A RequestSet groups a request to activate a set of dependencies.
nokogiri = Gem::Dependency.new 'nokogiri', '~> 1.6' pg = Gem::Dependency.new 'pg', '~> 0.14' set = Gem::RequestSet.new nokogiri, pg requests = set.resolve p requests.map { |r| r.full_name } #=> ["nokogiri-1.6.0", "mini_portile-0.5.1", "pg-0.17.0"]
Array of gems to install even if already installed
Treat missing dependencies as silent errors
Creates a RequestSet for a list of Gem::Dependency objects, deps
. You
can then resolve and install the resolved list of
dependencies.
nokogiri = Gem::Dependency.new 'nokogiri', '~> 1.6' pg = Gem::Dependency.new 'pg', '~> 0.14' set = Gem::RequestSet.new nokogiri, pg
# File lib/rubygems/request_set.rb, line 48 def initialize *deps @dependencies = deps @always_install = [] @development = false @requests = [] @soft_missing = false @sorted = nil @specs = nil yield self if block_given? end
Declare that a gem of name name
with reqs
requirements is needed.
# File lib/rubygems/request_set.rb, line 64 def gem name, *reqs @dependencies << Gem::Dependency.new(name, reqs) end
Add deps
Gem::Dependency objects
to the set.
# File lib/rubygems/request_set.rb, line 71 def import deps @dependencies += deps end
# File lib/rubygems/request_set.rb, line 75 def install options, &block if dir = options[:install_dir] return install_into dir, false, options, &block end cache_dir = options[:cache_dir] || Gem.dir specs = [] sorted_requests.each do |req| if req.installed? and @always_install.none? { |spec| spec == req.spec.spec } then yield req, nil if block_given? next end path = req.download cache_dir inst = Gem::Installer.new path, options yield req, inst if block_given? specs << inst.install end specs end
# File lib/rubygems/request_set.rb, line 103 def install_into dir, force = true, options = {} existing = force ? [] : specs_in(dir) existing.delete_if { |s| @always_install.include? s } dir = File.expand_path dir installed = [] sorted_requests.each do |req| if existing.find { |s| s.full_name == req.spec.full_name } yield req, nil if block_given? next end path = req.download(dir) unless path then # already installed yield req, nil if block_given? next end options[:install_dir] = dir options[:only_install_dir] = true inst = Gem::Installer.new path, options yield req, inst if block_given? inst.install installed << req end installed end
Load a dependency management file.
# File lib/rubygems/request_set.rb, line 142 def load_gemdeps path gf = Gem::RequestSet::GemDepedencyAPI.new self, path gf.load end
Resolve the requested dependencies and return an Array of Specification objects to be activated.
# File lib/rubygems/request_set.rb, line 151 def resolve set = nil resolver = Gem::DependencyResolver.new @dependencies, set resolver.development = @development resolver.soft_missing = @soft_missing @requests = resolver.resolve end
Resolve the requested dependencies against the gems available via Gem.path and return an Array of Specification objects to be activated.
# File lib/rubygems/request_set.rb, line 163 def resolve_current resolve Gem::DependencyResolver::CurrentSet.new end
# File lib/rubygems/request_set.rb, line 167 def sorted_requests @sorted ||= strongly_connected_components.flatten end
# File lib/rubygems/request_set.rb, line 171 def specs @specs ||= @requests.map { |r| r.full_spec } end
# File lib/rubygems/request_set.rb, line 175 def specs_in dir Dir["#{dir}/specifications/*.gemspec"].map do |g| Gem::Specification.load g end end