Class: RuboCop::Cop::FormulaAudit::ShellVariables Private

Inherits:
RuboCop::Cop::FormulaCop show all
Extended by:
AutoCorrector
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 makes sure that environment variables are passed correctly to popen_* calls.

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, #style_exceptions_dir, #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. 



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# File 'rubocops/lines.rb', line 295

def audit_formula(_node, _class_node, _parent_class_node, body_node)
  return if body_node.nil?

  popen_commands = [
    :popen,
    :popen_read,
    :safe_popen_read,
    :popen_write,
    :safe_popen_write,
  ]

  popen_commands.each do |command|
    find_instance_method_call(body_node, "Utils", command) do |method|
      next unless (match = regex_match_group(parameters(method).first, /^([^"' ]+)=([^"' ]+)(?: (.*))?$/))

      good_args = "Utils.#{command}({ \"#{match[1]}\" => \"#{match[2]}\" }, \"#{match[3]}\")"

      problem "Use `#{good_args}` instead of `#{method.source}`" do |corrector|
        corrector.replace(@offensive_node.source_range,
                          "{ \"#{match[1]}\" => \"#{match[2]}\" }, \"#{match[3]}\"")
      end
    end
  end
end