Class Cache < Object

# File ../ruby/lib/rubygems/source_index.rb, line 66
def self.from_gems_in(*spec_dirs)
  new spec_dirs
end

# File ../ruby/lib/rubygems/source_index.rb, line 45
def self.from_installed_gems(*deprecated)
  if deprecated.empty?
    from_gems_in(*installed_spec_directories)
  else
    warn "NOTE: from_installed_gems(arg) is deprecated. From #{caller.first}"
    from_gems_in(*deprecated) # HACK warn
  end
end

# File ../ruby/lib/rubygems/source_index.rb, line 57
def self.installed_spec_directories
  # TODO: move to Gem::Utils
  Gem.path.collect { |dir| File.join(dir, "specifications") }
end

# File ../ruby/lib/rubygems/source_index.rb, line 74
def self.load_specification(file_name)
  Gem::Deprecate.skip_during do
    Gem::Specification.load Gem::Path.new(file_name)
  end
end

# File ../ruby/lib/rubygems/source_index.rb, line 84
def initialize specs_or_dirs = []
  @gems = {}
  @spec_dirs = nil

  case specs_or_dirs
  when Hash then
    specs_or_dirs.each do |full_name, spec|
      add_spec spec
    end
  when Array, String then
    self.spec_dirs = Array(specs_or_dirs)
    refresh!
  else
    arg = specs_or_dirs.inspect
    warn "NOTE: SourceIndex.new(#{arg}) is deprecated; From #{caller.first}."
  end
end

# File ../ruby/lib/rubygems/source_index.rb, line 186
def add_spec(gem_spec, name = gem_spec.full_name)
  # No idea why, but the Indexer wants to insert them using original_name
  # instead of full_name. So we make it an optional arg.
  @gems[name] = gem_spec
end

# File ../ruby/lib/rubygems/source_index.rb, line 195
def add_specs(*gem_specs)
  Gem::Deprecate.skip_during do
    gem_specs.each do |spec|
      add_spec spec
    end
  end
end

# File ../ruby/lib/rubygems/source_index.rb, line 102
def all_gems
  gems
end

# File ../ruby/lib/rubygems/source_index.rb, line 350
def dump
  Marshal.dump(self)
end

# File ../ruby/lib/rubygems/source_index.rb, line 213
def each(&block) # :yields: gem.full_name, gem
  @gems.each(&block)
end

# File ../ruby/lib/rubygems/source_index.rb, line 251
def find_name(gem_name, requirement = Gem::Requirement.default)
  dep = Gem::Dependency.new gem_name, requirement

  Gem::Deprecate.skip_during do
    search dep
  end
end

# File ../ruby/lib/rubygems/source_index.rb, line 237
def gem_signature(gem_full_name)
  require 'digest'

  Digest::SHA256.new.hexdigest(@gems[gem_full_name].to_yaml).to_s
end

# File ../ruby/lib/rubygems/source_index.rb, line 228
def index_signature
  require 'digest'

  Digest::SHA256.new.hexdigest(@gems.keys.sort.join(',')).to_s
end

# File ../ruby/lib/rubygems/source_index.rb, line 138
def latest_specs(include_prerelease=false)
  result = Hash.new { |h,k| h[k] = [] }
  latest = {}

  sort.each do |_, spec|
    name = spec.name
    curr_ver = spec.version
    prev_ver = latest.key?(name) ? latest[name].version : nil

    next if !include_prerelease && curr_ver.prerelease?
    next unless prev_ver.nil? or curr_ver >= prev_ver or
                latest[name].platform != Gem::Platform::RUBY

    if prev_ver.nil? or
       (curr_ver > prev_ver and spec.platform == Gem::Platform::RUBY) then
      result[name].clear
      latest[name] = spec
    end

    if spec.platform != Gem::Platform::RUBY then
      result[name].delete_if do |result_spec|
        result_spec.platform == spec.platform
      end
    end

    result[name] << spec
  end

  result.values.flatten
end

# File ../ruby/lib/rubygems/source_index.rb, line 117
def load_gems_in(*spec_dirs)
  @gems.clear

  spec_dirs.reverse_each do |spec_dir|
    spec_files = Dir[File.join(spec_dir, "*.gemspec")]

    spec_files.each do |spec_file|
      gemspec = Gem::Deprecate.skip_during do
        Gem::Specification.load spec_file
      end
      add_spec gemspec if gemspec
    end
  end

  self
end

# File ../ruby/lib/rubygems/source_index.rb, line 328
def outdated
  outdateds = []

  latest_specs.each do |local|
    dependency = Gem::Dependency.new local.name, ">= #{local.version}"

    fetcher = Gem::SpecFetcher.fetcher
    remotes = fetcher.find_matching dependency
    remotes = remotes.map { |(_, version, _), _| version }

    latest = remotes.sort.last

    outdateds << local.name if latest and local.version < latest
  end

  outdateds
end

# File ../ruby/lib/rubygems/source_index.rb, line 106
def prerelease_gems
  @gems.reject { |name, gem| !gem.version.prerelease? }
end

# File ../ruby/lib/rubygems/source_index.rb, line 172
def prerelease_specs
  prerelease_gems.values
end

# File ../ruby/lib/rubygems/source_index.rb, line 320
def refresh!
  raise 'source index not created from disk' if @spec_dirs.nil?
  load_gems_in(*@spec_dirs)
end

# File ../ruby/lib/rubygems/source_index.rb, line 110
def released_gems
  @gems.reject { |name, gem| gem.version.prerelease? }
end

# File ../ruby/lib/rubygems/source_index.rb, line 179
def released_specs
  released_gems.values
end

# File ../ruby/lib/rubygems/source_index.rb, line 206
def remove_spec(full_name)
  @gems.delete full_name
end

# File ../ruby/lib/rubygems/source_index.rb, line 268
def search(gem_pattern, platform_or_requirement = false)
  requirement = nil
  only_platform = false # FIX: WTF is this?!?

  # TODO - Remove support and warning for legacy arguments after 2008/11
  unless Gem::Dependency === gem_pattern
    warn "#{Gem.location_of_caller.join ':'}:Warning: Gem::SourceIndex#search support for #{gem_pattern.class} patterns is deprecated, use #find_name"
  end

  case gem_pattern
  when Regexp then
    requirement = platform_or_requirement || Gem::Requirement.default
  when Gem::Dependency then
    only_platform = platform_or_requirement
    requirement = gem_pattern.requirement

    gem_pattern = if Regexp === gem_pattern.name then
                    gem_pattern.name
                  elsif gem_pattern.name.empty? then
                    //
                  else
                    /^#{Regexp.escape gem_pattern.name}$/
                  end
  else
    requirement = platform_or_requirement || Gem::Requirement.default
    gem_pattern = /#{gem_pattern}/i
  end

  unless Gem::Requirement === requirement then
    requirement = Gem::Requirement.create requirement
  end

  specs = @gems.values.select do |spec|
    spec.name =~ gem_pattern and
      requirement.satisfied_by? spec.version
  end

  if only_platform then
    specs = specs.select do |spec|
      Gem::Platform.match spec.platform
    end
  end

  specs.sort_by { |s| s.sort_obj }
end

# File ../ruby/lib/rubygems/source_index.rb, line 243
def size
  @gems.size
end

# File ../ruby/lib/rubygems/source_index.rb, line 220
def specification(full_name)
  @gems[full_name]
end