Class: Pod::CDNSource

Inherits:
Source
  • Object
show all
Defined in:
lib/cocoapods-core/cdn_source.rb

Overview

Subclass of Pod::Source to provide support for CDN-based Specs repositories

Direct Known Subclasses

TrunkSource

Constant Summary collapse

MAX_CDN_NETWORK_THREADS = 
(ENV['MAX_CDN_NETWORK_THREADS'] || 50).to_i
MAX_NUMBER_OF_RETRIES = 
(ENV['COCOAPODS_CDN_MAX_NUMBER_OF_RETRIES'] || 5).to_i

Constants inherited from Source

Source::DEFAULT_SPECS_BRANCH

Instance Attribute Summary

Attributes inherited from Source

#metadata, #repo

Querying the source collapse

Searching the source collapse

Instance Method Summary collapse

Methods inherited from Source

#<=>, #fuzzy_search, #inspect, #metadata_path, #name, #pod_path, #pods_for_specification_paths, #set, #specification, #to_hash, #to_yaml, #verify_compatibility!

Constructor Details

#initialize(repo) ⇒ CDNSource

Returns a new instance of CDNSource.

Parameters:

  • repo (String) —

    The name of the repository



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# File 'lib/cocoapods-core/cdn_source.rb', line 14

def initialize(repo)
  @check_existing_files_for_update = false
  # Optimization: we initialize startup_time when the source is first initialized
  # and then test file modification dates against it. Any file that was touched
  # after the source was initialized, is considered fresh enough.
  @startup_time = Time.new

  @executor = Concurrent::ThreadPoolExecutor.new(
    :min_threads => 5,
    :max_threads => MAX_CDN_NETWORK_THREADS,
    :max_queue => 0 # unbounded work queue
  )

  @version_arrays_by_fragment_by_name = {}

  super(repo)
end

Instance Method Details

#all_specs ⇒ Array<Specification>

Returns all the specifications contained by the source.

Returns:

  • (Array<Specification>) —

    all the specifications contained by the source.

Raises:



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# File 'lib/cocoapods-core/cdn_source.rb', line 173

def all_specs
  raise Informative, "Can't retrieve all the specs for a CDN-backed source, it will take forever"
end

#deprecated_local_podspecs ⇒ Object 



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# File 'lib/cocoapods-core/cdn_source.rb', line 76

def deprecated_local_podspecs
  download_file('deprecated_podspecs.txt')
  local_file('deprecated_podspecs.txt', &:to_a).
    map { |f| Pathname.new(f.chomp) }.
    select { |f| repo.join(f).exist? }
end

#files_definitely_to_update ⇒ Object 



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# File 'lib/cocoapods-core/cdn_source.rb', line 72

def files_definitely_to_update
  Pathname.glob(repo.join('**/*.{txt,yml}')).map { |f| f.relative_path_from(repo).to_s }
end

#git? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cocoapods-core/cdn_source.rb', line 264

def git?
  false
end

#indexable? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cocoapods-core/cdn_source.rb', line 268

def indexable?
  false
end

#pod_sets ⇒ Array<Sets>

Returns the sets of all the Pods.

Returns:

  • (Array<Sets>) —

    the sets of all the Pods.

Raises:



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# File 'lib/cocoapods-core/cdn_source.rb', line 179

def pod_sets
  raise Informative, "Can't retrieve all the pod sets for a CDN-backed source, it will take forever"
end

#pods ⇒ Array<String>

Returns the list of the name of all the Pods.

Returns:

  • (Array<String>) —

    the list of the name of all the Pods.



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# File 'lib/cocoapods-core/cdn_source.rb', line 94

def pods
  download_file('all_pods.txt')
  local_file('all_pods.txt', &:to_a).map(&:chomp)
end

#preheat_existing_files ⇒ Object 



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# File 'lib/cocoapods-core/cdn_source.rb', line 58

def preheat_existing_files
  files_to_update = files_definitely_to_update + deprecated_local_podspecs - ['deprecated_podspecs.txt']
  debug "CDN: #{name} Going to update #{files_to_update.count} files"
  loaders = files_to_update.map do |file|
    Concurrent::Promises.future_on(@executor) do
      download_file(file)
    end
  end

  catching_concurrent_errors do
    Concurrent::Promises.zip(*loaders).wait!
  end
end

#refresh_metadata ⇒ Object 



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# File 'lib/cocoapods-core/cdn_source.rb', line 44

def refresh_metadata
  if metadata.nil?
    unless repo.exist?
      debug "CDN: Repo #{name} does not exist!"
      return
    end

    specs_dir.mkpath
    download_file('CocoaPods-version.yml')
  end

  super
end

#search(query) ⇒ Set

TODO:

Rename to #load_set

Note:

This method is optimized for fast lookups by name, i.e. it does not require iterating through #pod_sets

Returns a set for a given dependency. The set is identified by the name of the dependency and takes into account subspecs.

Returns:

  • (Set) —

    a set for a given dependency. The set is identified by the name of the dependency and takes into account subspecs.



