Class: Pod::Installer::ProjectCache::ProjectCacheAnalyzer

Inherits:
Object
  • Object
show all
Defined in:
lib/cocoapods/installer/project_cache/project_cache_analyzer.rb

Overview

Analyzes the project cache and computes which pod targets need to be generated.

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(sandbox, cache, build_configurations, project_object_version, podfile_plugins, pod_targets, aggregate_targets, installation_options, clean_install: false) ⇒ ProjectCacheAnalyzer

Initialize a new instance.

Parameters:

  • sandbox (Sandbox)

    @see #sandbox

  • cache (ProjectInstallationCache)

    @see #cache

  • build_configurations (Hash{String => Symbol})

    @see #build_configurations

  • project_object_version (Integer)

    @see #project_object_version

  • podfile_plugins (Hash<String, Hash>)

    @see #podfile_plugins

  • pod_targets (Array<PodTarget>)

    @see #pod_targets

  • aggregate_targets (Array<AggregateTarget>)

    @see #aggregate_targets

  • installation_options (Hash<Symbol, Object>)

    @see #installation_options

  • clean_install (Bool) (defaults to: false)

    @see #clean_install


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# File 'lib/cocoapods/installer/project_cache/project_cache_analyzer.rb', line 57

def initialize(sandbox, cache, build_configurations, project_object_version, podfile_plugins, pod_targets, aggregate_targets, installation_options,
               clean_install: false)
  @sandbox = sandbox
  @cache = cache
  @build_configurations = build_configurations
  @podfile_plugins = podfile_plugins
  @pod_targets = pod_targets
  @aggregate_targets = aggregate_targets
  @project_object_version = project_object_version
  @installation_options = installation_options
  @clean_install = clean_install
end

Instance Attribute Details

#aggregate_targetsArray<AggregateTarget> (readonly)

Returns The list of aggregate targets.

Returns:


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# File 'lib/cocoapods/installer/project_cache/project_cache_analyzer.rb', line 35

def aggregate_targets
  @aggregate_targets
end

#build_configurationsHash{String => Symbol} (readonly)

Returns The hash of user build configurations.

Returns:

  • (Hash{String => Symbol})

    The hash of user build configurations.


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# File 'lib/cocoapods/installer/project_cache/project_cache_analyzer.rb', line 19

def build_configurations
  @build_configurations
end

#cacheProjectInstallationCache (readonly)

Returns The cache of targets that were previously installed.

Returns:


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# File 'lib/cocoapods/installer/project_cache/project_cache_analyzer.rb', line 15

def cache
  @cache
end

#clean_installBool (readonly)

Returns Flag indicating if we want to ignore the cache and force a clean installation.

Returns:

  • (Bool)

    Flag indicating if we want to ignore the cache and force a clean installation.


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# File 'lib/cocoapods/installer/project_cache/project_cache_analyzer.rb', line 43

def clean_install
  @clean_install
end

#installation_optionsHash<Symbol, Object> (readonly)

Returns Hash of installation options.

Returns:

  • (Hash<Symbol, Object>)

    Hash of installation options.


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# File 'lib/cocoapods/installer/project_cache/project_cache_analyzer.rb', line 39

def installation_options
  @installation_options
end

#pod_targetsArray<PodTarget> (readonly)

Returns The list of pod targets.

Returns:

  • (Array<PodTarget>)

    The list of pod targets.


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# File 'lib/cocoapods/installer/project_cache/project_cache_analyzer.rb', line 31

def pod_targets
  @pod_targets
end

#podfile_pluginsHash<String, Hash> (readonly)

Returns The podfile plugins to be run for the installation.

Returns:

  • (Hash<String, Hash>)

    The podfile plugins to be run for the installation.


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# File 'lib/cocoapods/installer/project_cache/project_cache_analyzer.rb', line 27

def podfile_plugins
  @podfile_plugins
end

#project_object_versionInteger (readonly)

Returns The object version from the user project.

Returns:

  • (Integer)

    The object version from the user project.


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# File 'lib/cocoapods/installer/project_cache/project_cache_analyzer.rb', line 23

def project_object_version
  @project_object_version
end

#sandboxSandbox (readonly)

Returns Project sandbox.

Returns:


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# File 'lib/cocoapods/installer/project_cache/project_cache_analyzer.rb', line 11

def sandbox
  @sandbox
end

Instance Method Details

#analyzeProjectCacheAnalysisResult

Returns Compares all targets stored against the cache and computes which targets need to be regenerated.

Returns:

  • (ProjectCacheAnalysisResult)

    Compares all targets stored against the cache and computes which targets need to be regenerated.


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# File 'lib/cocoapods/installer/project_cache/project_cache_analyzer.rb', line 73

def analyze
  target_by_label = Hash[(pod_targets + aggregate_targets).map { |target| [target.label, target] }]
  cache_key_by_target_label = create_cache_key_mappings(target_by_label)

  full_install_results = ProjectCacheAnalysisResult.new(pod_targets, aggregate_targets, cache_key_by_target_label,
                                                        build_configurations, project_object_version)
  if clean_install
    UI.message 'Ignoring project cache from the provided `--clean-install` flag.'
    return full_install_results
  end

