Class: Pod::Installer::Analyzer

Inherits:
Object
  • Object
show all
Includes:
Config::Mixin
Defined in:
lib/cocoapods/installer/analyzer.rb,
lib/cocoapods/installer/analyzer/pod_variant.rb,
lib/cocoapods/installer/analyzer/specs_state.rb,
lib/cocoapods/installer/analyzer/analysis_result.rb,
lib/cocoapods/installer/analyzer/pod_variant_set.rb,
lib/cocoapods/installer/analyzer/sandbox_analyzer.rb,
lib/cocoapods/installer/analyzer/target_inspector.rb,
lib/cocoapods/installer/analyzer/podfile_dependency_cache.rb,
lib/cocoapods/installer/analyzer/target_inspection_result.rb,
lib/cocoapods/installer/analyzer/locking_dependency_analyzer.rb

Overview

Analyzes the Podfile, the Lockfile, and the sandbox manifest to generate the information relative to a CocoaPods installation.

Defined Under Namespace

Modules: LockingDependencyAnalyzer Classes: AnalysisResult, PodVariant, PodVariantSet, PodfileDependencyCache, SandboxAnalyzer, SpecsState, TargetInspectionResult, TargetInspector

Constant Summary collapse

IOS_64_BIT_ONLY_VERSION =

Returns The version of iOS which requires binaries with only 64-bit architectures.

Returns:

  • (String) —

    The version of iOS which requires binaries with only 64-bit architectures

Version.new('11.0')
IOS_64_BIT_ONLY_PROJECT_VERSION =

Xcode 10 will automatically select the correct architectures based on deployment target

Returns:

  • (Integer) —

    The Xcode object version until which 64-bit architectures should be manually specified

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Instance Attribute Summary collapse

Configuration collapse

Analysis steps collapse

Analysis sub-steps collapse

Instance Method Summary collapse

Methods included from Config::Mixin

#config

Constructor Details

#initialize(sandbox, podfile, lockfile = nil, plugin_sources = nil, has_dependencies = true, pods_to_update = false, sources_manager = Source::Manager.new(config.repos_dir)) ⇒ Analyzer

Initialize a new instance

Parameters:

  • sandbox (Sandbox) —

    @see #sandbox

  • podfile (Podfile) —

    @see #podfile

  • lockfile (Lockfile, nil) (defaults to: nil) —

    @see #lockfile

  • plugin_sources (Array<Source>) (defaults to: nil) —

    @see #plugin_sources

  • has_dependencies (Boolean) (defaults to: true) —

    @see #has_dependencies

  • pods_to_update (Hash, Boolean, nil) (defaults to: false) —

    @see #pods_to_update

  • sources_manager (Source::Manager) (defaults to: Source::Manager.new(config.repos_dir)) —

    @see #sources_manager



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# File 'lib/cocoapods/installer/analyzer.rb', line 76

def initialize(sandbox, podfile, lockfile = nil, plugin_sources = nil, has_dependencies = true,
               pods_to_update = false, sources_manager = Source::Manager.new(config.repos_dir))
  @sandbox  = sandbox
  @podfile  = podfile
  @lockfile = lockfile
  @plugin_sources = plugin_sources
  @has_dependencies = has_dependencies
  @pods_to_update = pods_to_update
  @installation_options = podfile.installation_options
  @podfile_dependency_cache = PodfileDependencyCache.from_podfile(podfile)
  @sources_manager = sources_manager
  @path_lists = {}
  @result = nil
end

Instance Attribute Details

#has_dependencies ⇒ Boolean (readonly) Also known as: has_dependencies?

Note:

This is used by the pod lib lint command to prevent update of specs when not needed.

Returns Whether the analysis has dependencies and thus sources must be configured.

Returns:

  • (Boolean) —

    Whether the analysis has dependencies and thus sources must be configured.



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# File 'lib/cocoapods/installer/analyzer.rb', line 50

def has_dependencies
  @has_dependencies
end

#installation_options ⇒ InstallationOptions (readonly)

Returns the installation options specified by the Podfile.

Returns:



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# File 'lib/cocoapods/installer/analyzer.rb', line 60

def installation_options
  @installation_options
end

#lockfile ⇒ Lockfile? (readonly)

Returns The Lockfile, if available, that stores the information about the Pods previously installed.

Returns:

  • (Lockfile, nil) —

    The Lockfile, if available, that stores the information about the Pods previously installed.



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# File 'lib/cocoapods/installer/analyzer.rb', line 40

def lockfile
  @lockfile
end

#plugin_sources ⇒ Array<Source> (readonly)

Returns Sources provided by plugins or nil.

Returns:

  • (Array<Source>) —

    Sources provided by plugins or nil.



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# File 'lib/cocoapods/installer/analyzer.rb', line 44

def plugin_sources
  @plugin_sources
end

#podfile ⇒ Podfile (readonly)

Returns The Podfile specification that contains the information of the Pods that should be installed.

Returns:

  • (Podfile) —

    The Podfile specification that contains the information of the Pods that should be installed.



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# File 'lib/cocoapods/installer/analyzer.rb', line 36

def podfile
  @podfile
end

#pods_to_update ⇒ Hash, ... (readonly)

Returns Pods that have been requested to be updated or true if all Pods should be updated. This can be false if no pods should be updated.

Returns:

  • (Hash, Boolean, nil) —

    Pods that have been requested to be updated or true if all Pods should be updated. This can be false if no pods should be updated.



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# File 'lib/cocoapods/installer/analyzer.rb', line 56

def pods_to_update
  @pods_to_update
end

#sandbox ⇒ Sandbox (readonly)

Returns The sandbox to use for this analysis.

Returns:

  • (Sandbox) —

    The sandbox to use for this analysis.



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# File 'lib/cocoapods/installer/analyzer.rb', line 32

def sandbox
  @sandbox
end

#sources_manager ⇒ Source::Manager (readonly)

Returns the sources manager to use when resolving dependencies.

Returns:

  • (Source::Manager) —

    the sources manager to use when resolving dependencies



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# File 'lib/cocoapods/installer/analyzer.rb', line 64

def sources_manager
  @sources_manager
end

Class Method Details

.requires_64_bit_archs?(platform, object_version) ⇒ Boolean

Returns Whether the platform requires 64-bit architectures.

Parameters:

  • platform (Platform) —

    The platform to build against

  • object_version (String, Nil) —

    The user project's object version, or nil if not available

Returns:

  • (Boolean) —

    Whether the platform requires 64-bit architectures



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# File 'lib/cocoapods/installer/analyzer.rb', line 1142

def requires_64_bit_archs?(platform, object_version)
  return false unless platform
  case platform.name
  when :osx
    true
  when :ios
    if (version = object_version)
      platform.deployment_target >= IOS_64_BIT_ONLY_VERSION && version.to_i < IOS_64_BIT_ONLY_PROJECT_VERSION
    else
      platform.deployment_target >= IOS_64_BIT_ONLY_VERSION
    end
  when :watchos
    false
  when :tvos
    false
  end
end

Instance Method Details

#analyze(allow_fetches = true) ⇒ AnalysisResult

Performs the analysis.

The Podfile and the Lockfile provide the information necessary to compute which specification should be installed. The manifest of the sandbox returns which specifications are installed.

