class Gem::Commands::BuildCommand

# File lib/rubygems/commands/build_command.rb, line 10
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_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
  deprecate_option "-C",
                   version: "4.0",
                   extra_msg: "-C is a global flag now. Use `gem -C PATH build GEMSPEC_FILE [options]` instead"
end

# File lib/rubygems/commands/build_command.rb, line 67
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 89
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 100
def build_package(gemspec)
  spec = Gem::Specification.load(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

# File lib/rubygems/commands/build_command.rb, line 125
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 78
def find_gemspec(glob = "*.gemspec")
  gemspecs = Dir.glob(glob).sort

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

  gemspecs.first
end

# File lib/rubygems/commands/build_command.rb, line 133
def gem_name
  get_one_optional_argument
end

# File lib/rubygems/commands/build_command.rb, line 115
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