Class: Commands::Init::InitModel

Inherits:
Object
  • Object
show all
Defined in:
lib/commands/init/init_model.rb

Overview

Base class of ‘initializers’.

This actually acts more as a registry of defined classes.

Class Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Class Attribute Details

.model_classes ⇒ Object

Returns the value of attribute model_classes.



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# File 'lib/commands/init/init_model.rb', line 27

def model_classes
  @model_classes
end

Class Method Details

.inheritable_attributes(*args) ⇒ Object

A lot of our settings are actually class instance variables, which can be overridden. This allows the child classes that depend on these values to define what they are.



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# File 'lib/commands/init/init_model.rb', line 39

def self.inheritable_attributes(*args)
  @inheritable_attributes += args
  args.each do |arg|
    class_eval %(
    class << self; attr_accessor :#{arg} end
  )
  end
  @inheritable_attributes
end

.inherited(subclass) ⇒ Object 



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# File 'lib/commands/init/init_model.rb', line 49

def self.inherited(subclass)
  # Copy 'down' any inheritable attribute to the new child class
  @inheritable_attributes.each do |inheritable_attribute|
    instance_var = "@#{inheritable_attribute}"
    subclass.instance_variable_set(instance_var, instance_variable_get(instance_var))
  end

  if subclass.respond_to?(:abstract) && subclass.send(:abstract)
    InitModel.model_classes.push(subclass)
  end
end

.run(p4port, auto) ⇒ Object 



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# File 'lib/commands/init/init_model.rb', line 61

def self.run(p4port, auto)
  system_settings = nil
  super_user = nil
  models = []

  InitModel.model_classes.each do |model|
    if model <= DefaultSuperUser
      # do nothing
    elsif model <= SystemSettingsModel
      system_settings = model.new
    elsif !super_user and model <= UserModel and model.super
      super_user = model.new
    else
      models << model.new
    end
  end

  if !super_user
    super_user = DefaultSuperUser.new
  end

  models.sort! { |a, b| a.rank <=> b.rank }

  # Clear out any P4 Environment variables
  ENV.keys.select { |x| x =~ /^P4/ }.each { |x| ENV.delete(x) }

  p4 = P4.new
  p4.port = p4port
  p4.connect
  p4.exception_level = P4::RAISE_ERRORS
  p4.charset = 'auto' if auto

  if system_settings
    system_settings.execute(p4, super_user)
  else
    p4.user = super_user.
    p4.password = super_user.password
    results = p4.('-p')
    p4.password = results.first
    puts "log in as super, ticket is #{p4.password}"
  end

  models.each { |m| m.execute(p4, models, super_user) }
end

Instance Method Details

#execute(p4) ⇒ Object

It’s likely that the main child class will handle overriding this method. Our default method does nothing.



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# File 'lib/commands/init/init_model.rb', line 17

def execute(p4)
end

#rank ⇒ Object

Child classes should define this number greater than one. 0 should be reserved for a single system settings instance.



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# File 'lib/commands/init/init_model.rb', line 11

def rank
  1
end