Parameters:

  • allow_fetches (Boolean) (defaults to: true) —

    whether external sources may be fetched

Returns:



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# File 'lib/cocoapods/installer/analyzer.rb', line 102

def analyze(allow_fetches = true)
  return @result if @result
  validate_podfile!
  validate_lockfile_version!
  if installation_options.integrate_targets?
    target_inspections = inspect_targets_to_integrate
  else
    verify_platforms_specified!
    target_inspections = {}
  end
  podfile_state = generate_podfile_state

  store_existing_checkout_options
  if allow_fetches == :outdated
    # special-cased -- we're only really resolving for outdated, rather than doing a full analysis
  elsif allow_fetches == true
    fetch_external_sources(podfile_state)
  elsif !dependencies_to_fetch(podfile_state).all?(&:local?)
    raise Informative, 'Cannot analyze without fetching dependencies since the sandbox is not up-to-date. Run `pod install` to ensure all dependencies have been fetched.' \
      "\n    The missing dependencies are:\n    \t#{dependencies_to_fetch(podfile_state).reject(&:local?).join("\n    \t")}"
  end

  locked_dependencies = generate_version_locking_dependencies(podfile_state)
  resolver_specs_by_target = resolve_dependencies(locked_dependencies)
  validate_platforms(resolver_specs_by_target)
  specifications = generate_specifications(resolver_specs_by_target)
  aggregate_targets, pod_targets = generate_targets(resolver_specs_by_target, target_inspections)
  sandbox_state = generate_sandbox_state(specifications)
  specs_by_target = resolver_specs_by_target.each_with_object({}) do |rspecs_by_target, hash|
    hash[rspecs_by_target[0]] = rspecs_by_target[1].map(&:spec)
  end
  specs_by_source = Hash[resolver_specs_by_target.values.flatten(1).group_by(&:source).map do |source, specs|
    [source, specs.map(&:spec).uniq]
  end]
  sources.each { |s| specs_by_source[s] ||= [] }
  @result = AnalysisResult.new(podfile_state, specs_by_target, specs_by_source, specifications, sandbox_state,
                               aggregate_targets, pod_targets, @podfile_dependency_cache)
end

#analyze_host_targets_in_podfile(aggregate_targets, embedded_aggregate_targets) ⇒ Object (private)

Raises an error if there are embedded targets in the Podfile, but their host targets have not been declared in the Podfile. As it finds host targets, it collection information on host target types.

Parameters:

  • aggregate_targets (Array<AggregateTarget>) —

    the generated aggregate targets

  • embedded_aggregate_targets (Array<AggregateTarget>) —

    the aggregate targets representing the embedded targets to be integrated



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# File 'lib/cocoapods/installer/analyzer.rb', line 336

def analyze_host_targets_in_podfile(aggregate_targets, embedded_aggregate_targets)
  target_definitions_by_uuid = {}
  cli_host_with_dynamic_linkage = []
  cli_product_type = 'com.apple.product-type.tool'
  # Collect aggregate target definitions by uuid to later lookup host target
  # definitions and verify their compatibility with their embedded targets
  aggregate_targets.each do |target|
    target.user_targets.each do |user_target|
      target_definition = target.target_definition
      target_definitions_by_uuid[user_target.uuid] = target_definition
      if user_target.product_type == cli_product_type && target_definition.build_type.linkage == :dynamic
        cli_host_with_dynamic_linkage << user_target
      end
    end
  end
  aggregate_target_user_projects = aggregate_targets.map(&:user_project)
  embedded_targets_missing_hosts = []
  host_uuid_to_embedded_target_definitions = {}
  # Search all of the known user projects for each embedded target's hosts
  embedded_aggregate_targets.each do |target|
    host_uuids = aggregate_target_user_projects.product(target.user_targets).flat_map do |user_project, user_target|
      user_project.host_targets_for_embedded_target(user_target).map(&:uuid)
    end
    # For each host, keep track of its embedded target definitions
    # to later verify each embedded target's compatiblity with its host,
    # ignoring the hosts that aren't known to CocoaPods (no target
    # definitions in the Podfile)
    host_uuids.each do |uuid|
      (host_uuid_to_embedded_target_definitions[uuid] ||= []) << target.target_definition if target_definitions_by_uuid.key? uuid
    end
    # If none of the hosts are known to CocoaPods (no target definitions
    # in the Podfile), add it to the list of targets missing hosts
    embedded_targets_missing_hosts << target unless host_uuids.any? do |uuid|
      target_definitions_by_uuid.key? uuid
    end
  end

  unless cli_host_with_dynamic_linkage.empty?
    UI.warn "The Podfile contains command line tool target(s) (#{cli_host_with_dynamic_linkage.map(&:name).to_sentence}) which are attempting to integrate dynamic frameworks or libraries." \
      "\n" \
      'This may not behave as expected, because command line tools are usually distributed as a single binary and cannot contain their own dynamic dependencies.'
  end

  unless embedded_targets_missing_hosts.empty?
    embedded_targets_missing_hosts_product_types = Set.new embedded_targets_missing_hosts.flat_map(&:user_targets).map(&:symbol_type)
    target_names = embedded_targets_missing_hosts.map do |target|
      target.name.sub('Pods-', '') # Make the target names more recognizable to the user
    end.join ', '
    #  If the targets missing hosts are only frameworks, then this is likely
    #  a project for doing framework development. In that case, just warn that
    #  the frameworks that these targets depend on won't be integrated anywhere
    if embedded_targets_missing_hosts_product_types.subset?(Set.new([:framework, :static_library]))
      UI.warn "The Podfile contains framework or static library targets (#{target_names}), for which the Podfile does not contain host targets (targets which embed the framework)." \
        "\n" \
        'If this project is for doing framework development, you can ignore this message. Otherwise, add a target to the Podfile that embeds these frameworks to make this message go away (e.g. a test target).'
    else
      raise Informative, "Unable to find host target(s) for #{target_names}. Please add the host targets for the embedded targets to the Podfile." \
                          "\n" \
                          'Certain kinds of targets require a host target. A host target is a "parent" target which embeds a "child" target. These are example types of targets that need a host target:' \
                          "\n- Framework" \
                          "\n- App Extension" \
                          "\n- Watch OS 1 Extension" \
                          "\n- Messages Extension (except when used with a Messages Application)"
    end
  end

  target_mismatches = []
  host_uuid_to_embedded_target_definitions.each do |uuid, target_definitions|
    host_target_definition = target_definitions_by_uuid[uuid]
    target_definitions.each do |target_definition|
      unless host_target_definition.uses_frameworks? == target_definition.uses_frameworks?
        target_mismatches << "- #{host_target_definition.name} (#{host_target_definition.uses_frameworks?}) and #{target_definition.name} (#{target_definition.uses_frameworks?}) do not both set use_frameworks!."
      end
    end
  end

  unless target_mismatches.empty?
    heading = 'Unable to integrate the following embedded targets with their respective host targets (a host target is a "parent" target which embeds a "child" target like a framework or extension):'
    raise Informative, heading + "\n\n" + target_mismatches.sort.uniq.join("\n")
  end
end

#checkout_requires_update?(dependency) ⇒ Boolean (private)

Returns:

  • (Boolean) 


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# File 'lib/cocoapods/installer/analyzer.rb', line 1021

def checkout_requires_update?(dependency)
  return true unless lockfile && sandbox.manifest
  locked_checkout_options = lockfile.checkout_options_for_pod_named(dependency.root_name)
  sandbox_checkout_options = sandbox.manifest.checkout_options_for_pod_named(dependency.root_name)
  locked_checkout_options != sandbox_checkout_options
end

#compute_pod_target_dependencies(pod_targets, all_specs) ⇒ Array<PodTarget> (private)

Compute the dependencies for the set of pod targets.

