Xcode: Add support for embedding app extensions

Co-Authored-By: Craig Scott <craig.scott@crascit.com>

9 files changed, 94 insertions, 1 deletions

diff --git a/Tests/RunCMake/CMakeLists.txt b/Tests/RunCMake/CMakeLists.txt
index 354a04e..68db0f2 100644
--- a/Tests/RunCMake/CMakeLists.txt
+++ b/Tests/RunCMake/CMakeLists.txt
@@ -545,7 +545,7 @@ endif()
 
 if(XCODE_VERSION)
   add_RunCMake_test(XcodeProject -DXCODE_VERSION=${XCODE_VERSION})
-  add_RunCMake_test(XcodeProject-Embed)
+  add_RunCMake_test(XcodeProject-Embed -DXCODE_VERSION=${XCODE_VERSION})
 
   # This test can take a very long time due to lots of combinations.
   # Use a long default timeout and provide an option to customize it.
diff --git a/Tests/RunCMake/XcodeProject-Embed/EmbedAppExtensions-iOS-check.cmake b/Tests/RunCMake/XcodeProject-Embed/EmbedAppExtensions-iOS-check.cmake
new file mode 100644
index 0000000..576be11
--- /dev/null
+++ b/Tests/RunCMake/XcodeProject-Embed/EmbedAppExtensions-iOS-check.cmake
@@ -0,0 +1,4 @@
+include(${CMAKE_CURRENT_LIST_DIR}/findAttribute.cmake)
+
+findAttribute(${test} "RemoveHeadersOnCopy" TRUE)
+findAttribute(${test} "CodeSignOnCopy" FALSE)
diff --git a/Tests/RunCMake/XcodeProject-Embed/EmbedAppExtensions-iOS.cmake b/Tests/RunCMake/XcodeProject-Embed/EmbedAppExtensions-iOS.cmake
new file mode 100644
index 0000000..839f842
--- /dev/null
+++ b/Tests/RunCMake/XcodeProject-Embed/EmbedAppExtensions-iOS.cmake
@@ -0,0 +1 @@
+include(${CMAKE_CURRENT_LIST_DIR}/EmbedAppExtensions.cmake)
diff --git a/Tests/RunCMake/XcodeProject-Embed/EmbedAppExtensions-macOS-check.cmake b/Tests/RunCMake/XcodeProject-Embed/EmbedAppExtensions-macOS-check.cmake
new file mode 100644
index 0000000..576be11
--- /dev/null
+++ b/Tests/RunCMake/XcodeProject-Embed/EmbedAppExtensions-macOS-check.cmake
@@ -0,0 +1,4 @@
+include(${CMAKE_CURRENT_LIST_DIR}/findAttribute.cmake)
+
+findAttribute(${test} "RemoveHeadersOnCopy" TRUE)
+findAttribute(${test} "CodeSignOnCopy" FALSE)
diff --git a/Tests/RunCMake/XcodeProject-Embed/EmbedAppExtensions-macOS.cmake b/Tests/RunCMake/XcodeProject-Embed/EmbedAppExtensions-macOS.cmake
new file mode 100644
index 0000000..839f842
--- /dev/null
+++ b/Tests/RunCMake/XcodeProject-Embed/EmbedAppExtensions-macOS.cmake
@@ -0,0 +1 @@
+include(${CMAKE_CURRENT_LIST_DIR}/EmbedAppExtensions.cmake)
diff --git a/Tests/RunCMake/XcodeProject-Embed/EmbedAppExtensions.cmake b/Tests/RunCMake/XcodeProject-Embed/EmbedAppExtensions.cmake
new file mode 100644
index 0000000..d7494ea
--- /dev/null
+++ b/Tests/RunCMake/XcodeProject-Embed/EmbedAppExtensions.cmake
@@ -0,0 +1,21 @@
+add_library(app_extension MODULE Empty.txt)
+set_target_properties(app_extension PROPERTIES
+  LINKER_LANGUAGE CXX
+  BUNDLE YES
+  XCODE_ATTRIBUTE_CODE_SIGNING_ALLOWED "NO"
+  XCODE_ATTRIBUTE_CODE_SIGN_IDENTITY ""
+  XCODE_ATTRIBUTE_ENABLE_BITCODE "NO"
+  MACOSX_BUNDLE_INFO_PLIST "${CMAKE_CURRENT_SOURCE_DIR}/Info.plist.in"
+  MACOSX_BUNDLE_GUI_IDENTIFIER "com.example.app.app_extension"
+  XCODE_PRODUCT_TYPE "com.apple.product-type.app-extension"
+  XCODE_EXPLICIT_FILE_TYPE "wrapper.app-extension"
+)
+
+add_executable(app MACOSX_BUNDLE main.m)
+add_dependencies(app app_extension)
+set_target_properties(app PROPERTIES
+  XCODE_ATTRIBUTE_CODE_SIGNING_ALLOWED "NO"
+  XCODE_ATTRIBUTE_CODE_SIGN_IDENTITY ""
+  XCODE_EMBED_APP_EXTENSIONS app_extension
+  MACOSX_BUNDLE_GUI_IDENTIFIER "com.example.app"
+)
diff --git a/Tests/RunCMake/XcodeProject-Embed/Empty.txt b/Tests/RunCMake/XcodeProject-Embed/Empty.txt
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/Tests/RunCMake/XcodeProject-Embed/Empty.txt
diff --git a/Tests/RunCMake/XcodeProject-Embed/Info.plist.in b/Tests/RunCMake/XcodeProject-Embed/Info.plist.in
new file mode 100644
index 0000000..a26f316
--- /dev/null
+++ b/Tests/RunCMake/XcodeProject-Embed/Info.plist.in
@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>CFBundleDevelopmentRegion</key>
+	<string>$(DEVELOPMENT_LANGUAGE)</string>
+	<key>CFBundleDisplayName</key>
+    <string>SomeExtension</string>
+	<key>CFBundleExecutable</key>
+	<string>$(EXECUTABLE_NAME)</string>
+	<key>CFBundleIdentifier</key>
+    <string>com.example.app.app_extension</string>
+	<key>CFBundleInfoDictionaryVersion</key>
+	<string>6.0</string>
+	<key>CFBundleName</key>
+	<string>app</string>
+	<key>CFBundlePackageType</key>
+	<string>XPC!</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0.0</string>
+	<key>CFBundleVersion</key>
+	<string>1.0.0</string>
+	<key>NSExtension</key>
+	<dict>
+		<key>NSExtensionPointIdentifier</key>
+        <string>com.apple.widgetkit-extension</string>
+		<key>NSExtensionPrincipalClass</key>
+        <string>SomeExtensionBrowserViewController</string>
+	</dict>
+</dict>
+</plist>
diff --git a/Tests/RunCMake/XcodeProject-Embed/RunCMakeTest.cmake b/Tests/RunCMake/XcodeProject-Embed/RunCMakeTest.cmake
index 0dc1cf3..e94d084 100644
--- a/Tests/RunCMake/XcodeProject-Embed/RunCMakeTest.cmake
+++ b/Tests/RunCMake/XcodeProject-Embed/RunCMakeTest.cmake
@@ -41,3 +41,34 @@ endfunction()
 
