Class: Gel::Catalog::LegacyIndex

Inherits:
Object
  • Object
show all
Includes:
Common
Defined in:
lib/gel/catalog/legacy_index.rb

Constant Summary collapse

CACHE_TYPE = 
"quick"

Instance Method Summary collapse

Methods included from Common

#gem_info

Constructor Details

#initialize ⇒ LegacyIndex

Returns a new instance of LegacyIndex.



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# File 'lib/gel/catalog/legacy_index.rb', line 15

def initialize(*)
  super

  @needs_update = true
  @updating = false
  @active_gems = Set.new
  @pending_gems = Set.new

  @gem_versions = {}
end

Instance Method Details

#prepare(gems) ⇒ Object 



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# File 'lib/gel/catalog/legacy_index.rb', line 26

def prepare(gems)
  @monitor.synchronize do
    @pending_gems.merge(gems)
  end
  update
  @monitor.synchronize do
    @refresh_cond.wait_until { gems.all? { |g| _info(g) } }
  end
end

#refresh_gem(gem_name, immediate = true) ⇒ Object 



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# File 'lib/gel/catalog/legacy_index.rb', line 97

def refresh_gem(gem_name, immediate = true)
  update

  versions = nil
  @monitor.synchronize do
    if @updating
      @pending_gems << gem_name
      return
    end

    unless info = @gem_info[gem_name]
      @gem_info[gem_name] = {}
      @refresh_cond.broadcast
      return
    end

    versions = info.keys.select { |v| info[v].nil? }
    versions.each do |v|
      info[v] = :pending
    end
  end

  loaded_data = {}
  versions.each do |v|
    loaded_data[v] = nil
  end

  versions.each do |v|
    error = lambda do |ex|
      @gem_info[gem_name][v] = ex
      @refresh_cond.broadcast
    end

    pinboard.async_file(uri("quick", "Marshal.4.8", "#{gem_name}-#{v}.gemspec.rz"), token: false, tail: false, error: error) do |f|
      data = Zlib::Inflate.inflate(f.read)
      # TODO: Extract the data we need without a full unmarshal
      spec = Marshal.load(data)

      @monitor.synchronize do
        loaded_data[v] = { dependencies: spec.dependencies, ruby: spec.required_ruby_version }
        if loaded_data.values.all?
          @gem_info[gem_name].update loaded_data
          @refresh_cond.broadcast
        end
      end
    end
  end
end

#update ⇒ Object 



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# File 'lib/gel/catalog/legacy_index.rb', line 36

def update
  @monitor.synchronize do
    return false unless @needs_update
    @needs_update = false
    @updating = true
  end

  specs = false
  prerelease_specs = false

  versions = {}

  error = lambda do |ex|
    @monitor.synchronize do
      @error = ex
      @updating = false
      @refresh_cond.broadcast
    end
  end

  spec_file_handler = lambda do |for_prerelease|
    lambda do |f|
      data = Zlib::GzipReader.new(f).read
      data = Marshal.load(data)

      data.each do |name, version, platform|
        v = version.to_s
        v += "-#{platform}" unless platform == "ruby"
        (versions[name] ||= {})[v] = nil
      end

      done = false
      @monitor.synchronize do
        if for_prerelease
          prerelease_specs = true
        else
          specs = true
        end

        if specs && prerelease_specs
          done = true
          @gem_info.update versions
          @updating = false
          @refresh_cond.broadcast
        end
      end

      if done
        (@active_gems | @pending_gems).each do |name|
          refresh_gem(name)
        end
      end
    end
  end

  pinboard.async_file(uri("specs.4.8.gz"), tail: false, error: error, &spec_file_handler.(false))
  pinboard.async_file(uri("prerelease_specs.4.8.gz"), tail: false, error: error, &spec_file_handler.(true))

  true
end