Class: Makitzo::World::Host

Inherits:
NamedEntity show all
Includes:
FileSystem
Defined in:
lib/makitzo/world/host.rb

Constant Summary

Constants included from FileSystem

FileSystem::HISTORY_DIR, FileSystem::INSTALL_FILE

Instance Attribute Summary

Attributes inherited from NamedEntity

#name

Instance Method Summary collapse

Methods included from FileSystem

install_file, #install_file, migration_history_dir, #migration_history_dir

Methods inherited from NamedEntity

#<=>, #eql?, #hash, #initialize, #read!, setting_accessor, #to_s

Methods included from Settings

#[], #[]=, #memo, #read, #set, #settings

Methods included from ApplicationAware

#app, #config, #logger, #store

Constructor Details

This class inherits a constructor from Makitzo::World::NamedEntity

Instance Method Details

#address ⇒ Object 



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# File 'lib/makitzo/world/host.rb', line 14

def address
  address  = name
  
  if username = read_merged(:ssh_username)
    address = "#{username}@#{address}"
  end
  
  if port = read_merged(:ssh_port)
    address << ":#{port}"
  end
  
  address
end

#applied_migrations ⇒ Object 



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# File 'lib/makitzo/world/host.rb', line 72

def applied_migrations
  store.applied_migrations_for_host(self)
end

#mark_migration_as_applied(migration) ⇒ Object 



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# File 'lib/makitzo/world/host.rb', line 76

def mark_migration_as_applied(migration)
  store.mark_migration_as_applied(self, migration)
end

#read_all_from_store(*keys) ⇒ Object 



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# File 'lib/makitzo/world/host.rb', line 64

def read_all_from_store(*keys)
  store.read_all(self, *keys)
end

#read_from_store(key, default = nil) ⇒ Object

Store delegators



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# File 'lib/makitzo/world/host.rb', line 56

def read_from_store(key, default = nil)
  store.read(self, key) || default
end

#read_merged(key, default = nil) ⇒ Object

read a setting from this host, or from its roles if the setting is not present on this host, all roles supplying a non-nil value must be in consensus or else a ConflictingPropertyError will be raised.



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# File 'lib/makitzo/world/host.rb', line 35

def read_merged(key, default = nil)
  config.synchronize do
    val = read(key)
    if val.nil?
      role_values = roles.map { |r| r.read(key) }.compact.uniq
      raise ConflictingPropertyError if role_values.length > 1
      val = role_values.first
    end
    val.nil? ? default : val
  end
end

#read_merged!(key) ⇒ Object

Raises:



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# File 'lib/makitzo/world/host.rb', line 47

def read_merged!(key)
  val = read_merged(key)
  raise MissingPropertyError, "missing property: #{key}" if val.nil?
  val
end

#roles ⇒ Object 



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# File 'lib/makitzo/world/host.rb', line 5

def roles
  @roles ||= []
end

#roles=(roles) ⇒ Object 



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# File 'lib/makitzo/world/host.rb', line 9

def roles=(roles)
  resolved_roles = [roles].flatten.map { |r| config.resolve_role(r) }
  @roles = resolved_roles
end

#root ⇒ Object 



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# File 'lib/makitzo/world/host.rb', line 28

def root;   read_merged(:makitzo_root);   end

#root! ⇒ Object 



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# File 'lib/makitzo/world/host.rb', line 29

def root!;  read_merged!(:makitzo_root);  end

#unmark_migration_as_applied(migration) ⇒ Object 



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# File 'lib/makitzo/world/host.rb', line 80

def unmark_migration_as_applied(migration)
  store.unmark_migration_as_applied(self, migration)
end

#write_all_to_store(hash) ⇒ Object 



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# File 'lib/makitzo/world/host.rb', line 68

def write_all_to_store(hash)
  store.write_all(self, hash)
end

#write_to_store(key, value) ⇒ Object 



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# File 'lib/makitzo/world/host.rb', line 60

def write_to_store(key, value)
  store.write(self, key, value)
end