Parameters:

  • pod_targets (Array<PodTarget>) —

    pod targets.

  • all_specs (Hash{String => Array<Specification>}) —

    specifications grouped by name.

Returns:



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# File 'lib/cocoapods/installer/analyzer.rb', line 679

def compute_pod_target_dependencies(pod_targets, all_specs)
  pod_targets_by_name = pod_targets.group_by(&:pod_name).each_with_object({}) do |(name, values), hash|
    # Sort the target by the number of activated subspecs, so that
    # we prefer a minimal target as transitive dependency.
    hash[name] = values.sort_by { |pt| pt.specs.count }
  end

  pod_targets.each do |target|
    dependencies_by_config = dependencies_for_specs(target.library_specs, target.platform, all_specs)
    target.dependent_targets_by_config = Hash[dependencies_by_config.map { |k, v| [k, filter_dependencies(v, pod_targets_by_name, target)] }]

    target.test_dependent_targets_by_spec_name_by_config = target.test_specs.each_with_object({}) do |test_spec, hash|
      test_dependencies_by_config = dependencies_for_specs([test_spec], target.platform, all_specs)
      test_dependencies_by_config.each { |config, deps| deps.delete_if { |k, _| dependencies_by_config[config].key? k } }
      hash[test_spec.name] = Hash[test_dependencies_by_config.map { |k, v| [k, filter_dependencies(v, pod_targets_by_name, target)] }]
    end

    target.app_dependent_targets_by_spec_name_by_config = target.app_specs.each_with_object({}) do |app_spec, hash|
      app_dependencies_by_config = dependencies_for_specs([app_spec], target.platform, all_specs)
      app_dependencies_by_config.each { |config, deps| deps.delete_if { |k, _| dependencies_by_config[config].key? k } }
      hash[app_spec.name] = Hash[app_dependencies_by_config.map { |k, v| [k, filter_dependencies(v, pod_targets_by_name, target)] }]
    end

    target.test_app_hosts_by_spec = target.test_specs.each_with_object({}) do |test_spec, hash|
      next unless app_host_name = test_spec.consumer(target.platform).app_host_name
      app_host_spec = pod_targets_by_name[Specification.root_name(app_host_name)].flat_map(&:app_specs).find do |pt|
        pt.name == app_host_name
      end
      app_host_dependencies = { app_host_spec.root => [app_host_spec] }
      hash[test_spec] = [app_host_spec, filter_dependencies(app_host_dependencies, pod_targets_by_name, target).first]
    end
  end
end

#create_file_accessors(specs, platform) ⇒ Array<FileAccessor> (private)

Creates the file accessors for a given pod.

Parameters:

  • specs (Array<Specification>) —

    the specs to map each file accessor to.

  • platform (Platform) —

    the platform to use when generating each file accessor.

Returns:

  • (Array<FileAccessor>) 


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# File 'lib/cocoapods/installer/analyzer.rb', line 831

def create_file_accessors(specs, platform)
  name = specs.first.name
  pod_root = sandbox.pod_dir(name)
  path_list = @path_lists.fetch(pod_root) do |root|
    path_list = Sandbox::PathList.new(root)
    @path_lists[root] = path_list
  end
  specs.map do |spec|
    Sandbox::FileAccessor.new(path_list, spec.consumer(platform))
  end
end

#dependencies_for_specs(specs, platform, all_specs) ⇒ Hash{Symbol => Set<Specification>} (private)

Returns the specs upon which the given specs directly depend.

@note: This is implemented in the analyzer, because we don't have to care about the requirements after dependency resolution.

Parameters:

  • specs (Array<Specification>) —

    The specs, whose dependencies should be returned.

  • platform (Platform) —

    The platform for which the dependencies should be returned.

  • all_specs (Hash{String => Array<Specification>}) —

    All specifications which are installed alongside.

Returns:



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# File 'lib/cocoapods/installer/analyzer.rb', line 745

def dependencies_for_specs(specs, platform, all_specs)
  dependent_specs = {
    :debug => Set.new,
    :release => Set.new,
  }

  if !specs.empty? && !all_specs.empty?
    specs.each do |s|
      s.dependencies(platform).each do |dep|
        all_specs[dep.name].each do |spec|
          if spec.non_library_specification?
            if s.test_specification? && spec.name == s.consumer(platform).app_host_name && spec.app_specification?
              # This needs to be handled separately, since we _don't_ want to treat this as a "normal" dependency
              next
            end
            raise Informative, "`#{s}` depends upon `#{spec}`, which is a `#{spec.spec_type}` spec."
          end

          dependent_specs.each do |config, set|
            next unless s.dependency_whitelisted_for_configuration?(dep, config)
            set << spec
          end
        end
      end
    end
  end

  Hash[dependent_specs.map { |k, v| [k, (v - specs).group_by(&:root)] }].freeze
end

#dependencies_to_fetch(podfile_state) ⇒ Object (private) 



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# File 'lib/cocoapods/installer/analyzer.rb', line 1000

def dependencies_to_fetch(podfile_state)
  @deps_to_fetch ||= begin
    deps_to_fetch = []
    deps_with_external_source = podfile_dependencies.select(&:external_source)

    if update_mode == :all
      deps_to_fetch = deps_with_external_source
    else
      deps_to_fetch = deps_with_external_source.select { |dep| pods_to_fetch(podfile_state).include?(dep.root_name) }
      deps_to_fetch_if_needed = deps_with_external_source.select { |dep| podfile_state.unchanged.include?(dep.root_name) }
      deps_to_fetch += deps_to_fetch_if_needed.select do |dep|
        sandbox.specification_path(dep.root_name).nil? ||
          !dep.external_source[:path].nil? ||
          !sandbox.pod_dir(dep.root_name).directory? ||
          checkout_requires_update?(dep)
      end
    end
    deps_to_fetch.uniq(&:root_name)
  end
end

#determine_build_type(spec, target_definition_build_type) ⇒ BuildType (private)

Calculates and returns the #BuildType to use for the given spec. If the spec specifies static_framework then it is honored as long as the host #BuildType also requires its pods to be integrated as frameworks.

Parameters:

  • spec (Specification) —

    the spec to determine the #BuildType for.

  • target_definition_build_type (BuildType) —

    The desired #BuildType by the target definition that integrates this target. If the pod target spec does not specify explicitly a static_framework #BuildType then the one from the target definition is used.

Returns:

  • (BuildType) 


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# File 'lib/cocoapods/installer/analyzer.rb', line 911

def determine_build_type(spec, target_definition_build_type)
  if target_definition_build_type.framework?
    root_spec = spec.root
    root_spec.static_framework ? BuildType.static_framework : target_definition_build_type
  else
    BuildType.static_library
  end
end

#determine_platform(specs, target_definitions, build_type) ⇒ Platform (private)

Note:

The platform is only determined by all library specs and ignores non library ones. Subspecs are always integrated in the same target as the root spec therefore the max deployment target is always returned across the specs passed.

