Class: GemUpdater

Inherits:
Object
  • Object
show all
Includes:
YARD::Server
Defined in:
lib/gem_updater.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(app, name, version, platform = 'ruby') ⇒ GemUpdater

Returns a new instance of GemUpdater.



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# File 'lib/gem_updater.rb', line 112

def initialize(app, name, version, platform='ruby')
  self.settings = app.settings
  self.app = app
  self.gem = GemVersion.new(name, version, platform)
end

Instance Attribute Details

#app ⇒ Object

Returns the value of attribute app.



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# File 'lib/gem_updater.rb', line 22

def app
  @app
end

#gem ⇒ Object

Returns the value of attribute gem.



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# File 'lib/gem_updater.rb', line 22

def gem
  @gem
end

#settings ⇒ Object

Returns the value of attribute settings.



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# File 'lib/gem_updater.rb', line 22

def settings
  @settings
end

Class Method Details

.fetch_remote_gems ⇒ Object 



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# File 'lib/gem_updater.rb', line 25

def fetch_remote_gems
  spec_fetcher = if $CONFIG.gem_source
    Gem::SpecFetcher.new(Gem::SourceList.from([Gem::Source.new($CONFIG.gem_source)]))
  else
    Gem::SpecFetcher.fetcher
  end

  libs = {}
  if Gem::VERSION < '2.0'
    spec_fetcher.list(true).values.flatten(1).each do |info|
      (libs[info[0]] ||= []) << GemVersion.new(*info)
    end
  else # RubyGems 2.x API
    spec_fetcher.available_specs(:released).first.values.flatten(1).each do |tuple|
      (libs[tuple.name] ||= []) << GemVersion.new(tuple.name, tuple.version, tuple.platform)
    end
  end

  libs
end

.flush_cache(changed_gems) ⇒ Object 



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# File 'lib/gem_updater.rb', line 99

def flush_cache(changed_gems)
  index_map = {}
  changed_gems.keys.each do |gem_name|
    index_map[gem_name[0, 1]] = true
  end
  Cache.invalidate("/gems", *index_map.keys.map {|k| "/gems/~#{k}" })

  changed_gems.keys.each_slice(50) do |list|
    Cache.invalidate(*list.map {|k| "/gems/#{k}" })
  end
end

.pick_best_versions(versions) ⇒ Object 



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# File 'lib/gem_updater.rb', line 89

def pick_best_versions(versions)
  seen = {}
  uniqversions = []
  versions.each do |ver|
    uniqversions |= [ver.version]
    (seen[ver.version] ||= []).send(ver.platform == "ruby" ? :unshift : :push, ver)
  end
  uniqversions.map {|v| seen[v].first.to_s }
end

.update_remote_gems(display: false) ⇒ Object 



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# File 'lib/gem_updater.rb', line 46

def update_remote_gems(display: false)
  puts ">> Updating remote RubyGems..." if display
  libs = fetch_remote_gems
  store = GemStore.new
  changed_gems = {}
  removed_gems = []
  RemoteGem.all.each do |row|
    changed_gems[row.name] = row.versions.split(' ')
  end

  RemoteGem.db.transaction do
    libs.each do |name, versions|
      versions = pick_best_versions(versions)
      if changed_gems[name] && changed_gems[name].size == versions.size
        changed_gems.delete(name)
      elsif changed_gems[name]
        store[name] = versions
      else
        RemoteGem.create(name: name,
          versions: VersionSorter.sort(versions).join(" "))
      end
    end
  end

  flush_cache(changed_gems)

  result = [changed_gems, removed_gems]

  if display
    if changed_gems.size > 0
      puts ">> Updated #{changed_gems.size} gems:"
      puts changed_gems.keys.join(', ')
    end

    if removed_gems.size > 0
      puts ">> Removed #{removed_gems.size} gems:"
      puts removed_gems.join(', ')
    end
  end

  result
end

Instance Method Details

#flush_cache ⇒ Object

TODO: improve this cache invalidation to be version specific



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# File 'lib/gem_updater.rb', line 126

def flush_cache
  self.class.flush_cache(gem.name)
end

#register ⇒ Object 



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# File 'lib/gem_updater.rb', line 118

def register
  puts "Registering gem #{gem.name}-#{gem.version}"
  store = GemStore.new
  libs = (store[gem.name] || []).map {|v| v.version }
  store[gem.name] = libs | [gem.version]
end