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Edit File : installer_set.rb \| Size : 6.30 KB
# frozen_string_literal: true ## # A set of gems for installation sourced from remote sources and local .gem # files class Gem::Resolver::InstallerSet < Gem::Resolver::Set ## # List of Gem::Specification objects that must always be installed. attr_reader :always_install # :nodoc: ## # Only install gems in the always_install list attr_accessor :ignore_dependencies # :nodoc: ## # Do not look in the installed set when finding specifications. This is # used by the --install-dir option to `gem install` attr_accessor :ignore_installed # :nodoc: ## # The remote_set looks up remote gems for installation. attr_reader :remote_set # :nodoc: ## # Ignore ruby & rubygems specification constraints. # attr_accessor :force # :nodoc: ## # Creates a new InstallerSet that will look for gems in +domain+. def initialize(domain) super() @domain = domain @f = Gem::SpecFetcher.fetcher @always_install = [] @ignore_dependencies = false @ignore_installed = false @local = {} @local_source = Gem::Source::Local.new @remote_set = Gem::Resolver::BestSet.new @force = false @specs = {} end ## # Looks up the latest specification for +dependency+ and adds it to the # always_install list. def add_always_install(dependency) request = Gem::Resolver::DependencyRequest.new dependency, nil found = find_all request found.delete_if do \|s\| s.version.prerelease? && !s.local? end unless dependency.prerelease? found = found.select do \|s\| Gem::Source::SpecificFile === s.source \|\| Gem::Platform.match(s.platform) end found = found.sort_by do \|s\| [s.version, Gem::Platform.sort_priority(s.platform)] end newest = found.last unless newest exc = Gem::UnsatisfiableDependencyError.new request exc.errors = errors raise exc end unless @force found_matching_metadata = found.reverse.find do \|spec\| metadata_satisfied?(spec) end if found_matching_metadata.nil? ensure_required_ruby_version_met(newest.spec) ensure_required_rubygems_version_met(newest.spec) else newest = found_matching_metadata end end @always_install << newest.spec end ## # Adds a local gem requested using +dep_name+ with the given +spec+ that can # be loaded and installed using the +source+. def add_local(dep_name, spec, source) @local[dep_name] = [spec, source] end ## # Should local gems should be considered? def consider_local? # :nodoc: @domain == :both \|\| @domain == :local end ## # Should remote gems should be considered? def consider_remote? # :nodoc: @domain == :both \|\| @domain == :remote end ## # Errors encountered while resolving gems def errors @errors + @remote_set.errors end ## # Returns an array of IndexSpecification objects matching DependencyRequest # +req+. def find_all(req) res = [] dep = req.dependency return res if @ignore_dependencies && @always_install.none? {\|spec\| dep.match? spec } name = dep.name dep.matching_specs.each do \|gemspec\| next if @always_install.any? {\|spec\| spec.name == gemspec.name } res << Gem::Resolver::InstalledSpecification.new(self, gemspec) end unless @ignore_installed if consider_local? matching_local = @local.values.select do \|spec, _\| req.match? spec end.map do \|spec, source\| Gem::Resolver::LocalSpecification.new self, spec, source end res.concat matching_local begin if local_spec = @local_source.find_gem(name, dep.requirement) res << Gem::Resolver::IndexSpecification.new( self, local_spec.name, local_spec.version, @local_source, local_spec.platform) end rescue Gem::Package::FormatError # ignore end end res.concat @remote_set.find_all req if consider_remote? res end def prefetch(reqs) @remote_set.prefetch(reqs) if consider_remote? end def prerelease=(allow_prerelease) super @remote_set.prerelease = allow_prerelease end def inspect # :nodoc: always_install = @always_install.map {\|s\| s.full_name } "#<%s domain: %s specs: %p always install: %p>" % [ self.class, @domain, @specs.keys, always_install ] end ## # Called from IndexSpecification to get a true Specification # object. def load_spec(name, ver, platform, source) # :nodoc: key = "#{name}-#{ver}-#{platform}" @specs.fetch key do tuple = Gem::NameTuple.new name, ver, platform @specs[key] = source.fetch_spec tuple end end ## # Has a local gem for +dep_name+ been added to this set? def local?(dep_name) # :nodoc: spec, _ = @local[dep_name] spec end def pretty_print(q) # :nodoc: q.group 2, "[InstallerSet", "]" do q.breakable q.text "domain: #{@domain}" q.breakable q.text "specs: " q.pp @specs.keys q.breakable q.text "always install: " q.pp @always_install end end def remote=(remote) # :nodoc: case @domain when :local then @domain = :both if remote when :remote then @domain = nil unless remote when :both then @domain = :local unless remote end end private def metadata_satisfied?(spec) spec.required_ruby_version.satisfied_by?(Gem.ruby_version) && spec.required_rubygems_version.satisfied_by?(Gem.rubygems_version) end def ensure_required_ruby_version_met(spec) # :nodoc: if rrv = spec.required_ruby_version ruby_version = Gem.ruby_version unless rrv.satisfied_by? ruby_version raise Gem::RuntimeRequirementNotMetError, "#{spec.full_name} requires Ruby version #{rrv}. The current ruby version is #{ruby_version}." end end end def ensure_required_rubygems_version_met(spec) # :nodoc: if rrgv = spec.required_rubygems_version unless rrgv.satisfied_by? Gem.rubygems_version rg_version = Gem::VERSION raise Gem::RuntimeRequirementNotMetError, "#{spec.full_name} requires RubyGems version #{rrgv}. The current RubyGems version is #{rg_version}. " + "Try 'gem update --system' to update RubyGems itself." end end end end Back

