Class: CapsuleCD::Chef::ChefEngine

Inherits:
Engine
  • Object
show all
Defined in:
lib/capsulecd/chef/chef_engine.rb

Instance Attribute Summary

Attributes inherited from Engine

#config

Instance Method Summary collapse

Methods inherited from Engine

#initialize, #post_build_step, #post_package_step, #post_release_step, #post_runner_retrieve_payload, #post_source_configure, #post_source_process_pull_request_payload, #post_source_process_push_payload, #post_source_release, #post_test_step, #pre_build_step, #pre_package_step, #pre_release_step, #pre_runner_retrieve_payload, #pre_source_configure, #pre_source_process_pull_request_payload, #pre_source_process_push_payload, #pre_source_release, #pre_test_step, #start

Constructor Details

This class inherits a constructor from CapsuleCD::Engine

Instance Method Details

#build_step ⇒ Object 



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# File 'lib/capsulecd/chef/chef_engine.rb', line 12

def build_step
  super
  # validate that the chef metadata.rb file exists

  unless File.exist?(@source_git_local_path + '/metadata.rb')
    fail CapsuleCD::Error::BuildPackageInvalid, 'metadata.rb file is required to process Chef cookbook'
  end

  # bump up the chef cookbook version
  metadata_str = CapsuleCD::Chef::ChefHelper.read_repo_metadata(@source_git_local_path)
  chef_metadata = CapsuleCD::Chef::ChefHelper.parse_metadata(metadata_str)
  next_version = bump_version(SemVer.parse(chef_metadata.version))

  new_metadata_str = metadata_str.gsub(/(version\s+['"])[0-9\.]+(['"])/, "\\1#{next_version}\\2")
  CapsuleCD::Chef::ChefHelper.write_repo_metadata(@source_git_local_path, new_metadata_str)

  # TODO: check if this cookbook name and version already exist.

  # check for/create any required missing folders/files
  # Berksfile.lock and Gemfile.lock are not required to be commited, but they should be.
  unless File.exist?(@source_git_local_path + '/Rakefile')
    File.open(@source_git_local_path + '/Rakefile', 'w') { |file| file.write('task :test') }
  end
  unless File.exist?(@source_git_local_path + '/Berksfile')
    File.open(@source_git_local_path + '/Berksfile', 'w') { |file| file.write('site :opscode') }
  end
  unless File.exist?(@source_git_local_path + '/Gemfile')
    File.open(@source_git_local_path + '/Gemfile', 'w') { |file| file.write('source "https://rubygems.org"') }
  end
  unless File.exist?(@source_git_local_path + '/spec')
    FileUtils.mkdir(@source_git_local_path + '/spec')
  end
  unless File.exist?(@source_git_local_path + '/.gitignore')
    CapsuleCD::GitUtils.create_gitignore(@source_git_local_path, ['ChefCookbook'])
  end
end

#package_step ⇒ Object 



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# File 'lib/capsulecd/chef/chef_engine.rb', line 104

def package_step
  super
  metadata_str = CapsuleCD::Chef::ChefHelper.read_repo_metadata(@source_git_local_path)
  chef_metadata = CapsuleCD::Chef::ChefHelper.parse_metadata(metadata_str)
  next_version = SemVer.parse(chef_metadata.version)
  # commit changes to the cookbook. (test run occurs before this, and it should clean up any instrumentation files, created,
  # as they will be included in the commmit and any release artifacts)
  CapsuleCD::GitUtils.commit(@source_git_local_path, "(v#{next_version}) Automated packaging of release by CapsuleCD")
  @source_release_commit = CapsuleCD::GitUtils.tag(@source_git_local_path, "v#{next_version}")
end

#release_step ⇒ Object

this step should push the release to the package repository (ie. npm, chef supermarket, rubygems)



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# File 'lib/capsulecd/chef/chef_engine.rb', line 116

def release_step
  super
  puts @source_git_parent_path
  pem_path = File.expand_path('~/client.pem')
  knife_path = File.expand_path('~/knife.rb')

  unless @config.chef_supermarket_username || @config.chef_supermarket_key
    fail CapsuleCD::Error::ReleaseCredentialsMissing, 'cannot deploy cookbook to supermarket, credentials missing'
  end

