As a preview release, please file bugs for any problems you have with RubyGems at https://github.com/rubygems/rubygems/issues. To update to this preview release use:
gem update --system=2.0.0.rc.2
RubyGems 2.0 includes several new features and many breaking changes. Some of these changes will cause existing software to break. These changes are a result of improvements to the internals of RubyGems that make it more maintainable and improve APIs for RubyGems users.
If you are using bundler be sure to install version 1.3.0.pre. Older versions of bundler will not work with RubyGems 2.0.
Changes since RubyGems 1.8.25 (including past pre-releases):
- Deprecated Gem.unresolved_deps in favor of Gem::Specification.unresolved_deps
- Merged Gem::Builder into Gem::Package. Use Gem::Package.build(spec) instead of Gem::Builder.new(spec).build
- Merged Gem::Format into Gem::Package. Use Gem::Package.new instead of Gem::Format.from_file_by_path
- Moved Gem::OldFormat to Gem::Package::Old. Gem::Package will automatically detect old gems for you, so there is no need to refer to it.
- Removed Gem::DocManager, replaced by Gem::RDoc and done_installing hook
- Removed Gem::Package::TarInput in favor of Gem::Package
- Removed Gem::Package::TarOutput in favor of Gem::Package
- Removed Gem::RemoteFetcher#open_uri_or_path. (steveklabnik)
- Removed Gem::SSL in favor of using OpenSSL directly
- Removed Gem.loaded_path
- Removed RSS generation from the gem indexer
- Removed benchmark option from .gemrc
- Removed broken YAML gemspec support in
- Removed support for Ruby 1.9.1
- Removed many deprecated methods
- Improved support for default gems shipping with ruby 2.0.0+
- A gem can have arbitrary metadata through Gem::Specification#metadata
gem searchnow defaults to –remote and is anchored like gem list. Fixes #166
- Added –document to replace –rdoc and –ri. Use –no-document to disable documentation, –document=rdoc to only generate rdoc.
- Only ri-format documentation is generated by default.
gem serveruses RDoc::Servlet from RDoc 4.0 to generate HTML documentation.
- Add ability to install gems directly from a compatible gemdep file (Gemfile, Isolate, gem.deps.rb)
gem install --file path
- Add ability to load gem activation information from a gemdeps file (Gemfile, Isolate, gem.deps.rb). Set RUBYGEMS_GEMDEPS=path to have it loaded. Use - as the path to autodetect (current and parent directories are searched).
gem check --doctorto clean up after failed uninstallation. Bug #419 by Erik Hollensbe
- RubyGems no longer defaults to uninstalling gems if a dependency would be broken. Now you must manually say “yes”. Pull Request #406 by Shannon Skipper.
- Gem::DependencyInstaller now passes build_args down to the installer. Pull Request #412 by Sam Rawlins.
- Added a cmake builder. Pull request #265 by Allan Espinosa.
- Removed rubyforge page from gem list output
- Added –only-executables option to
gem pristine. Fixes #326
- Added -I flag for ‘gem query’ to exclude installed items
- Added Gem.install(name, version=default) for interactive sessions
- Added Gem::FilePermissionError#directory
- Added Gem::rubygems_version which is like Gem::ruby_version
- Added RUBYGEMS_HOST documentation to
- Added a post_installs hook that runs after Gem::DependencyInstaller finishes installing a set of gems
- Added a usage method for Gem::Commands::OwnerCommand. (ffmike)
- Added an optional type parameter to Gem::Specification#doc_dir.
- Added announcements url and clarified how to file tickets
- Added guidance for how to use rdoc and ri in setup command. (jjb)
- Attempting to install multiple gems with –version is now an error. You can specify per-gem versions like
- Clarified Gem::CommandManager example code to avoid multi load problems. (baroquebobcat)
- Corrupt or bad cached specs are now re-downloaded. (cookrn)
- Extension build arguments are saved from install and reused for pristine
- If the OS allows it, documentation is built in a forked background process. (alexch)
- Imported gem yank from the gemcutter gem. Fixes #177, #343
- Packaged gems now contain and verify SHA1 checksums
- Removed commas from gem update summary so you can paste it back to cleanup. (amatsuda)
- RubyGems will now warn when building gems with prerelease dependencies. Fixes #255
- The RUBYGEMS_HOST environment variable is used to determine appropriate API key for pushing or yanking gems
- Uninstall is now performed in reverse topological order.
- Users are told what to type when they try to uninstall a gem outside GEM_HOME
- When building gems with non-world-readable files a warning is shown.
- Gem.refresh now maintains the active gem list. Clearing the list would cause double-loads which would cause other bugs. Pull Request #427 by Jeremy Evans
- RubyGems now refuses to read the gem push credentials file if it has insecure permissions. Pull Request #438 by Shannon Skipper
- RubyGems now requires a local gem name to end in ‘.gem’. Issue #407 by Santiago Pastorino.
- Do not allow old-format gems to be installed with a security policy that verifies data.
- Gem installation will fail if RubyGems cannot load the specification from the gem. Bug #419 by Erik Hollensbe
- RubyGems tests now run in FIPS mode. Issue #365 by Vít Ondruch
- Only update the spec cache when we have permission. Ruby Bug #7509
- gem install now ignores directories and non .gem files that match the gem to install. Bug #407 by Santiago Pastorino.
- Added PID to setup bin_file while installing RubyGems to protect against errors. Fixes #328 by ConradIrwin
- Added missing require in Gem::Uninstaller when format_executable is set. (sakuro)
- Exact gem command name matches are now chosen even if a longer command overlaps the exact name
- Fixed Gem.loaded_path? with a Pathname instance. (mattetti)
- Fixed Gem::Dependency.new mismatch with rubygems.org checks
- Fixed SecurityError in Gem::Specification.load when $SAFE=1. (ged)
- Fixed SystemStackError with “gem list -r -a” on 1.9 (cldwalker)
gem ownerscommand so that exceptions don’t stop the rest of the command from completing
gem unpack uninstalled_gemdefault version picker.
- Fixed defunct rubyforge urls in gem command line help
- Fixed documentation for the various hooks collections
- Fixed documentation generation on setup when the gem directory does not exist. Fixes #253
- Fixed documentation to reflect where defaults overrides are loaded from. (ferrous26)
- Fixed editing of a Makefile with 8-bit characters. Fixes #181
- Fixed gem loading issue caused by dependencies not resolving.
- Fixed independent testing of test_gem_package_tar_output. Ruby Bug #4686 by Shota Fukumori
- Fixed typo in uninstall message. (sandal)
- Gem::Requirement#<=> returns nil on non-requirement arg.
- Gem::Requirement.satisfied_by? raises ArgumentError if given a non-version argument
- Gem::Version#initialize no longer modifies its parameter. (miaout17)
- Group-writable permissions are now allowed for gem repositories. (ctcherry)
- Memoized values in Gem::Specification are now reset the version or platform changes. Fixes #78
- More specific errors are raised for bad requirements. (arsduo)
- Removed reference to ‘sources’ gem in documentation
- Removed unused block arguments to avoid creating Proc objects. (k-tsj)
- RubyGems now asks before overwriting executable wrappers. Ruby Bug #1800
- The bindir is now created with mkdir_p during install. (voxik)
- URI scheme matching is no longer case-sensitive. Fixes #322
- ext/builder now checks $MAKE as well as $make (okkez)
Changes since RubyGems 2.0.0.rc.1:
Bug fixes: * Fixed signature verification of gems which was broken only on master. Thanks to Brian Buchanan. * Proper exceptions are raised when verifying an unsigned gem. Thanks to André Arko.