class Gem::Commands::BuildCommand

# File lib/rubygems/commands/build_command.rb, line 12
def initialize
  super "build", "Build a gem from a gemspec"

  add_platform_option

  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_ruby_abi_option("build")

  add_option "--content-addressable", "build a content-addressable gem" do |_value, options|
    options[:content_addressable] = true
  end
end

# File lib/rubygems/commands/build_command.rb, line 81
def execute
  if build_path = options[:build_path]
    Dir.chdir(build_path) { build_gem }
    return
  end

  build_gem
end

# File lib/rubygems/commands/build_command.rb, line 92
def build_gem
  gemspec = resolve_gem_name

  if gemspec
    build_package(gemspec)
  else
    alert_error error_message
    terminate_interaction(1)
  end
end

# File lib/rubygems/commands/build_command.rb, line 103
def build_package(gemspec)
  spec = Gem::Specification.load(gemspec)
  if spec
    # Gem::Specification#initialize applies --platform unless it is the local platform
    if options[:added_platform] && spec.platform == Gem::Platform::RUBY && Gem.platforms.last == Gem::Platform.local
      spec.platform = Gem::Platform.local
    end

    ruby_abi = options[:ruby_abi]
    if ruby_abi
      requirement = Gem::ContentAddress.ruby_abi_requirement(ruby_abi)
      existing = spec.required_ruby_version

      unless existing.none? || existing == requirement
        alert_warning "required_ruby_version was changed from \"#{existing}\" to \"#{requirement}\" for this build " \
          "because --ruby-abi #{ruby_abi} was given."
      end

      spec.required_ruby_version = requirement
    end

    Gem::Package.build(
      spec,
      options[:force],
      options[:strict],
      options[:output],
      content_addressable: options[:content_addressable]
    )
  else
    alert_error "Error loading gemspec. Aborting."
    terminate_interaction 1
  end
end

# File lib/rubygems/commands/build_command.rb, line 147
def error_message
  if gem_name
    "Couldn't find a gemspec file matching '#{gem_name}' in #{Dir.pwd}"
  else
    "Couldn't find a gemspec file in #{Dir.pwd}"
  end
end

# File lib/rubygems/commands/build_command.rb, line 155
def gem_name
  get_one_optional_argument
end

# File lib/rubygems/commands/build_command.rb, line 137
def resolve_gem_name
  return find_gemspec unless gem_name

  if File.exist?(gem_name)
    gem_name
  else
    find_gemspec("#{gem_name}.gemspec") || find_gemspec(gem_name)
  end
end