Make specs run faster

  $ rspec spec/paperclip/integration_spec.rb --profile 1
  Testing against version 4.1.7
  ..................................

  Finished in 15.19 seconds (files took 0.60155 seconds to load)
  34 examples, 0 failures

  Top 1 slowest examples (9.54 seconds, 62.8% of total time):
    Paperclip Many models at once does not exceed the open file limit
      9.54 seconds ./spec/paperclip/integration_spec.rb:18

to

  $ rspec spec/paperclip/integration_spec.rb --profile 1
  Testing against version 4.1.7
  ..................................

  Finished in 10.95 seconds (files took 0.59585 seconds to load)
  34 examples, 0 failures

  Top 1 slowest examples (5.33 seconds, 48.7% of total time):
    Paperclip Many models at once does not exceed the open file limit
      5.33 seconds ./spec/paperclip/integration_spec.rb:18

Updates gemfiles to Ruby 2 hash syntax.

[closes thoughtbot#1700]

Gemfile

@@ -8,6 +8,7 @@ gem 'pry'
 # Hinting at development dependencies
 # Prevents bundler from taking a long-time to resolve
 group :development, :test do
+  gem 'activerecord-import'
   gem 'mime-types', '~> 1.16'
   gem 'builder'
   gem 'rubocop', require: false

gemfiles/3.2.awsv1.gemfile

@@ -2,15 +2,16 @@
 
 source "https://rubygems.org"
 
-gem "sqlite3", "~> 1.3.8", :platforms => :ruby
+gem "sqlite3", "~> 1.3.8", platforms: :ruby
 gem "pry"
 gem "rails", "~> 3.2.0"
 gem "aws-sdk", "~> 1.5"
 
 group :development, :test do
+  gem "activerecord-import"
   gem "mime-types", "~> 1.16"
   gem "builder"
   gem "rubocop", :require => false
 end
 
-gemspec :path => "../"
+gemspec path: "../"

gemfiles/3.2.awsv2.0.gemfile

@@ -2,15 +2,16 @@
 
 source "https://rubygems.org"
 
-gem "sqlite3", "~> 1.3.8", :platforms => :ruby
+gem "sqlite3", "~> 1.3.8", platforms: :ruby
 gem "pry"
 gem "rails", "~> 3.2.0"
 gem "aws-sdk", "~> 2.0.0"
 
 group :development, :test do
+  gem "activerecord-import"
   gem "mime-types", "~> 1.16"
   gem "builder"
   gem "rubocop", :require => false
 end
 
-gemspec :path => "../"
+gemspec path: "../"

gemfiles/3.2.awsv2.1.gemfile

@@ -2,15 +2,16 @@
 
 source "https://rubygems.org"
 
-gem "sqlite3", "~> 1.3.8", :platforms => :ruby
+gem "sqlite3", "~> 1.3.8", platforms: :ruby
 gem "pry"
 gem "rails", "~> 3.2.0"
 gem "aws-sdk", "~> 2.1.0"
 
 group :development, :test do
+  gem "activerecord-import"
   gem "mime-types", "~> 1.16"
   gem "builder"
   gem "rubocop", :require => false
 end
 
-gemspec :path => "../"
+gemspec path: "../"

gemfiles/4.1.awsv1.gemfile

@@ -2,15 +2,16 @@
 
 source "https://rubygems.org"
 
-gem "sqlite3", "~> 1.3.8", :platforms => :ruby
+gem "sqlite3", "~> 1.3.8", platforms: :ruby
 gem "pry"
 gem "rails", "~> 4.1.0"
 gem "aws-sdk", "~> 1.5"
 
 group :development, :test do
+  gem "activerecord-import"
   gem "mime-types", "~> 1.16"
   gem "builder"
   gem "rubocop", :require => false
 end
 
-gemspec :path => "../"
+gemspec path: "../"

gemfiles/4.1.awsv2.0.gemfile

@@ -2,15 +2,16 @@
 
 source "https://rubygems.org"
 
