Class: Freyr::ServiceInfo

Inherits:
Object
  • Object
show all
Includes:
Base
Defined in:
lib/freyr/service_info.rb

Defined Under Namespace

Modules: Base

Constant Summary collapse

ROOT_PIDS = 
'/var/run/freyr'.freeze
USER_PIDS = 
File.expand_path('.freyr', '~').freeze
ROOT_LOGS = 
'/var/log/freyr'.freeze
USER_LOGS = 
USER_PIDS
MODIFIERS = 
Hash.new {|h,k| h[k] = []}
ATTRS = 
[]
SUDO_MATCHER = 
/^sudo\s+/

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Base

included

Constructor Details

#initialize(name = nil, args = {}, &block) ⇒ ServiceInfo

Returns a new instance of ServiceInfo.



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# File 'lib/freyr/service_info.rb', line 69

def initialize(name=nil, args={}, &block)
  @groups = []
  @also = []
  @dependencies = []
  @defined_in = []
  if name.is_a?(Hash)
    @name = name.keys.first
    @groups << name[@name]
  else
    @name = name
  end

  @service = Service.new(self)
  
  instance_eval(&block) if block_given?
end

Instance Attribute Details

#defined_in ⇒ Object (readonly)

Returns the value of attribute defined_in.



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# File 'lib/freyr/service_info.rb', line 63

def defined_in
  @defined_in
end

#groups ⇒ Object (readonly)

Returns the value of attribute groups.



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# File 'lib/freyr/service_info.rb', line 3

def groups
  @groups
end

Class Method Details

.from_file(file) ⇒ Object 



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# File 'lib/freyr/service_info.rb', line 183

def from_file file
  @file_path = file
  file = File.expand_path(file)
  Freyr.logger.debug("adding file")  {file}
  return [] unless File.exist?(file)
  @added_services = []
  @namespace = nil
  instance_eval(File.open(file).read,file,0)
  @added_services
end

.method_missing(name, *args, &blk) ⇒ Object 



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# File 'lib/freyr/service_info.rb', line 194

def method_missing name, *args, &blk
  STDERR.puts "Freyr doesn't support #{name} as used in #{@file_path}"
end

Instance Method Details

#also_as(*val) ⇒ Object 



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# File 'lib/freyr/service_info.rb', line 158

def also_as(*val)
  val.each do |aliaz|
    Service.by_selector[aliaz] = Service.by_selector[name]
    Service.by_name[aliaz] = Service.by_name[name]
  end
  @also |= val
end

#dir(val = nil) ⇒ Object 



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# File 'lib/freyr/service_info.rb', line 134

def dir val=nil
  if val
    val.sub! /(.)\/$/, '\1' # remove tailing slash
    Service.by_dir[val] = @service
  end

  if val = super
    val
  else
    '/'
  end
end

#env(val = nil) ⇒ Object

Raises:

  • (TypeError) 


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# File 'lib/freyr/service_info.rb', line 90

def env val=nil
  raise TypeError, 'environment must be a hash' unless val.is_a?(Hash) || val.nil?
  if val = super
    val
  else
    {}
  end
end

#group(*val) ⇒ Object 



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# File 'lib/freyr/service_info.rb', line 147

def group(*val)
  val.each do |group|
    Service.by_selector[group] << @service
  end
  @groups |= val
end

#log(val = nil) ⇒ Object 



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# File 'lib/freyr/service_info.rb', line 116

def log val=nil
  val = if val = super
    val
  else
    if @read_log
      @read_log
    else
      if @sudo
        File.join(ROOT_LOGS,"#{@name}.log")
      else
        File.join(USER_LOGS,"#{@name}.log")
      end
    end
  end

  val =~ /^\// ? val : File.join(dir,val)
end

#log_file ⇒ Object 



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# File 'lib/freyr/service_info.rb', line 68

alias log_file log

#pid_file(val = nil) ⇒ Object 



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# File 'lib/freyr/service_info.rb', line 99

def pid_file val=nil
  if val = super
    val
  else
    if @sudo
      File.join(ROOT_PIDS,"#{@name}.pid")
    else
      File.join(USER_PIDS,"#{@name}.pid")
    end
  end
end

#read_log(val = nil) ⇒ Object 



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# File 'lib/freyr/service_info.rb', line 111

def read_log val=nil
  @dont_write_log = true
  super
end

#requires(*val) ⇒ Object 



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# File 'lib/freyr/service_info.rb', line 154

def requires *val
  @dependencies |= val
end

#use_sudo ⇒ Object 



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# File 'lib/freyr/service_info.rb', line 86

def use_sudo
  @sudo = true
end