class LibyearBundler::Models::Gem

Logic and information pertaining to the installed and newest versions of a gem

Public Class Methods

new(name, installed_version, newest_version, release_date_cache) click to toggle source
# File lib/libyear_bundler/models/gem.rb, line 10
def initialize(name, installed_version, newest_version, release_date_cache)
  unless release_date_cache.nil? || release_date_cache.is_a?(ReleaseDateCache)
    raise TypeError, 'Invalid release_date_cache'
  end
  @name = name
  @installed_version = installed_version
  @newest_version = newest_version
  @release_date_cache = release_date_cache
end
release_date(gem_name, gem_version) click to toggle source
# File lib/libyear_bundler/models/gem.rb, line 21
def release_date(gem_name, gem_version)
  dep = nil
  begin
    dep = ::Bundler::Dependency.new(gem_name, gem_version)
  rescue ::Gem::Requirement::BadRequirementError => e
    $stderr.puts "Could not find release date for: #{gem_name}"
    $stderr.puts(e)
    $stderr.puts(
      "Maybe you used git in your Gemfile, which libyear doesn't support " \
      "yet. Contributions welcome."
    )
    return nil
  end
  tuples, _errors = ::Gem::SpecFetcher.fetcher.search_for_dependency(dep)
  if tuples.empty?
    $stderr.puts "Could not find release date for: #{gem_name}"
    return nil
  end
  tup, source = tuples.first # Gem::NameTuple
  spec = source.fetch_spec(tup) # raises Gem::RemoteFetcher::FetchError
  spec.date.to_date
end

Public Instance Methods

installed_version() click to toggle source
# File lib/libyear_bundler/models/gem.rb, line 45
def installed_version
  ::Gem::Version.new(@installed_version)
end
installed_version_release_date() click to toggle source
# File lib/libyear_bundler/models/gem.rb, line 49
def installed_version_release_date
  if @release_date_cache.nil?
    self.class.release_date(name, installed_version)
  else
    @release_date_cache[name, installed_version]
  end
end
installed_version_sequence_index() click to toggle source
# File lib/libyear_bundler/models/gem.rb, line 57
def installed_version_sequence_index
  versions_sequence.index(installed_version.to_s)
end
libyears() click to toggle source
# File lib/libyear_bundler/models/gem.rb, line 61
def libyears
  ::LibyearBundler::Calculators::Libyear.calculate(
    installed_version_release_date,
    newest_version_release_date
  )
end
name() click to toggle source
# File lib/libyear_bundler/models/gem.rb, line 68
def name
  @name
end
newest_version() click to toggle source
# File lib/libyear_bundler/models/gem.rb, line 72
def newest_version
  ::Gem::Version.new(@newest_version)
end
newest_version_release_date() click to toggle source
# File lib/libyear_bundler/models/gem.rb, line 80
def newest_version_release_date
  if @release_date_cache.nil?
    self.class.release_date(name, newest_version)
  else
    @release_date_cache[name, newest_version]
  end
end
newest_version_sequence_index() click to toggle source
# File lib/libyear_bundler/models/gem.rb, line 76
def newest_version_sequence_index
  versions_sequence.index(newest_version.to_s)
end
version_number_delta() click to toggle source
# File lib/libyear_bundler/models/gem.rb, line 88
def version_number_delta
  ::LibyearBundler::Calculators::VersionNumberDelta.calculate(
    installed_version,
    newest_version
  )
end
version_sequence_delta() click to toggle source
# File lib/libyear_bundler/models/gem.rb, line 95
def version_sequence_delta
  ::LibyearBundler::Calculators::VersionSequenceDelta.calculate(
    installed_version_sequence_index,
    newest_version_sequence_index
  )
end

Private Instance Methods

versions_sequence() click to toggle source

docs: guides.rubygems.org/rubygems-org-api/#gem-version-methods Versions are returned ordered by version number, descending

# File lib/libyear_bundler/models/gem.rb, line 106
def versions_sequence
  @_versions_sequence ||= begin
    uri = URI.parse("https://rubygems.org/api/v1/versions/#{name}.json")
    response = Net::HTTP.get_response(uri)
    parsed_response = JSON.parse(response.body)
    parsed_response.map { |version| version['number'] }
  end
end