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dependency_list.rb

# frozen_string_literal: true

#--
# Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.
# All rights reserved.
# See LICENSE.txt for permissions.
#++

require_relative "vendored_tsort"
require_relative "deprecate"

##
# Gem::DependencyList is used for installing and uninstalling gems in the
# correct order to avoid conflicts.
#--
# TODO: It appears that all but topo-sort functionality is being duplicated
# (or is planned to be duplicated) elsewhere in rubygems.  Is the majority of
# this class necessary anymore?  Especially #ok?, #why_not_ok?

class Gem::DependencyList
  attr_reader :specs

include Enumerable
  include Gem::TSort

##
  # Allows enabling/disabling use of development dependencies

attr_accessor :development

##
  # Creates a DependencyList from the current specs.

def self.from_specs
    list = new
    list.add(*Gem::Specification.to_a)
    list
  end

##
  # Creates a new DependencyList.  If +development+ is true, development
  # dependencies will be included.

def initialize(development = false)
    @specs = []

@development = development
  end

##
  # Adds +gemspecs+ to the dependency list.

def add(*gemspecs)
    @specs.concat gemspecs
  end

def clear
    @specs.clear
  end

##
  # Return a list of the gem specifications in the dependency list, sorted in
  # order so that no gemspec in the list depends on a gemspec earlier in the
  # list.
  #
  # This is useful when removing gems from a set of installed gems.  By
  # removing them in the returned order, you don't get into as many dependency
  # issues.
  #
  # If there are circular dependencies (yuck!), then gems will be returned in
  # order until only the circular dependents and anything they reference are
  # left.  Then arbitrary gemspecs will be returned until the circular
  # dependency is broken, after which gems will be returned in dependency
  # order again.

def dependency_order
    sorted = strongly_connected_components.flatten

result = []
    seen = {}

sorted.each do |spec|
      if index = seen[spec.name]
        if result[index].version < spec.version
          result[index] = spec
        end
      else
        seen[spec.name] = result.length
        result << spec
      end
    end

result.reverse
  end

##
  # Iterator over dependency_order

def each(&block)
    dependency_order.each(&block)
  end

def find_name(full_name)
    @specs.find {|spec| spec.full_name == full_name }
  end

def inspect # :nodoc:
    format("%s %p>", super[0..-2], map(&:full_name))
  end

##
  # Are all the dependencies in the list satisfied?

def ok?
    why_not_ok?(:quick).empty?
  end

def why_not_ok?(quick = false)
    unsatisfied = Hash.new {|h,k| h[k] = [] }
    each do |spec|
      spec.runtime_dependencies.each do |dep|
        inst = Gem::Specification.any? do |installed_spec|
          dep.name == installed_spec.name &&
            dep.requirement.satisfied_by?(installed_spec.version)
        end

unless inst || @specs.find {|s| s.satisfies_requirement? dep }
          unsatisfied[spec.name] << dep
          return unsatisfied if quick
        end
      end
    end

unsatisfied
  end

##
  # It is ok to remove a gemspec from the dependency list?
  #
  # If removing the gemspec creates breaks a currently ok dependency, then it
  # is NOT ok to remove the gemspec.

def ok_to_remove?(full_name, check_dev=true)
    gem_to_remove = find_name full_name

# If the state is inconsistent, at least don't crash
    return true unless gem_to_remove

siblings = @specs.find_all do |s|
      s.name == gem_to_remove.name &&
        s.full_name != gem_to_remove.full_name
    end

deps = []

@specs.each do |spec|
      check = check_dev ? spec.dependencies : spec.runtime_dependencies

check.each do |dep|
        deps << dep if gem_to_remove.satisfies_requirement?(dep)
      end
    end

deps.all? do |dep|
      siblings.any? do |s|
        s.satisfies_requirement? dep
      end
    end
  end

##
  # Remove everything in the DependencyList that matches but doesn't
  # satisfy items in +dependencies+ (a hash of gem names to arrays of
  # dependencies).

def remove_specs_unsatisfied_by(dependencies)
    specs.reject! do |spec|
      dep = dependencies[spec.name]
      dep && !dep.requirement.satisfied_by?(spec.version)
    end
  end

##
  # Removes the gemspec matching +full_name+ from the dependency list

def remove_by_name(full_name)
    @specs.delete_if {|spec| spec.full_name == full_name }
  end

##
  # Return a hash of predecessors.  <tt>result[spec]</tt> is an Array of
  # gemspecs that have a dependency satisfied by the named gemspec.

def spec_predecessors
    result = Hash.new {|h,k| h[k] = [] }

specs = @specs.sort.reverse

specs.each do |spec|
      specs.each do |other|
        next if spec == other

other.dependencies.each do |dep|
          if spec.satisfies_requirement? dep
            result[spec] << other
          end
        end
      end
    end

result
  end

def tsort_each_node(&block)
    @specs.each(&block)
  end

def tsort_each_child(node)
    specs = @specs.sort.reverse

dependencies = node.runtime_dependencies
    dependencies.push(*node.development_dependencies) if @development

dependencies.each do |dep|
      specs.each do |spec|
        if spec.satisfies_requirement? dep
          yield spec
          break
        end
      end
    end
  end

private

##
  # Count the number of gemspecs in the list +specs+ that are not in
  # +ignored+.

def active_count(specs, ignored)
    specs.count {|spec| ignored[spec.full_name].nil? }
  end
end

