11 files changed, 160 insertions, 0 deletions
diff --git a/Gemfile b/Gemfile
new file mode 100644
index 0000000000..9b78acc762
--- /dev/null
+++ b/Gemfile
@@ -0,0 +1,4 @@
+source "https://rubygems.org"
+git_source(:github) { |repo_path| "https://github.com/#{repo_path}.git" }
+
+gemspec
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000000..4a5fe6361d
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2018 Basecamp, LLC
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/README.md b/README.md
new file mode 100644
index 0000000000..b92e467644
--- /dev/null
+++ b/README.md
@@ -0,0 +1,3 @@
+# Action Mailbox
+
+📬
+\ No newline at end of file
diff --git a/Rakefile b/Rakefile
new file mode 100644
index 0000000000..a2fd477252
--- /dev/null
+++ b/Rakefile
@@ -0,0 +1,27 @@
+begin
+  require 'bundler/setup'
+rescue LoadError
+  puts 'You must `gem install bundler` and `bundle install` to run rake tasks'
+end
+
+require 'rdoc/task'
+
+RDoc::Task.new(:rdoc) do |rdoc|
+  rdoc.rdoc_dir = 'rdoc'
+  rdoc.title    = 'Action Mailbox'
+  rdoc.options << '--line-numbers'
+  rdoc.rdoc_files.include('README.md')
+  rdoc.rdoc_files.include('lib/**/*.rb')
+end
+
+require 'bundler/gem_tasks'
+
+require 'rake/testtask'
+
+Rake::TestTask.new(:test) do |t|
+  t.libs << 'test'
+  t.pattern = 'test/**/*_test.rb'
+  t.verbose = false
+end
+
+task default: :test
diff --git a/actionmailbox.gemspec b/actionmailbox.gemspec
new file mode 100644
index 0000000000..1fdfff7b00
--- /dev/null
+++ b/actionmailbox.gemspec
@@ -0,0 +1,24 @@
+$:.push File.expand_path("lib", __dir__)
+
+# Maintain your gem's version:
+require "action_mailbox/version"
+
+# Describe your gem and declare its dependencies:
+Gem::Specification.new do |s|
+  s.name     = "actionmailbox"
+  s.version  = ActionText::VERSION
+  s.authors  = ["Jeremy Daer", "David Heinemeier Hansson"]
+  s.email    = ["jeremy@basecamp.com", "david@loudthinking.com"]
+  s.summary  = "Receive and process incoming emails in Rails"
+  s.homepage = "https://github.com/basecamp/actionmailbox"
+  s.license  = "MIT"
+
+  s.required_ruby_version = ">= 2.5.0"
+
+  s.add_dependency "rails", ">= 5.2.0"
+
+  s.add_development_dependency "bundler", "~> 1.15"
+
+  s.files      = `git ls-files`.split("\n")
+  s.test_files = `git ls-files -- test/*`.split("\n")
+end
diff --git a/lib/action_mailbox.rb b/lib/action_mailbox.rb
new file mode 100644
index 0000000000..c4ed71d5cc
--- /dev/null
+++ b/lib/action_mailbox.rb
@@ -0,0 +1,7 @@
+require "action_mailbox/engine"
+
+module ActionMailbox
+  extend ActiveSupport::Autoload
+
+  autoload :Base
+end
diff --git a/lib/action_mailbox/base.rb b/lib/action_mailbox/base.rb
new file mode 100644
index 0000000000..75098875eb
--- /dev/null
+++ b/lib/action_mailbox/base.rb
@@ -0,0 +1,2 @@
+class ActionMailbox::Base
+end
diff --git a/lib/action_mailbox/engine.rb b/lib/action_mailbox/engine.rb
new file mode 100644
index 0000000000..92852a0fa3
--- /dev/null
+++ b/lib/action_mailbox/engine.rb
@@ -0,0 +1,14 @@
+require "rails/engine"
+
+module ActionMailbox
+  class Engine < Rails::Engine
+    isolate_namespace ActionMailbox
+    config.eager_load_namespaces << ActionMailbox
+
+    initializer "action_mailbox.config" do
+      config.after_initialize do |app|
+        # Configure
+      end
+    end
+  end
+end
diff --git a/lib/action_mailbox/version.rb b/lib/action_mailbox/version.rb
new file mode 100644
index 0000000000..23c615dbbd
--- /dev/null
+++ b/lib/action_mailbox/version.rb
@@ -0,0 +1,3 @@
+module ActionMailbox
+  VERSION = '0.1.0'
+end
diff --git a/lib/tasks/action_mailbox.rake b/lib/tasks/action_mailbox.rake
new file mode 100644
index 0000000000..58dd59d9eb
--- /dev/null
+++ b/lib/tasks/action_mailbox.rake
@@ -0,0 +1,30 @@
+# frozen_string_literal: true
+
+namespace :action_mailbox do
+  # Prevent migration installation task from showing up twice.
+  Rake::Task["install:migrations"].clear_comments
+
+  desc "Copy over the migration and fixtures"
+  task install: %w( environment active_storage:install copy_migration copy_fixtures )
+
+  task :copy_migration do
+    if Rake::Task.task_defined?("action_mailbox:install:migrations")
+      Rake::Task["action_mailbox:install:migrations"].invoke
+    else
+      Rake::Task["app:action_mailbox:install:migrations"].invoke
+    end
+  end
+
+  FIXTURE_TEMPLATE_PATH = File.expand_path("../templates/fixtures.yml", __dir__)
+  FIXTURE_APP_DIR_PATH  = Rails.root.join("test/fixtures/action_mailbox")
+  FIXTURE_APP_PATH      = FIXTURE_APP_DIR_PATH.join("inbound_emails.yml")
+
+  task :copy_fixtures do
+    if File.exist?(FIXTURE_APP_PATH)
+      puts "Won't copy Action Mailbox fixtures as it already exists"
+    else
+      FileUtils.mkdir FIXTURE_APP_DIR_PATH
+      FileUtils.cp FIXTURE_TEMPLATE_PATH, FIXTURE_APP_PATH
+    end
+  end
+end
diff --git a/test/test_helper.rb b/test/test_helper.rb
new file mode 100644
index 0000000000..81d14de111
--- /dev/null
+++ b/test/test_helper.rb
@@ -0,0 +1,25 @@
+# Configure Rails Environment
+ENV["RAILS_ENV"] = "test"
+
+require_relative "../test/dummy/config/environment"
+ActiveRecord::Migrator.migrations_paths = [File.expand_path("../test/dummy/db/migrate", __dir__)]
+require "rails/test_help"
+
+require "rails/test_unit/reporter"
+Rails::TestUnitReporter.executable = 'bin/test'
+
+# Load fixtures from the engine
+if ActiveSupport::TestCase.respond_to?(:fixture_path=)
+  ActiveSupport::TestCase.fixture_path = File.expand_path("fixtures", __dir__)
+  ActionDispatch::IntegrationTest.fixture_path = ActiveSupport::TestCase.fixture_path
+  ActiveSupport::TestCase.file_fixture_path = ActiveSupport::TestCase.fixture_path + "/files"
+  ActiveSupport::TestCase.fixtures :all
+end
+
+class ActiveSupport::TestCase
+  private
+    def create_file_blob(filename:, content_type:, metadata: nil)
+      ActiveStorage::Blob.create_after_upload! io: file_fixture(filename).open, 
+      filename: filename, content_type: content_type, metadata: metadata
+    end
+end