class Gem::Commands::BuildCommand

# 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

  add_option '-C PATH', '', 'Run as if gem build was started in <PATH> instead of the current working directory.' do |value, options|
    options[:build_path] = value
  end
end

# File lib/rubygems/commands/build_command.rb, line 59
def execute
  gem_name = get_one_optional_argument || find_gemspec
  build_gem(gem_name)
end

# File lib/rubygems/commands/build_command.rb, line 77
def build_gem(gem_name)
  gemspec = File.exist?(gem_name) ? gem_name : "#{gem_name}.gemspec"

  if File.exist?(gemspec)
    spec = Gem::Specification.load(gemspec)

    if options[:build_path]
      Dir.chdir(File.dirname(gemspec)) do
        spec = Gem::Specification.load(File.basename(gemspec))
        build_package(spec)
      end
    else
      build_package(spec)
    end

  else
    alert_error "Gemspec file not found: #{gemspec}"
    terminate_interaction(1)
  end
end

# File lib/rubygems/commands/build_command.rb, line 98
def build_package(spec)
  if spec
    Gem::Package.build(
      spec,
      options[:force],
      options[:strict],
      options[:output]
    )
  else
    alert_error "Error loading gemspec. Aborting."
    terminate_interaction 1
  end
end

# File lib/rubygems/commands/build_command.rb, line 66
def find_gemspec
  gemspecs = Dir.glob("*.gemspec").sort

  if gemspecs.size > 1
    alert_error "Multiple gemspecs found: #{gemspecs}, please specify one"
    terminate_interaction(1)
  end

  gemspecs.first
end