diff options
Diffstat (limited to 'lib/rubygems/dependency_installer.rb')
-rw-r--r-- | lib/rubygems/dependency_installer.rb | 339 |
1 files changed, 177 insertions, 162 deletions
diff --git a/lib/rubygems/dependency_installer.rb b/lib/rubygems/dependency_installer.rb index 6f19a310f7..e7c489a759 100644 --- a/lib/rubygems/dependency_installer.rb +++ b/lib/rubygems/dependency_installer.rb @@ -1,11 +1,11 @@ require 'rubygems' require 'rubygems/dependency_list' +require 'rubygems/dependency_resolver' require 'rubygems/package' require 'rubygems/installer' require 'rubygems/spec_fetcher' require 'rubygems/user_interaction' -require 'rubygems/source_local' -require 'rubygems/source_specific_file' +require 'rubygems/source' require 'rubygems/available_set' ## @@ -15,15 +15,7 @@ class Gem::DependencyInstaller include Gem::UserInteraction - attr_reader :gems_to_install - attr_reader :installed_gems - - ## - # Documentation types. For use by the Gem.done_installing hook - - attr_reader :document - - DEFAULT_OPTIONS = { + DEFAULT_OPTIONS = { # :nodoc: :env_shebang => false, :document => %w[ri], :domain => :both, # HACK dup @@ -35,9 +27,31 @@ class Gem::DependencyInstaller :wrappers => true, :build_args => nil, :build_docs_in_background => false, + :install_as_default => false }.freeze ## + # Documentation types. For use by the Gem.done_installing hook + + attr_reader :document + + ## + # Errors from SpecFetcher while searching for remote specifications + + attr_reader :errors + + ## + #-- + # TODO remove, no longer used + + attr_reader :gems_to_install # :nodoc: + + ## + # List of gems installed by #install in alphabetic order + + attr_reader :installed_gems + + ## # Creates a new installer instance. # # Options are: @@ -56,7 +70,8 @@ class Gem::DependencyInstaller # :wrappers:: See Gem::Installer::new # :build_args:: See Gem::Installer::new - def initialize(options = {}) + def initialize options = {} + @only_install_dir = !!options[:install_dir] @install_dir = options[:install_dir] || Gem.dir if options[:install_dir] then @@ -82,6 +97,7 @@ class Gem::DependencyInstaller @wrappers = options[:wrappers] @build_args = options[:build_args] @build_docs_in_background = options[:build_docs_in_background] + @install_as_default = options[:install_as_default] # Indicates that we should not try to update any deps unless # we absolutely must. @@ -93,13 +109,61 @@ class Gem::DependencyInstaller @cache_dir = options[:cache_dir] || @install_dir - # Set with any errors that SpecFetcher finds while search through - # gemspecs for a dep @errors = nil end - attr_reader :errors + ## + #-- + # TODO remove, no longer used + + def add_found_dependencies to_do, dependency_list # :nodoc: + seen = {} + dependencies = Hash.new { |h, name| h[name] = Gem::Dependency.new name } + + until to_do.empty? do + spec = to_do.shift + + # HACK why is spec nil? + next if spec.nil? or seen[spec.name] + seen[spec.name] = true + + deps = spec.runtime_dependencies + + if @development + if @dev_shallow + if @toplevel_specs.include? spec.full_name + deps |= spec.development_dependencies + end + else + deps |= spec.development_dependencies + end + end + + deps.each do |dep| + dependencies[dep.name] = dependencies[dep.name].merge dep + + if @minimal_deps + next if Gem::Specification.any? do |installed_spec| + dep.name == installed_spec.name and + dep.requirement.satisfied_by? installed_spec.version + end + end + + results = find_gems_with_sources(dep) + results.sorted.each do |t| + to_do.push t.spec + end + + results.remove_installed! dep + + @available << results + results.inject_into_list dependency_list + end + end + + dependency_list.remove_specs_unsatisfied_by dependencies + end ## # Creates an AvailableSet to install from based on +dep_or_name+ and # +version+ @@ -138,7 +202,7 @@ class Gem::DependencyInstaller # sources. Gems are sorted with newer gems preferred over older gems, and # local gems preferred over remote gems. - def find_gems_with_sources(dep) + def find_gems_with_sources dep # :nodoc: set = Gem::AvailableSet.new if consider_local? @@ -179,10 +243,50 @@ class Gem::DependencyInstaller 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 + set = Gem::AvailableSet.new + + if consider_local? + if gem_name =~ /\.gem$/ and File.file? gem_name then + src = Gem::Source::SpecificFile.new(gem_name) + set.add src.spec, src + else + local = Gem::Source::Local.new + + if s = local.find_gem(gem_name, version) + set.add s, local + end + end + end + + if set.empty? + dep = Gem::Dependency.new gem_name, version + dep.prerelease = true if prerelease + + set = find_gems_with_sources(dep) + set.match_platform! + end + + if set.empty? + raise Gem::SpecificGemNotFoundException.new(gem_name, version, @errors) + end + + @available = set + end + + ## # Gathers all dependencies necessary for the installation from local and # remote sources unless the ignore_dependencies was given. + #-- + # TODO remove, no longer used - def gather_dependencies + def gather_dependencies # :nodoc: specs = @available.all_specs # these gems were