Class: Mothership::Inputs

Inherits:
Object
  • Object
show all
Defined in:
lib/mothership/inputs.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(command, context = nil, inputs = {}, given = {}, global = {}) ⇒ Inputs

Returns a new instance of Inputs.



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# File 'lib/mothership/inputs.rb', line 8

def initialize(
    command, context = nil,
    inputs = {}, given = {}, global = {})
  @command = command
  @context = context
  @inputs = inputs
  @given = given
  @global = global
end

Instance Attribute Details

#current_input ⇒ Object (readonly)

the input being processed; set during #get



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# File 'lib/mothership/inputs.rb', line 6

def current_input
  @current_input
end

#given ⇒ Object (readonly)

Returns the value of attribute given.



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# File 'lib/mothership/inputs.rb', line 3

def given
  @given
end

#global ⇒ Object (readonly)

Returns the value of attribute global.



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# File 'lib/mothership/inputs.rb', line 3

def global
  @global
end

#inputs ⇒ Object (readonly)

Returns the value of attribute inputs.



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# File 'lib/mothership/inputs.rb', line 3

def inputs
  @inputs
end

Instance Method Details

#[](name, *args) ⇒ Object 



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# File 'lib/mothership/inputs.rb', line 57

def [](name, *args)
  return @inputs[name] if @inputs.key?(name)

  if @command && meta = @command.inputs[name]
    # special case so #invoke can be called with singular-named inputs
    singular = meta[:singular]

    if @inputs.key?(singular)
      return @inputs[name] = [@inputs[singular]]
    end
  end

  found, val = get(name, @context, *args)

  @inputs[name] = val unless meta && meta[:forget]

  val
end

#direct(name) ⇒ Object 



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# File 'lib/mothership/inputs.rb', line 22

def direct(name)
  if @inputs.key?(name)
    @inputs[name]
  elsif (given = @given[name]) != :interact
    given
  end
end

#forget(name) ⇒ Object 



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# File 'lib/mothership/inputs.rb', line 124

def forget(name)
  @inputs.delete(name)
  @given.delete(name)
end

#get(name, context, *args) ⇒ Object

search:

  1. cache

  2. cache, singular

  3. given

  4. given, singular

  5. global

  6. global, singular



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# File 'lib/mothership/inputs.rb', line 101

def get(name, context, *args)
  before_input = @current_input
  @current_input = [name, args]

  if @command && meta = @command.inputs[name]
    found, val = find_in(@given, name, meta, context, *args)
  elsif @global.is_a?(self.class)
    return @global.get(name, context, *args)
  elsif @global.key?(name)
    return [true, @global[name]]
  end

  return [false, val] if not found

  if val == :interact
    [true, interact(name, context, *args)]
  else
    [true, convert_given(meta, context, val, *args)]
  end
ensure
  @current_input = before_input
end

#has?(name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mothership/inputs.rb', line 18

def has?(name)
  @inputs.key?(name) || @given.key?(name)
end

#interact(name, context, *args) ⇒ Object 



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# File 'lib/mothership/inputs.rb', line 76

def interact(name, context, *args)
  meta =
    if @command
      @command.inputs[name]
    else
      Mothership.global_option(name)
    end

  interact = meta[:interact] || :"ask_#{name}"

  case interact
  when Symbol, String
    context.send(interact, *args)
  else
    context.instance_exec(*args, &interact)
  end
end

#interactive?(name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mothership/inputs.rb', line 129

def interactive?(name)
  @given[name] == :interact
end

#merge(inputs) ⇒ Object 



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# File 'lib/mothership/inputs.rb', line 30

def merge(inputs)
  self.class.new(@command, @context, @inputs.merge(inputs), @given, @global)
end

#merge_given(given) ⇒ Object 



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# File 'lib/mothership/inputs.rb', line 34

def merge_given(given)
  self.class.new(@command, @context, @inputs.dup, @given.merge(given), @global)
end

#rebase(inputs) ⇒ Object 



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# File 'lib/mothership/inputs.rb', line 38

def rebase(inputs)
  self.class.new(@command, @context, inputs.merge(@inputs), @given, @global)
end

#rebase_given(given) ⇒ Object 



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# File 'lib/mothership/inputs.rb', line 42

def rebase_given(given)
  self.class.new(@command, @context, @inputs.dup, given.merge(@given), @global)
end

#without(*names) ⇒ Object 



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# File 'lib/mothership/inputs.rb', line 46

def without(*names)
  given = @given.dup
  inputs = @inputs.dup
  names.each do |n|
    given.delete(n)
    inputs.delete(n)
  end

  self.class.new(@command, @context, inputs, given, @global)
end