Class: Revup::DeployTask

Inherits:
Rake::TaskLib
  • Object
show all
Defined in:
lib/revup/deploy_task.rb

Constant Summary collapse

DEFAULT_TO_CLASS_ATTRS = 
[:host, :user, :app_dir, :remote_setup, :files_root, :logger, :local_tmp_dir, :remote_tmp_dir]

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(task_name_and_prerequisites) {|_self| ... } ⇒ DeployTask

Returns a new instance of DeployTask.

Yields:

  • (_self)

Yield Parameters:



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# File 'lib/revup/deploy_task.rb', line 41

def initialize(task_name_and_prerequisites)
  DEFAULT_TO_CLASS_ATTRS.each do |attr|
    send("#{attr}=", self.class.send(attr))
  end

  @task_name_and_prerequisites = task_name_and_prerequisites
  @versioned_asset_name = task_name

  @revision ||= begin
    result = sh("git rev-parse --short HEAD 2>&1")
    result unless result.empty?
  end

  yield self if block_given?
  define
end

Instance Attribute Details

#app_dir ⇒ Object

Returns the value of attribute app_dir.



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# File 'lib/revup/deploy_task.rb', line 31

def app_dir
  @app_dir
end

#files ⇒ Object

Returns the value of attribute files.



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# File 'lib/revup/deploy_task.rb', line 25

def files
  @files
end

#files_root ⇒ Object

Returns the value of attribute files_root.



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# File 'lib/revup/deploy_task.rb', line 25

def files_root
  @files_root
end

#host ⇒ Object

Returns the value of attribute host.



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# File 'lib/revup/deploy_task.rb', line 27

def host
  @host
end

#local_tmp_dir ⇒ Object

Returns the value of attribute local_tmp_dir.



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# File 'lib/revup/deploy_task.rb', line 35

def local_tmp_dir
  @local_tmp_dir
end

#logger ⇒ Object

Returns the value of attribute logger.



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# File 'lib/revup/deploy_task.rb', line 39

def logger
  @logger
end

#remote_setup ⇒ Object

Returns the value of attribute remote_setup.



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# File 'lib/revup/deploy_task.rb', line 37

def remote_setup
  @remote_setup
end

#remote_tmp_dir ⇒ Object

Returns the value of attribute remote_tmp_dir.



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# File 'lib/revup/deploy_task.rb', line 35

def remote_tmp_dir
  @remote_tmp_dir
end

#revision ⇒ Object

Returns the value of attribute revision.



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# File 'lib/revup/deploy_task.rb', line 33

def revision
  @revision
end

#task_name_and_prerequisites ⇒ Object

Returns the value of attribute task_name_and_prerequisites.



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# File 'lib/revup/deploy_task.rb', line 23

def task_name_and_prerequisites
  @task_name_and_prerequisites
end

#user ⇒ Object

Returns the value of attribute user.



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# File 'lib/revup/deploy_task.rb', line 29

def user
  @user
end

#versioned_asset_name ⇒ Object

Returns the value of attribute versioned_asset_name.



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# File 'lib/revup/deploy_task.rb', line 21

def versioned_asset_name
  @versioned_asset_name
end

Instance Method Details

#archive_basename ⇒ Object 



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# File 'lib/revup/deploy_task.rb', line 58

def archive_basename
  "#{versioned_asset_name}-#{revision}"
end

#cleanup! ⇒ Object 



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# File 'lib/revup/deploy_task.rb', line 122

def cleanup!
  sh  "rm -f '#{local_archive_path}'"
  ssh "rm -f '#{remote_archive_path}'"
  ssh "rm -rf '#{remote_archive_dir}'"
end

#create_archive ⇒ Object 



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# File 'lib/revup/deploy_task.rb', line 99

def create_archive
  sh "mkdir -p '#{local_tmp_dir}'"
  sh "tar -C '#{files_root}' -zcf '#{local_archive_path}' '#{files.sort.join("' '")}'"
end

#define ⇒ Object

Actual task definition



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# File 'lib/revup/deploy_task.rb', line 76

def define
  task(task_name_and_prerequisites) do
    deploy
  end
  Rake::Task[task_name].add_description("Deploy build of the `#{versioned_asset_name}' versioned_asset")
end

#deploy ⇒ Object 



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# File 'lib/revup/deploy_task.rb', line 83

def deploy
  validate files_root, "Please specify the location of the root of the files that should be deployed."
  validate files,      "Please specify a list of files that should be deployed."
  validate host,       "Please specify the host of the machine to deploy to."
  validate user,       "Please specify the user of the machine to deploy to."
  validate app_dir,    "Please specify the path to the application."
  validate revision,   "Please specify the Git revision hash."

  create_archive
  upload_and_register

rescue Object => e
  logger.error("#{e.message}\n\t#{e.backtrace.join("\n\t")}")
  raise e
end

#local_archive_path ⇒ Object 



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# File 'lib/revup/deploy_task.rb', line 62

def local_archive_path
  File.join(local_tmp_dir, "#{archive_basename}.tgz")
end

#remote_archive_dir ⇒ Object 



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# File 'lib/revup/deploy_task.rb', line 70

def remote_archive_dir
  File.join(remote_tmp_dir, archive_basename)
end

#remote_archive_path ⇒ Object 



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# File 'lib/revup/deploy_task.rb', line 66

def remote_archive_path
  File.join(remote_tmp_dir, "#{archive_basename}.tgz")
end

#upload_and_register ⇒ Object 



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# File 'lib/revup/deploy_task.rb', line 104

def upload_and_register
  Net::SSH.start(host, user) do |connection|
    @ssh = connection

    ssh "mkdir -p '#{remote_archive_dir}'"
    # Upload archive
    logger.info("Transferring `#{local_archive_path}' to `#{host}:#{remote_archive_path}'")
    @ssh.scp.upload!(local_archive_path, remote_archive_path)
    # Unpack archive
    ssh "tar -C '#{remote_archive_dir}' -zxf '#{remote_archive_path}'"
    # Register revision
    ssh "cd '#{app_dir}' && /usr/local/rbenv/shims/bundle exec ./script/register_versioned_asset_revision '#{remote_archive_dir}' '#{versioned_asset_name}' '#{revision}'"

    cleanup!
  end
  @ssh = nil
end