Gam

??? 123123123123 ..................................................................................................................................... Gam

File manager - Edit - /opt/alt/ruby18/lib64/ruby/site_ruby/1.8/rubygems/dependency_installer.rb

Back
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, :prerelease => 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. # :prerelease:: Allow prerelease versions. See #install. # :security_policy:: See Gem::Installer::new and Gem::Security. # :user_install:: See Gem::Installer.new # :wrappers:: See Gem::Installer::new def initialize(options = {}) if options[:install_dir] then @gem_home = options[:install_dir] Gem::Specification.dirs = @gem_home Gem.ensure_gem_subdirectories @gem_home options[:install_dir] = @gem_home # FIX: because we suck and reuse below end 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] @prerelease = options[:prerelease] @security_policy = options[:security_policy] @user_install = options[:user_install] @wrappers = options[:wrappers] @installed_gems = [] @install_dir = options[:install_dir] \|\| Gem.dir @cache_dir = options[:cache_dir] \|\| @install_dir # Set with any errors that SpecFetcher finds while search through # gemspecs for a dep @errors = nil 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 preferred over older gems, and # local gems preferred over remote gems. def find_gems_with_sources(dep) # Reset the errors @errors = nil 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 # REFACTOR: all = dep.requirement.needs_all? requirements = dep.requirement.requirements.map do \|req, ver\| req end all = !dep.prerelease? && # we only need latest if there's one requirement and it is # guaranteed to match the newest specs (requirements.length > 1 or (requirements.first != ">=" and requirements.first != ">")) found, @errors = Gem::SpecFetcher.fetcher.fetch_with_errors dep, all, true, dep.prerelease? 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 } # these gems were listed by the user, always install them keep_names = specs.map { \|spec\| spec.full_name } dependency_list = Gem::DependencyList.new @development dependency_list.add(specs) to_do = specs.dup add_found_dependencies to_do, dependency_list unless @ignore_dependencies dependency_list.specs.reject! { \|spec\| not keep_names.include?(spec.full_name) and Gem::Specification.include?(spec) } unless dependency_list.ok? or @ignore_dependencies or @force then reason = dependency_list.why_not_ok?.map { \|k,v\| "#{k} requires #{v.join(", ")}" }.join("; ") raise Gem::DependencyError, "Unable to resolve dependencies: #{reason}" end @gems_to_install = dependency_list.dependency_order.reverse end def add_found_dependencies to_do, dependency_list seen = {} dependencies = Hash.new { \|h, name\| h[name] = Gem::Dependency.new name } 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\| dependencies[dep.name] = dependencies[dep.name].merge dep results = find_gems_with_sources(dep).reverse results.reject! do \|dep_spec,\| to_do.push dep_spec # already locally installed Gem::Specification.any? do \|installed_spec\| dep.name == installed_spec.name and dep.requirement.satisfied_by? installed_spec.version end end results.each do \|dep_spec, source_uri\| @specs_and_sources << [dep_spec, source_uri] dependency_list.add dep_spec end end end dependency_list.remove_specs_unsatisfied_by dependencies 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, prerelease = false) 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 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 unless spec_and_source then dep = Gem::Dependency.new gem_name, version dep.prerelease = true if prerelease 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.new( "Could not find a valid gem '#{gem_name}' (#{version}) locally or in a repository", gem_name, version, @errors) end @specs_and_sources = [spec_and_source] end ## # Installs the gem +dep_or_name+ and all its dependencies. Returns an Array # of installed gem specifications. # # If the +:prerelease+ option is set and there is a prerelease for # +dep_or_name+ the prerelease version will be installed. # # Unless explicitly specified as a prerelease dependency, prerelease gems # that +dep_or_name+ depend on will not be installed. # # If c-1.a depends on b-1 and a-1.a and there is a gem b-1.a available then # c-1.a, b-1 and a-1.a will be installed. b-1.a will need to be installed # separately. 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, @prerelease else dep_or_name.prerelease = @prerelease @specs_and_sources = [find_gems_with_sources(dep_or_name).last] end @installed_gems = [] gather_dependencies last = @gems_to_install.size - 1 @gems_to_install.each_with_index do \|spec, index\| next if Gem::Specification.include?(spec) and index != 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, :bin_dir => @bin_dir, :development => @development, :env_shebang => @env_shebang, :force => @force, :format_executable => @format_executable, :ignore_dependencies => @ignore_dependencies, :install_dir => @install_dir, :security_policy => @security_policy, :user_install => @user_install, :wrappers => @wrappers spec = inst.install @installed_gems << spec end @installed_gems end end