Class: Gem::Commands::BuildCommand

Inherits:
Gem::Command show all
Defined in:
lib/rubygems/commands/build_command.rb

Instance Attribute Summary

Attributes inherited from Gem::Command

#command, #defaults, #options, #program_name, #summary

Instance Method Summary collapse

Methods inherited from Gem::Command

add_common_option, #add_extra_args, #add_option, add_specific_extra_args, #begins?, build_args, build_args=, common_options, #defaults_str, extra_args, extra_args=, #get_all_gem_names, #get_all_gem_names_and_versions, #get_one_gem_name, #get_one_optional_argument, #handle_options, #handles?, #invoke, #invoke_with_build_args, #merge_options, #remove_option, #show_help, #show_lookup_failure, specific_extra_args, specific_extra_args_hash, #when_invoked

Methods included from UserInteraction

#alert, #alert_error, #alert_warning, #ask, #ask_for_password, #ask_yes_no, #choose_from_list, #say, #terminate_interaction, #verbose

Methods included from DefaultUserInteraction

ui, #ui, ui=, #ui=, use_ui, #use_ui

Constructor Details

#initialize ⇒ BuildCommand

Returns a new instance of BuildCommand.



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# File 'lib/rubygems/commands/build_command.rb', line 7

def initialize
  super 'build', 'Build a gem from a gemspec'

  add_option '--force', 'skip validation of the spec' do |value, options|
    options[:force] = true
  end

  add_option '--strict', 'consider warnings as errors when validating the spec' do |value, options|
    options[:strict] = true
  end

  add_option '-o', '--output FILE', 'output gem with the given filename' do |value, options|
    options[:output] = value
  end
end

Instance Method Details

#arguments ⇒ Object

:nodoc:



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# File 'lib/rubygems/commands/build_command.rb', line 23

def arguments # :nodoc:
  "GEMSPEC_FILE  gemspec file name to build a gem for"
end

#description ⇒ Object

:nodoc:



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# File 'lib/rubygems/commands/build_command.rb', line 27

def description # :nodoc:
  <<-EOF
The build command allows you to create a gem from a ruby gemspec.

The best way to build a gem is to use a Rakefile and the Gem::PackageTask
which ships with RubyGems.

The gemspec can either be created by hand or extracted from an existing gem
with gem spec:

$ gem unpack my_gem-1.0.gem
Unpacked gem: '.../my_gem-1.0'
$ gem spec my_gem-1.0.gem --ruby > my_gem-1.0/my_gem-1.0.gemspec
$ cd my_gem-1.0
[edit gem contents]
$ gem build my_gem-1.0.gemspec

Gems can be saved to a specified filename with the output option:

$ gem build my_gem-1.0.gemspec --output=release.gem

  EOF
end

#execute ⇒ Object 



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# File 'lib/rubygems/commands/build_command.rb', line 55

def execute
  gemspec = get_one_gem_name

  unless File.exist? gemspec
    gemspec += '.gemspec' if File.exist? gemspec + '.gemspec'
  end

  if File.exist? gemspec
    Dir.chdir(File.dirname(gemspec)) do
      spec = Gem::Specification.load File.basename(gemspec)

      if spec
        Gem::Package.build(
          spec,
          options[:force],
          options[:strict],
          options[:output]
        )
      else
        alert_error "Error loading gemspec. Aborting."
        terminate_interaction 1
      end
    end
  else
    alert_error "Gemspec file not found: #{gemspec}"
    terminate_interaction 1
  end
end

#usage ⇒ Object

:nodoc:



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# File 'lib/rubygems/commands/build_command.rb', line 51

def usage # :nodoc:
  "#{program_name} GEMSPEC_FILE"
end