Class: RuboCop::Cop::FormulaAudit::Miscellaneous Private

Inherits:
RuboCop::Cop::FormulaCop show all
Defined in:
rubocops/lines.rb

Overview

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

This cop checks for other miscellaneous style violations.

Instance Attribute Summary

Attributes inherited from RuboCop::Cop::FormulaCop

#file_path

Instance Method Summary collapse

Methods inherited from RuboCop::Cop::FormulaCop

#audit_comments, #audit_urls, #caveats_strings, #depends_on?, #depends_on_name_type?, #formula_tap, #get_checksum_node, #on_class, #tap_style_exception?, #versioned_formula?

Methods included from HelperFunctions

#block_method_called_in_block?, #block_size, #check_precedence, #class_name, #component_precedes?, #end_column, #expression_negated?, #find_all_blocks, #find_block, #find_blocks, #find_const, #find_every_func_call_by_name, #find_every_method_call_by_name, #find_instance_call, #find_instance_method_call, #find_method_calls_by_name, #find_method_def, #find_method_with_args, #find_node_method_by_name, #find_strings, #format_component, #line_number, #line_start_column, #method_called?, #method_called_ever?, #method_name, #node_equals?, #offending_node, #parameters, #parameters_passed?, #problem, #regex_match_group, #size, #source_buffer, #start_column, #string_content

Instance Method Details

#audit_formula(_node, _class_node, _parent_class_node, body_node) ⇒ Object

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. 



567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
 
# File 'rubocops/lines.rb', line 567

def audit_formula(_node, _class_node, _parent_class_node, body_node)
  # FileUtils is included in Formula
  # encfs modifies a file with this name, so check for some leading characters
  find_instance_method_call(body_node, "FileUtils", nil) do |method_node|
    problem "Don't need 'FileUtils.' before #{method_node.method_name}"
  end

  # Check for long inreplace block vars
  find_all_blocks(body_node, :inreplace) do |node|
    block_arg = node.arguments.children.first
    next unless block_arg.source.size > 1

    problem "\"inreplace <filenames> do |s|\" is preferred over \"|#{block_arg.source}|\"."
  end

  [:rebuild, :version_scheme].each do |method_name|
    find_method_with_args(body_node, method_name, 0) do
      problem "'#{method_name} 0' should be removed"
    end
  end

  find_instance_call(body_node, "ARGV") do |_method_node|
    problem "Use build instead of ARGV to check options"
  end

  find_instance_method_call(body_node, :man, :+) do |method|
    next unless (match = regex_match_group(parameters(method).first, /^man[1-8]$/))

    problem "\"#{method.source}\" should be \"#{match[0]}\""
  end

  # Avoid hard-coding compilers
  find_every_method_call_by_name(body_node, :system).each do |method|
    param = parameters(method).first
    if (match = regex_match_group(param, %r{^(/usr/bin/)?(gcc|llvm-gcc|clang)(\s|$)}))
      problem "Use \"\#{ENV.cc}\" instead of hard-coding \"#{match[2]}\""
    elsif (match = regex_match_group(param, %r{^(/usr/bin/)?((g|llvm-g|clang)\+\+)(\s|$)}))
      problem "Use \"\#{ENV.cxx}\" instead of hard-coding \"#{match[2]}\""
    end
  end

  find_instance_method_call(body_node, "ENV", :[]=) do |method|
    param = parameters(method)[1]
    if (match = regex_match_group(param, %r{^(/usr/bin/)?(gcc|llvm-gcc|clang)(\s|$)}))
      problem "Use \"\#{ENV.cc}\" instead of hard-coding \"#{match[2]}\""
    elsif (match = regex_match_group(param, %r{^(/usr/bin/)?((g|llvm-g|clang)\+\+)(\s|$)}))
      problem "Use \"\#{ENV.cxx}\" instead of hard-coding \"#{match[2]}\""
    end
  end

  # Prefer formula path shortcuts in strings
  formula_path_strings(body_node, :share) do |p|
    next unless (match = regex_match_group(p, %r{^(/(man))/?}))

    problem "\"\#{share}#{match[1]}\" should be \"\#{#{match[2]}}\""
  end

  formula_path_strings(body_node, :prefix) do |p|
    if (match = regex_match_group(p, %r{^(/share/(info|man))$}))
      problem "\"\#\{prefix}#{match[1]}\" should be \"\#{#{match[2]}}\""
    end
    if (match = regex_match_group(p, %r{^((/share/man/)(man[1-8]))}))
      problem "\"\#\{prefix}#{match[1]}\" should be \"\#{#{match[3]}}\""
    end
    if (match = regex_match_group(p, %r{^(/(bin|include|libexec|lib|sbin|share|Frameworks))}i))
      problem "\"\#\{prefix}#{match[1]}\" should be \"\#{#{match[2].downcase}}\""
    end
  end

  find_every_method_call_by_name(body_node, :depends_on).each do |method|
    key, value = destructure_hash(parameters(method).first)
    next if key.nil? || value.nil?
    next unless (match = regex_match_group(value, /^(lua|perl|python|ruby)(\d*)/))

    problem "#{match[1]} modules should be vendored rather than use deprecated `#{method.source}`"
  end

  find_every_method_call_by_name(body_node, :system).each do |method|
    next unless (match = regex_match_group(parameters(method).first, /^(env|export)(\s+)?/))

    problem "Use ENV instead of invoking '#{match[1]}' to modify the environment"
  end

  find_every_method_call_by_name(body_node, :depends_on).each do |method|
    param = parameters(method).first
    dep, option_child_nodes = hash_dep(param)
    next if dep.nil? || option_child_nodes.empty?

