[Validator] Validate that apps can import the Pod

lib/cocoapods/command/lib.rb

@@ -164,7 +164,7 @@ module Pod
             validator.validate
 
             unless @clean
-              UI.puts "Pods project available at `#{validator.validation_dir}/Pods/Pods.xcodeproj` for inspection."
+              UI.puts "Pods workspace available at `#{validator.validation_dir}/App.xcworkspace` for inspection."
               UI.puts
             end
             if validator.validated?

lib/cocoapods/command/spec/lint.rb

@@ -61,7 +61,7 @@ module Pod
             failure_reasons << validator.failure_reason
 
             unless @clean
-              UI.puts "Pods project available at `#{validator.validation_dir}/Pods/Pods.xcodeproj` for inspection."
+              UI.puts "Pods workspace available at `#{validator.validation_dir}/App.xcworkspace` for inspection."
               UI.puts
             end
           end

lib/cocoapods/installer/analyzer.rb

@@ -247,12 +247,12 @@ module Pod
         if config.integrate_targets?
           target_inspection = result.target_inspections[target_definition]
           target.user_project = target_inspection.project
-          target.client_root = target.user_project_path.dirname
+          target.client_root = target.user_project_path.dirname.realpath
           target.user_target_uuids = target_inspection.project_target_uuids
           target.user_build_configurations = target_inspection.build_configurations
           target.archs = target_inspection.archs
         else
-          target.client_root = config.installation_root
+          target.client_root = config.installation_root.realpath
           target.user_target_uuids = []
           target.user_build_configurations = target_definition.build_configurations || { 'Release' => :release, 'Debug' => :debug }
           if target_definition.platform && target_definition.platform.name == :osx

lib/cocoapods/validator.rb

@@ -257,17 +257,24 @@ module Pod
         UI.message "\n\n#{spec} - Analyzing on #{platform} platform.".green.reversed
         @consumer = spec.consumer(platform)
         setup_validation_environment
+        begin
+          create_app_project
           download_pod
           check_file_patterns
           install_pod
+          add_app_project_import
           validate_vendored_dynamic_frameworks
           build_pod
+        ensure
           tear_down_validation_environment
+        end
         validated?
       end
       return false if fail_fast && !valid
       perform_extensive_subspec_analysis(spec) unless @no_subspecs
     rescue => e
+      message = e.to_s
+      message << "\n" << e.backtrace.join("\n") << "\n" if config.verbose?
       error('unknown', "Encountered an unknown error (#{e}) during validation.")
       false
     end
@@ -340,10 +347,10 @@ module Pod
       validation_dir.mkpath
       @original_config = Config.instance.clone
       config.installation_root   = validation_dir
-      config.sandbox_root      = validation_dir + 'Pods'
       config.silent              = !config.verbose
-      config.integrate_targets = false
+      config.integrate_targets   = true
       config.skip_repo_update    = true
+      config.deterministic_uuids = false
     end
 
     def tear_down_validation_environment
@@ -361,13 +368,44 @@ module Pod
       @file_accessor = @installer.pod_targets.flat_map(&:file_accessors).find { |fa| fa.spec.name == consumer.spec.name }
     end
 
+    def create_app_project
+      app_project = Xcodeproj::Project.new(validation_dir + 'App.xcodeproj')
+      deployment_target = spec.subspec_by_name(subspec_name).deployment_target(consumer.platform_name)
+      app_project.new_target(:application, 'App', consumer.platform_name, deployment_target)
+      app_project.save
+      app_project.recreate_user_schemes
+      Xcodeproj::XCScheme.share_scheme(app_project.path, 'App')
+    end
+
+    def add_app_project_import
+      app_project = Xcodeproj::Project.open(validation_dir + 'App.xcodeproj')
+      pod_target = @installer.pod_targets.find { |pt| pt.pod_name == spec.root.name }
+      language = pod_target.uses_swift? ? :swift : :objc
+
+      if language == :swift
+        source_file = validation_dir.+('App/main.swift')
+        source_file.parent.mkpath
+        import_statement = use_frameworks ? "import #{pod_target.product_module_name}\n" : ''
+        source_file.open('w') { |f| f << import_statement }
+      else
+        source_file = validation_dir.+('App/main.m')
+        source_file.parent.mkpath
+        import_statement = use_frameworks ? "@import #{pod_target.product_module_name};\n" : ''
+        source_file.open('w') { |f| f << "@import Foundation;\n#{import_statement}int main() {}\n" }
+      end
+
+      source_file_ref = app_project.new_group('App', 'App').new_file(source_file)
+      app_project.targets.first.add_file_references([source_file_ref])
+      app_project.save
+    end
+
     # It creates a podfile in memory and builds a library containing the pod
     # for all available platforms with xcodebuild.
     #
     def install_pod
       %i(determine_dependency_product_types verify_no_duplicate_framework_names
          verify_no_static_framework_transitive_dependencies
-         verify_framework_usage generate_pods_project
+         verify_framework_usage generate_pods_project integrate_user_project
          perform_post_install_actions).each { |m| @installer.send(m) }
 
