Class: Dependency

Inherits:
Object show all
Extended by:
Cachable, Forwardable
Includes:
Dependable
Defined in:
dependency.rb

Overview

This class is part of an internal API. This class may only be used internally in repositories owned by Homebrew, except in casks or formulae. Third parties should avoid using this class if possible, as it may be removed or changed without warning.

A dependency on another Homebrew formula.

Direct Known Subclasses

UsesFromMacOSDependency

Constant Summary

Constants included from Dependable

Dependable::RESERVED_TAGS

Instance Attribute Summary collapse

Attributes included from Dependable

#tags

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Cachable

cache, clear_cache

Methods included from Dependable

#build?, #implicit?, #option_tags, #optional?, #options, #prune_from_option?, #prune_if_build_and_not_dependent?, #recommended?, #required?, #test?

Constructor Details

#initialize(name, tags = []) ⇒ Dependency

This method is part of an internal API. This method may only be used internally in repositories owned by Homebrew, except in casks or formulae. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns a new instance of Dependency.

Raises:

  • (ArgumentError) 


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# File 'dependency.rb', line 20

def initialize(name, tags = [])
  raise ArgumentError, "Dependency must have a name!" unless name

  @name = name
  @tags = tags

  return unless (tap_with_name = Tap.with_formula_name(name))

  @tap, = tap_with_name
end

Instance Attribute Details

#name ⇒ String (readonly)

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:



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# File 'dependency.rb', line 15

def name
  @name
end

#tap ⇒ Tap? (readonly)

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:



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# File 'dependency.rb', line 18

def tap
  @tap
end

Class Method Details

.action(dependent, dep, &block) ⇒ Object

This method is part of an internal API. This method may only be used internally in repositories owned by Homebrew, except in casks or formulae. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'dependency.rb', line 163

def action(dependent, dep, &block)
  catch(:action) do
    if block
      yield dependent, dep
    elsif dep.optional? || dep.recommended?
      prune unless dependent.build.with?(dep)
    end
  end
end

.expand(dependent, deps = dependent.deps, cache_key: nil, &block) ⇒ Object

This method is part of an internal API. This method may only be used internally in repositories owned by Homebrew, except in casks or formulae. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Expand the dependencies of each dependent recursively, optionally yielding [dependent, dep] pairs to allow callers to apply arbitrary filters to the list. The default filter, which is applied when a block is not given, omits optionals and recommends based on what the dependent has asked for



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# File 'dependency.rb', line 120

def expand(dependent, deps = dependent.deps, cache_key: nil, &block)
  # Keep track dependencies to avoid infinite cyclic dependency recursion.
  @expand_stack ||= []
  @expand_stack.push dependent.name

  if cache_key.present?
    cache[cache_key] ||= {}
    return cache[cache_key][cache_id dependent].dup if cache[cache_key][cache_id dependent]
  end

  expanded_deps = []

  deps.each do |dep|
    next if dependent.name == dep.name

    case action(dependent, dep, &block)
    when :prune
      next
    when :skip
      next if @expand_stack.include? dep.name

      expanded_deps.concat(expand(dep.to_formula, cache_key:, &block))
    when :keep_but_prune_recursive_deps
      expanded_deps << dep
    else
      next if @expand_stack.include? dep.name

      dep_formula = dep.to_formula
      expanded_deps.concat(expand(dep_formula, cache_key:, &block))

      # Fixes names for renamed/aliased formulae.
      dep = dep.dup_with_formula_name(dep_formula)
      expanded_deps << dep
    end
  end

  expanded_deps = merge_repeats(expanded_deps)
  cache[cache_key][cache_id dependent] = expanded_deps.dup if cache_key.present?
  expanded_deps
ensure
  @expand_stack.pop
end

.keep_but_prune_recursive_deps ⇒ void

This method is part of an internal API. This method may only be used internally in repositories owned by Homebrew, except in casks or formulae. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.

Keep a dependency, but prune its dependencies.



