Class: Spring::Env

Inherits:
Object
  • Object
show all
Defined in:
lib/spring/env.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(root = nil) ⇒ Env

Returns a new instance of Env.



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# File 'lib/spring/env.rb', line 17

def initialize(root = nil)
  @root         = root
  @project_root = root
  @log_file     = File.open(ENV["SPRING_LOG"] || File::NULL, "a")
end

Instance Attribute Details

#log_file ⇒ Object (readonly)

Returns the value of attribute log_file.



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# File 'lib/spring/env.rb', line 15

def log_file
  @log_file
end

Instance Method Details

#app_name ⇒ Object 



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# File 'lib/spring/env.rb', line 64

def app_name
  root.basename
end

#application_id ⇒ Object 



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# File 'lib/spring/env.rb', line 41

def application_id
  Digest::MD5.hexdigest(RUBY_VERSION + project_root.to_s)
end

#kill(sig) ⇒ Object 



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# File 'lib/spring/env.rb', line 102

def kill(sig)
  pid = self.pid
  Process.kill(sig, pid) if pid
rescue Errno::ESRCH
  # already dead
end

#log(message) ⇒ Object 



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# File 'lib/spring/env.rb', line 80

def log(message)
  log_file.puts "[#{Time.now}] [#{Process.pid}] #{message}"
  log_file.flush
end

#pid ⇒ Object 



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# File 'lib/spring/env.rb', line 57

def pid
  pidfile_path.exist? ? pidfile_path.read.to_i : nil
rescue Errno::ENOENT
  # This can happen if the pidfile is removed after we check it
  # exists
end

#pidfile_path ⇒ Object 



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# File 'lib/spring/env.rb', line 53

def pidfile_path
  tmp_path.join("#{application_id}.pid")
end

#project_root ⇒ Object 



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# File 'lib/spring/env.rb', line 27

def project_root
  @project_root ||= Spring.project_root_path
end

#root ⇒ Object 



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# File 'lib/spring/env.rb', line 23

def root
  @root ||= Spring.application_root_path
end

#server_running? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/spring/env.rb', line 68

def server_running?
  pidfile = pidfile_path.open('r+')
  !pidfile.flock(File::LOCK_EX | File::LOCK_NB)
rescue Errno::ENOENT
  false
ensure
  if pidfile
    pidfile.flock(File::LOCK_UN)
    pidfile.close
  end
end

#socket_name ⇒ Object 



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# File 'lib/spring/env.rb', line 49

def socket_name
  socket_path.to_s
end

#socket_path ⇒ Object 



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# File 'lib/spring/env.rb', line 45

def socket_path
  tmp_path.join(application_id)
end

#stop ⇒ Object 



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# File 'lib/spring/env.rb', line 85

def stop
  if server_running?
    timeout = Time.now + STOP_TIMEOUT
    kill 'TERM'
    sleep 0.1 until !server_running? || Time.now >= timeout

    if server_running?
      kill 'KILL'
      :killed
    else
      :stopped
    end
  else
    :not_running
  end
end

#tmp_path ⇒ Object 



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# File 'lib/spring/env.rb', line 35

def tmp_path
  path = Pathname.new(File.join(ENV['XDG_RUNTIME_DIR'] || Dir.tmpdir, "spring"))
  FileUtils.mkdir_p(path) unless path.exist?
  path
end

#version ⇒ Object 



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# File 'lib/spring/env.rb', line 31

def version
  Spring::VERSION
end