Class: Capistrano::DeployLocker::Provider

Inherits:
Object
  • Object
show all
Defined in:
lib/capistrano/deploy_locker/provider.rb

Instance Method Summary collapse

Constructor Details

#initialize(config = Capistrano::DeployLocker.config) ⇒ Provider

Returns a new instance of Provider.



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# File 'lib/capistrano/deploy_locker/provider.rb', line 4

def initialize(config = Capistrano::DeployLocker.config)
  @config = config
  FileUtils.mkpath(config.lock_dir)
end

Instance Method Details

#clear ⇒ Object 



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# File 'lib/capistrano/deploy_locker/provider.rb', line 32

def clear
  @lock_file.flock(File::LOCK_UN | File::LOCK_NB)
  @lock_file.close
end

#create ⇒ Object 



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# File 'lib/capistrano/deploy_locker/provider.rb', line 17

def create
  @lock_file = File.open(lock_file, File::RDWR | File::CREAT, 0o0644)
  unless @lock_file.flock(File::LOCK_EX | File::LOCK_NB)
    @lock_file.close
    message = "#{lock_file} is already locked!\n"
    if i = info
      message << "Info: #{i}"
    else
      message << 'No additional info available.'
    end
    raise Capistrano::DeployLocker::AlreadyLocked, message
  end
  update_info
end

#info ⇒ Object 



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# File 'lib/capistrano/deploy_locker/provider.rb', line 37

def info
  return unless File.readable?(info_file)
  JSON.parse(File.read(info_file))
end

#locked? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/capistrano/deploy_locker/provider.rb', line 9

def locked?
  locked = false
  File.open(lock_file, File::RDWR | File::CREAT, 0o0644) do |f|
    locked = true unless f.flock(File::LOCK_EX | File::LOCK_NB)
  end
  locked
end

#update_info ⇒ Object 



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# File 'lib/capistrano/deploy_locker/provider.rb', line 42

def update_info
  content = {
    user: @config.who,
    reason: @config.why,
    date: Time.now,
  }.to_json
  File.write(info_file, "#{content}\n")
end