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If both the upstream and your feature branch have made changes to Gemfile, you will likely receive merge conflicts on Gemfile.lock when you rebase your feature branch. Don't try to resolve these manually; you'll probably just screw it up. Instead do this:

git checkout --ours Gemfile.lock
bundle
git add Gemfile.lock
git rebase --continue

This ensures that you get a correct Gemfile.lock at each step along the way.

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Here is how to have your bash prompt tell you if you have changed or untracked files in your working directory.

Add these lines to ~/.bash_profile:

source /usr/local/etc/bash_completion
GIT_PS1_SHOWDIRTYSTATE=true
GIT_PS1_SHOWUNTRACKEDFILES=true
export PS1='\u@\h \w$(__git_ps1) \$ '

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module MyMixin
  def self.included(other)
    other.instance_eval do
      define_method :bar do
        puts 'bar called'
      end
    end
  end
end

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# download and unpack distribution
wget https://bitbucket.org/ariya/phantomjs/downloads/phantomjs-1.9.6-linux-x86_64.tar.bz2
tar xf phantomjs-1.9.6-linux-x86_64.tar.bz2

# copy binary
cd phantomjs-1.9.6-linux-x86_64
cp bin/phantomjs /usr/local/bin

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# provision a tinyproxy server on an Ubuntu or CentOS (7.1+) host

- hosts: proxies
  become: true

  roles:
    - geerlingguy.firewall

  vars:
    firewall_allowed_tcp_ports: [ 22, 8888 ]

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#!/usr/bin/env perl
#
# A solution to http://blogs.perl.org/users/ovid/2014/12/a-small-puzzle-for-you.html

use Modern::Perl;
use Data::Printer multiline => 0;

my @a = ( 'b', 'c', 'f' );
my @b = ( 'a', 'd' );
my @c = ( 'c', 'd', 'e' );

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# Matchers that will wait for a value to change.
# Tested with Ruby 2.3, RSpec 3.3

# Ex. expect { email.reload.delivered? }.to become_truthy
RSpec::Matchers.define :become_truthy do
  supports_block_expectations
  match do |block|
    begin
      Timeout.timeout(Capybara.default_max_wait_time) do
        sleep(0.1) until value = block.call

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# Install JDK

yum install java-1.6.0-openjdk-devel

# Install ActiveMQ

cd /package
wget http://www.carfab.com/apachesoftware/activemq/apache-activemq/5.6.0/apache-activemq-5.6.0-bin.tar.gz
cd /opt
tar xf /package/apache-activemq-5.6.0-bin.tar.gz

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  # BEFORE
  describe '#remove_existing_ife_documents' do
    it 'removes any existing documents on the item with the ife_id field set' do
      item.documents << FactoryGirl.create(:document, document_type: document_type)
      item.documents << FactoryGirl.create(:document, document_type: document_type, ife_id: '1234')
      expect(item.documents.count).to eql(2)
      ife_document_creator.send(:remove_existing_ife_documents)
      expect(item.documents.count).to eql(1)
    end

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# add to lib/tasks/notes.rb:

task :configure_annotations do
  Rails.application.configure do
    config.annotations.directories.concat %w(spec features)
    config.annotations.register_extensions('feature') { |tag| /#\s*(#{tag}):?\s*(.*)$/ }
  end
end

task :notes => :configure_annotations