[build, darwin] Disable Xcode indexing-while-compiling on CI

Makefile

@@ -68,9 +68,13 @@ MACOS_USER_DATA_PATH = $(MACOS_WORK_PATH)/xcuserdata/$(USER).xcuserdatad
 MACOS_COMPDB_PATH = $(MACOS_OUTPUT_PATH)/compdb/$(BUILDTYPE)
 
 MACOS_XCODEBUILD = xcodebuild \
-	  -derivedDataPath $(MACOS_OUTPUT_PATH) \
-	  -configuration $(BUILDTYPE) \
-	  -workspace $(MACOS_WORK_PATH)
+	-derivedDataPath $(MACOS_OUTPUT_PATH) \
+	-configuration $(BUILDTYPE) \
+	-workspace $(MACOS_WORK_PATH)
+
+ifneq ($(CI),)
+	MACOS_XCODEBUILD += -xcconfig platform/darwin/ci.xcconfig
+endif
 
 $(MACOS_PROJ_PATH): $(BUILD_DEPS) $(MACOS_USER_DATA_PATH)/WorkspaceSettings.xcsettings
 	mkdir -p $(MACOS_OUTPUT_PATH)
@@ -201,11 +205,15 @@ IOS_WORK_PATH = platform/ios/ios.xcworkspace
 IOS_USER_DATA_PATH = $(IOS_WORK_PATH)/xcuserdata/$(USER).xcuserdatad
 
 IOS_XCODEBUILD_SIM = xcodebuild \
-	  ARCHS=x86_64 ONLY_ACTIVE_ARCH=YES \
-	  -derivedDataPath $(IOS_OUTPUT_PATH) \
-	  -configuration $(BUILDTYPE) -sdk iphonesimulator \
-	  -destination 'platform=iOS Simulator,name=iPhone 6,OS=latest' \
-	  -workspace $(IOS_WORK_PATH)
+	ARCHS=x86_64 ONLY_ACTIVE_ARCH=YES \
+	-derivedDataPath $(IOS_OUTPUT_PATH) \
+	-configuration $(BUILDTYPE) -sdk iphonesimulator \
+	-destination 'platform=iOS Simulator,name=iPhone 6,OS=latest' \
+	-workspace $(IOS_WORK_PATH)
+
+ifneq ($(CI),)
+	IOS_XCODEBUILD_SIM += -xcconfig platform/darwin/ci.xcconfig
+endif
 
 $(IOS_PROJ_PATH): $(IOS_USER_DATA_PATH)/WorkspaceSettings.xcsettings $(BUILD_DEPS)
 	mkdir -p $(IOS_OUTPUT_PATH)

cmake/mbgl.cmake

@@ -218,6 +218,10 @@ function(initialize_xcode_cxx_build_settings target)
 
     # Make all build configurations debuggable — except Release.
     set_xcode_property(${target} GCC_GENERATE_DEBUGGING_SYMBOLS $<$<NOT:$<CONFIG:Release>>:YES>)
+
+    if (DEFINED ENV{CI})
+        set_xcode_property(${target} COMPILER_INDEX_STORE_ENABLE NO)
+    endif()
 endfunction()
 
 # CMake 3.1 does not have this yet.

platform/darwin/ci.xcconfig

@@ -0,0 +1 @@
+COMPILER_INDEX_STORE_ENABLE = NO

platform/ios/scripts/package.sh

@@ -70,6 +70,13 @@ if [[ ${BUILD_STATIC} == true ]]; then
     SCHEME='static'
 fi
 
+CI_XCCONFIG=''
+if [[ ! -z "${CI:=}" ]]; then
+    xcconfig='platform/darwin/ci.xcconfig'
+    echo "CI environment, using ${xcconfig}"
+    CI_XCCONFIG="-xcconfig ./${xcconfig}"
+fi
+
 step "Building ${FORMAT} framework for iOS Simulator using ${SCHEME} scheme"
 xcodebuild \
     CURRENT_PROJECT_VERSION=${PROJ_VERSION} \
@@ -77,6 +84,7 @@ xcodebuild \
     CURRENT_SEMANTIC_VERSION=${SEM_VERSION} \
     CURRENT_COMMIT_HASH=${HASH} \
     ONLY_ACTIVE_ARCH=NO \
+    ${CI_XCCONFIG} \
     -derivedDataPath ${DERIVED_DATA} \
     -workspace ./platform/ios/ios.xcworkspace \
     -scheme ${SCHEME} \
@@ -92,6 +100,7 @@ if [[ ${BUILD_FOR_DEVICE} == true ]]; then
         CURRENT_SEMANTIC_VERSION=${SEM_VERSION} \
         CURRENT_COMMIT_HASH=${HASH} \
         ONLY_ACTIVE_ARCH=NO \
+        ${CI_XCCONFIG} \
         -derivedDataPath ${DERIVED_DATA} \
         -workspace ./platform/ios/ios.xcworkspace \
         -scheme ${SCHEME} \

platform/macos/scripts/package.sh

@@ -24,12 +24,20 @@ PROJ_VERSION=$(git rev-list --count HEAD)
 SEM_VERSION=$( git describe --tags --match=macos-v*.*.* --abbrev=0 | sed 's/^macos-v//' )
 SHORT_VERSION=${SEM_VERSION%-*}
 
+CI_XCCONFIG=''
+if [[ ! -z "${CI:=}" ]]; then
+    xcconfig='platform/darwin/ci.xcconfig'
+    echo "CI environment, using ${xcconfig}"
+    CI_XCCONFIG="-xcconfig ./${xcconfig}"
+fi
+
 step "Building dynamic framework (build ${PROJ_VERSION}, version ${SEM_VERSION})…"
 xcodebuild \
     CURRENT_PROJECT_VERSION=${PROJ_VERSION} \
     CURRENT_SHORT_VERSION=${SHORT_VERSION} \
     CURRENT_SEMANTIC_VERSION=${SEM_VERSION} \
     CURRENT_COMMIT_HASH=${HASH} \
+    ${CI_XCCONFIG} \
     -derivedDataPath ${DERIVED_DATA} \
     -archivePath "${APP_OUTPUT}/macosapp.xcarchive" \
     -workspace ./platform/macos/macos.xcworkspace \
@@ -53,6 +61,7 @@ if [[ ${BUILDTYPE} == Release ]]; then
         CURRENT_SHORT_VERSION=${SHORT_VERSION} \
         CURRENT_SEMANTIC_VERSION=${SEM_VERSION} \
         CURRENT_COMMIT_HASH=${HASH} \
+        ${CI_XCCONFIG} \
         -derivedDataPath ${DERIVED_DATA} \
         -archivePath "${APP_OUTPUT}/macosapp.xcarchive" \
         -workspace ./platform/macos/macos.xcworkspace \
@@ -89,6 +98,7 @@ if [[ ${BUILDTYPE} == Release ]]; then
     
     step "Exporting Mapbox GL.app"
     xcodebuild \
+        ${CI_XCCONFIG} \
         -exportArchive \
         -archivePath "${APP_OUTPUT}/macosapp.xcarchive" \
         -exportPath "${APP_OUTPUT}" \