Class: MGit::Command

Inherits:
Object
  • Object
show all
Defined in:
lib/mgit/command.rb

Constant Summary collapse

@@commands = 
{}
@@aliases = 
{}

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.create(cmd) ⇒ Object 



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# File 'lib/mgit/command.rb', line 6

def self.create(cmd)
  cmd = cmd.downcase.to_sym
  klass = @@commands[cmd] || @@aliases[cmd]
  if klass
    klass.new
  else
    raise UnknownCommandError.new(cmd)
  end
end

.instance_each ⇒ Object 



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# File 'lib/mgit/command.rb', line 28

def self.instance_each
  @@commands.each do |_, klass|
    yield klass.new
  end
end

.list ⇒ Object 



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# File 'lib/mgit/command.rb', line 24

def self.list
  '[' + @@commands.keys.join(', ') + ']'
end

.register_alias(cmd) ⇒ Object 



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# File 'lib/mgit/command.rb', line 20

def self.register_alias(cmd)
  @@aliases[cmd] = self
end

.register_command(cmd) ⇒ Object 



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# File 'lib/mgit/command.rb', line 16

def self.register_command(cmd)
  @@commands[cmd] = self
end

Instance Method Details

#description ⇒ Object

Raises:



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# File 'lib/mgit/command.rb', line 42

def description
  raise ImplementationError.new("Command #{self.class.name} doesn't implement the description method.")
end

#help ⇒ Object

Raises:



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# File 'lib/mgit/command.rb', line 38

def help
  raise ImplementationError.new("Command #{self.class.name} doesn't implement the help method.")
end

#usage ⇒ Object

Raises:



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# File 'lib/mgit/command.rb', line 34

def usage
  raise ImplementationError.new("Command #{self.class.name} doesn't implement the usage method.")
end