304 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
			
		
		
	
	
			304 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			Ruby
		
	
	
	
	
	
| require 'FileUtils'
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| require_relative "./extend/formula_cop"
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| 
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| module RuboCop
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|   module Cop
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|     module FormulaAudit
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|       # This cop checks for various miscellaneous Homebrew coding styles
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|       class Lines < FormulaCop
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|         def audit_formula(_node, _class_node, _parent_class_node, _body_node)
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|           [:automake, :autoconf, :libtool].each do |dependency|
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|             next unless depends_on?(dependency)
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|             problem ":#{dependency} is deprecated. Usage should be \"#{dependency}\""
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|           end
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| 
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|           problem ':apr is deprecated. Usage should be "apr-util"' if depends_on?(:apr)
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|           problem ":tex is deprecated" if depends_on?(:tex)
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|         end
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|       end
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| 
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|       class ClassInheritance < FormulaCop
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|         def audit_formula(_node, class_node, parent_class_node, _body_node)
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|           begin_pos = start_column(parent_class_node)
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|           end_pos = end_column(class_node)
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|           return unless begin_pos-end_pos != 3
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|           problem "Use a space in class inheritance: class #{@formula_name} < #{class_name(parent_class_node)}"
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|         end
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|       end
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| 
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|       class Comments < FormulaCop
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|         def audit_formula(_node, _class_node, _parent_class_node, _body_node)
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|           # Commented-out cmake support from default template
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|           audit_comments do |comment|
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|             next unless comment.include?('# system "cmake')
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|             problem "Commented cmake call found"
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|           end
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| 
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|           # Comments from default template
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|           audit_comments do |comment|
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|             [
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|               "# PLEASE REMOVE",
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|               "# Documentation:",
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|               "# if this fails, try separate make/make install steps",
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|               "# The URL of the archive",
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|               "## Naming --",
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|               "# if your formula requires any X11/XQuartz components",
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|               "# if your formula fails when building in parallel",
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|               "# Remove unrecognized options if warned by configure",
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|             ].each do |template_comment|
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|               next unless comment.include?(template_comment)
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|               problem "Please remove default template comments"
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|               break
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|             end
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|           end
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| 
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|           audit_comments do |comment|
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|             # Commented-out depends_on
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|             next unless comment =~ /#\s*depends_on\s+(.+)\s*$/
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|             problem "Commented-out dep #{Regexp.last_match(1)}"
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|           end
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|         end
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|       end
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| 
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|       class Miscellaneous < FormulaCop
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|         def audit_formula(_node, _class_node, _parent_class_node, body_node)
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|           # FileUtils is included in Formula
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|           # encfs modifies a file with this name, so check for some leading characters
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|           find_instance_method_call(body_node, "FileUtils", nil) do |method_node|
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|             problem "Don't need 'FileUtils.' before #{method_node.method_name}"
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|           end
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| 
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|           # Check for long inreplace block vars
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|           find_all_blocks(body_node, :inreplace) do |node|
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|             block_arg = node.arguments.children.first
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|             next unless block_arg.source.size>1
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|             problem "\"inreplace <filenames> do |s|\" is preferred over \"|#{block_arg.source}|\"."
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|           end
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| 
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|           [:rebuild, :version_scheme].each do |m|
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|             find_method_with_args(body_node, m, 0) do
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|               problem "'#{m} 0' should be removed"
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|             end
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|           end
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| 
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|           [:mac?, :linux?].each do |m|
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|             next unless formula_tap == "homebrew-core"
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|             find_instance_method_call(body_node, "OS", m) do |check|
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|               problem "Don't use #{check.source}; Homebrew/core only supports macOS"
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|             end
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|           end
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| 
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|           find_every_method_call_by_name(body_node, :depends_on).each do |m|
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|             next unless modifier?(m)
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|             dep, option = hash_dep(m)
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|             next if dep.nil? || option.nil?
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|             problem "Dependency #{string_content(dep)} should not use option #{string_content(option)}"
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|           end
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| 
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|           find_instance_method_call(body_node, :version, :==) do |m|
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|             next unless parameters_passed?(m, "HEAD")
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|             problem "Use 'build.head?' instead of inspecting 'version'"
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|           end
