Class: Cri::CommandDSL

Inherits:
Object
  • Object
show all
Defined in:
lib/cri/command_dsl.rb

Overview

The command DSL is a class that is used for building and modifying commands.

Instance Method Summary (collapse)

Constructor Details

- (CommandDSL) initialize(command = nil)

A new instance of CommandDSL

Parameters:

  • command (Cri::Command, nil) (defaults to: nil) —

    The command to modify, or nil if a new command should be created



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# File 'lib/cri/command_dsl.rb', line 11

def initialize(command=nil)
  @command = command || Cri::Command.new
end

Instance Method Details

- (void) aliases(*args)

This method returns an undefined value.

Sets the command aliases.

Parameters:

  • args (String, Symbol, Array) —

    The new command aliases



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# File 'lib/cri/command_dsl.rb', line 50

def aliases(*args)
  @command.aliases = args.flatten.map { |a| a.to_s }
end

- (Cri::Command) command

The built command

Returns:



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# File 'lib/cri/command_dsl.rb', line 16

def command
  @command
end

- (void) description(arg)

This method returns an undefined value.

Sets the command description.

Parameters:

  • arg (String) —

    The new command description



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# File 'lib/cri/command_dsl.rb', line 68

def description(arg)
  @command.description = arg
end

- (void) flag(short, long, desc, &block) Also known as: forbidden

This method returns an undefined value.

Adds a new option with a forbidden argument to the command. If a block is given, it will be executed when the option is successfully parsed.

Parameters:

  • short (String, Symbol) —

    The short option name

  • long (String, Symbol) —

    The long option name

  • desc (String) —

    The option description

See Also:

  • Cri::CommandDSL.{{#option}


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# File 'lib/cri/command_dsl.rb', line 129

def flag(short, long, desc, &block)
  self.add_option(short, long, desc, :forbidden, block)
end

- (void) name(arg)

This method returns an undefined value.

Sets the command name.

Parameters:

  • arg (String) —

    The new command name



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# File 'lib/cri/command_dsl.rb', line 41

def name(arg)
  @command.name = arg
end

- (void) option(short, long, desc, params = {}, &block) Also known as: opt

This method returns an undefined value.

Adds a new option to the command. If a block is given, it will be executed when the option is successfully parsed.

Parameters:

  • short (String, Symbol) —

    The short option name

  • long (String, Symbol) —

    The long option name

  • desc (String) —

    The option description

  • params (Hash) (defaults to: {}) —

    a customizable set of options

Options Hash (params):

  • :argument (:forbidden, :required, :optional) —

    Whether the argument is forbidden, required or optional



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# File 'lib/cri/command_dsl.rb', line 95

def option(short, long, desc, params={}, &block)
  requiredness = params[:argument] || :forbidden
  self.add_option(short, long, desc, requiredness, block)
end

- (void) optional(short, long, desc, &block)

This method returns an undefined value.

Adds a new option with an optional argument to the command. If a block is given, it will be executed when the option is successfully parsed.

Parameters:

  • short (String, Symbol) —

    The short option name

  • long (String, Symbol) —

    The long option name

  • desc (String) —

    The option description

See Also:

  • Cri::CommandDSL.{{#option}


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# File 'lib/cri/command_dsl.rb', line 146

def optional(short, long, desc, &block)
  self.add_option(short, long, desc, :optional, block)
end

- (void) required(short, long, desc, &block)

This method returns an undefined value.

Adds a new option with a required argument to the command. If a block is given, it will be executed when the option is successfully parsed.

Parameters:

  • short (String, Symbol) —

    The short option name

  • long (String, Symbol) —

    The long option name

  • desc (String) —

    The option description

See Also:

  • Cri::CommandDSL.{{#option}


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# File 'lib/cri/command_dsl.rb', line 113

def required(short, long, desc, &block)
  self.add_option(short, long, desc, :required, block)
end

- (void) run(&block)

This method returns an undefined value.

Sets the run block to the given block. The given block should have two or three arguments (options, arguments, and optionally the command). Calling this will override existing run block or runner declarations (using #run and #runner, respectively).



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# File 'lib/cri/command_dsl.rb', line 156

def run(&block)
  unless block.arity != 2 || block.arity != 3
    raise ArgumentError,
      "The block given to Cri::Command#run expects two or three args"
  end

  @command.block = block
end

- (void) runner(klass)

This method returns an undefined value.

Defines the runner class for this command. Calling this will override existing run block or runner declarations (using #run and #runner, respectively).

Parameters:



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# File 'lib/cri/command_dsl.rb', line 173

def runner(klass)
  run do |opts, args, cmd|
    klass.new(opts, args, cmd).call
  end
end

- (void) subcommand(command = nil, &block)

This method returns an undefined value.

Adds a subcommand to the current command. The command can either be given explicitly, or a block can be given that defines the command.

Parameters:

  • command (Cri::Command, nil) (defaults to: nil) —

    The command to add as a subcommand, or nil if the block should be used to define the command that will be added as a subcommand



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# File 'lib/cri/command_dsl.rb', line 28

def subcommand(command=nil, &block)
  if command.nil?
    command = Cri::Command.define(&block)
  end

  @command.add_command(command)
end

- (void) summary(arg)

This method returns an undefined value.

Sets the command summary.

Parameters:

  • arg (String) —

    The new command summary



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# File 'lib/cri/command_dsl.rb', line 59

def summary(arg)
  @command.summary = arg
end

- (void) usage(arg)

This method returns an undefined value.

Sets the command usage. The usage should not include the “usage:” prefix, nor should it include the command names of the supercommand.

Parameters:

  • arg (String) —

    The new command usage



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# File 'lib/cri/command_dsl.rb', line 78

def usage(arg)
  @command.usage = arg
end