Class: Rubtools::Runner

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args) ⇒ Runner

Initialize the rubtool

  • Find all recipes

  • Parse options



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# File 'lib/rubtools.rb', line 15

def initialize(args)
  @args = args
  @options = Hash.new
  @tools = Hash.new
  @matches = Array.new

  @tool_libs = Dir.glob(File.join(File.dirname(__FILE__), 'tools', '**', '*.rb'))
  @tool_libs.each {|lib| require lib }

  option_parser = OptionParser.new do |opts|
    opts.banner = "Usage: rt constant:method [options]"

    opts.on("-v", "--[no-]verbose", "Run verbosely") do |v|
      @options[:verbose] = v
    end
    
    opts.separator ""
    opts.separator "Common options:"

    opts.on_tail("-h", "--help", "Show help") do
      Logger.info opts
      exit
    end

    opts.on_tail("--version", "Show rubTools version") do
      Logger.info Rubtools::VERSION
      exit
    end
  end

  begin
    option_parser.parse!(args)
    raise ArgumentError, "missing arguments" unless @args.any?
  rescue OptionParser::InvalidOption, ArgumentError => e
    Logger.info e.message
    Logger.info option_parser
    exit
  end
end

Instance Attribute Details

#args ⇒ Object

Returns the value of attribute args.



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# File 'lib/rubtools.rb', line 9

def args
  @args
end

#options ⇒ Object

Returns the value of attribute options.



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# File 'lib/rubtools.rb', line 9

def options
  @options
end

#tool_libs ⇒ Object

Returns the value of attribute tool_libs.



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# File 'lib/rubtools.rb', line 9

def tool_libs
  @tool_libs
end

#tools ⇒ Object

Returns the value of attribute tools.



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# File 'lib/rubtools.rb', line 9

def tools
  @tools
end

Instance Method Details

#run! ⇒ Object

Run!

  • Find the best constant method passed in parameter

  • Execute the method



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# File 'lib/rubtools.rb', line 59

def run!
  req_const_method = @args.shift.downcase
  values = req_const_method.split(/\W/)

  if values.size == 1
    req_method = values.flatten[0]
  elsif values.size == 2
    req_constant = values.flatten[0]
    req_method = values.flatten[1]
  end

  # Searching in tools libraries the method to call
  for constant in Rubtools::Tools.constants
    @tools[constant] = Array.new

    for method in Rubtools::Tools.const_get(constant).instance_methods(false)
      @tools[constant] << method
    end
  end

  for constant in @tools.keys
    for method in @tools[constant]
      if (req_method == method.to_s.downcase && req_constant == constant.to_s.downcase) || req_method == method.to_s.downcase
        @matches << [constant, method]
      end
    end
  end

  if @matches.any?
    constant = @matches.first[0]
    method = @matches.first[1]

    Logger.info "Calling #{constant}::#{method}..."
    object = Rubtools::Tools.const_get(constant).new
    object.options = @options
    
    begin
      if @args.any?
        object.method(method).call @args
      else
        object.method(method).call
      end
    rescue ArgumentError => e
      Logger.error "Method '#{method}' takes arguments: " + e.message
    end
  else
    Logger.error "No recipe found..."
  end
end