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| 
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|           find_instance_method_call(body_node, :ENV, :fortran) do
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|             next if depends_on?(:fortran)
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|             problem "Use `depends_on :fortran` instead of `ENV.fortran`"
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|           end
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| 
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|           find_instance_method_call(body_node, :ARGV, :include?) do |m|
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|             param = parameters(m).first
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|             next unless match = regex_match_group(param, %r{--(HEAD|devel)})
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|             problem "Use \"if build.#{match[1].downcase}?\" instead"
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|           end
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| 
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|           find_const(body_node, :MACOS_VERSION) do
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|             problem "Use MacOS.version instead of MACOS_VERSION"
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|           end
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| 
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|           find_const(body_node, :MACOS_FULL_VERSION) do
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|             problem "Use MacOS.full_version instead of MACOS_FULL_VERSION"
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|           end
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| 
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|           dependency(body_node) do |m|
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|             # handle symbols and shit: WIP
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|             next unless modifier?(m.parent)
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|             dep = parameters(m).first
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|             condition = m.parent.condition
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|             if (condition.if? && condition.method_name == :include? && parameters_passed(condition, /with-#{string_content(dep)}$/))||
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|                 (condition.if? && condition.method_name == :with? && parameters_passed?(condition, /#{string_content(dep)}$/))
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|               problem "Replace #{m.parent.source} with #{dep.source} => :optional"
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|             end
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|             if (condition.unless? && condition.method_name == :include? && parameters_passed?(condition, /without-#{string_content(dep)}$/))||
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|                 (condition.unless? && condition.method_name == :without? && parameters_passed?(condition, /#{string_content(dep)}$/))
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|               problem "Replace #{m.parent.source} with #{dep.source} => :recommended"
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|             end
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|           end
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| 
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|           find_every_method_call_by_name(body_node, :depends_on).each do |m|
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|             next unless modifier?(m.parent)
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|             dep = parameters(m).first
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|             next if dep.hash_type?
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|             condition = m.parent.node_parts
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|           end
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| 
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|           find_method_with_args(body_node, :fails_with, :llvm) do
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|             problem "'fails_with :llvm' is now a no-op so should be removed"
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|           end
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| 
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|           find_method_with_args(body_node, :system, /^(otool|install_name_tool|lipo)$/) do
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|             problem "Use ruby-macho instead of calling #{@offensive_node.source}"
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|           end
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|           #
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|           find_method_with_args(body_node, :system, /npm/, /install/) do |m|
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|             next if @formula_name =~ /^kibana(\@\d+(\.\d+)?)?$/
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|             problem "Use Language::Node for npm install args" unless languageNode?(m)
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|           end
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|           if find_method_def(body_node, :test)
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|             problem "Use new-style test definitions (test do)"
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|           end
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| 
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|           if find_method_def(body_node, :options)
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|             problem "Use new-style option definitions"
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|           end
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| 
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|           find_method_with_args(body_node, :skip_clean, :all) do
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|             problem "`skip_clean :all` is deprecated; brew no longer strips symbols\n" \
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|               "\tPass explicit paths to prevent Homebrew from removing empty folders."
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|           end
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| 
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|           find_instance_method_call(body_node, :build, :universal?) do
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|             problem "macOS has been 64-bit only so build.universal? is deprecated."
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|           end
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| 
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|           find_instance_method_call(body_node, "ENV", :universal_binary) do
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|             problem "macOS has been 64-bit only since 10.6 so ENV.universal_binary is deprecated."
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|           end
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| 
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|           find_instance_method_call(body_node, "ENV", :x11) do
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|             problem 'Use "depends_on :x11" instead of "ENV.x11"'
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|           end
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| 
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|           find_every_method_call_by_name(body_node, :assert).each do |m|
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|             if method_called?(m, :include?) && !method_called?(m, :!)
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|               problem "Use `assert_match` instead of `assert ...include?`"
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|             end
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|           end
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| 
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|           find_every_method_call_by_name(body_node, :depends_on).each do |m|
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|             next unless method_called?(m, :new)
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|             problem "`depends_on` can take requirement classes instead of instances"
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|           end
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| 
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|           os = [:leopard?, :snow_leopard?, :lion?, :mountain_lion?]
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|           os.each do |version|
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|             find_instance_method_call(body_node, :MacOS, version) do |m|
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|               problem "\"#{m.source}\" is deprecated, use a comparison to MacOS.version instead"
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|             end
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|           end
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| 
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|           dirPattern(body_node) do |m|
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|             next unless m =~ /\[("[^\*{},]+")\]/