Calculates and returns the platform to use for the given list specs and target definitions.

Parameters:

  • specs (Array<Specification>) —

    the specs to inspect and calculate the platform for.

  • target_definitions (Array<TargetDefinition>) —

    the target definitions these specs are part of.

  • build_type (BuildType) —

    the #BuildType used for calculating the platform.

Returns:

  • (Platform) 


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# File 'lib/cocoapods/installer/analyzer.rb', line 860

def determine_platform(specs, target_definitions, build_type)
  library_specs = specs.select(&:library_specification?)
  platform_name = target_definitions.first.platform.name
  default = Podfile::TargetDefinition::PLATFORM_DEFAULTS[platform_name]
  deployment_target = library_specs.map do |library_spec|
    Version.new(library_spec.deployment_target(platform_name) || default)
  end.max
  if platform_name == :ios && build_type.framework?
    minimum = Version.new('8.0')
    deployment_target = [deployment_target, minimum].max
  end
  Platform.new(platform_name, deployment_target)
end

#determine_swift_version(spec, target_definitions) ⇒ String? (private)

Determines the Swift version for the given spec within a list of target definitions. If the pod author has provided a set of Swift versions supported by their pod then the max Swift version is chosen, unless the target definitions specify explicit requirements for supported Swift versions. Otherwise the Swift version is derived by the target definitions that integrate this pod.

Parameters:

  • spec (Specification) —

    the specs to inspect and determine what Swift version to use.

  • target_definitions (Array<TargetDefinition>) —

    the target definitions the spec is part of.

Returns:

  • (String, nil) —

    the computed Swift version or nil if the Swift version could not be determined.



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# File 'lib/cocoapods/installer/analyzer.rb', line 887

def determine_swift_version(spec, target_definitions)
  if spec.swift_versions.empty?
    target_definitions.map(&:swift_version).compact.uniq.first
  else
    spec.swift_versions.sort.reverse_each.find do |swift_version|
      target_definitions.all? do |td|
        td.supports_swift_version?(swift_version)
      end
    end.to_s
  end
end

#embedded_target_pod_targets_by_host(aggregate_target, embedded_aggregate_targets, libraries_only) ⇒ Hash{String=>Array<PodTarget>} (private)

Copies the pod targets of any of the app embedded aggregate targets into their potential host aggregate target, if that potential host aggregate target's user_target hosts any of the app embedded aggregate targets' user_targets

Parameters:

  • aggregate_target (AggregateTarget) —

    the aggregate target whose user_target might host one or more of the embedded aggregate targets' user_targets

  • embedded_aggregate_targets (Array<AggregateTarget>) —

    the aggregate targets representing the embedded targets to be integrated

  • libraries_only (Boolean) —

    if true, only library-type embedded targets are considered, otherwise, all other types are have their pods copied to their host targets as well (extensions, etc.)

Returns:

  • (Hash{String=>Array<PodTarget>}) —

    the additional pod targets to include to the host keyed by their configuration.



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# File 'lib/cocoapods/installer/analyzer.rb', line 293

def embedded_target_pod_targets_by_host(aggregate_target, embedded_aggregate_targets, libraries_only)
  return {} if aggregate_target.requires_host_target?
  aggregate_user_target_uuids = Set.new(aggregate_target.user_targets.map(&:uuid))
  embedded_pod_targets_by_build_config = Hash.new([].freeze)
  embedded_aggregate_targets.each do |embedded_aggregate_target|
    # Skip non libraries in library-only mode
    next if libraries_only && !embedded_aggregate_target.library?
    next if aggregate_target.search_paths_aggregate_targets.include?(embedded_aggregate_target)
    next unless embedded_aggregate_target.user_targets.any? do |embedded_user_target|
      # You have to ask the host target's project for the host targets of
      # the embedded target, as opposed to asking user_project for the
      # embedded targets of the host target. The latter doesn't work when
      # the embedded target lives in a sub-project. The lines below get
      # the host target uuids for the embedded target and checks to see if
      # those match to any of the user_target uuids in the aggregate_target.
      host_target_uuids = Set.new(aggregate_target.user_project.host_targets_for_embedded_target(embedded_user_target).map(&:uuid))
      !aggregate_user_target_uuids.intersection(host_target_uuids).empty?
    end
    embedded_aggregate_target.user_build_configurations.each_key do |configuration_name|
      pod_target_names = Set.new(aggregate_target.pod_targets_for_build_configuration(configuration_name).map(&:name))
      embedded_pod_targets = embedded_aggregate_target.pod_targets_for_build_configuration(configuration_name).select do |pod_target|
        if !pod_target_names.include?(pod_target.name) &&
           aggregate_target.pod_targets.none? { |aggregate_pod_target| (pod_target.specs - aggregate_pod_target.specs).empty? } &&
           (libraries_only || pod_target.build_as_dynamic?)
          pod_target.name
        end
      end
      embedded_pod_targets_by_build_config[configuration_name] += embedded_pod_targets
    end
  end
  embedded_pod_targets_by_build_config
end

#fetch_external_source(dependency, use_lockfile_options) ⇒ Object (private) 



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# File 'lib/cocoapods/installer/analyzer.rb', line 991

def fetch_external_source(dependency, use_lockfile_options)
  source = if use_lockfile_options && lockfile && checkout_options = lockfile.checkout_options_for_pod_named(dependency.root_name)
             ExternalSources.from_params(checkout_options, dependency, podfile.defined_in_file, installation_options.clean?)
           else
             ExternalSources.from_dependency(dependency, podfile.defined_in_file, installation_options.clean?)
           end
  source.fetch(sandbox)
end

#fetch_external_sources(podfile_state) ⇒ void (private)

Note:

In update mode all the external sources are refreshed while in normal mode they are refreshed only if added or changed in the Podfile. Moreover, in normal specifications for unchanged Pods which are missing or are generated from an local source are fetched as well.

Note:

It is possible to perform this step before the resolution process because external sources identify a single specific version (checkout). If the other dependencies are not compatible with the version reported by the podspec of the external source the resolver will raise.

This method returns an undefined value.

Fetches the podspecs of external sources if modifications to the sandbox are allowed.

Parameters:

  • podfile_state (SpecState) —

    the state of the podfile for which dependencies have or have not changed, added, deleted or updated.



