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# frozen_string_literal: true
require_relative "package"
module Bundler
class Resolver
class Base
attr_reader :packages, :requirements, :source_requirements
def initialize(source_requirements, dependencies, base, platforms, options)
@source_requirements = source_requirements
@base = base
@packages = Hash.new do |hash, name|
hash[name] = Package.new(name, platforms, **options)
end
@requirements = dependencies.map do |dep|
dep_platforms = dep.gem_platforms(platforms)
# Dependencies scoped to external platforms are ignored
next if dep_platforms.empty?
name = dep.name
@packages[name] = Package.new(name, dep_platforms, **options.merge(dependency: dep))
dep
end.compact
end
def [](name)
@base[name]
end
def delete(specs)
@base.delete(specs)
end
def get_package(name)
@packages[name]
end
def base_requirements
@base_requirements ||= build_base_requirements
end
def unlock_names(names)
indirect_pins = indirect_pins(names)
if indirect_pins.any?
loosen_names(indirect_pins)
else
pins = pins(names)
if pins.any?
loosen_names(pins)
else
unrestrict_names(names)
end
end
end
def include_prereleases(names)
names.each do |name|
get_package(name).consider_prereleases!
end
end
private
def indirect_pins(names)
names.select {|name| @base_requirements[name].exact? && @requirements.none? {|dep| dep.name == name } }
end
def pins(names)
names.select {|name| @base_requirements[name].exact? }
end
def loosen_names(names)
names.each do |name|
version = @base_requirements[name].requirements.first[1]
@base_requirements[name] = Gem::Requirement.new(">= #{version}")
@base.delete_by_name(name)
end
end
def unrestrict_names(names)
names.each do |name|
@base_requirements.delete(name)
end
end
def build_base_requirements
base_requirements = {}
@base.each do |ls|
req = Gem::Requirement.new(ls.version)
base_requirements[ls.name] = req
end
base_requirements
end
end
end
end
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