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|             problem "Dir(#{Regexp.last_match(1)}) is unnecessary; just use #{Regexp.last_match(1)}"
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|           end
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| 
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|           fileUtils_methods= FileUtils.singleton_methods(false).map { |m| Regexp.escape(m) }.join "|"
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|           find_method_with_args(body_node, :system, /fileUtils_methods/) do |m|
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|             method = string_content(@offensive_node)
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|             problem "Use the `#{method}` Ruby method instead of `#{m.source}`"
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|           end
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| 
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|           if find_method_def(@processed_source.ast)
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|             problem "Define method #{method_name(@offensive_node)} in the class body, not at the top-level"
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|           end
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| 
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|           find_instance_method_call(body_node, :build, :without?) do |m|
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|             next unless unless_modifier?(m.parent)
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|             correct = m.source.gsub("out?", "?").gsub("unless", "if")
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|             problem "Use #{correct} instead of unless #{m.source}"
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|           end
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| 
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|           find_instance_method_call(body_node, :build, :with?) do |m|
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|             next unless unless_modifier?(m.parent)
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|             correct = m.source.gsub("?", "out?").gsub("unless", "if")
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|             problem "Use #{correct} instead of unless #{m.source}"
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|           end
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| 
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|           find_instance_method_call(body_node, :build, :with?) do |m|
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|             next unless negation?(m)
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|             problem "Don't negate 'build.with?': use 'build.without?'"
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|           end
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| 
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|           find_instance_method_call(body_node, :build, :without?) do |m|
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|             next unless negation?(m)
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|             problem "Don't negate 'build.without?': use 'build.with?'"
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|           end
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| 
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|           find_instance_method_call(body_node, :build, :without?) do |m|
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|             arg = parameters(m).first
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|             next unless match = regex_match_group(arg, %r{-?-?without-(.*)})
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|             problem "Don't duplicate 'without': Use `build.without? \"#{match[1]}\"` to check for \"--without-#{match[1]}\""
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|           end
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| 
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|           find_instance_method_call(body_node, :build, :with?) do |m|
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|             arg = parameters(m).first
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|             next unless match = regex_match_group(arg, %r{-?-?with-(.*)})
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|             problem "Don't duplicate 'with': Use `build.with? \"#{match[1]}\"` to check for \"--with-#{match[1]}\""
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|           end
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| 
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|           find_instance_method_call(body_node, :build, :include?) do |m|
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|             arg = parameters(m).first
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|             next unless match = regex_match_group(arg, %r{with(out)?-(.*)})
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|             problem "Use build.with#{match[1]}? \"#{match[2]}\" instead of build.include? 'with#{match[1]}-#{match[2]}'"
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|           end
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| 
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|           find_instance_method_call(body_node, :build, :include?) do |m|
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|             arg = parameters(m).first
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|             next unless match = regex_match_group(arg, %r{\-\-(.*)})
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|             problem "Reference '#{match[1]}' without dashes"
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|           end
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| 
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|         end
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| 
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|         def unless_modifier?(node)
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|           node.modifier_form? && node.unless?
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|         end
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| 
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|         def modifier?(node)
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|           node.modifier_form?
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|         end
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| 
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|         def_node_search :condition, <<-EOS.undent
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|           (send (send nil :build) $_ $({str sym} _))
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|         EOS
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| 
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|         def_node_search :dependency, <<-EOS.undent
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|           (send nil :depends_on ({str sym} _))
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|         EOS
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| 
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|         # Match depends_on with hash as argument
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|         def_node_search :hash_dep, <<-EOS.undent
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|           {$(hash (pair $(str _) $(str _)))
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|            $(hash (pair $(str _) (array $(str _) ...)))}
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|         EOS
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| 
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|         def_node_matcher :negation?, '(send ... :!)'
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|         # This is Pattern Matching method for AST
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|         # Takes the AST node as argument and yields matching node if block given
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|         # Else returns boolean for the match
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|         def_node_search :languageNode?, <<-PATTERN
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|           (const (const nil :Language) :Node)
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|         PATTERN
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| 
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|         def_node_search :dirPattern, <<-PATTERN
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|           (send (const nil :Dir) :[] (str $_))
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|         PATTERN
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|       end
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|     end
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|   end
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| end
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| 
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| # Strict rules ported early
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| # find_method_with_args(@processed_source.ast, :require, "formula") do |m|
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| #   problem "#{m.source} is now unnecessary"
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| # end
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