diff options
Diffstat (limited to 'ruby_1_9_3/lib/rubygems/commands/unpack_command.rb')
| -rw-r--r-- | ruby_1_9_3/lib/rubygems/commands/unpack_command.rb | 160 |
1 files changed, 0 insertions, 160 deletions
diff --git a/ruby_1_9_3/lib/rubygems/commands/unpack_command.rb b/ruby_1_9_3/lib/rubygems/commands/unpack_command.rb deleted file mode 100644 index 64b8ad64f8..0000000000 --- a/ruby_1_9_3/lib/rubygems/commands/unpack_command.rb +++ /dev/null @@ -1,160 +0,0 @@ -require 'rubygems/command' -require 'rubygems/installer' -require 'rubygems/version_option' -require 'rubygems/remote_fetcher' - -class Gem::Commands::UnpackCommand < Gem::Command - - include Gem::VersionOption - - def initialize - require 'fileutils' - - super 'unpack', 'Unpack an installed gem to the current directory', - :version => Gem::Requirement.default, - :target => Dir.pwd - - add_option('--target=DIR', - 'target directory for unpacking') do |value, options| - options[:target] = value - end - - add_option('--spec', 'unpack the gem specification') do |value, options| - options[:spec] = true - end - - add_version_option - end - - def arguments # :nodoc: - "GEMNAME name of gem to unpack" - end - - def defaults_str # :nodoc: - "--version '#{Gem::Requirement.default}'" - end - - def usage # :nodoc: - "#{program_name} GEMNAME" - end - - #-- - # TODO: allow, e.g., 'gem unpack rake-0.3.1'. Find a general solution for - # this, so that it works for uninstall as well. (And check other commands - # at the same time.) - - def execute - get_all_gem_names.each do |name| - dependency = Gem::Dependency.new name, options[:version] - path = get_path dependency - - unless path then - alert_error "Gem '#{name}' not installed nor fetchable." - next - end - - if @options[:spec] then - spec, metadata = get_metadata path - - if metadata.nil? then - alert_error "--spec is unsupported on '#{name}' (old format gem)" - next - end - - spec_file = File.basename spec.spec_file - - open spec_file, 'w' do |io| - io.write metadata - end - else - basename = File.basename path, '.gem' - target_dir = File.expand_path basename, options[:target] - FileUtils.mkdir_p target_dir - Gem::Installer.new(path, :unpack => true).unpack target_dir - say "Unpacked gem: '#{target_dir}'" - end - end - end - - ## - # - # Find cached filename in Gem.path. Returns nil if the file cannot be found. - # - #-- - # TODO: see comments in get_path() about general service. - - def find_in_cache(filename) - Gem.path.each do |path| - this_path = File.join(path, "cache", filename) - return this_path if File.exist? this_path - end - - return nil - end - - ## - # Return the full path to the cached gem file matching the given - # name and version requirement. Returns 'nil' if no match. - # - # Example: - # - # get_path 'rake', '> 0.4' # "/usr/lib/ruby/gems/1.8/cache/rake-0.4.2.gem" - # get_path 'rake', '< 0.1' # nil - # get_path 'rak' # nil (exact name required) - #-- - # TODO: This should be refactored so that it's a general service. I don't - # think any of our existing classes are the right place though. Just maybe - # 'Cache'? - # - # TODO: It just uses Gem.dir for now. What's an easy way to get the list of - # source directories? - - def get_path dependency - return dependency.name if dependency.name =~ /\.gem$/i - - specs = dependency.matching_specs - - selected = specs.sort_by { |s| s.version }.last # HACK: hunt last down - - return Gem::RemoteFetcher.fetcher.download_to_cache(dependency) unless - selected - - return unless dependency.name =~ /^#{selected.name}$/i - - # We expect to find (basename).gem in the 'cache' directory. Furthermore, - # the name match must be exact (ignoring case). - - path = find_in_cache File.basename selected.cache_file - - return Gem::RemoteFetcher.fetcher.download_to_cache(dependency) unless path - - path - end - - ## - # Extracts the Gem::Specification and raw metadata from the .gem file at - # +path+. - - def get_metadata path - format = Gem::Format.from_file_by_path path - spec = format.spec - - metadata = nil - - open path, Gem.binary_mode do |io| - tar = Gem::Package::TarReader.new io - tar.each_entry do |entry| - case entry.full_name - when 'metadata' then - metadata = entry.read - when 'metadata.gz' then - metadata = Gem.gunzip entry.read - end - end - end - - return spec, metadata - end - -end - |