-gem "sqlite3", "~> 1.3.8", :platforms => :ruby
+gem "sqlite3", "~> 1.3.8", platforms: :ruby
 gem "pry"
 gem "rails", "~> 4.1.0"
 gem "aws-sdk", "~> 2.0.0"
 
 group :development, :test do
+  gem "activerecord-import"
   gem "mime-types", "~> 1.16"
   gem "builder"
   gem "rubocop", :require => false
 end
 
-gemspec :path => "../"
+gemspec path: "../"

gemfiles/4.1.awsv2.1.gemfile

@@ -2,15 +2,16 @@
 
 source "https://rubygems.org"
 
-gem "sqlite3", "~> 1.3.8", :platforms => :ruby
+gem "sqlite3", "~> 1.3.8", platforms: :ruby
 gem "pry"
 gem "rails", "~> 4.1.0"
 gem "aws-sdk", "~> 2.1.0"
 
 group :development, :test do
+  gem "activerecord-import"
   gem "mime-types", "~> 1.16"
   gem "builder"
   gem "rubocop", :require => false
 end
 
-gemspec :path => "../"
+gemspec path: "../"

gemfiles/4.2.awsv1.gemfile

@@ -2,15 +2,16 @@
 
 source "https://rubygems.org"
 
-gem "sqlite3", "~> 1.3.8", :platforms => :ruby
+gem "sqlite3", "~> 1.3.8", platforms: :ruby
 gem "pry"
 gem "rails", "~> 4.2.0"
 gem "aws-sdk", "~> 1.5"
 
 group :development, :test do
+  gem "activerecord-import"
   gem "mime-types", "~> 1.16"
   gem "builder"
   gem "rubocop", :require => false
 end
 
-gemspec :path => "../"
+gemspec path: "../"

gemfiles/4.2.awsv2.0.gemfile

@@ -2,15 +2,16 @@
 
 source "https://rubygems.org"
 
-gem "sqlite3", "~> 1.3.8", :platforms => :ruby
+gem "sqlite3", "~> 1.3.8", platforms: :ruby
 gem "pry"
 gem "rails", "~> 4.2.0"
 gem "aws-sdk", "~> 2.0.0"
 
 group :development, :test do
+  gem "activerecord-import"
   gem "mime-types", "~> 1.16"
   gem "builder"
   gem "rubocop", :require => false
 end
 
-gemspec :path => "../"
+gemspec path: "../"

gemfiles/4.2.awsv2.1.gemfile

@@ -2,15 +2,16 @@
 
 source "https://rubygems.org"
 
-gem "sqlite3", "~> 1.3.8", :platforms => :ruby
+gem "sqlite3", "~> 1.3.8", platforms: :ruby
 gem "pry"
 gem "rails", "~> 4.2.0"
 gem "aws-sdk", "~> 2.1.0"
 
 group :development, :test do
+  gem "activerecord-import"
   gem "mime-types", "~> 1.16"
   gem "builder"
   gem "rubocop", :require => false
 end
 
-gemspec :path => "../"
+gemspec path: "../"

spec/paperclip/integration_spec.rb

@@ -7,9 +7,10 @@
     before do
       rebuild_model
       @file = File.new(fixture_file("5k.png"), 'rb')
-      300.times do |i|
-        Dummy.create! avatar: @file
-      end
+      # Deals with `Too many open files` error
+      Dummy.import 100.times.map { Dummy.new avatar: @file }
+      Dummy.import 100.times.map { Dummy.new avatar: @file }
+      Dummy.import 100.times.map { Dummy.new avatar: @file }
     end
 
     after { @file.close }

spec/spec_helper.rb

@@ -8,6 +8,7 @@
 require 'bourne'
 require 'ostruct'
 require 'pathname'
+require 'activerecord-import'
 
 ROOT = Pathname(File.expand_path(File.join(File.dirname(__FILE__), '..')))