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# File 'lib/cocoapods/installer/analyzer.rb', line 969

def fetch_external_sources(podfile_state)
  verify_no_pods_with_different_sources!
  deps = dependencies_to_fetch(podfile_state)
  pods = pods_to_fetch(podfile_state)
  return if deps.empty?
  UI.section 'Fetching external sources' do
    deps.sort.each do |dependency|
      fetch_external_source(dependency, !pods.include?(dependency.root_name))
    end
  end
end

#filter_dependencies(dependencies, pod_targets_by_name, target) ⇒ Object (private) 



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# File 'lib/cocoapods/installer/analyzer.rb', line 713

def filter_dependencies(dependencies, pod_targets_by_name, target)
  dependencies.map do |root_spec, deps|
    pod_targets_by_name[root_spec.name].find do |t|
      next false if t.platform.symbolic_name != target.platform.symbolic_name ||
        # In the case of variants we must ensure that the platform this target is meant for is the same
        # as the one we are interested in.
        t.target_definitions.first.platform != target.target_definitions.first.platform ||
        # rather than target type or requires_frameworks? since we want to group by what was specified in that
        # _target definition_.
        t.build_as_framework? != target.build_as_framework?
      spec_names = t.specs.map(&:name)
      deps.all? { |dep| spec_names.include?(dep.name) }
    end
  end
end

#filter_pod_targets_for_target_definition(target_definition, pod_targets_by_target_definition, build_configurations) ⇒ Hash{String => Array<PodTarget>} (private)

Returns a filtered list of pod targets that should or should not be part of the target definition. Pod targets used by tests only are filtered.

Parameters:

  • target_definition (TargetDefinition) —

    the target definition to use as the base for filtering

  • pod_targets_by_target_definition (Hash{TargetDefinition => Array<PodTarget>}) —

    the pod targets grouped by target.

  • build_configurations (Array<String>) —

    The list of all build configurations the targets will be built for.

Returns:

  • (Hash{String => Array<PodTarget>}) —

    the filtered list of pod targets, grouped by build configuration.



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# File 'lib/cocoapods/installer/analyzer.rb', line 564

def filter_pod_targets_for_target_definition(target_definition, pod_targets_by_target_definition,
                                             build_configurations)
  pod_targets_by_build_config = Hash.new([].freeze)
  build_configurations.each { |config| pod_targets_by_build_config[config] = [] }

  dependencies_by_root_name = @podfile_dependency_cache.target_definition_dependencies(target_definition).group_by(&:root_name)

  pod_targets_by_target_definition[target_definition].each do |pod_target|
    pod_name = pod_target.pod_name
    dependencies = dependencies_by_root_name[pod_name] || []

    build_configurations.each do |configuration_name|
      whitelists = dependencies.map do |dependency|
        target_definition.pod_whitelisted_for_configuration?(dependency.name, configuration_name)
      end.uniq

      case whitelists
      when [], [true] then nil
      when [false] then next
      else
        raise Informative, "The subspecs of `#{pod_name}` are linked to " \
          "different build configurations for the `#{target_definition}` " \
          'target. CocoaPods does not currently support subspecs across ' \
          'different build configurations.'
      end

      pod_targets_by_build_config[configuration_name] << pod_target
    end
  end

  pod_targets_by_build_config
end

#generate_aggregate_target(target_definition, target_inspections, pod_targets_by_target_definition) ⇒ AggregateTarget (private)

Setup the aggregate target for a single user target

Parameters:

  • target_definition (TargetDefinition) —

    the target definition for the user target.

  • target_inspections (Hash{TargetDefinition => TargetInspectionResult}) —

    the user target inspections used to construct the aggregate and pod targets.

  • pod_targets_by_target_definition (Hash{TargetDefinition => Array<PodTarget>}) —

    the pod targets grouped by target.

Returns:



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# File 'lib/cocoapods/installer/analyzer.rb', line 500

def generate_aggregate_target(target_definition, target_inspections, pod_targets_by_target_definition)
  if installation_options.integrate_targets?
    target_inspection = target_inspections[target_definition]
    raise "missing inspection for #{target_definition.inspect}" unless target_inspection
    target_requires_64_bit = Analyzer.requires_64_bit_archs?(target_definition.platform, target_inspection.project.object_version)
    user_project = target_inspection.project
    client_root = target_inspection.client_root
    user_target_uuids = target_inspection.project_target_uuids
    user_build_configurations = target_inspection.build_configurations
    archs = target_requires_64_bit ? ['$(ARCHS_STANDARD_64_BIT)'] : target_inspection.archs
  else
    target_requires_64_bit = Analyzer.requires_64_bit_archs?(target_definition.platform, nil)
    user_project = nil
    client_root = config.installation_root.realpath
    user_target_uuids = []
    user_build_configurations = target_definition.build_configurations || Target::DEFAULT_BUILD_CONFIGURATIONS
    archs = target_requires_64_bit ? ['$(ARCHS_STANDARD_64_BIT)'] : []
  end
  platform = target_definition.platform
  build_configurations = user_build_configurations.keys.concat(target_definition.all_whitelisted_configurations).uniq
  pod_targets_for_build_configuration = filter_pod_targets_for_target_definition(target_definition,
                                                                                 pod_targets_by_target_definition,
                                                                                 build_configurations)
  build_type = target_definition.uses_frameworks? ? BuildType.static_framework : BuildType.static_library
  AggregateTarget.new(sandbox, build_type, user_build_configurations, archs, platform, target_definition,
                      client_root, user_project, user_target_uuids, pod_targets_for_build_configuration)
end

#generate_pod_target(target_definitions, build_type, target_inspections, specs, scope_suffix: nil, swift_version: nil) ⇒ PodTarget (private)

Create a target for each spec group

Parameters:

  • target_definitions (Array<TargetDefinition>) —

    the target definitions of the pod target

  • build_type (BuildType) —

    the BuildType to use for this pod target.

  • target_inspections (Hash{TargetDefinition => TargetInspectionResult}) —

    the user target inspections used to construct the aggregate and pod targets.

  • specs (Array<Specification>) —

    the specifications of an equal root.

  • scope_suffix (String) (defaults to: nil) —

    @see PodTarget#scope_suffix

  • swift_version (String) (defaults to: nil) —

    @see PodTarget#swift_version

Returns:



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# File 'lib/cocoapods/installer/analyzer.rb', line 797

def generate_pod_target(target_definitions, build_type, target_inspections, specs, scope_suffix: nil,
                        swift_version: nil)
  target_inspections = target_inspections.select { |t, _| target_definitions.include?(t) }.values
  object_version = target_inspections.map { |ti| ti.project.object_version }.min
  target_requires_64_bit = target_definitions.all? { |td| Analyzer.requires_64_bit_archs?(td.platform, object_version) }
  if !target_inspections.empty?
    user_build_configurations = target_inspections.map(&:build_configurations).reduce({}, &:merge)
    archs = if target_requires_64_bit
              ['$(ARCHS_STANDARD_64_BIT)']
            else
              target_inspections.flat_map(&:archs).compact.uniq.sort
            end
  else
    user_build_configurations = Target::DEFAULT_BUILD_CONFIGURATIONS.merge(
      target_definitions.map { |td| td.build_configurations || {} }.reduce({}, &:merge),
    )
    archs = target_requires_64_bit ? ['$(ARCHS_STANDARD_64_BIT)'] : []
  end
  platform = determine_platform(specs, target_definitions, build_type)
  file_accessors = create_file_accessors(specs, platform)
  PodTarget.new(sandbox, build_type, user_build_configurations, archs, platform, specs, target_definitions,
                file_accessors, scope_suffix, swift_version)
end

#generate_pod_targets(resolver_specs_by_target, target_inspections) ⇒ Array<PodTarget> (private)

Setup the pod targets for an aggregate target. Deduplicates resulting targets by grouping by platform and subspec by their root to create a PodTarget for each spec.

