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#  in the Software without restriction, including without limitation the rights
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#  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
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#  OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
#  THE SOFTWARE.

SOURCE_ROOT = File.expand_path("../..", File.dirname(__FILE__))
Dir.chdir(SOURCE_ROOT)
$LOAD_PATH.unshift("#{SOURCE_ROOT}/src/ruby_supportlib")
require 'phusion_passenger'
PhusionPassenger.locate_directories
PhusionPassenger.require_passenger_lib 'packaging'
require 'rubygems'
require 'tmpdir'
require 'fileutils'
require 'yaml'

PACKAGE_NAME = PhusionPassenger::PACKAGE_NAME
VERSION      = PhusionPassenger::VERSION_STRING
if RUBY_PLATFORM =~ /linux/
  TAR = "tar --warning=none"
else
  TAR = "tar"
end

def sh(*command)
  if !system(*command)
    abort "Command failed: #{command.join(' ')}"
  end
end

RSpec.shared_examples_for "a proper package" do
  it "includes all files in the git repository" do
    expected_files = `git ls-files`.split("\n")
    `git submodule status`.split("\n").each do |line|
      submodule_dir = line.strip.split(' ')[1]
      submodule_files = `cd #{submodule_dir} && git ls-files`.split("\n")
      submodule_files.map! { |path| "#{submodule_dir}/#{path}" }
      expected_files.delete(submodule_dir)
      expected_files.concat(submodule_files)
    end
    expected_files -= Dir.glob(PhusionPassenger::Packaging::EXCLUDE_GLOB, File::FNM_DOTMATCH)

    package_files = {}
    Dir.chdir(@pkg_contents_dir) do
      `find .`.split("\n").each do |filename|
        filename.sub!(/^.\//, '')
        if !File.directory?(filename)
          package_files[filename] = true
        end
      end
    end

    error = false
    expected_files.each do |filename|
      if !package_files[filename]
        error = true
        puts "File \"#{filename}\" is not in the package"
      end
    end
    raise "Some files are not in the package" if error
  end
end

RSpec.shared_examples_for "a user-generated package" do
  it "isn't marked official" do
    File.exist?("#{@pkg_contents_dir}/resources/release.txt").should be_falsey
  end
end

RSpec.shared_examples_for "an official package" do
  it "is marked official" do
    File.exist?("#{@pkg_contents_dir}/resources/release.txt").should be_truthy
  end
end

describe "A user-generated gem" do
  before :all do
    ENV['PKG_DIR'] = @temp_dir = Dir.mktmpdir
    basename = "#{PACKAGE_NAME}-#{VERSION}"
    @pkg_contents_dir = "#{@temp_dir}/#{basename}"
    Dir.chdir(SOURCE_ROOT) do
      sh "rake", *PhusionPassenger::Packaging::PREGENERATED_FILES
      sh "gem build #{PACKAGE_NAME}.gemspec"
      sh "mv #{PACKAGE_NAME}-#{VERSION}.gem #{@temp_dir}/"
    end
    Dir.chdir(@temp_dir) do
      sh "#{TAR} -xf #{basename}.gem"
      sh "mkdir #{basename}"
      sh "gunzip metadata.gz"
      Dir.chdir(basename) do
        sh "#{TAR} -xzf ../data.tar.gz"
      end
    end
  end

  after :all do
    ENV.delete('PKG_DIR')
    FileUtils.remove_entry_secure(@temp_dir)
  end

  include_examples "a proper package"
  include_examples "a user-generated package"

  it "doesn't invoke the binaries downloader upon gem installation" do
    spec = YAML.load_file("#{@temp_dir}/metadata")
    spec.extensions.should be_empty
  end
end

describe "A user-generated tarball" do
  before :all do
    ENV['PKG_DIR'] = @temp_dir = Dir.mktmpdir
    basename = "#{PACKAGE_NAME}-#{VERSION}"
    @pkg_contents_dir = "#{@temp_dir}/#{basename}"
    sh "rake package:tarball"
    Dir.chdir(@temp_dir) do
      sh "#{TAR} -xzf #{basename}.tar.gz"
    end
  end

  after :all do
    ENV.delete('PKG_DIR')
    FileUtils.remove_entry_secure(@temp_dir)
  end

  include_examples "a proper package"
  include_examples "a user-generated package"
end

describe "An officially-generated gem" do
  before :all do
    ENV['PKG_DIR'] = @temp_dir = Dir.mktmpdir
    basename = "#{PACKAGE_NAME}-#{VERSION}"
    @pkg_contents_dir = "#{@temp_dir}/#{basename}"
    Dir.chdir(SOURCE_ROOT) do
      sh "rake package:set_official package:gem SKIP_SIGNING=1"
    end
    Dir.chdir(@temp_dir) do
      sh "#{TAR} -xf #{basename}.gem"
      sh "mkdir #{basename}"
      sh "gunzip metadata.gz"
      Dir.chdir(basename) do
        sh "#{TAR} -xzf ../data.tar.gz"
      end
    end
  end

  after :all do
    ENV.delete('PKG_DIR')
    FileUtils.remove_entry_secure(@temp_dir)
  end

  include_examples "a proper package"
  include_examples "an official package"

  it "invokes the binaries downloader upon gem installation" do
    spec = YAML.load_file("#{@temp_dir}/metadata")
    spec.extensions.should_not be_empty
  end
end

describe "An officially-generated tarball" do
  before :all do
    ENV['PKG_DIR'] = @temp_dir = Dir.mktmpdir
    basename = "#{PACKAGE_NAME}-#{VERSION}"
    @pkg_contents_dir = "#{@temp_dir}/#{basename}"
    sh "rake package:set_official package:tarball"
    Dir.chdir(@temp_dir) do
      sh "#{TAR} -xzf #{basename}.tar.gz"
    end
  end

  after :all do
    ENV.delete('PKG_DIR')
    FileUtils.remove_entry_secure(@temp_dir)
  end

  include_examples "a proper package"
  include_examples "an official package"
end