       deployment_target = spec.subspec_by_name(subspec_name).deployment_target(consumer.platform_name)
@@ -412,7 +450,7 @@ module Pod
         UI.warn "Skipping compilation with `xcodebuild' because it can't be found.\n".yellow
       else
         UI.message "\nBuilding with xcodebuild.\n".yellow do
-          output = Dir.chdir(config.sandbox_root) { xcodebuild }
+          output = xcodebuild
           UI.puts output
           parsed_output = parse_xcodebuild_output(output)
           parsed_output.each do |message|
@@ -631,18 +669,17 @@ module Pod
     #         returns its output (both STDOUT and STDERR).
     #
     def xcodebuild
-      command = 'xcodebuild clean build -target Pods'
-
+      command = %W(clean build -workspace App.xcworkspace -scheme App)
       case consumer.platform_name
       when :ios
-        command << ' CODE_SIGN_IDENTITY=- -sdk iphonesimulator'
+        command += %w(CODE_SIGN_IDENTITY=- -sdk iphonesimulator)
       when :watchos
-        command << ' CODE_SIGN_IDENTITY=- -sdk watchsimulator'
+        command += %w(CODE_SIGN_IDENTITY=- -sdk watchsimulator)
       when :tvos
-        command << ' CODE_SIGN_IDENTITY=- -sdk appletvsimulator'
+        command += %w(CODE_SIGN_IDENTITY=- -sdk appletvsimulator)
       end
 
-      output, status = _xcodebuild "#{command} 2>&1"
+      output, status = Dir.chdir(validation_dir) { _xcodebuild(command) }
 
       unless status.success?
         message = 'Returned an unsuccessful exit code.'
@@ -659,9 +696,8 @@ module Pod
     #         resulting status.
     #
     def _xcodebuild(command)
-      UI.puts command if config.verbose
-      output = `#{command}`
-      [output, $?]
+      UI.puts 'xcodebuild ' << command.join(' ') if config.verbose
+      Executable.capture_command('xcodebuild', command, capture: :merge)
     end
 
     #-------------------------------------------------------------------------#

spec/unit/validator_spec.rb

@@ -404,11 +404,11 @@ module Pod
         git = Executable.which(:git)
         Executable.stubs(:which).with('git').returns(git)
         Executable.expects(:which).with('xcodebuild').times(4).returns('/usr/bin/xcodebuild')
-        command = 'xcodebuild clean build -target Pods'
-        validator.expects(:`).with("#{command} 2>&1").once.returns('')
-        validator.expects(:`).with("#{command} CODE_SIGN_IDENTITY=- -sdk appletvsimulator 2>&1").once.returns('')
-        validator.expects(:`).with("#{command} CODE_SIGN_IDENTITY=- -sdk iphonesimulator 2>&1").once.returns('')
-        validator.expects(:`).with("#{command} CODE_SIGN_IDENTITY=- -sdk watchsimulator 2>&1").once.returns('')
+        command = %w(clean build -workspace App.xcworkspace -scheme App)
+        Executable.expects(:capture_command).with('xcodebuild', command, capture: :merge).once.returns(['', stub(:success? => true)])
+        Executable.expects(:capture_command).with('xcodebuild', command + %w(CODE_SIGN_IDENTITY=- -sdk appletvsimulator), capture: :merge).once.returns(['', stub(:success? => true)])
+        Executable.expects(:capture_command).with('xcodebuild', command + %w(CODE_SIGN_IDENTITY=- -sdk iphonesimulator), capture: :merge).once.returns(['', stub(:success? => true)])
+        Executable.expects(:capture_command).with('xcodebuild', command + %w(CODE_SIGN_IDENTITY=- -sdk watchsimulator), capture: :merge).once.returns(['', stub(:success? => true)])
         validator.validate
       end