Parameters:

  • resolver_specs_by_target (Hash{TargetDefinition => Array<ResolvedSpecification>}) —

    the resolved specifications grouped by target.

  • target_inspections (Hash{TargetDefinition => TargetInspectionResult}) —

    the user target inspections used to construct the aggregate and pod targets.

Returns:



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# File 'lib/cocoapods/installer/analyzer.rb', line 609

def generate_pod_targets(resolver_specs_by_target, target_inspections)
  if installation_options.deduplicate_targets?
    distinct_targets = resolver_specs_by_target.each_with_object({}) do |dependency, hash|
      target_definition, dependent_specs = *dependency
      dependent_specs.group_by(&:root).each do |root_spec, resolver_specs|
        all_specs = resolver_specs.map(&:spec)
        all_specs_by_type = all_specs.group_by(&:spec_type)
        library_specs = all_specs_by_type[:library] || []
        test_specs = all_specs_by_type[:test] || []
        app_specs = all_specs_by_type[:app] || []
        build_type = determine_build_type(root_spec, target_definition.build_type)
        pod_variant = PodVariant.new(library_specs, test_specs, app_specs, target_definition.platform, build_type)
        hash[root_spec] ||= {}
        (hash[root_spec][pod_variant] ||= []) << target_definition
        pod_variant_spec = hash[root_spec].keys.find { |k| k == pod_variant }
        pod_variant_spec.test_specs.concat(test_specs).uniq!
        pod_variant_spec.app_specs.concat(app_specs).uniq!
      end
    end

    # Remap pod variants to a new instance that includes the Swift version since we now have the full set
    # of target definitions.
    distinct_targets = Hash[distinct_targets.map do |root, target_definitions_by_variant|
      variants = Hash[target_definitions_by_variant.map do |variant, target_definitions|
        swift_version = determine_swift_version(variant.root_spec, target_definitions)
        [variant.scoped_with_swift_version(swift_version), target_definitions]
      end]
      [root, variants]
    end]

    pod_targets = distinct_targets.flat_map do |_root, target_definitions_by_variant|
      target_definitions_by_variant.each_value do |target_definitions|
        target_definitions.reject!(&:abstract?) unless target_definitions.all?(&:abstract?)
      end
      suffixes = PodVariantSet.new(target_definitions_by_variant.keys).scope_suffixes
      target_definitions_by_variant.map do |variant, target_definitions|
        all_specs = variant.specs + variant.test_specs + variant.app_specs
        generate_pod_target(target_definitions, variant.build_type, target_inspections, all_specs,
                            :scope_suffix => suffixes[variant], :swift_version => variant.swift_version)
      end
    end

    all_specs = resolver_specs_by_target.values.flatten.map(&:spec).uniq.group_by(&:name)
    compute_pod_target_dependencies(pod_targets, all_specs)
  else
    dedupe_cache = {}
    resolver_specs_by_target.flat_map do |target_definition, specs|
      grouped_specs = specs.group_by(&:root).values.uniq
      pod_targets = grouped_specs.flat_map do |pod_specs|
        build_type = determine_build_type(pod_specs.first.spec, target_definition.build_type)
        swift_version = determine_swift_version(pod_specs.first.spec, [target_definition])
        generate_pod_target([target_definition], build_type, target_inspections, pod_specs.map(&:spec),
                            :swift_version => swift_version).scoped(dedupe_cache)
      end

      compute_pod_target_dependencies(pod_targets, specs.map(&:spec).group_by(&:name))
    end
  end
end

#generate_podfile_state ⇒ SpecsState, SpecState (private)

Note:

As the target definitions share the same sandbox they should have the same version of a Pod. For this reason this method returns the name of the Pod (root name of the dependencies) and doesn't group them by target definition.

Compares the Podfile with the Lockfile in order to detect which dependencies should be locked.

Returns:

  • (SpecsState) —

    the states of the Podfile specs.

  • (SpecState) 


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# File 'lib/cocoapods/installer/analyzer.rb', line 260

def generate_podfile_state
  if lockfile
    pods_state = nil
    UI.section 'Finding Podfile changes' do
      pods_by_state = lockfile.detect_changes_with_podfile(podfile)
      pods_state = SpecsState.new(pods_by_state)
      pods_state.print if config.verbose?
    end
    pods_state
  else
    state = SpecsState.new
    state.added.merge(podfile_dependencies.map(&:root_name))
    state
  end
end

#generate_sandbox_state(specifications) ⇒ SpecsState (private)

Computes the state of the sandbox respect to the resolved specifications.

Returns:

  • (SpecsState) —

    the representation of the state of the manifest specifications.



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# File 'lib/cocoapods/installer/analyzer.rb', line 1123

def generate_sandbox_state(specifications)
  sandbox_state = nil
  UI.section 'Comparing resolved specification to the sandbox manifest' do
    sandbox_analyzer = SandboxAnalyzer.new(sandbox, podfile, specifications, update_mode?)
    sandbox_state = sandbox_analyzer.analyze
    sandbox_state.print
  end
  sandbox_state
end

#generate_specifications(resolver_specs_by_target) ⇒ Array<Specification> (private)

Returns the list of all the resolved specifications.

Parameters:

  • resolver_specs_by_target (Hash{TargetDefinition => Array<Specification>}) —

    the resolved specifications grouped by target.

Returns:



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# File 'lib/cocoapods/installer/analyzer.rb', line 1113

def generate_specifications(resolver_specs_by_target)
  resolver_specs_by_target.values.flatten.map(&:spec).uniq
end

#generate_targets(resolver_specs_by_target, target_inspections) ⇒ (Array<AggregateTarget>, Array<PodTarget>) (private)

Creates the models that represent the targets generated by CocoaPods.

Parameters:

  • resolver_specs_by_target (Hash{TargetDefinition => Array<ResolvedSpecification>}) —

    mapping of targets to resolved specs (containing information about test usage) aggregate targets

  • target_inspections (Hash{TargetDefinition => TargetInspectionResult}) —

    the user target inspections used to construct the aggregate and pod targets.

Returns:

  • ((Array<AggregateTarget>, Array<PodTarget>)) —

    the list of aggregate targets generated, and the list of pod targets generated.