  # Bail out early since these properties affect all targets and their associate projects.
  if cache.build_configurations != build_configurations ||
      cache.project_object_version != project_object_version ||
      YAMLHelper.convert(cache.podfile_plugins) != YAMLHelper.convert(podfile_plugins) ||
      YAMLHelper.convert(cache.installation_options) != YAMLHelper.convert(installation_options)
    UI.message 'Ignoring project cache due to project configuration changes.'
    return full_install_results
  end

  if project_names_changed?(pod_targets, cache)
    UI.message 'Ignoring project cache due to project name changes.'
    return full_install_results
  end

  pod_targets_to_generate = Set[]
  aggregate_targets_to_generate = Set[]
  added_targets = compute_added_targets(target_by_label, cache_key_by_target_label.keys, cache.cache_key_by_target_label.keys)
  added_pod_targets, added_aggregate_targets = added_targets.partition { |target| target.is_a?(PodTarget) }
  pod_targets_to_generate.merge(added_pod_targets)
  aggregate_targets_to_generate.merge(added_aggregate_targets)

  removed_aggregate_target_labels = compute_removed_targets(cache_key_by_target_label.keys, cache.cache_key_by_target_label.keys)

  changed_targets = compute_changed_targets_from_cache(cache_key_by_target_label, target_by_label, cache)
  changed_pod_targets, changed_aggregate_targets = changed_targets.partition { |target| target.is_a?(PodTarget) }
  pod_targets_to_generate.merge(changed_pod_targets)
  aggregate_targets_to_generate.merge(changed_aggregate_targets)

  dirty_targets = compute_dirty_targets(pod_targets + aggregate_targets)
  dirty_pod_targets, dirty_aggregate_targets = dirty_targets.partition { |target| target.is_a?(PodTarget) }
  pod_targets_to_generate.merge(dirty_pod_targets)
  aggregate_targets_to_generate.merge(dirty_aggregate_targets)

  # Since multi xcodeproj will group targets by PodTarget#project_name into individual projects, we need to
  # append these "sibling" targets to the list of targets we need to generate before finalizing the total list,
  # otherwise we will end up with missing targets.
  #
  sibling_pod_targets = compute_sibling_pod_targets(pod_targets, pod_targets_to_generate)
  pod_targets_to_generate.merge(sibling_pod_targets)

  # We either return the full list of aggregate targets or none since the aggregate targets go into the
  # Pods.xcodeproj and so we need to regenerate all aggregate targets when regenerating Pods.xcodeproj.
  total_aggregate_targets_to_generate = unless aggregate_targets_to_generate.empty? && removed_aggregate_target_labels.empty?
                                          aggregate_targets
                                        end

  ProjectCacheAnalysisResult.new(pod_targets_to_generate.to_a, total_aggregate_targets_to_generate,
                                 cache_key_by_target_label, build_configurations, project_object_version)
end

#compute_added_targets(target_by_label, target_labels, cached_target_labels) ⇒ Object (private)


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# File 'lib/cocoapods/installer/project_cache/project_cache_analyzer.rb', line 152

def compute_added_targets(target_by_label, target_labels, cached_target_labels)
  (target_labels - cached_target_labels).map do |label|
    target_by_label[label]
  end
end

#compute_changed_targets_from_cache(cache_key_by_target_label, target_by_label, cache) ⇒ Object (private)


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# File 'lib/cocoapods/installer/project_cache/project_cache_analyzer.rb', line 162

def compute_changed_targets_from_cache(cache_key_by_target_label, target_by_label, cache)
  cache_key_by_target_label.each_with_object([]) do |(label, cache_key), changed_targets|
    next unless cache.cache_key_by_target_label[label]
    if cache_key.key_difference(cache.cache_key_by_target_label[label]) == :project
      changed_targets << target_by_label[label]
    end
  end
end

#compute_dirty_targets(targets) ⇒ Object (private)


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# File 'lib/cocoapods/installer/project_cache/project_cache_analyzer.rb', line 171

def compute_dirty_targets(targets)
  targets.reject do |target|
    support_files_dir_exists = File.exist? target.support_files_dir
    xcodeproj_exists = case target
                       when PodTarget
                         File.exist? sandbox.pod_target_project_path(target.project_name)
                       when AggregateTarget
                         File.exist? sandbox.project_path
                       else
                         raise "[BUG] Unknown target type #{target}"
                       end
    support_files_dir_exists && xcodeproj_exists
  end
end

#compute_removed_targets(target_labels, cached_target_labels) ⇒ Object (private)


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# File 'lib/cocoapods/installer/project_cache/project_cache_analyzer.rb', line 158

def compute_removed_targets(target_labels, cached_target_labels)
  cached_target_labels - target_labels
end

#compute_sibling_pod_targets(pod_targets, pod_targets_to_generate) ⇒ Object (private)


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# File 'lib/cocoapods/installer/project_cache/project_cache_analyzer.rb', line 186

def compute_sibling_pod_targets(pod_targets, pod_targets_to_generate)
  pod_targets_by_project_name = pod_targets.group_by(&:project_name)
  pod_targets_to_generate.flat_map { |t| pod_targets_by_project_name[t.project_name] }
end

#create_cache_key_mappings(target_by_label) ⇒ Object (private)


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# File 'lib/cocoapods/installer/project_cache/project_cache_analyzer.rb', line 136

def create_cache_key_mappings(target_by_label)
  Hash[target_by_label.map do |label, target|
    case target
    when PodTarget
      local = sandbox.local?(target.pod_name)
      checkout_options = sandbox.checkout_sources[target.pod_name]
      [label, TargetCacheKey.from_pod_target(sandbox, target, :is_local_pod => local,
                                                              :checkout_options => checkout_options)]
    when AggregateTarget
      [label, TargetCacheKey.from_aggregate_target(sandbox, target)]
    else
      raise "[BUG] Unknown target type #{target}"
    end
  end]
end

#project_names_changed?(pod_targets, cache) ⇒ Boolean (private)

Returns:

  • (Boolean)

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# File 'lib/cocoapods/installer/project_cache/project_cache_analyzer.rb', line 191

def project_names_changed?(pod_targets, cache)
  pod_targets.any? do |pod_target|
    next unless (target_cache_key = cache.cache_key_by_target_label[pod_target.label])
    target_cache_key.project_name != pod_target.project_name
  end
end