Better static frameworks transitive dependency error checking

CHANGELOG.md

@@ -22,6 +22,10 @@ To install release candidates run `[sudo] gem install cocoapods --pre`
 
 ##### Bug Fixes
 
+* Better static frameworks transitive dependency error checking  
+  [Paul Beusterien](https://github.com/paulb777)
+  [#7352](https://github.com/CocoaPods/CocoaPods/issues/7352)
+
 * Always update input/output paths even if they are empty  
   [Dimitris Koutsogiorgas](https://github.com/dnkoutso)
   [#7368](https://github.com/CocoaPods/CocoaPods/pull/7368)

lib/cocoapods/installer/xcode/target_validator.rb

@@ -71,16 +71,22 @@ module Pod
             next unless aggregate_target.requires_frameworks?
 
             aggregate_target.user_build_configurations.keys.each do |config|
-              pod_targets = aggregate_target.pod_targets_for_build_configuration(config)
+              dynamic_pod_targets = aggregate_target.pod_targets_for_build_configuration(config).reject(&:static_framework?)
 
-              dependencies = pod_targets.select(&:should_build?).reject(&:static_framework?).flat_map(&:dependencies)
-              depended_upon_targets = pod_targets.select { |t| dependencies.include?(t.pod_name) && !t.should_build? }
+              dependencies = dynamic_pod_targets.select(&:should_build?).flat_map(&:dependencies)
+              depended_upon_targets = dynamic_pod_targets.select { |t| dependencies.include?(t.pod_name) && !t.should_build? }
 
               static_libs = depended_upon_targets.flat_map(&:file_accessors).flat_map(&:vendored_static_artifacts)
               unless static_libs.empty?
                 raise Informative, "The '#{aggregate_target.label}' target has " \
                   "transitive dependencies that include static binaries: (#{static_libs.to_sentence})"
               end
+
+              static_framework_deps = dynamic_pod_targets.select(&:should_build?).flat_map(&:recursive_dependent_targets).select(&:static_framework?)
+              unless static_framework_deps.empty?
+                raise Informative, "The '#{aggregate_target.label}' target has " \
+                  "transitive dependencies that include static frameworks: (#{static_framework_deps.flat_map(&:name).to_sentence})"
+              end
             end
           end
         end

spec/fixtures/matryoshka/matryoshka.podspec

@@ -7,7 +7,6 @@ Pod::Spec.new do |s|
   s.homepage         = "http://httpbin.org/html"
   s.source           = { :git => "http://malyutin.local/matryoshka.git", :tag => s.version.to_s }
   s.license          = 'MIT'
-  s.static_framework = true
 
   s.source_files = 'Outmost.{h,m}'
 

spec/fixtures/static-matryoshka/matryoshka.podspec

+Pod::Spec.new do |s|
+  s.name             = "matryoshka"
+  s.version          = "1.0.0"
+  s.author           = { "Matryona Malyutin" => "matryona@malyutin.local" }
+  s.summary          = "👩‍👩‍👧"
+  s.description      = "Four levels: outmost (root), outer, inner"
+  s.homepage         = "http://httpbin.org/html"
+  s.source           = { :git => "http://malyutin.local/matryoshka.git", :tag => s.version.to_s }
+  s.license          = 'MIT'
+  s.static_framework = true
+
+  s.source_files = 'Outmost.{h,m}'
+  s.dependency 'monkey'
+end

spec/unit/installer/xcode/target_validator_spec.rb

@@ -172,6 +172,57 @@ module Pod
             @validator = create_validator(config.sandbox, @podfile, @lockfile)
             should.not.raise(Informative) { @validator.validate! }
           end
+        end
+
+        describe '#verify_no_incorrect_static_framework_transitive_dependencies_with_static_frameworks' do
+          before do
+            fixture_path = ROOT + 'spec/fixtures'
+            config.repos_dir = fixture_path + 'spec-repos'
+            @podfile = Pod::Podfile.new do
+              install! 'cocoapods', 'integrate_targets' => false
+              platform :ios, '8.0'
+              project 'SampleProject/SampleProject'
+              use_frameworks!
+              pod 'BananaLib',       :path => (fixture_path + 'banana-lib').to_s
+              pod 'CoconutLib',      :path => (fixture_path + 'coconut-lib').to_s
+              pod 'OrangeFramework', :path => (fixture_path + 'orange-framework').to_s
+              pod 'matryoshka',      :path => (fixture_path + 'static-matryoshka').to_s
+              pod 'monkey',          :path => (fixture_path + 'monkey').to_s
+              target 'SampleProject'
+            end
+            @lockfile = generate_lockfile
+
+            @file = Pathname('/yolo.m')
+            @file.stubs(:realpath).returns(@file)
+
+            @lib_thing = Pathname('/libThing.a')
+            @lib_thing.stubs(:realpath).returns(@lib_thing)
+          end
+
+          it 'detects transitive static dependencies which are linked directly to the user target' do
+            @validator = create_validator(config.sandbox, @podfile, @lockfile)
+            should.raise(Informative) { @validator.validate! }.message.should.match /transitive.*monkey.a/
+          end
+
+          it 'detects transitive static dependencies which are linked directly to the user target with stubbing' do
+            Sandbox::FileAccessor.any_instance.stubs(:vendored_libraries).returns([@lib_thing])
+            @validator = create_validator(config.sandbox, @podfile, @lockfile)
+            should.raise(Informative) { @validator.validate! }.message.should.match /transitive.*libThing/
+          end
+
+          it 'detects transitive static dependencies to static frameworks from dynamic library pods' do
+            Sandbox::FileAccessor.any_instance.stubs(:source_files).returns([@file])
+            Sandbox::FileAccessor.any_instance.stubs(:vendored_libraries).returns([@lib_thing])
+            @validator = create_validator(config.sandbox, @podfile, @lockfile)
+            should.raise(Informative) { @validator.validate! }.message.should.match /transitive.*matryoshka/
+          end
+
+          it 'allows transitive static dependencies when both dependencies are linked against the user target' do
+            PodTarget.any_instance.stubs(:should_build? => false)
+            Sandbox::FileAccessor.any_instance.stubs(:vendored_libraries).returns([@lib_thing])
+            @validator = create_validator(config.sandbox, @podfile, @lockfile)
+            should.not.raise(Informative) { @validator.validate! }
+          end
 
           it 'allows transitive static dependencies when building a static framework' do
             PodTarget.any_instance.stubs(:static_framework? => true)
@@ -190,7 +241,7 @@ module Pod
               platform :ios, '8.0'
               project 'SampleProject/SampleProject'
               use_frameworks!
-              pod 'matryoshka/Bar',  :path => (fixture_path + 'matryoshka').to_s
+              pod 'matryoshka',      :path => (fixture_path + 'static-matryoshka').to_s
               pod 'monkey',          :path => (fixture_path + 'monkey').to_s
               target 'SampleProject'
             end