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# File 'lib/cocoapods/installer/analyzer.rb', line 430

def generate_targets(resolver_specs_by_target, target_inspections)
  resolver_specs_by_target = resolver_specs_by_target.reject { |td, _| td.abstract? && !td.platform }
  pod_targets = generate_pod_targets(resolver_specs_by_target, target_inspections)
  pod_targets_by_target_definition = group_pod_targets_by_target_definition(pod_targets, resolver_specs_by_target)
  aggregate_targets = resolver_specs_by_target.keys.reject(&:abstract?).map do |target_definition|
    generate_aggregate_target(target_definition, target_inspections, pod_targets_by_target_definition)
  end
  aggregate_targets.each do |target|
    search_paths_aggregate_targets = aggregate_targets.select do |aggregate_target|
      target.target_definition.targets_to_inherit_search_paths.include?(aggregate_target.target_definition)
    end
    target.search_paths_aggregate_targets.concat(search_paths_aggregate_targets).freeze
  end

  aggregate_targets.each do |aggregate_target|
    is_app_extension = !(aggregate_target.user_targets.map(&:symbol_type) &
        [:app_extension, :watch_extension, :watch2_extension, :tv_extension, :messages_extension]).empty?
    is_app_extension ||= aggregate_target.user_targets.any? do |user_target|
      user_target.common_resolved_build_setting('APPLICATION_EXTENSION_API_ONLY', :resolve_against_xcconfig => true) == 'YES'
    end
    if is_app_extension
      aggregate_target.mark_application_extension_api_only
      aggregate_target.pod_targets.each(&:mark_application_extension_api_only)
    end

    build_library_for_distribution = aggregate_target.user_targets.any? do |user_target|
      user_target.common_resolved_build_setting('BUILD_LIBRARY_FOR_DISTRIBUTION', :resolve_against_xcconfig => true) == 'YES'
    end
    if build_library_for_distribution
      aggregate_target.mark_build_library_for_distribution
      aggregate_target.pod_targets.each(&:mark_build_library_for_distribution)
    end
  end

  if installation_options.integrate_targets?
    # Copy embedded target pods that cannot have their pods embedded as frameworks to
    # their host targets, and ensure we properly link library pods to their host targets
    embedded_targets = aggregate_targets.select(&:requires_host_target?)
    analyze_host_targets_in_podfile(aggregate_targets, embedded_targets)

    use_frameworks_embedded_targets, non_use_frameworks_embedded_targets = embedded_targets.partition(&:build_as_framework?)
    aggregate_targets = aggregate_targets.map do |aggregate_target|
      # For targets that require dynamic frameworks, we always have to copy their pods to their
      # host targets because those frameworks will all be loaded from the host target's bundle
      embedded_pod_targets = embedded_target_pod_targets_by_host(aggregate_target, use_frameworks_embedded_targets, false)

      # For targets that don't require dynamic frameworks, we only have to consider library-type
      # targets because their host targets will still need to link their pods
      embedded_pod_targets.merge!(embedded_target_pod_targets_by_host(aggregate_target, non_use_frameworks_embedded_targets, true))

      next aggregate_target if embedded_pod_targets.empty?
      aggregate_target.merge_embedded_pod_targets(embedded_pod_targets)
    end
  end
  [aggregate_targets, pod_targets]
end

#generate_version_locking_dependencies(podfile_state) ⇒ Molinillo::DependencyGraph<Dependency> (private)

Generates dependencies that require the specific version of the Pods that haven't changed in the Lockfile.

These dependencies are passed to the Resolver, unless the installer is in update mode, to prevent it from upgrading the Pods that weren't changed in the Podfile.

Parameters:

  • podfile_state (SpecState) —

    the state of the podfile for which dependencies have or have not changed, added, deleted or updated.

Returns:

  • (Molinillo::DependencyGraph<Dependency>) —

    the dependencies generated by the lockfile that prevent the resolver to update a Pod.



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# File 'lib/cocoapods/installer/analyzer.rb', line 934

def generate_version_locking_dependencies(podfile_state)
  if update_mode == :all || !lockfile
    LockingDependencyAnalyzer.unlocked_dependency_graph
  else
    deleted_and_changed = podfile_state.changed + podfile_state.deleted
    deleted_and_changed += pods_to_update[:pods] if update_mode == :selected
    local_pod_names = podfile_dependencies.select(&:local?).map(&:root_name)
    pods_to_unlock = local_pod_names.to_set.delete_if do |pod_name|
      next unless sandbox_specification = sandbox.specification(pod_name)
      sandbox_specification.checksum == lockfile.checksum(pod_name)
    end
    LockingDependencyAnalyzer.generate_version_locking_dependencies(lockfile, deleted_and_changed, pods_to_unlock)
  end
end

#group_pod_targets_by_target_definition(pod_targets, resolver_specs_by_target) ⇒ Hash{TargetDefinition => Array<PodTarget>} (private)

Returns a filtered list of pod targets that should or should not be part of the target definition. Pod targets used by tests only are filtered.

Returns:

  • (Hash{TargetDefinition => Array<PodTarget>}) 


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# File 'lib/cocoapods/installer/analyzer.rb', line 533

def group_pod_targets_by_target_definition(pod_targets, resolver_specs_by_target)
  pod_targets_by_target_definition = Hash.new { |h, td| h[td] = [] }
  pod_targets.each do |pod_target|
    pod_target.target_definitions.each do |td|
      pod_targets_by_target_definition[td] << pod_target
    end
  end
  resolver_specs_by_target.each do |td, resolver_specs|
    specs_by_pod_name = resolver_specs.group_by { |s| s.root.name }
    specs_by_pod_name.reject! { |_, specs| specs.all?(&:used_by_non_library_targets_only?) }
    pod_targets_by_target_definition[td].keep_if { |pod_target| specs_by_pod_name.key?(pod_target.pod_name) }
  end

  pod_targets_by_target_definition
end

#inspect_targets_to_integrate ⇒ Hash{TargetDefinition => TargetInspectionResult} (private)

Note:

The platforms are computed and added to each target_definition because it might be necessary to infer the platform from the user targets.

Precompute information for each target_definition in the Podfile

Returns:



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# File 'lib/cocoapods/installer/analyzer.rb', line 1186

def inspect_targets_to_integrate
  inspection_result = {}
  UI.section 'Inspecting targets to integrate' do
    inspectors = @podfile_dependency_cache.target_definition_list.map do |target_definition|
      next if target_definition.abstract?
      TargetInspector.new(target_definition, config.installation_root)
    end.compact
    inspectors.group_by(&:compute_project_path).each do |project_path, target_inspectors|
      project = Xcodeproj::Project.open(project_path)
      target_inspectors.each do |inspector|
        target_definition = inspector.target_definition
        results = inspector.compute_results(project)
        inspection_result[target_definition] = results
        UI.message('Using `ARCHS` setting to build architectures of ' \
          "target `#{target_definition.label}`: (`#{results.archs.join('`, `')}`)")
      end
    end
  end
  inspection_result
end

#podfile_dependencies ⇒ Object (private) 



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# File 'lib/cocoapods/installer/analyzer.rb', line 217

def podfile_dependencies
  @podfile_dependency_cache.podfile_dependencies
end

#pods_to_fetch(podfile_state) ⇒ Object (private) 



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# File 'lib/cocoapods/installer/analyzer.rb', line 1028

def pods_to_fetch(podfile_state)
  @pods_to_fetch ||= begin
    pods_to_fetch = podfile_state.added + podfile_state.changed
    if update_mode == :selected
      pods_to_fetch += pods_to_update[:pods]
    elsif update_mode == :all
      pods_to_fetch += podfile_state.unchanged + podfile_state.deleted
    end
    pods_to_fetch += podfile_dependencies.
      select { |dep| Hash(dep.external_source).key?(:podspec) && sandbox.specification_path(dep.root_name).nil? }.
      map(&:root_name)
    pods_to_fetch
  end
end

#resolve_dependencies(locked_dependencies) ⇒ Hash{TargetDefinition => Array<Spec>} (private)

Note:

As some dependencies might have external sources the resolver is aware of the Sandbox and interacts with it to download the podspecs of the external sources. This is necessary because the resolver needs their specifications to analyze their dependencies.

