Contents

# frozen_string_literal: true

module Spandx
  class Index
    DEFAULT_DIR = File.expand_path(File.join(Dir.home, '.local', 'share', 'spandx'))
    attr_reader :directory

    def initialize(directory: DEFAULT_DIR)
      @directory = directory ? File.expand_path(directory) : DEFAULT_DIR
    end

    def indexed?(key)
      File.exist?(data_file_for(digest_for(key)))
    end

    def read(key)
      open_data(digest_for(key), mode: 'r', &:read)
    end

    def write(key, data)
      return if data.nil? || data.empty?

      open_data(digest_for(key)) do |x|
        x.write(data)
      end
    end

    private

    def digest_for(components)
      Digest::SHA1.hexdigest(Array(components).join('/'))
    end

    def open_data(key, mode: 'w')
      FileUtils.mkdir_p(data_dir_for(key))
      File.open(data_file_for(key), mode) do |file|
        yield file
      end
    end

    def data_dir_for(index_key)
      File.join(directory, *index_key.scan(/../))
    end

    def data_file_for(key)
      File.join(data_dir_for(key), 'data')
    end
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
spandx-0.5.0	lib/spandx/index.rb
spandx-0.4.1	lib/spandx/index.rb
spandx-0.4.0	lib/spandx/index.rb