Module: Tap::Generator::Destroy

Extended by:
Lazydoc::Attributes
Defined in:
lib/tap/generator/destroy.rb

Overview

::mixin run generators in reverse

A mixin defining how to run manifest actions in reverse.

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.parse(argv = ARGV, app = Tap::App.current, &block) ⇒ Object 



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# File 'lib/tap/generator/destroy.rb', line 13

def self.parse(argv=ARGV, app=Tap::App.current, &block)
  Base.parse_as(self, argv, app, &block)
end

Instance Method Details

#action ⇒ Object

Returns :destroy



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# File 'lib/tap/generator/destroy.rb', line 70

def action
  :destroy
end

#directory(target, options = {}) ⇒ Object

Removes the target directory if it exists. Missing, non-directory and non-empty targets are simply logged and not removed. When pretend is true, removal is logged but does not actually happen.

No options currently affect the behavior of this method.



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# File 'lib/tap/generator/destroy.rb', line 29

def directory(target, options={})
  target = path(target)
  
  case
  when !File.exists?(target)
    log_relative :missing, target
  when !File.directory?(target)
    log_relative 'not a directory', target
  when target == Dir.pwd
  when !Root.empty?(target)
    log_relative 'not empty', target
  else
    log_relative :rm, target
    FileUtils.rmdir(target) unless pretend
  end
  
  target
end

#file(target, options = {}) ⇒ Object

Removes the target file if it exists. Missing and non-file and targets are simply logged and not removed. When pretend is true, removal is logged but does not actually happen.

No options currently affect the behavior of this method.



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# File 'lib/tap/generator/destroy.rb', line 53

def file(target, options={})
  target = path(target)
  
  case
  when File.file?(target)
    log_relative :rm, target
    FileUtils.rm(target) unless pretend
  when File.directory?(target)
    log_relative 'not a file', target
  else
    log_relative :missing, target
  end
  
  target
end

#iterate(actions) ⇒ Object

Iterates over the actions in reverse, and collects the results.



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# File 'lib/tap/generator/destroy.rb', line 18

def iterate(actions)
  results = []
  actions.reverse_each {|action| results << yield(action) }
  results
end

#to_spec ⇒ Object 



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# File 'lib/tap/generator/destroy.rb', line 74

def to_spec
  spec = super
  spec['mixin'] = 'Tap::Generator::Destroy'
  spec
end