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# File 'dependency.rb', line 189

def keep_but_prune_recursive_deps
  throw(:action, :keep_but_prune_recursive_deps)
end

.merge_repeats(all) ⇒ Object

This method is part of an internal API. This method may only be used internally in repositories owned by Homebrew, except in casks or formulae. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'dependency.rb', line 193

def merge_repeats(all)
  grouped = all.group_by(&:name)

  all.map(&:name).uniq.map do |name|
    deps = grouped.fetch(name)
    dep  = deps.first
    tags = merge_tags(deps)
    kwargs = {}
    kwargs[:bounds] = dep.bounds if dep.uses_from_macos?
    dep.class.new(name, tags, **kwargs)
  end
end

.prune ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.

Prune a dependency and its dependencies recursively.



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# File 'dependency.rb', line 175

def prune
  throw(:action, :prune)
end

.skip ⇒ void

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

This method returns an undefined value.

Prune a single dependency but do not prune its dependencies.



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# File 'dependency.rb', line 181

def skip
  throw(:action, :skip)
end

Instance Method Details

#dup_with_formula_name(formula) ⇒ T.self_type

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Parameters:

Returns:

  • (T.self_type) 


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# File 'dependency.rb', line 108

def dup_with_formula_name(formula)
  self.class.new(formula.full_name.to_s, tags)
end

#installed?(minimum_version: nil, minimum_revision: nil) ⇒ Boolean

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Parameters:

  • minimum_version (Version, nil) (defaults to: nil)
  • minimum_revision (Integer, nil) (defaults to: nil)

Returns:

  • (Boolean) 


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# File 'dependency.rb', line 47

def installed?(minimum_version: nil, minimum_revision: nil)
  formula = begin
    to_formula
  rescue FormulaUnavailableError
    nil
  end
  return false unless formula

  return true if formula.latest_version_installed?

  return false if minimum_version.blank?

  installed_version = formula.any_installed_version
  return false unless installed_version

  # Tabs prior to 4.1.18 did not have revision or pkg_version fields.
  # As a result, we have to be more conversative when we do not have
  # a minimum revision from the tab and assume that if the formula has a
  # the same version and a non-zero revision that it needs upgraded.
  if minimum_revision.present?
    minimum_pkg_version = PkgVersion.new(minimum_version, minimum_revision)
    installed_version >= minimum_pkg_version
  elsif installed_version.version == minimum_version
    formula.revision.zero?
  else
    installed_version.version > minimum_version
  end
end

#missing_options(inherited_options) ⇒ Object

This method is part of an internal API. This method may only be used internally in repositories owned by Homebrew, except in casks or formulae. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'dependency.rb', line 81

def missing_options(inherited_options)
  formula = to_formula
  required = options
  required |= inherited_options
  required &= formula.options.to_a
  required -= Tab.for_formula(formula).used_options
  required
end

#option_names ⇒ Object

This method is part of an internal API. This method may only be used internally in repositories owned by Homebrew, except in casks or formulae. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'dependency.rb', line 90

def option_names
  [name.split("/").last].freeze
end

#satisfied?(inherited_options = [], minimum_version: nil, minimum_revision: nil) ⇒ Boolean

This method is part of an internal API. This method may only be used internally in repositories owned by Homebrew, except in casks or formulae. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:

  • (Boolean) 


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# File 'dependency.rb', line 76

def satisfied?(inherited_options = [], minimum_version: nil, minimum_revision: nil)
  installed?(minimum_version:, minimum_revision:) &&
    missing_options(inherited_options).empty?
end

#to_formula ⇒ Object

This method is part of an internal API. This method may only be used internally in repositories owned by Homebrew, except in casks or formulae. Third parties should avoid using this method if possible, as it may be removed or changed without warning. 



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# File 'dependency.rb', line 40

def to_formula
  formula = Formulary.factory(name, warn: false)
  formula.build = BuildOptions.new(options, formula.options)
  formula
end

#uses_from_macos? ⇒ Boolean

This method is part of a private API. This method may only be used in the Homebrew/brew repository. Third parties should avoid using this method if possible, as it may be removed or changed without warning.

Returns:

  • (Boolean) 


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# File 'dependency.rb', line 95

def uses_from_macos?
  false
end