpec > Use DRB Server

2 a) Start spork from Rubymine
Tools > Run Spork DRB Server

2 b) (alternatively) start spork from the commandline
Code

  # spec/spec_helper.rb
Spork.prefork do
  if ENV["RUBYMINE_HOME"]
    puts "Rubymine support"
    $:.unshift(File.expand_path("rb/testing/patch/common", ENV["RUBYMINE_HOME"]))
    $:.unshift(File.expand_path("rb/testing/patch/bdd", ENV["RUBYMINE_HOME"]))
  end
end

and run it via:

RUBYMINE_HOME=/Applications/Rubymine\ 3.2.4.app/ spork

Adding travis hook to new github project via the commandline

I got tired of clicking through the github menus, so after some toying around with the octopi github client (which does not work as expected…), I wrote this small script using pure rest-client.

Creates a new travis hook based on the travis info in your .gitconfig
and also triggers the initial test-run.

add to ~/.gitconfig

[travis]
  user = xxx
  token = yyy

download & run the Script
wget https://raw.github.com/grosser/dotfiles/master/bin/github-add-travis

./github-add-travis github-password project-name