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# File 'lib/cocoapods-core/cdn_source.rb', line 194

def search(query)
  unless specs_dir
    raise Informative, "Unable to find a source named: `#{name}`"
  end
  if query.is_a?(Dependency)
    query = query.root_name
  end

  fragment = pod_shard_fragment(query)

  ensure_versions_file_loaded(fragment)

  version_arrays_by_name = @version_arrays_by_fragment_by_name[fragment] || {}

  found = version_arrays_by_name[query].nil? ? nil : query

  if found
    set = set(query)
    set if set.specification_name == query
  end
end

#search_by_name(query, full_text_search = false) ⇒ Array<Set>

Note:

full text search requires to load the specification for each pod, and therefore not supported.

Returns The list of the sets that contain the search term.

Parameters:

  • query (String) —

    the search term. Can be a regular expression.

  • full_text_search (Bool) (defaults to: false) —

    performed using Algolia

Returns:

  • (Array<Set>) —

    The list of the sets that contain the search term.



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# File 'lib/cocoapods-core/cdn_source.rb', line 227

def search_by_name(query, full_text_search = false)
  if full_text_search
    require 'algoliasearch'
    begin
      algolia_result = algolia_search_index.search(query, :attributesToRetrieve => 'name')
      names = algolia_result['hits'].map { |r| r['name'] }
      names.map { |n| set(n) }.reject { |s| s.versions.compact.empty? }
    rescue Algolia::AlgoliaError => e
      raise Informative, "CDN: #{name} - Cannot perform full-text search because Algolia returned an error: #{e}"
    end
  else
    super(query)
  end
end

#specification_path(name, version) ⇒ Pathname

Returns the path of the specification with the given name and version.

Parameters:

  • name (String) —

    the name of the Pod.

  • version (Version, String) —

    the version for the specification.

Returns:

  • (Pathname) —

    The path of the specification.

Raises:

  • (ArgumentError) 


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# File 'lib/cocoapods-core/cdn_source.rb', line 156

def specification_path(name, version)
  raise ArgumentError, 'No name' unless name
  raise ArgumentError, 'No version' unless version
  unless versions(name).include?(Version.new(version))
    raise StandardError, "Unable to find the specification #{name} " \
      "(#{version}) in the #{self.name} source."
  end

  podspec_version_path_relative = Pathname.new(version.to_s).join("#{name}.podspec.json")
  relative_podspec = relative_pod_path(name).join(podspec_version_path_relative).to_s
  download_file(relative_podspec)
  pod_path(name).join(podspec_version_path_relative)
end

#specs_dir ⇒ Pathname

Returns The directory where the specs are stored.

Returns:

  • (Pathname) —

    The directory where the specs are stored.



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# File 'lib/cocoapods-core/cdn_source.rb', line 85

def specs_dir
  @specs_dir ||= repo + 'Specs'
end

#type ⇒ String

Returns The type of the source.

Returns:

  • (String) —

    The type of the source.



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# File 'lib/cocoapods-core/cdn_source.rb', line 40

def type
  'CDN'
end

#update(_show_output) ⇒ Array<String>

Check update dates for all existing files. Does not download non-existing specs, since CDN-backed repo is updated live.

Parameters:

  • show_output (Bool)

Returns:

  • (Array<String>) —

    Always returns empty array, as it cannot know everything that actually changed.



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# File 'lib/cocoapods-core/cdn_source.rb', line 250

def update(_show_output)
  @check_existing_files_for_update = true
  begin
    preheat_existing_files
  ensure
    @check_existing_files_for_update = false
  end
  []
end

#updateable? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/cocoapods-core/cdn_source.rb', line 260

def updateable?
  true
end

#url ⇒ String

Returns The URL of the source.

Returns:

  • (String) —

    The URL of the source.



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# File 'lib/cocoapods-core/cdn_source.rb', line 34

def url
  @url ||= File.read(repo.join('.url')).chomp.chomp('/') + '/'
end

#versions(name) ⇒ Array<Version>

Returns all the available versions for the Pod, sorted from highest to lowest.

Parameters:

  • name (String) —

    the name of the Pod.

Returns:

  • (Array<Version>) —

    all the available versions for the Pod, sorted from highest to lowest.

Raises:

  • (ArgumentError) 


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# File 'lib/cocoapods-core/cdn_source.rb', line 105

def versions(name)
  return nil unless specs_dir
  raise ArgumentError, 'No name' unless name

  fragment = pod_shard_fragment(name)

  ensure_versions_file_loaded(fragment)

  return @versions_by_name[name] unless @versions_by_name[name].nil?

  pod_path_actual = pod_path(name)
  pod_path_relative = relative_pod_path(name)

  return nil if @version_arrays_by_fragment_by_name[fragment][name].nil?

  loaders = []
  @versions_by_name[name] ||= @version_arrays_by_fragment_by_name[fragment][name].map do |version|
    # Optimization: ensure all the podspec files at least exist. The correct one will get refreshed
    # in #specification_path regardless.
    podspec_version_path_relative = Pathname.new(version).join("#{name}.podspec.json")
    unless pod_path_actual.join(podspec_version_path_relative).exist?
      loaders << Concurrent::Promises.future_on(@executor) do
        download_file(pod_path_relative.join(podspec_version_path_relative).to_s)
      end
    end
    begin
      Version.new(version) if version[0, 1] != '.'
    rescue ArgumentError
      raise Informative, 'An unexpected version directory ' \
      "`#{version}` was encountered for the " \
      "`#{pod_path_actual}` Pod in the `#{name}` repository."
    end
  end.compact.sort.reverse

  catching_concurrent_errors do
    Concurrent::Promises.zip(*loaders).wait!
  end

  @versions_by_name[name]
end