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Diffstat (limited to 'trunk/lib/rubygems/dependency_installer.rb')
| -rw-r--r-- | trunk/lib/rubygems/dependency_installer.rb | 254 |
1 files changed, 0 insertions, 254 deletions
diff --git a/trunk/lib/rubygems/dependency_installer.rb b/trunk/lib/rubygems/dependency_installer.rb deleted file mode 100644 index 8406844e79..0000000000 --- a/trunk/lib/rubygems/dependency_installer.rb +++ /dev/null @@ -1,254 +0,0 @@ -require 'rubygems' -require 'rubygems/dependency_list' -require 'rubygems/installer' -require 'rubygems/spec_fetcher' -require 'rubygems/user_interaction' - -## -# Installs a gem along with all its dependencies from local and remote gems. - -class Gem::DependencyInstaller - - include Gem::UserInteraction - - attr_reader :gems_to_install - attr_reader :installed_gems - - DEFAULT_OPTIONS = { - :env_shebang => false, - :domain => :both, # HACK dup - :force => false, - :format_executable => false, # HACK dup - :ignore_dependencies => false, - :security_policy => nil, # HACK NoSecurity requires OpenSSL. AlmostNo? Low? - :wrappers => true - } - - ## - # Creates a new installer instance. - # - # Options are: - # :cache_dir:: Alternate repository path to store .gem files in. - # :domain:: :local, :remote, or :both. :local only searches gems in the - # current directory. :remote searches only gems in Gem::sources. - # :both searches both. - # :env_shebang:: See Gem::Installer::new. - # :force:: See Gem::Installer#install. - # :format_executable:: See Gem::Installer#initialize. - # :ignore_dependencies:: Don't install any dependencies. - # :install_dir:: See Gem::Installer#install. - # :security_policy:: See Gem::Installer::new and Gem::Security. - # :wrappers:: See Gem::Installer::new - - def initialize(options = {}) - options = DEFAULT_OPTIONS.merge options - - @bin_dir = options[:bin_dir] - @development = options[:development] - @domain = options[:domain] - @env_shebang = options[:env_shebang] - @force = options[:force] - @format_executable = options[:format_executable] - @ignore_dependencies = options[:ignore_dependencies] - @security_policy = options[:security_policy] - @wrappers = options[:wrappers] - - @installed_gems = [] - - @install_dir = options[:install_dir] || Gem.dir - @cache_dir = options[:cache_dir] || @install_dir - - if options[:install_dir] then - spec_dir = File.join @install_dir, 'specifications' - @source_index = Gem::SourceIndex.from_gems_in spec_dir - else - @source_index = Gem.source_index - end - end - - ## - # Returns a list of pairs of gemspecs and source_uris that match - # Gem::Dependency +dep+ from both local (Dir.pwd) and remote (Gem.sources) - # sources. Gems are sorted with newer gems prefered over older gems, and - # local gems preferred over remote gems. - - def find_gems_with_sources(dep) - gems_and_sources = [] - - if @domain == :both or @domain == :local then - Dir[File.join(Dir.pwd, "#{dep.name}-[0-9]*.gem")].each do |gem_file| - spec = Gem::Format.from_file_by_path(gem_file).spec - gems_and_sources << [spec, gem_file] if spec.name == dep.name - end - end - - if @domain == :both or @domain == :remote then - begin - requirements = dep.version_requirements.requirements.map do |req, ver| - req - end - - all = requirements.length > 1 || - (requirements.first != ">=" and requirements.first != ">") - - found = Gem::SpecFetcher.fetcher.fetch dep, all - gems_and_sources.push(*found) - - rescue Gem::RemoteFetcher::FetchError => e - if Gem.configuration.really_verbose then - say "Error fetching remote data:\t\t#{e.message}" - say "Falling back to local-only install" - end - @domain = :local - end - end - - gems_and_sources.sort_by do |gem, source| - [gem, source =~ /^http:\/\// ? 0 : 1] # local gems win - end - end - - ## - # Gathers all dependencies necessary for the installation from local and - # remote sources unless the ignore_dependencies was given. - - def gather_dependencies - specs = @specs_and_sources.map { |spec,_| spec } - - dependency_list = Gem::DependencyList.new - dependency_list.add(*specs) - - unless @ignore_dependencies then - to_do = specs.dup - seen = {} - - until to_do.empty? do - spec = to_do.shift - next if spec.nil? or seen[spec.name] - seen[spec.name] = true - - deps = spec.runtime_dependencies - deps |= spec.development_dependencies if @development - - deps.each do |dep| - results = find_gems_with_sources(dep).reverse - - results.reject! do |dep_spec,| - to_do.push dep_spec - - @source_index.any? do |_, installed_spec| - dep.name == installed_spec.name and - dep.version_requirements.satisfied_by? installed_spec.version - end - end - - results.each do |dep_spec, source_uri| - next if seen[dep_spec.name] - @specs_and_sources << [dep_spec, source_uri] - dependency_list.add dep_spec - end - end - end - end - - @gems_to_install = dependency_list.dependency_order.reverse - end - - ## - # Finds a spec and the source_uri it came from for gem +gem_name+ and - # +version+. Returns an Array of specs and sources required for - # installation of the gem. - - def find_spec_by_name_and_version gem_name, version = Gem::Requirement.default - spec_and_source = nil - - glob = if File::ALT_SEPARATOR then - gem_name.gsub File::ALT_SEPARATOR, File::SEPARATOR - else - gem_name - end - - local_gems = Dir["#{glob}*"].sort.reverse - - unless local_gems.empty? then - local_gems.each do |gem_file| - next unless gem_file =~ /gem$/ - begin - spec = Gem::Format.from_file_by_path(gem_file).spec - spec_and_source = [spec, gem_file] - break - rescue SystemCallError, Gem::Package::FormatError - end - end - end - - if spec_and_source.nil? then - dep = Gem::Dependency.new gem_name, version - spec_and_sources = find_gems_with_sources(dep).reverse - - spec_and_source = spec_and_sources.find { |spec, source| - Gem::Platform.match spec.platform - } - end - - if spec_and_source.nil? then - raise Gem::GemNotFoundException, - "could not find gem #{gem_name} locally or in a repository" - end - - @specs_and_sources = [spec_and_source] - end - - ## - # Installs the gem and all its dependencies. Returns an Array of installed - # gems specifications. - - def install dep_or_name, version = Gem::Requirement.default - if String === dep_or_name then - find_spec_by_name_and_version dep_or_name, version - else - @specs_and_sources = [find_gems_with_sources(dep_or_name).last] - end - - @installed_gems = [] - - gather_dependencies - - @gems_to_install.each do |spec| - last = spec == @gems_to_install.last - # HACK is this test for full_name acceptable? - next if @source_index.any? { |n,_| n == spec.full_name } and not last - - # TODO: make this sorta_verbose so other users can benefit from it - say "Installing gem #{spec.full_name}" if Gem.configuration.really_verbose - - _, source_uri = @specs_and_sources.assoc spec - begin - local_gem_path = Gem::RemoteFetcher.fetcher.download spec, source_uri, - @cache_dir - rescue Gem::RemoteFetcher::FetchError - next if @force - raise - end - - inst = Gem::Installer.new local_gem_path, - :env_shebang => @env_shebang, - :force => @force, - :format_executable => @format_executable, - :ignore_dependencies => @ignore_dependencies, - :install_dir => @install_dir, - :security_policy => @security_policy, - :wrappers => @wrappers, - :bin_dir => @bin_dir, - :development => @development - - spec = inst.install - - @installed_gems << spec - end - - @installed_gems - end - -end - |