brew/Library/Homebrew/extend/os/linux/dependency_collector.rb
2025-02-17 18:56:31 -08:00

105 lines
3.4 KiB
Ruby

# typed: strict
# frozen_string_literal: true
require "os/linux/glibc"
module OS
module Linux
module DependencyCollector
sig { params(related_formula_names: T::Set[String]).returns(T.nilable(Dependency)) }
def gcc_dep_if_needed(related_formula_names)
# gcc is required for libgcc_s.so.1 if glibc or gcc are too old
return unless ::DevelopmentTools.needs_build_formulae?
return if building_global_dep_tree?
return if related_formula_names.include?(GCC)
return if global_dep_tree[GCC]&.intersect?(related_formula_names)
return unless formula_for(GCC)
Dependency.new(GCC, [:implicit])
end
sig { params(related_formula_names: T::Set[String]).returns(T.nilable(Dependency)) }
def glibc_dep_if_needed(related_formula_names)
return unless ::DevelopmentTools.needs_libc_formula?
return if building_global_dep_tree?
return if related_formula_names.include?(GLIBC)
return if global_dep_tree[GLIBC]&.intersect?(related_formula_names)
return unless formula_for(GLIBC)
Dependency.new(GLIBC, [:implicit])
end
private
GLIBC = "glibc"
GCC = OS::LINUX_PREFERRED_GCC_RUNTIME_FORMULA
private_constant :GLIBC, :GCC
sig { void }
def init_global_dep_tree_if_needed!
return unless ::DevelopmentTools.needs_build_formulae?
return if building_global_dep_tree?
return unless global_dep_tree.empty?
building_global_dep_tree!
global_dep_tree[GLIBC] = Set.new(global_deps_for(GLIBC))
# gcc depends on glibc
global_dep_tree[GCC] = Set.new([*global_deps_for(GCC), GLIBC, *@@global_dep_tree[GLIBC]])
built_global_dep_tree!
end
sig { params(name: String).returns(T.nilable(Formula)) }
def formula_for(name)
@formula_for ||= T.let({}, T.nilable(T::Hash[String, Formula]))
@formula_for[name] ||= ::Formula[name]
rescue FormulaUnavailableError
nil
end
sig { params(name: String).returns(T::Array[String]) }
def global_deps_for(name)
@global_deps_for ||= T.let({}, T.nilable(T::Hash[String, T::Array[String]]))
# Always strip out glibc and gcc from all parts of dependency tree when
# we're calculating their dependency trees. Other parts of Homebrew will
# catch any circular dependencies.
@global_deps_for[name] ||= if (formula = formula_for(name))
formula.deps.map(&:name).flat_map do |dep|
[dep, *global_deps_for(dep)].compact
end.uniq
else
[]
end
end
# Use class variables to avoid this expensive logic needing to be done more
# than once.
# rubocop:disable Style/ClassVars
@@global_dep_tree = T.let({}, T::Hash[String, T::Set[String]])
@@building_global_dep_tree = T.let(false, T::Boolean)
sig { returns(T::Hash[String, T::Set[String]]) }
def global_dep_tree
@@global_dep_tree
end
sig { void }
def building_global_dep_tree!
@@building_global_dep_tree = true
end
sig { void }
def built_global_dep_tree!
@@building_global_dep_tree = false
end
sig { returns(T::Boolean) }
def building_global_dep_tree?
@@building_global_dep_tree.present?
end
# rubocop:enable Style/ClassVars
end
end
end
DependencyCollector.prepend(OS::Linux::DependencyCollector)