Class: ServiceInfo

Inherits:
Object
  • Object
show all
Defined in:
lib/runit-man/service_info.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(a_name) ⇒ ServiceInfo

Returns a new instance of ServiceInfo.



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# File 'lib/runit-man/service_info.rb', line 6

def initialize(a_name)
  @name = a_name
end

Instance Attribute Details

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/runit-man/service_info.rb', line 4

def name
  @name
end

Class Method Details

.[](name) ⇒ Object 



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# File 'lib/runit-man/service_info.rb', line 119

def [](name)
  all_service_names.include?(name) ? ServiceInfo.new(name) : nil
end

.all ⇒ Object 



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# File 'lib/runit-man/service_info.rb', line 113

def all
  all_service_names.sort.map do |name|
    ServiceInfo.new(name)
  end
end

.log_location_cache ⇒ Object 



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# File 'lib/runit-man/service_info.rb', line 123

def log_location_cache
  unless @log_location_cache
    @log_location_cache = LogLocationCache.new
  end
  @log_location_cache
end

Instance Method Details

#active? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/runit-man/service_info.rb', line 27

def active?
  File.directory?(active_service_folder) || File.symlink?(active_service_folder)
end

#down! ⇒ Object 



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# File 'lib/runit-man/service_info.rb', line 43

def down!
  send_signal :d
end

#log_file_location ⇒ Object 



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# File 'lib/runit-man/service_info.rb', line 69

def log_file_location
  rel_path = self.class.log_location_cache[log_pid]
  return nil if rel_path.nil?
  File.expand_path(rel_path, log_run_folder)
end

#log_pid ⇒ Object 



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# File 'lib/runit-man/service_info.rb', line 65

def log_pid
  data_from_file(File.join(log_supervise_folder, 'pid'))
end

#logged? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/runit-man/service_info.rb', line 18

def logged?
  File.directory?(log_supervise_folder)
end

#pid ⇒ Object 



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# File 'lib/runit-man/service_info.rb', line 61

def pid
  data_from_file(File.join(supervise_folder, 'pid'))
end

#restart! ⇒ Object 



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# File 'lib/runit-man/service_info.rb', line 56

def restart!
  down!
  up!
end

#run? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/runit-man/service_info.rb', line 35

def run?
  !!(stat =~ /\brun\b/)
end

#send_signal(signal) ⇒ Object 



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# File 'lib/runit-man/service_info.rb', line 75

def send_signal(signal)
  return unless supervise?
  File.open(File.join(supervise_folder, 'control'), 'w') { |f| f.print signal.to_s }
end

#stat ⇒ Object 



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# File 'lib/runit-man/service_info.rb', line 22

def stat
  r = data_from_file(File.join(supervise_folder, 'stat'))
  r ? r : 'inactive'
end

#switch_down! ⇒ Object 



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# File 'lib/runit-man/service_info.rb', line 47

def switch_down!
  down!
  File.unlink(active_service_folder)
end

#switch_up! ⇒ Object 



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# File 'lib/runit-man/service_info.rb', line 52

def switch_up!
  File.symlink(inactive_service_folder, active_service_folder)
end

#switchable? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/runit-man/service_info.rb', line 31

def switchable?
  File.symlink?(active_service_folder) || File.directory?(inactive_service_folder)
end

#to_json ⇒ Object 



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# File 'lib/runit-man/service_info.rb', line 10

def to_json
  data = {}
  [ :name, :stat, :active?, :logged?, :switchable?, :run?, :pid, :log_pid, :log_file_location ].each do |sym|
    data[sym] = send(sym)
  end
  data.to_json
end

#up! ⇒ Object 



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# File 'lib/runit-man/service_info.rb', line 39

def up!
  send_signal :u
end