Class: CommandMapper::Gen::Task

Inherits:
Rake::TaskLib
  • Object
show all
Defined in:
lib/command_mapper/gen/task.rb

Overview

Defines a command_mapper:gen task which automatically generates a command class file.

require 'command_mapper/gen/task'
CommandMapper::Gen::Task.new('grep','lib/path/to/grep.rb')

$ rake command_mapper:gen

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(command_name, output, parser: nil) {|task| ... } ⇒ Task

Initializes the task.

Parameters:

  • command_name (String) —

    The command name or path to the command.

  • output (String) —

    The output file path.

  • parser (:help, :man, nil) (defaults to: nil) —

    The optional parser to target.

Yields:

  • (task) —

    If a block is given, it will be yielded to before the rake task has been defined.

Yield Parameters:

  • task (Task) —

    The newly created task.



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# File 'lib/command_mapper/gen/task.rb', line 50

def initialize(command_name,output, parser: nil)
  @command_name = command_name
  @output       = output

  @parser = parser

  yield self if block_given?
  define
end

Instance Attribute Details

#command_name ⇒ String

The command name or path to the command.

Returns:

  • (String) 


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# File 'lib/command_mapper/gen/task.rb', line 19

def command_name
  @command_name
end

#output ⇒ String

The output file path.

Returns:

  • (String) 


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# File 'lib/command_mapper/gen/task.rb', line 24

def output
  @output
end

#parser ⇒ :help, ...

The parser to invoke.

Returns:

  • (:help, :man, nil) 


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# File 'lib/command_mapper/gen/task.rb', line 29

def parser
  @parser
end

Instance Method Details

#define ⇒ Object

Defines the command_mapper:gen task and output file's task.



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# File 'lib/command_mapper/gen/task.rb', line 63

def define
  output_dir = File.dirname(@output)

  directory(output_dir)
  file(@output => output_dir) do
    generate
  end

  desc "Generates the #{@output} file"
  task 'command_mapper:gen' => @output
end

#generate ⇒ Object

Generates the #output file.



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# File 'lib/command_mapper/gen/task.rb', line 78

def generate
  args = ["--output", @output]

  if @parser
    args << '--parser' << @parser.to_s
  end

  sh "command_mapper-gen", *args, @command_name
end