listed by the user, always install them @@ -214,93 +318,19 @@ class Gem::DependencyInstaller @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 - - # HACK why is spec nil? - next if spec.nil? or seen[spec.name] - seen[spec.name] = true - - deps = spec.runtime_dependencies - - if @development - if @dev_shallow - if @toplevel_specs.include? spec.full_name - deps |= spec.development_dependencies - end - else - deps |= spec.development_dependencies - end - end - - deps.each do |dep| - dependencies[dep.name] = dependencies[dep.name].merge dep - - if @minimal_deps - next if Gem::Specification.any? do |installed_spec| - dep.name == installed_spec.name and - dep.requirement.satisfied_by? installed_spec.version - end - end - - results = find_gems_with_sources(dep) - - results.sorted.each do |t| - to_do.push t.spec - end - - results.remove_installed! dep - - @available << results - results.inject_into_list dependency_list - 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) - - set = Gem::AvailableSet.new - - if consider_local? - if gem_name =~ /\.gem$/ and File.file? gem_name then - src = Gem::Source::SpecificFile.new(gem_name) - set.add src.spec, src - else - local = Gem::Source::Local.new - - if s = local.find_gem(gem_name, version) - set.add s, local + def in_background what # :nodoc: + fork_happened = false + if @build_docs_in_background and Process.respond_to?(:fork) + begin + Process.fork do + yield end + fork_happened = true + say "#{what} in a background process." + rescue NotImplementedError end end - - if set.empty? - dep = Gem::Dependency.new gem_name, version - # HACK Dependency objects should be immutable - dep.prerelease = true if prerelease - - set = find_gems_with_sources(dep) - set.match_platform! - end - - if set.empty? - raise Gem::SpecificGemNotFoundException.new(gem_name, version, @errors) - end - - @available = set + yield unless fork_happened end ## @@ -318,61 +348,30 @@ class Gem::DependencyInstaller # separately. def install dep_or_name, version = Gem::Requirement.default - available_set_for dep_or_name, version + request_set = resolve_dependencies dep_or_name, version @installed_gems = [] - gather_dependencies - - # REFACTOR is the last gem always the one that the user requested? - # This code assumes that but is that actually validated by the code? - - last = @gems_to_install.size - 1 - @gems_to_install.each_with_index do |spec, index| - # REFACTOR more current spec set hardcoding, should be abstracted? - 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 = @available.source_for spec - - begin - # REFACTOR make the fetcher to use configurable - local_gem_path = source.download spec, @cache_dir - rescue Gem::RemoteFetcher::FetchError - # TODO I doubt all fetch errors are recoverable, we should at least - # report the errors probably. - next if @force - raise - end - - if @development - if @dev_shallow - is_dev = @toplevel_specs.include? spec.full_name - else - is_dev = true - end - end + options = { + :bin_dir => @bin_dir, + :build_args => @build_args, + :env_shebang => @env_shebang, + :force => @force, + :format_executable => @format_executable, + :ignore_dependencies => @ignore_dependencies, + :security_policy => @security_policy, + :user_install => @user_install, + :wrappers => @wrappers, + :install_as_default => @install_as_default + } + options[:install_dir] = @install_dir if @only_install_dir - inst = Gem::Installer.new local_gem_path, - :bin_dir => @bin_dir, - :development => is_dev, - :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, - :build_args => @build_args - - spec = inst.install - - @installed_gems << spec + request_set.install options do |_, installer| + @installed_gems << installer.spec if installer end + @installed_gems.sort! + # Since this is currently only called for docs, we can be lazy and just say # it's documentation. Ideally the hook adder could decide whether to be in # the background or not, and what to call it. @@ -385,18 +384,34 @@ class Gem::DependencyInstaller @installed_gems end - def in_background what - fork_happened = false - if @build_docs_in_background and Process.respond_to?(:fork) - begin - Process.fork do - yield - end - fork_happened = true - say "#{what} in a background process." - rescue NotImplementedError - end + def install_development_deps # :nodoc: + if @development and @dev_shallow then + :shallow + elsif @development then + :all + else + :none end - yield unless fork_happened end + + def resolve_dependencies dep_or_name, version # :nodoc: + as = available_set_for dep_or_name, version + + request_set = as.to_request_set install_development_deps + request_set.soft_missing = @force + + installer_set = Gem::DependencyResolver::InstallerSet.new @domain + installer_set.always_install.concat request_set.always_install + installer_set.ignore_installed = @only_install_dir + + if @ignore_dependencies then + installer_set.ignore_dependencies = true + request_set.soft_missing = true + end + + request_set.resolve Gem::DependencyResolver.compose_sets(as, installer_set) + + request_set + end + end |