  # knife is really sensitive to folder names. The cookbook name MUST match the folder name otherwise knife throws up
  # when doing a knife cookbook share. So we're going to make a new tmp directory, create a subdirectory with the EXACT
  # cookbook name, and then copy the cookbook contents into it. Yeah yeah, its pretty nasty, but blame Chef.
  metadata_str = CapsuleCD::Chef::ChefHelper.read_repo_metadata(@source_git_local_path)
  chef_metadata = CapsuleCD::Chef::ChefHelper.parse_metadata(metadata_str)

  Dir.mktmpdir {|tmp_parent_path|
    # create cookbook folder
    tmp_local_path = File.join(tmp_parent_path, chef_metadata.name)
    FileUtils.mkdir_p(tmp_local_path)
    FileUtils.copy_entry(@source_git_local_path, tmp_local_path)

    # write the knife.rb config jfile.
    File.open(knife_path, 'w+') do |file|
      file.write(<<-EOT.gsub(/^\s+/, '')
      node_name "#{@config.chef_supermarket_username }" # Replace with the login name you use to login to the Supermarket.
      client_key "#{pem_path}" # Define the path to wherever your client.pem file lives.  This is the key you generated when you signed up for a Chef account.
      cookbook_path [ '#{tmp_parent_path}' ] # Directory where the cookbook you're uploading resides.
      EOT
      )
    end

    File.open(pem_path, 'w+') do |file|
      file.write(@config.chef_supermarket_key)
    end

    command = "knife cookbook site share #{chef_metadata.name} #{@config.chef_supermarket_type} -c #{knife_path}"
    Open3.popen3(command) do |_stdin, stdout, stderr, external|
      { stdout: stdout, stderr: stderr }. each do |name, stream_buffer|
        Thread.new do
          until (line = stream_buffer.gets).nil?
            puts "#{name} -> #{line}"
          end
        end
      end
      # wait for process
      external.join
      unless external.value.success?
        fail CapsuleCD::Error::ReleasePackageError, 'knife cookbook upload to supermarket failed'
      end
    end
  }
end

#test_step ⇒ Object 



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# File 'lib/capsulecd/chef/chef_engine.rb', line 49

def test_step
  super

  # the cookbook has already been downloaded. lets make sure all its dependencies are available.
  Open3.popen3('berks install', chdir: @source_git_local_path) do |_stdin, stdout, stderr, external|
    { stdout: stdout, stderr: stderr }. each do |name, stream_buffer|
      Thread.new do
        until (line = stream_buffer.gets).nil?
          puts "#{name} -> #{line}"
        end
      end
    end
    # wait for process
    external.join
    unless external.value.success?
      fail CapsuleCD::Error::TestDependenciesError, 'berks install failed. Check cookbook dependencies'
    end
  end

  # lets download all its gem dependencies
  Bundler.with_clean_env do
    Open3.popen3('bundle install', chdir: @source_git_local_path) do |_stdin, stdout, stderr, external|
      { stdout: stdout, stderr: stderr }. each do |name, stream_buffer|
        Thread.new do
          until (line = stream_buffer.gets).nil?
            puts "#{name} -> #{line}"
          end
        end
      end
      # wait for process
      external.join
      unless external.value.success?
        fail CapsuleCD::Error::TestDependenciesError, 'bundle install failed. Check gem dependencies'
      end
    end

    # run test command
    test_cmd = @config.engine_cmd_test || 'rake test'
    Open3.popen3(test_cmd, chdir: @source_git_local_path) do |_stdin, stdout, stderr, external|
      { stdout: stdout, stderr: stderr }. each do |name, stream_buffer|
        Thread.new do
          until (line = stream_buffer.gets).nil?
            puts "#{name} -> #{line}"
          end
        end
      end
      # wait for process
      external.join
      unless external.value.success?
        fail CapsuleCD::Error::TestRunnerError, test_cmd + ' failed. Check log for exact error'
      end
    end unless @config.engine_disable_test
  end
end