Name	Type	Size	Owner/Group	Permission	Last Modified	Actions
.	dir	-	root/linksafe	drwxr-xr-x	2025-02-13 06:01:06
..	dir	-	root/linksafe	drwxr-xr-x	2025-02-13 06:01:06
commands	dir	-	root/linksafe	drwxr-xr-x	2025-02-13 06:01:06
core_ext	dir	-	root/linksafe	drwxr-xr-x	2025-02-13 06:01:06
defaults	dir	-	root/linksafe	drwxr-xr-x	2025-02-13 06:01:06
ext	dir	-	root/linksafe	drwxr-xr-x	2025-02-13 06:01:06
gemcutter_utilities	dir	-	root/linksafe	drwxr-xr-x	2025-02-13 06:01:06
package	dir	-	root/linksafe	drwxr-xr-x	2025-02-13 06:01:06
request	dir	-	root/linksafe	drwxr-xr-x	2025-02-13 06:01:06
request_set	dir	-	root/linksafe	drwxr-xr-x	2025-02-13 06:01:06
resolver	dir	-	root/linksafe	drwxr-xr-x	2025-02-13 06:01:06
safe_marshal	dir	-	root/linksafe	drwxr-xr-x	2025-02-13 06:01:06
security	dir	-	root/linksafe	drwxr-xr-x	2025-02-13 06:01:06
source	dir	-	root/linksafe	drwxr-xr-x	2025-02-13 06:01:06
ssl_certs	dir	-	root/linksafe	drwxr-xr-x	2025-01-26 06:06:11
util	dir	-	root/linksafe	drwxr-xr-x	2025-02-13 06:01:06
vendor	dir	-	root/linksafe	drwxr-xr-x	2025-01-26 06:06:10
available_set.rb	text/x-ruby	3 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
basic_specification.rb	text/x-ruby	8.17 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
bundler_version_finder.rb	text/x-ruby	1.96 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
ci_detector.rb	text/x-ruby	3.71 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
command.rb	text/x-ruby	15.97 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
command_manager.rb	text/x-ruby	5.64 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
compatibility.rb	text/x-ruby	1022 B	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
config_file.rb	text/x-ruby	15.79 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
defaults.rb	text/x-ruby	7.35 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
dependency.rb	text/x-ruby	8.45 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
dependency_installer.rb	text/x-ruby	9.91 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
dependency_list.rb	text/x-ruby	5.55 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
deprecate.rb	text/x-ruby	5.04 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
doctor.rb	text/x-ruby	3.13 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
errors.rb	text/x-ruby	4.53 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
exceptions.rb	text/x-ruby	7.33 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
ext.rb	text/plain	498 B	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
gem_runner.rb	text/x-ruby	1.89 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
gemcutter_utilities.rb	text/x-ruby	11.17 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
gemspec_helpers.rb	text/x-ruby	394 B	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
install_default_message.rb	text/plain	349 B	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
install_message.rb	text/plain	323 B	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
install_update_options.rb	text/x-ruby	6.39 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
installer.rb	text/x-ruby	27.68 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
installer_uninstaller_utils.rb	text/x-ruby	771 B	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
local_remote_options.rb	text/x-ruby	3.61 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
name_tuple.rb	text/x-ruby	2.38 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
openssl.rb	text/x-ruby	125 B	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
package.rb	text/x-ruby	18.83 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
package_task.rb	text/x-ruby	3.79 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
path_support.rb	text/x-ruby	1.77 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
platform.rb	text/x-ruby	8.35 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
psych_tree.rb	text/x-ruby	795 B	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
query_utils.rb	text/x-ruby	8.5 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
rdoc.rb	text/x-ruby	232 B	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
remote_fetcher.rb	text/x-ruby	9.38 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
request.rb	text/x-ruby	8.7 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
request_set.rb	text/x-ruby	11.29 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
requirement.rb	text/x-ruby	7 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
resolver.rb	text/x-ruby	9.44 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
s3_uri_signer.rb	text/x-ruby	5.96 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
safe_marshal.rb	text/x-ruby	1.92 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
safe_yaml.rb	text/x-ruby	1.04 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
security.rb	text/plain	21.69 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
security_option.rb	text/x-ruby	1.06 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
shellwords.rb	text/plain	66 B	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
source.rb	text/x-ruby	5.78 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
source_list.rb	text/x-ruby	2.42 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
spec_fetcher.rb	text/x-ruby	6.16 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
specification.rb	text/x-ruby	69.1 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
specification_policy.rb	text/x-ruby	15.59 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
specification_record.rb	text/x-ruby	5.21 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
stub_specification.rb	text/x-ruby	4.96 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
text.rb	text/x-ruby	2.06 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
uninstaller.rb	text/x-ruby	10.94 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
unknown_command_spell_checker.rb	text/x-ruby	411 B	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
update_suggestion.rb	text/x-ruby	1.85 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
uri.rb	text/x-ruby	2.38 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
uri_formatter.rb	text/x-ruby	784 B	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
user_interaction.rb	text/x-ruby	13.1 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
util.rb	text/x-ruby	2.46 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
validator.rb	text/x-ruby	3.63 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
vendored_molinillo.rb	text/plain	81 B	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
vendored_net_http.rb	text/plain	233 B	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
vendored_optparse.rb	text/plain	79 B	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
vendored_securerandom.rb	text/plain	111 B	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
vendored_timeout.rb	text/plain	228 B	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
vendored_tsort.rb	text/plain	73 B	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
version.rb	text/x-ruby	12.98 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
version_option.rb	text/x-ruby	2.17 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18
yaml_serializer.rb	text/x-ruby	2.42 KB	root/linksafe	-rw-r--r--	2025-01-26 06:06:18