123456789_123456789_123456789_123456789_123456789_

Class: Bundler::CompactIndexClient

Constant Summary

Class Method Summary

Instance Attribute Summary

Instance Method Summary

Constructor Details

.new(directory, fetcher) ⇒ CompactIndexClient

[ GitHub ]

  
# File 'lib/bundler/compact_index_client.rb', line 21

def initialize(directory, fetcher)
  @directory = Pathname.new(directory)
  @updater = Updater.new(fetcher)
  @cache = Cache.new(@directory)
  @endpoints = Set.new
  @info_checksums_by_name = {}
  @parsed_checksums = false
  @mutex = Thread::Mutex.new
end

Class Method Details

.debug

[ GitHub ]

  
# File 'lib/bundler/compact_index_client.rb', line 9

def self.debug
  return unless ENV["DEBUG_COMPACT_INDEX"]
  DEBUG_MUTEX.synchronize { warn("[#{self}] #{yield}") }
end

Instance Attribute Details

#directory (readonly)

[ GitHub ]

  
# File 'lib/bundler/compact_index_client.rb', line 19

attr_reader :directory

#execution_modeLambda (rw)

Returns:

  • (Lambda)

    A lambda that takes an array of inputs and a block, and maps the inputs with the block in parallel.

[ GitHub ]

  
# File 'lib/bundler/compact_index_client.rb', line 41

def execution_mode
  @execution_mode || sequentially
end

#execution_mode=(block) (rw)

[ GitHub ]

  
# File 'lib/bundler/compact_index_client.rb', line 31

def execution_mode=(block)
  Bundler::CompactIndexClient.debug { "execution_mode=" }
  @endpoints = Set.new

  @execution_mode = block
end

Instance Method Details

#dependencies(names)

[ GitHub ]

  
# File 'lib/bundler/compact_index_client.rb', line 68

def dependencies(names)
  Bundler::CompactIndexClient.debug { "dependencies(#{names})" }
  execution_mode.call(names) do |name|
    update_info(name)
    @cache.dependencies(name).map {|d| d.unshift(name) }
  end.flatten(1)
end

#names

[ GitHub ]

  
# File 'lib/bundler/compact_index_client.rb', line 55

def names
  Bundler::CompactIndexClient.debug { "/names" }
  update(@cache.names_path, "names")
  @cache.names
end

#sequential_execution_mode!

[ GitHub ]

  
# File 'lib/bundler/compact_index_client.rb', line 45

def sequential_execution_mode!
  self.execution_mode = sequentially
end

#sequentially

[ GitHub ]

  
# File 'lib/bundler/compact_index_client.rb', line 49

def sequentially
  @sequentially ||= lambda do |inputs, &blk|
    inputs.map(&blk)
  end
end

#spec(name, version, platform = nil)

[ GitHub ]

  
# File 'lib/bundler/compact_index_client.rb', line 76

def spec(name, version, platform = nil)
  Bundler::CompactIndexClient.debug { "spec(name = #{name}, version = #{version}, platform = #{platform})" }
  update_info(name)
  @cache.specific_dependency(name, version, platform)
end

#synchronize (private)

[ GitHub ]

  
# File 'lib/bundler/compact_index_client.rb', line 121

def synchronize
  @mutex.synchronize { yield }
end

#update(local_path, remote_path) (private)

[ GitHub ]

  
# File 'lib/bundler/compact_index_client.rb', line 92

def update(local_path, remote_path)
  Bundler::CompactIndexClient.debug { "update(#{local_path}, #{remote_path})" }
  unless synchronize { @endpoints.add?(remote_path) }
    Bundler::CompactIndexClient.debug { "already fetched #{remote_path}" }
    return
  end
  @updater.update(local_path, url(remote_path))
end

#update_and_parse_checksums!

[ GitHub ]

  
# File 'lib/bundler/compact_index_client.rb', line 82

def update_and_parse_checksums!
  Bundler::CompactIndexClient.debug { "update_and_parse_checksums!" }
  return @info_checksums_by_name if @parsed_checksums
  update(@cache.versions_path, "versions")
  @info_checksums_by_name = @cache.checksums
  @parsed_checksums = true
end

#update_info(name) (private)

[ GitHub ]

  
# File 'lib/bundler/compact_index_client.rb', line 101

def update_info(name)
  Bundler::CompactIndexClient.debug { "update_info(#{name})" }
  path = @cache.info_path(name)
  checksum = @updater.checksum_for_file(path)
  unless existing = @info_checksums_by_name[name]
    Bundler::CompactIndexClient.debug { "skipping updating info for #{name} since it is missing from versions" }
    return
  end
  if checksum == existing
    Bundler::CompactIndexClient.debug { "skipping updating info for #{name} since the versions checksum matches the local checksum" }
    return
  end
  Bundler::CompactIndexClient.debug { "updating info for #{name} since the versions checksum #{existing} != the local checksum #{checksum}" }
  update(path, "info/#{name}")
end

#url(path) (private)

[ GitHub ]

  
# File 'lib/bundler/compact_index_client.rb', line 117

def url(path)
  path
end

#versions

[ GitHub ]

  
# File 'lib/bundler/compact_index_client.rb', line 61

def versions
  Bundler::CompactIndexClient.debug { "/versions" }
  update(@cache.versions_path, "versions")
  versions, @info_checksums_by_name = @cache.versions
  versions
end