class Bundler::LockfileParser

# File bundler/lockfile_parser.rb, line 60
def initialize(lockfile)
  @platforms    = []
  @sources      = []
  @dependencies = {}
  @state        = nil
  @specs        = {}

  @rubygems_aggregate = Source::Rubygems.new

  if lockfile.match(/<<<<<<<|=======|>>>>>>>|\|\|\|\|\|\|\|/)
    raise LockfileError, "Your #{Bundler.default_lockfile.relative_path_from(SharedHelpers.pwd)} contains merge conflicts.\n" \
      "Run `git checkout HEAD -- #{Bundler.default_lockfile.relative_path_from(SharedHelpers.pwd)}` first to get a clean lock."
  end

  lockfile.split(/(?:\r?\n)+/).each do |line|
    if SOURCE.include?(line)
      @state = :source
      parse_source(line)
    elsif line == DEPENDENCIES
      @state = :dependency
    elsif line == PLATFORMS
      @state = :platform
    elsif line == RUBY
      @state = :ruby
    elsif line == BUNDLED
      @state = :bundled_with
    elsif line =~ /^[^\s]/
      @state = nil
    elsif @state
      send("parse_#{@state}", line)
    end
  end
  @sources << @rubygems_aggregate unless Bundler.feature_flag.disable_multisource?
  @specs = @specs.values.sort_by(&:identifier)
  warn_for_outdated_bundler_version
rescue ArgumentError => e
  Bundler.ui.debug(e)
  raise LockfileError, "Your lockfile is unreadable. Run `rm #{Bundler.default_lockfile.relative_path_from(SharedHelpers.pwd)}` " \
    "and then `bundle install` to generate a new lockfile."
end

# File bundler/lockfile_parser.rb, line 41
def self.sections_in_lockfile(lockfile_contents)
  lockfile_contents.scan(/^\w[\w ]*$/).uniq
end

# File bundler/lockfile_parser.rb, line 49
def self.sections_to_ignore(base_version = nil)
  base_version &&= base_version.release
  base_version ||= Gem::Version.create("1.0".dup)
  attributes = []
  SECTIONS_BY_VERSION_INTRODUCED.each do |version, introduced|
    next if version <= base_version
    attributes += introduced
  end
  attributes
end

# File bundler/lockfile_parser.rb, line 45
def self.unknown_sections_in_lockfile(lockfile_contents)
  sections_in_lockfile(lockfile_contents) - KNOWN_SECTIONS
end

# File bundler/lockfile_parser.rb, line 101
def warn_for_outdated_bundler_version
  return unless bundler_version
  prerelease_text = bundler_version.prerelease? ? " --pre" : ""
  current_version = Gem::Version.create(Bundler::VERSION)
  return unless current_version < bundler_version
  Bundler.ui.warn "Warning: the running version of Bundler (#{current_version}) is older " \
       "than the version that created the lockfile (#{bundler_version}). We suggest you to " \
       "upgrade to the version that created the lockfile by running `gem install " \
       "bundler:#{bundler_version}#{prerelease_text}`.\n"
end