Module: Specs

Includes:
Contracts::Modules
Defined in:
lib/version.rb,
lib/cli.rb,
lib/specs.rb

Overview

Specs

Constant Summary collapse

SPECS_DIR = 
Pathname.new(File.dirname(__FILE__))
BUILTINS = 
%w(specs os arch ruby)
SEP = 
File::SEPARATOR
RECIPE_DIR =

…/specs/aspects

[SPECS_DIR, 'aspects'].join(SEP)
VERSION = 
'0.21'

Class Method Summary collapse

Class Method Details

.check_ruby_version ⇒ Object 



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# File 'lib/specs.rb', line 251

def self.check_ruby_version
  if Recipe.ruby1_8?
    puts 'Requires Ruby 1.9 or higher.'
    puts 'http://www.ruby-lang.org/'
    exit
  end
end

.command(aspect) ⇒ Object 



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# File 'lib/specs.rb', line 203

def self.command(aspect)
  # Ruby methods can't use hyphens (-),
  # So translate to underscores (_)
  # When looking up known aspects.
  method = aspect.gsub('-', '_').to_sym

  # Package?
  if aspect.include?(':')
    package_manager, package = aspect.split(':')
    package_manager = package_manager.to_sym

    if Recipe::Package.methods.include?(package_manager)
      Recipe::Package.send(package_manager, package)
    end
  # Known aspect?
  elsif Recipe.methods.include?(method)
    Recipe.send(method)
  # Unknown aspect.
  # Default to --version flag.
  else
    "#{aspect} --version"
  end
end

.main ⇒ Object 



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# File 'lib/cli.rb', line 18

def self.main
  check_ruby_version

  begin
    options = Docopt::docopt(USAGE, version: Specs::VERSION)

    aspects = options['<aspect>']

    # Work around https://github.com/docopt/docopt/issues/274
    if aspects == []
      aspects = ['os', 'hardware']
    end

    # Print specs' own version, and filter out redundant requests
    aspects = ['specs'] + (aspects - ['specs'])

    aspects.each do |aspect|
      # What does the aspect module say to run
      # in order to retrieve the aspect information?
      cmds = command(aspect)

      if !cmds || cmds.instance_of?(String)
        run(cmds, aspect)
      # Module returns an array of command strings.
      elsif cmds.instance_of?(Array)
        cmds.each { |cmd| run(cmd, aspect) }
      end
    end
  rescue Docopt::Exit => e
    puts e.message
  end
rescue Interrupt
  nil
end

.run(cmd, aspect) ⇒ Object

Print a command line instruction and its output, Emulating a user manually entering the instruction.



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# File 'lib/specs.rb', line 229

def self.run(cmd, aspect)
  if !cmd
    puts "#{aspect} aspect not implemented for this system"
  elsif cmd == 'specs'
    puts 'specs --version'
    puts Specs::Version
  else
    puts cmd

    output = SystemWithAliases::execute(cmd)

    if output.include?(Recipe.command_not_found)
      puts "#{cmd.split.first} not found"
    else
      puts output
    end

    # Vertically separate multiple aspects
    puts ''
  end
end