Note:

The specifications of the external sources which are added, modified or removed need to deleted from the sandbox before the resolution process. Otherwise the resolver might use an incorrect specification instead of pre-downloading it.

Note:

In update mode the resolver is set to always update the specs from external sources.

Converts the Podfile in a list of specifications grouped by target.

Returns:

  • (Hash{TargetDefinition => Array<Spec>}) —

    the specifications grouped by target.



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# File 'lib/cocoapods/installer/analyzer.rb', line 1071

def resolve_dependencies(locked_dependencies)
  duplicate_dependencies = podfile_dependencies.group_by(&:name).
    select { |_name, dependencies| dependencies.count > 1 }
  duplicate_dependencies.each do |name, dependencies|
    UI.warn "There are duplicate dependencies on `#{name}` in #{UI.path podfile.defined_in_file}:\n\n" \
     "- #{dependencies.map(&:to_s).join("\n- ")}"
  end

  resolver_specs_by_target = nil
  UI.section "Resolving dependencies of #{UI.path(podfile.defined_in_file) || 'Podfile'}" do
    resolver = Pod::Resolver.new(sandbox, podfile, locked_dependencies, sources, @specs_updated, :sources_manager => sources_manager)
    resolver_specs_by_target = resolver.resolve
    resolver_specs_by_target.values.flatten(1).map(&:spec).each(&:validate_cocoapods_version)
  end
  resolver_specs_by_target
end

#sources ⇒ Array<Source>

Returns the sources used to query for specifications.

When no explicit Podfile sources or plugin sources are defined, this defaults to the master spec repository.

Returns:

  • (Array<Source>) —

    the sources to be used in finding specifications, as specified by the podfile or all sources.



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# File 'lib/cocoapods/installer/analyzer.rb', line 161

def sources
  @sources ||= begin
    sources = podfile.sources
    plugin_sources = @plugin_sources || []

    # Add any sources specified using the :source flag on individual dependencies.
    dependency_sources = podfile_dependencies.map(&:podspec_repo).compact
    all_dependencies_have_sources = dependency_sources.count == podfile_dependencies.count

    if all_dependencies_have_sources
      sources = dependency_sources
    elsif has_dependencies? && sources.empty? && plugin_sources.empty?
      sources = [Pod::TrunkSource::TRUNK_REPO_URL] + dependency_sources
    else
      sources += dependency_sources
    end

    result = sources.uniq.map do |source_url|
      sources_manager.find_or_create_source_with_url(source_url)
    end
    unless plugin_sources.empty?
      result.insert(0, *plugin_sources)
      plugin_sources.each do |source|
        sources_manager.add_source(source)
      end
    end
    result
  end
end

#store_existing_checkout_options ⇒ Object (private) 



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# File 'lib/cocoapods/installer/analyzer.rb', line 1043

def store_existing_checkout_options
  return unless lockfile
  podfile_dependencies.select(&:external_source).each do |dep|
    if checkout_options = lockfile.checkout_options_for_pod_named(dep.root_name)
      sandbox.store_checkout_source(dep.root_name, checkout_options)
    end
  end
end

#update_mode ⇒ Symbol (private)

Returns Whether and how the dependencies in the Podfile should be updated.

Returns:

  • (Symbol) —

    Whether and how the dependencies in the Podfile should be updated.



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# File 'lib/cocoapods/installer/analyzer.rb', line 207

def update_mode
  if !pods_to_update
    :none
  elsif pods_to_update == true
    :all
  elsif !pods_to_update[:pods].nil?
    :selected
  end
end

#update_mode? ⇒ Boolean (private)

Returns Whether the version of the dependencies which did not change in the Podfile should be locked.

Returns:

  • (Boolean) —

    Whether the version of the dependencies which did not change in the Podfile should be locked.



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# File 'lib/cocoapods/installer/analyzer.rb', line 200

def update_mode?
  pods_to_update != nil
end

#update_repositories ⇒ Object

Updates the git source repositories.



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# File 'lib/cocoapods/installer/analyzer.rb', line 143

def update_repositories
  sources.each do |source|
    if source.updateable?
      sources_manager.update(source.name, true)
    else
      UI.message "Skipping `#{source.name}` update because the repository is not an updateable repository."
    end
  end
  @specs_updated = true
end

#validate_lockfile_version! ⇒ Object (private)

Note:

The warning about the version of the Lockfile doesn't use the UI.warn method because it prints the output only at the end of the installation. At that time CocoaPods could have crashed.



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# File 'lib/cocoapods/installer/analyzer.rb', line 239

def validate_lockfile_version!
  if lockfile && lockfile.cocoapods_version > Version.new(VERSION)
    STDERR.puts '[!] The version of CocoaPods used to generate ' \
      "the lockfile (#{lockfile.cocoapods_version}) is "\
      "higher than the version of the current executable (#{VERSION}). " \
      'Incompatibility issues may arise.'.yellow
  end
end

#validate_platforms(resolver_specs_by_target) ⇒ Object (private)

Warns for any specification that is incompatible with its target.

Parameters:

  • resolver_specs_by_target (Hash{TargetDefinition => Array<Specification>}) —

    the resolved specifications grouped by target.



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# File 'lib/cocoapods/installer/analyzer.rb', line 1093

def validate_platforms(resolver_specs_by_target)
  resolver_specs_by_target.each do |target, specs|
    specs.map(&:spec).each do |spec|
      next unless target_platform = target.platform
      unless spec.available_platforms.any? { |p| target_platform.supports?(p) }
        UI.warn "The platform of the target `#{target.name}` "     \
          "(#{target.platform}) may not be compatible with `#{spec}` which has "  \
          "a minimum requirement of #{spec.available_platforms.join(' - ')}."
      end
    end
  end
end

#validate_podfile! ⇒ Object (private)

-----------------------------------------------------------------------#



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# File 'lib/cocoapods/installer/analyzer.rb', line 223

def validate_podfile!
  validator = Installer::PodfileValidator.new(podfile, @podfile_dependency_cache)
  validator.validate

  unless validator.valid?
    raise Informative, validator.message
  end
  validator.warnings.uniq.each { |w| UI.warn(w) }
end

#verify_no_pods_with_different_sources! ⇒ Object (private) 



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# File 'lib/cocoapods/installer/analyzer.rb', line 981

def verify_no_pods_with_different_sources!
  deps_with_different_sources = podfile_dependencies.group_by(&:root_name).
    select { |_root_name, dependencies| dependencies.map(&:external_source).uniq.count > 1 }
  deps_with_different_sources.each do |root_name, dependencies|
    raise Informative, 'There are multiple dependencies with different ' \
    "sources for `#{root_name}` in #{UI.path podfile.defined_in_file}:" \
    "\n\n- #{dependencies.map(&:to_s).join("\n- ")}"
  end
end

#verify_platforms_specified! ⇒ void (private)

This method returns an undefined value.

Checks whether the platform is specified if not integrating



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# File 'lib/cocoapods/installer/analyzer.rb', line 1169

def verify_platforms_specified!
  return if installation_options.integrate_targets?
  @podfile_dependency_cache.target_definition_list.each do |target_definition|
    if !target_definition.empty? && target_definition.platform.nil?
      raise Informative, 'It is necessary to specify the platform in the Podfile if not integrating.'
    end
  end
end