    option_child_nodes.each do |option|
      find_strings(option).each do |dependency|
        next unless (match = regex_match_group(dependency, /(with(out)?-\w+|c\+\+11)/))

        problem "Dependency #{string_content(dep)} should not use option #{match[0]}"
      end
    end
  end

  find_instance_method_call(body_node, :version, :==) do |method|
    next unless parameters_passed?(method, "HEAD")

    problem "Use 'build.head?' instead of inspecting 'version'"
  end

  find_instance_method_call(body_node, "ARGV", :include?) do |method|
    next unless parameters_passed?(method, "--HEAD")

    problem "Use \"if build.head?\" instead"
  end

  find_const(body_node, "MACOS_VERSION") do
    problem "Use MacOS.version instead of MACOS_VERSION"
  end

  find_const(body_node, "MACOS_FULL_VERSION") do
    problem "Use MacOS.full_version instead of MACOS_FULL_VERSION"
  end

  conditional_dependencies(body_node) do |node, method, param, dep_node|
    dep = string_content(dep_node)
    if node.if?
      if (method == :include? && regex_match_group(param, /^with-#{dep}$/)) ||
         (method == :with? && regex_match_group(param, /^#{dep}$/))
        offending_node(dep_node.parent)
        problem "Replace #{node.source} with #{dep_node.parent.source} => :optional"
      end
    elsif node.unless?
      if (method == :include? && regex_match_group(param, /^without-#{dep}$/)) ||
         (method == :without? && regex_match_group(param, /^#{dep}$/))
        offending_node(dep_node.parent)
        problem "Replace #{node.source} with #{dep_node.parent.source} => :recommended"
      end
    end
  end

  find_method_with_args(body_node, :fails_with, :llvm) do
    problem "'fails_with :llvm' is now a no-op so should be removed"
  end

  find_method_with_args(body_node, :needs, :openmp) do
    problem "'needs :openmp' should be replaced with 'depends_on \"gcc\"'"
  end

  find_method_with_args(body_node, :system, /^(otool|install_name_tool|lipo)/) do
    problem "Use ruby-macho instead of calling #{@offensive_node.source}"
  end

  find_every_method_call_by_name(body_node, :system).each do |method_node|
    # Skip Kibana: npm cache edge (see formula for more details)
    next if @formula_name.match?(/^kibana(@\d[\d.]*)?$/)

    first_param, second_param = parameters(method_node)
    next if !node_equals?(first_param, "npm") ||
            !node_equals?(second_param, "install")

    offending_node(method_node)
    problem "Use Language::Node for npm install args" unless languageNodeModule?(method_node)
  end

  problem "Use new-style test definitions (test do)" if find_method_def(body_node, :test)

  find_method_with_args(body_node, :skip_clean, :all) do
    problem "`skip_clean :all` is deprecated; brew no longer strips symbols. " \
            "Pass explicit paths to prevent Homebrew from removing empty folders."
  end

  if find_method_def(processed_source.ast)
    problem "Define method #{method_name(@offensive_node)} in the class body, not at the top-level"
  end

  find_instance_method_call(body_node, :build, :universal?) do
    next if @formula_name == "wine"

    problem "macOS has been 64-bit only since 10.6 so build.universal? is deprecated."
  end

  find_instance_method_call(body_node, "ENV", :universal_binary) do
    next if @formula_name == "wine"

    problem "macOS has been 64-bit only since 10.6 so ENV.universal_binary is deprecated."
  end

  find_instance_method_call(body_node, "ENV", :runtime_cpu_detection) do
    next if tap_style_exception? :runtime_cpu_detection_allowlist

    problem "Formulae should be verified as having support for runtime hardware detection before " \
            "using ENV.runtime_cpu_detection."
  end

  find_every_method_call_by_name(body_node, :depends_on).each do |method|
    next unless method_called?(method, :new)

    problem "`depends_on` can take requirement classes instead of instances"
  end

  find_instance_method_call(body_node, "ENV", :[]) do |method|
    next unless modifier?(method.parent)

    param = parameters(method).first
    next unless node_equals?(param, "CI")

    problem 'Don\'t use ENV["CI"] for Homebrew CI checks.'
  end

  find_instance_method_call(body_node, "Dir", :[]) do |method|
    next unless parameters(method).size == 1

    path = parameters(method).first
    next unless path.str_type?
    next unless (match = regex_match_group(path, /^[^*{},]+$/))

    problem "Dir([\"#{string_content(path)}\"]) is unnecessary; just use \"#{match[0]}\""
  end

  fileutils_methods = Regexp.new(
    FileUtils.singleton_methods(false)
             .map { |m| "(?-mix:^#{Regexp.escape(m)}$)" }
             .join("|"),
  )
  find_every_method_call_by_name(body_node, :system).each do |method|
    param = parameters(method).first
    next unless (match = regex_match_group(param, fileutils_methods))

    problem "Use the `#{match}` Ruby method instead of `#{method.source}`"
  end
end

#modifier?(node) ⇒ 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) 


793
794
795
796
797
 
# File 'rubocops/lines.rb', line 793

def modifier?(node)
  return false unless node.if_type?

  node.modifier_form?
end