Edit File : installer_set.rb | Size : 6.30 KB

# frozen_string_literal: true
##
# A set of gems for installation sourced from remote sources and local .gem
# files

class Gem::Resolver::InstallerSet < Gem::Resolver::Set
  ##
  # List of Gem::Specification objects that must always be installed.

attr_reader :always_install # :nodoc:

##
  # Only install gems in the always_install list

attr_accessor :ignore_dependencies # :nodoc:

##
  # Do not look in the installed set when finding specifications.  This is
  # used by the --install-dir option to `gem install`

attr_accessor :ignore_installed # :nodoc:

##
  # The remote_set looks up remote gems for installation.

attr_reader :remote_set # :nodoc:

##
  # Ignore ruby & rubygems specification constraints.
  #

attr_accessor :force # :nodoc:

##
  # Creates a new InstallerSet that will look for gems in +domain+.

def initialize(domain)
    super()

@domain = domain

@f = Gem::SpecFetcher.fetcher

@always_install      = []
    @ignore_dependencies = false
    @ignore_installed    = false
    @local               = {}
    @local_source        = Gem::Source::Local.new
    @remote_set          = Gem::Resolver::BestSet.new
    @force               = false
    @specs               = {}
  end

##
  # Looks up the latest specification for +dependency+ and adds it to the
  # always_install list.

def add_always_install(dependency)
    request = Gem::Resolver::DependencyRequest.new dependency, nil

found = find_all request

found.delete_if do |s|
      s.version.prerelease? && !s.local?
    end unless dependency.prerelease?

found = found.select do |s|
      Gem::Source::SpecificFile === s.source ||
        Gem::Platform.match(s.platform)
    end

found = found.sort_by do |s|
      [s.version, Gem::Platform.sort_priority(s.platform)]
    end

newest = found.last

unless newest
      exc = Gem::UnsatisfiableDependencyError.new request
      exc.errors = errors

raise exc
    end

unless @force
      found_matching_metadata = found.reverse.find do |spec|
        metadata_satisfied?(spec)
      end

if found_matching_metadata.nil?
        ensure_required_ruby_version_met(newest.spec)
        ensure_required_rubygems_version_met(newest.spec)
      else
        newest = found_matching_metadata
      end
    end

@always_install << newest.spec
  end

##
  # Adds a local gem requested using +dep_name+ with the given +spec+ that can
  # be loaded and installed using the +source+.

