# class Bundler::LockfileParser

### Constants

BUNDLED
DEPENDENCIES
ENVIRONMENT_VERSION_SECTIONS
GEM
GIT
KNOWN_SECTIONS
NAME_VERSION
OPTIONS
PATH
PLATFORMS
PLUGIN
RUBY
SECTIONS_BY_VERSION_INTRODUCED
SOURCE
SPECS
TYPES

### Attributes

bundler_version[R]
dependencies[R]
platforms[R]
ruby_version[R]
sources[R]
specs[R]

### Public Class Methods

new(lockfile) click to toggle source

    # File lib/bundler/lockfile_parser.rb, line 61
    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.lockfile_uses_separate_rubygems_sources?
      @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

sections_in_lockfile(lockfile_contents) click to toggle source

    # File lib/bundler/lockfile_parser.rb, line 42
    def self.sections_in_lockfile(lockfile_contents)
      lockfile_contents.scan(/^\w[\w ]*$/).uniq
    end

sections_to_ignore(base_version = nil) click to toggle source

    # File lib/bundler/lockfile_parser.rb, line 50
    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

unknown_sections_in_lockfile(lockfile_contents) click to toggle source

    # File lib/bundler/lockfile_parser.rb, line 46
    def self.unknown_sections_in_lockfile(lockfile_contents)
      sections_in_lockfile(lockfile_contents) - KNOWN_SECTIONS
    end

### Public Instance Methods

warn_for_outdated_bundler_version() click to toggle source

    # File lib/bundler/lockfile_parser.rb, line 102
    def warn_for_outdated_bundler_version
      return unless bundler_version
      prerelease_text = bundler_version.prerelease? ? " --pre" : ""
      current_version = Gem::Version.create(Bundler::VERSION)
      case current_version.segments.first <=> bundler_version.segments.first
      when -1
        raise LockfileError, "You must use Bundler #{bundler_version.segments.first} or greater with this lockfile."
      when 0
        if 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 " \
               "upgrade to the latest version of Bundler by running `gem " \
               "install bundler#{prerelease_text}`.\n"
        end
      end
    end

### Private Instance Methods

parse_bundled_with(line) click to toggle source

    # File lib/bundler/lockfile_parser.rb, line 246
    def parse_bundled_with(line)
      line = line.strip
      return unless Gem::Version.correct?(line)
      @bundler_version = Gem::Version.create(line)
    end

parse_dependency(line) click to toggle source

    # File lib/bundler/lockfile_parser.rb, line 190
    def parse_dependency(line)
      return unless line =~ NAME_VERSION
      spaces = $1
      return unless spaces.size == 2
      name = $2
      version = $3
      pinned = $5

      version = version.split(",").map(&:strip) if version

      dep = Bundler::Dependency.new(name, version)

      if pinned && dep.name != "bundler"
        spec = @specs.find {|_, v| v.name == dep.name }
        dep.source = spec.last.source if spec

        # Path sources need to know what the default name / version
        # to use in the case that there are no gemspecs present. A fake
        # gemspec is created based on the version set on the dependency
        # TODO: Use the version from the spec instead of from the dependency
        if version && version.size == 1 && version.first =~ /^\s*= (.+)\s*$/ && dep.source.is_a?(Bundler::Source::Path)
          dep.source.name    = name
          dep.source.version = $1
        end
      end

      @dependencies[dep.name] = dep
    end

parse_platform(line) click to toggle source

    # File lib/bundler/lockfile_parser.rb, line 242
    def parse_platform(line)
      @platforms << Gem::Platform.new($1) if line =~ /^  (.*)$/
    end

parse_ruby(line) click to toggle source

    # File lib/bundler/lockfile_parser.rb, line 252
    def parse_ruby(line)
      @ruby_version = line.strip
    end

parse_source(line) click to toggle source

    # File lib/bundler/lockfile_parser.rb, line 128
    def parse_source(line)
      case line
      when SPECS
        case @type
        when PATH
          @current_source = TYPES[@type].from_lock(@opts)
          @sources << @current_source
        when GIT
          @current_source = TYPES[@type].from_lock(@opts)
          # Strip out duplicate GIT sections
          if @sources.include?(@current_source)
            @current_source = @sources.find {|s| s == @current_source }
          else
            @sources << @current_source
          end
        when GEM
          if Bundler.feature_flag.lockfile_uses_separate_rubygems_sources?
            @opts["remotes"] = @opts.delete("remote")
            @current_source = TYPES[@type].from_lock(@opts)
            @sources << @current_source
          else
            Array(@opts["remote"]).each do |url|
              @rubygems_aggregate.add_remote(url)
            end
            @current_source = @rubygems_aggregate
          end
        when PLUGIN
          @current_source = Plugin.source_from_lock(@opts)
          @sources << @current_source
        end
      when OPTIONS
        value = $2
        value = true if value == "true"
        value = false if value == "false"

        key = $1

        if @opts[key]
          @opts[key] = Array(@opts[key])
          @opts[key] << value
        else
          @opts[key] = value
        end
      when *SOURCE
        @current_source = nil
        @opts = {}
        @type = line
      else
        parse_spec(line)
      end
    end

parse_spec(line) click to toggle source

    # File lib/bundler/lockfile_parser.rb, line 219
    def parse_spec(line)
      return unless line =~ NAME_VERSION
      spaces = $1
      name = $2
      version = $3
      platform = $4

      if spaces.size == 4
        version = Gem::Version.new(version)
        platform = platform ? Gem::Platform.new(platform) : Gem::Platform::RUBY
        @current_spec = LazySpecification.new(name, version, platform)
        @current_spec.source = @current_source

        # Avoid introducing multiple copies of the same spec (caused by
        # duplicate GIT sections)
        @specs[@current_spec.identifier] ||= @current_spec
      elsif spaces.size == 6
        version = version.split(",").map(&:strip) if version
        dep = Gem::Dependency.new(name, version)
        @current_spec.dependencies << dep
      end
    end