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# frozen_string_literal: true
require_relative "vendored_tsort"
module Bundler
class SpecSet
include Enumerable
include TSort
attr_reader :incomplete_specs
def initialize(specs, incomplete_specs = [])
@specs = specs
@incomplete_specs = incomplete_specs
end
def for(dependencies, check = false, platforms = [nil])
handled = ["bundler"].product(platforms).map {|k| [k, true] }.to_h
deps = dependencies.product(platforms)
specs = []
loop do
break unless dep = deps.shift
name = dep[0].name
platform = dep[1]
incomplete = false
key = [name, platform]
next if handled.key?(key)
handled[key] = true
specs_for_dep = specs_for_dependency(*dep)
if specs_for_dep.any?
specs.concat(specs_for_dep)
specs_for_dep.first.dependencies.each do |d|
next if d.type == :development
incomplete = true if d.name != "bundler" && lookup[d.name].nil?
deps << [d, dep[1]]
end
else
incomplete = true
end
if incomplete && check
@incomplete_specs += lookup[name] || [LazySpecification.new(name, nil, nil)]
end
end
specs.uniq
end
def add_extra_platforms!(platforms)
return platforms.concat([Gem::Platform::RUBY]).uniq if @specs.empty?
new_platforms = all_platforms.select do |platform|
next if platforms.include?(platform)
next unless GemHelpers.generic(platform) == Gem::Platform::RUBY
complete_platform(platform)
end
return platforms if new_platforms.empty?
platforms.concat(new_platforms)
less_specific_platform = new_platforms.find {|platform| platform != Gem::Platform::RUBY && Bundler.local_platform === platform && platform === Bundler.local_platform }
platforms.delete(Bundler.local_platform) if less_specific_platform
platforms
end
def complete_platforms!(platforms)
platforms.each do |platform|
complete_platform(platform)
end
end
def validate_deps(s)
s.runtime_dependencies.each do |dep|
next if dep.name == "bundler"
return :missing unless names.include?(dep.name)
return :invalid if none? {|spec| dep.matches_spec?(spec) }
end
:valid
end
def [](key)
key = key.name if key.respond_to?(:name)
lookup[key]&.reverse || []
end
def []=(key, value)
@specs << value
reset!
end
def delete(specs)
specs.each {|spec| @specs.delete(spec) }
reset!
end
def sort!
self
end
def to_a
sorted.dup
end
def to_hash
lookup.dup
end
def materialize(deps)
materialized = self.for(deps, true)
SpecSet.new(materialized, incomplete_specs)
end
# Materialize for all the specs in the spec set, regardless of what platform they're for
# This is in contrast to how for does platform filtering (and specifically different from how `materialize` calls `for` only for the current platform)
# @return [Array<Gem::Specification>]
def materialized_for_all_platforms
@specs.map do |s|
next s unless s.is_a?(LazySpecification)
s.source.remote!
spec = s.materialize_for_installation
raise GemNotFound, "Could not find #{s.full_name} in any of the sources" unless spec
spec
end
end
def incomplete_for_platform?(deps, platform)
return false if @specs.empty?
@incomplete_specs = []
self.for(deps, true, [platform])
@incomplete_specs.any?
end
def missing_specs
@specs.select {|s| s.is_a?(LazySpecification) }
end
def -(other)
SpecSet.new(to_a - other.to_a)
end
def find_by_name_and_platform(name, platform)
@specs.detect {|spec| spec.name == name && spec.match_platform(platform) }
end
def delete_by_name(name)
@specs.reject! {|spec| spec.name == name }
reset!
end
def what_required(spec)
unless req = find {|s| s.runtime_dependencies.any? {|d| d.name == spec.name } }
return [spec]
end
what_required(req) << spec
end
def <<(spec)
@specs << spec
end
def length
@specs.length
end
def size
@specs.size
end
def empty?
@specs.empty?
end
def each(&b)
sorted.each(&b)
end
def names
lookup.keys
end
private
def reset!
@sorted = nil
@lookup = nil
end
def complete_platform(platform)
new_specs = []
valid_platform = lookup.all? do |_, specs|
spec = specs.first
matching_specs = spec.source.specs.search([spec.name, spec.version])
platform_spec = GemHelpers.select_best_platform_match(matching_specs, platform).find do |s|
s.matches_current_metadata? && valid_dependencies?(s)
end
if platform_spec
new_specs << LazySpecification.from_spec(platform_spec) unless specs.include?(platform_spec)
true
else
false
end
end
if valid_platform && new_specs.any?
@specs.concat(new_specs)
reset!
end
valid_platform
end
def all_platforms
@specs.flat_map {|spec| spec.source.specs.search([spec.name, spec.version]).map(&:platform) }.uniq
end
def valid_dependencies?(s)
validate_deps(s) == :valid
end
def sorted
rake = @specs.find {|s| s.name == "rake" }
begin
@sorted ||= ([rake] + tsort).compact.uniq
rescue TSort::Cyclic => error
cgems = extract_circular_gems(error)
raise CyclicDependencyError, "Your bundle requires gems that depend" \
" on each other, creating an infinite loop. Please remove either" \
" gem '#{cgems[0]}' or gem '#{cgems[1]}' and try again."
end
end
def extract_circular_gems(error)
error.message.scan(/@name="(.*?)"/).flatten
end
def lookup
@lookup ||= begin
lookup = {}
@specs.each do |s|
lookup[s.name] ||= []
lookup[s.name] << s
end
lookup
end
end
def tsort_each_node
# MUST sort by name for backwards compatibility
@specs.sort_by(&:name).each {|s| yield s }
end
def specs_for_dependency(dep, platform)
specs_for_name = lookup[dep.name]
return [] unless specs_for_name
matching_specs = if dep.force_ruby_platform
GemHelpers.force_ruby_platform(specs_for_name)
else
GemHelpers.select_best_platform_match(specs_for_name, platform || Bundler.local_platform)
end
matching_specs.map!(&:materialize_for_installation).compact! if platform.nil?
matching_specs
end
def tsort_each_child(s)
s.dependencies.sort_by(&:name).each do |d|
next if d.type == :development
specs_for_name = lookup[d.name]
next unless specs_for_name
specs_for_name.each {|s2| yield s2 }
end
end
end
end