Class: Dply::Lock

Inherits:

Object

• Object
• Dply::Lock

Includes:

Helper

Defined in:

lib/dply/lock.rb

Instance Method Summary

• #acquire ⇒ Object
• #initialize(dir) ⇒ Lock constructor

  A new instance of Lock.

• #lock_file ⇒ Object

Methods included from Helper

#cmd, #error, #git, #logger, #sh, #symlink

Constructor Details

#initialize(dir) ⇒ Lock

# File 'lib/dply/lock.rb', line 7

def initialize(dir)
  @dir = dir
end

Instance Method Details

#acquire ⇒ Object

# File 'lib/dply/lock.rb', line 11

def acquire
  logger.debug "acquiring lock"
  lock_acquired = lock_file.flock(File::LOCK_NB | File::LOCK_EX)
  error "exclusive lock not available" if not lock_acquired
end

#lock_file ⇒ Object

# File 'lib/dply/lock.rb', line 17

def lock_file
  @lock_file ||= File.open("#{@dir}/.dply.lock", "a+")
end