Class: Dependabot::Shared::SharedFileFetcher

Inherits:
FileFetchers::Base
  • Object
show all
Extended by:
T::Helpers, T::Sig
Defined in:
lib/dependabot/shared/shared_file_fetcher.rb

Direct Known Subclasses

Docker::FileFetcher

Constant Summary collapse

YAML_REGEXP = 
/^[^\.].*\.ya?ml$/i

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.filename_regex ⇒ Object 



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# File 'lib/dependabot/shared/shared_file_fetcher.rb', line 20

def self.filename_regex; end

.required_files_in?(filenames) ⇒ Boolean 



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# File 'lib/dependabot/shared/shared_file_fetcher.rb', line 23

def self.required_files_in?(filenames)
  filenames.any? { |f| f.match?(filename_regex) }
end

Instance Method Details

#correctly_encoded_yamlfiles ⇒ Object 



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# File 'lib/dependabot/shared/shared_file_fetcher.rb', line 34

def correctly_encoded_yamlfiles
  candidate_files = yamlfiles.select { |f| f.content&.valid_encoding? }
  candidate_files.select do |f|
    if f.type == "file" && Utils.likely_helm_chart?(f)
      true
    else
      # This doesn't handle multi-resource files, but it shouldn't matter, since the first resource
      # in a multi-resource file had better be a valid k8s resource
      content = YAML.safe_load(T.must(f.content), aliases: true)
      likely_kubernetes_resource?(content)
    end
  rescue ::Psych::Exception
    false
  end
end

#fetch_files ⇒ Object 



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# File 'lib/dependabot/shared/shared_file_fetcher.rb', line 28

def fetch_files
  fetched_files = []
  fetched_files + correctly_encoded_yamlfiles
end

#incorrectly_encoded_yamlfiles ⇒ Object 



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# File 'lib/dependabot/shared/shared_file_fetcher.rb', line 51

def incorrectly_encoded_yamlfiles
  yamlfiles.reject { |f| f.content&.valid_encoding? }
end

#raise_appropriate_error(incorrectly_encoded_files = []) ⇒ Object

Raises:

  • (Dependabot::DependencyFileNotParseable) 


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# File 'lib/dependabot/shared/shared_file_fetcher.rb', line 60

def raise_appropriate_error(
  incorrectly_encoded_files = []
)
  if incorrectly_encoded_files.none? && incorrectly_encoded_yamlfiles.none?
    raise Dependabot::DependencyFileNotFound.new(
      File.join(directory, "Dockerfile"),
      "No Dockerfiles nor Kubernetes YAML found in #{directory}"
    )
  end

  invalid_files = incorrectly_encoded_files.any? ? incorrectly_encoded_files : incorrectly_encoded_yamlfiles
  raise Dependabot::DependencyFileNotParseable, T.must(invalid_files.first).path
end

#yamlfiles ⇒ Object 



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# File 'lib/dependabot/shared/shared_file_fetcher.rb', line 75

def yamlfiles
  @yamlfiles ||= T.let(
    repo_contents(raise_errors: false)
      .select { |f| f.type == "file" && f.name.match?(YAML_REGEXP) }
      .map do |f|
        fetched = fetch_file_from_host(f.name)
        # The YAML parser used doesn't properly handle a byte-order-mark (BOM) and it can cause failures in
        # unexpected ways.  That BOM is removed here to allow regular updates to proceed.
        fetched.content = T.must(fetched.content)[1..-1] if fetched.content&.start_with?("\uFEFF")
        fetched
      end,
    T.nilable(T::Array[DependencyFile])
  )
end