 TestFlagsOn(EmbedFrameworksFlagsOnNoSubdir)
 TestFlagsOn(EmbedFrameworksFlagsOnWithSubdir)
+
+
+function(TestAppExtension platform)
+  set(testName EmbedAppExtensions-${platform})
+  if(NOT platform STREQUAL "macOS")
+    set(RunCMake_TEST_OPTIONS -DCMAKE_SYSTEM_NAME=${platform})
+  endif()
+  set(RunCMake_TEST_NO_CLEAN 1)
+  set(RunCMake_TEST_BINARY_DIR ${RunCMake_BINARY_DIR}/${testName}-build)
+
+  file(REMOVE_RECURSE "${RunCMake_TEST_BINARY_DIR}")
+  file(MAKE_DIRECTORY "${RunCMake_TEST_BINARY_DIR}")
+
+  run_cmake(${testName})
+  run_cmake_command(${testName}-build
+    ${CMAKE_COMMAND} --build ${RunCMake_TEST_BINARY_DIR}
+                     --config Debug
+                     --target app
+  )
+endfunction()
+
+# Isolate device tests from host architecture selection.
+unset(ENV{CMAKE_OSX_ARCHITECTURES})
+
+if(XCODE_VERSION VERSION_GREATER_EQUAL 8)
+  # The various flag on/off combinations are tested by the EmbedFrameworks...
+  # tests, so we don't duplicate all the combinations here. We only verify the
+  # defaults, which is to remove headers on copy, but not code sign.
+  TestAppExtension(macOS)
+  TestAppExtension(iOS)
+endif()