Class: Dependabot::Bundler::FileParser::GemfileDeclarationFinder

Inherits:
Object
  • Object
show all
Extended by:
T::Sig
Defined in:
lib/dependabot/bundler/file_parser/gemfile_declaration_finder.rb

Overview

Checks whether a dependency is declared in a Gemfile

Instance Method Summary collapse

Constructor Details

#initialize(gemfile:) ⇒ GemfileDeclarationFinder

Returns a new instance of GemfileDeclarationFinder.



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# File 'lib/dependabot/bundler/file_parser/gemfile_declaration_finder.rb', line 17

def initialize(gemfile:)
  @gemfile = gemfile
  @declaration_nodes = T.let({}, T::Hash[T::Hash[String, String], T.nilable(Prism::Node)])
end

Instance Method Details

#enhanced_req_string(dependency) ⇒ Object 



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# File 'lib/dependabot/bundler/file_parser/gemfile_declaration_finder.rb', line 29

def enhanced_req_string(dependency)
  return unless gemfile_includes_dependency?(dependency)

  fallback_string = dependency.fetch("requirement")
  call_node = declaration_node(dependency)
  return fallback_string unless call_node.is_a?(Prism::CallNode)

  req_nodes = call_node.arguments&.arguments&.[](1..-1) || []
  req_nodes = req_nodes.reject { |child| child.is_a?(Prism::HashNode) || child.is_a?(Prism::KeywordHashNode) }

  return fallback_string if req_nodes.none?
  return fallback_string unless req_nodes.all?(Prism::StringNode)

  original_req_string = T.cast(req_nodes, T::Array[Prism::StringNode]).map(&:unescaped)
  fallback_requirement =
    Gem::Requirement.new(fallback_string.split(", "))
  if fallback_requirement == Gem::Requirement.new(original_req_string)
    original_req_string.join(", ")
  else
    fallback_string
  end
end

#gemfile_includes_dependency?(dependency) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/dependabot/bundler/file_parser/gemfile_declaration_finder.rb', line 23

def gemfile_includes_dependency?(dependency)
  !declaration_node(dependency).nil?
end