def add_local(dep_name, spec, source)
    @local[dep_name] = [spec, source]
  end

##
  # Should local gems should be considered?

def consider_local? # :nodoc:
    @domain == :both || @domain == :local
  end

##
  # Should remote gems should be considered?

def consider_remote? # :nodoc:
    @domain == :both || @domain == :remote
  end

##
  # Errors encountered while resolving gems

def errors
    @errors + @remote_set.errors
  end

##
  # Returns an array of IndexSpecification objects matching DependencyRequest
  # +req+.

def find_all(req)
    res = []

dep = req.dependency

return res if @ignore_dependencies &&
                  @always_install.none? {|spec| dep.match? spec }

name = dep.name

dep.matching_specs.each do |gemspec|
      next if @always_install.any? {|spec| spec.name == gemspec.name }

res << Gem::Resolver::InstalledSpecification.new(self, gemspec)
    end unless @ignore_installed

if consider_local?
      matching_local = @local.values.select do |spec, _|
        req.match? spec
      end.map do |spec, source|
        Gem::Resolver::LocalSpecification.new self, spec, source
      end

res.concat matching_local

begin
        if local_spec = @local_source.find_gem(name, dep.requirement)
          res << Gem::Resolver::IndexSpecification.new(
            self, local_spec.name, local_spec.version,
            @local_source, local_spec.platform)
        end
      rescue Gem::Package::FormatError
        # ignore
      end
    end

res.concat @remote_set.find_all req if consider_remote?

res
  end

def prefetch(reqs)
    @remote_set.prefetch(reqs) if consider_remote?
  end

def prerelease=(allow_prerelease)
    super

@remote_set.prerelease = allow_prerelease
  end

def inspect # :nodoc:
    always_install = @always_install.map {|s| s.full_name }

"#<%s domain: %s specs: %p always install: %p>" % [
      self.class, @domain, @specs.keys, always_install
    ]
  end

##
  # Called from IndexSpecification to get a true Specification
  # object.

def load_spec(name, ver, platform, source) # :nodoc:
    key = "#{name}-#{ver}-#{platform}"

@specs.fetch key do
      tuple = Gem::NameTuple.new name, ver, platform

@specs[key] = source.fetch_spec tuple
    end
  end

##
  # Has a local gem for +dep_name+ been added to this set?

def local?(dep_name) # :nodoc:
    spec, _ = @local[dep_name]

spec
  end

def pretty_print(q) # :nodoc:
    q.group 2, "[InstallerSet", "]" do
      q.breakable
      q.text "domain: #{@domain}"

q.breakable
      q.text "specs: "
      q.pp @specs.keys

q.breakable
      q.text "always install: "
      q.pp @always_install
    end
  end

def remote=(remote) # :nodoc:
    case @domain
    when :local then
      @domain = :both if remote
    when :remote then
      @domain = nil unless remote
    when :both then
      @domain = :local unless remote
    end
  end

private

def metadata_satisfied?(spec)
    spec.required_ruby_version.satisfied_by?(Gem.ruby_version) &&
      spec.required_rubygems_version.satisfied_by?(Gem.rubygems_version)
  end

def ensure_required_ruby_version_met(spec) # :nodoc:
    if rrv = spec.required_ruby_version
      ruby_version = Gem.ruby_version
      unless rrv.satisfied_by? ruby_version
        raise Gem::RuntimeRequirementNotMetError,
          "#{spec.full_name} requires Ruby version #{rrv}. The current ruby version is #{ruby_version}."
      end
    end
  end

def ensure_required_rubygems_version_met(spec) # :nodoc:
    if rrgv = spec.required_rubygems_version
      unless rrgv.satisfied_by? Gem.rubygems_version
        rg_version = Gem::VERSION
        raise Gem::RuntimeRequirementNotMetError,
          "#{spec.full_name} requires RubyGems version #{rrgv}. The current RubyGems version is #{rg_version}. " +
          "Try 'gem update --system' to update RubyGems itself."
      end
    end
  end
end

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