Class: Bibliothecary::Parsers::Cargo

Inherits:
Object
  • Object
show all
Includes:
Analyser
Defined in:
lib/bibliothecary/parsers/cargo.rb

Class Method Summary collapse

Methods included from Analyser

create_analysis, create_error_analysis, included

Class Method Details

.mapping ⇒ Object 



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# File 'lib/bibliothecary/parsers/cargo.rb', line 8

def self.mapping
  {
    match_filename("Cargo.toml") => {
      kind: "manifest",
      parser: :parse_manifest,
    },
    match_filename("Cargo.lock") => {
      kind: "lockfile",
      parser: :parse_lockfile,
    },
  }
end

.parse_lockfile(file_contents, options: {}) ⇒ Object 



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# File 'lib/bibliothecary/parsers/cargo.rb', line 50

def self.parse_lockfile(file_contents, options: {})
  manifest = Tomlrb.parse(file_contents)
  dependencies = manifest.fetch("package", []).map do |dependency|
    next if !dependency["source"] || !dependency["source"].start_with?("registry+")

    Dependency.new(
      name: dependency["name"],
      requirement: dependency["version"],
      type: "runtime",
      source: options.fetch(:filename, nil),
      platform: platform_name
    )
  end
    .compact
  ParserResult.new(dependencies: dependencies)
end

.parse_manifest(file_contents, options: {}) ⇒ Object 



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# File 'lib/bibliothecary/parsers/cargo.rb', line 25

def self.parse_manifest(file_contents, options: {})
  manifest = Tomlrb.parse(file_contents)

  parsed_dependencies = []

  manifest.fetch_values("dependencies", "dev-dependencies").each_with_index do |deps, index|
    parsed_dependencies << deps.map do |name, requirement|
      if requirement.respond_to?(:fetch)
        requirement = requirement["version"] or next
      end

      Dependency.new(
        name: name,
        requirement: requirement,
        type: index.zero? ? "runtime" : "development",
        source: options.fetch(:filename, nil),
        platform: platform_name
      )
    end
  end

  dependencies = parsed_dependencies.flatten.compact
  ParserResult.new(dependencies: dependencies)
end