Build indexstore-db and sourcekit-lsp in a unified build

Author: ahoppen

utils/build_swift/resources/SwiftPM-Unified-Build.xcworkspace/contents.xcworkspacedata

@@ -12,6 +12,8 @@
 
 import os
 
+from build_swift.build_swift.constants import MULTIROOT_DATA_FILE_PATH
+
 from . import cmark
 from . import foundation
 from . import libcxx
@@ -41,6 +43,10 @@ def is_build_script_impl_product(cls):
     def is_before_build_script_impl_product(cls):
         return False
 
+    @classmethod
+    def is_swiftpm_unified_build_product(cls):
+        return True
+
     def should_build(self, host_target):
         return True
 
@@ -95,6 +101,7 @@ def run_build_script_helper(action, host_target, product, args,
         '--configuration', configuration,
         '--toolchain', toolchain_path,
         '--ninja-bin', product.toolchain.ninja,
+        '--multiroot-data-file', MULTIROOT_DATA_FILE_PATH,
     ]
     if args.verbose_build:
         helper_cmd.append('--verbose')

utils/swift_build_support/swift_build_support/products/indexstoredb.py

@@ -37,6 +37,10 @@ def is_build_script_impl_product(cls):
     def is_before_build_script_impl_product(cls):
         return False
 
+    @classmethod
+    def is_swiftpm_unified_build_product(cls):
+        return True
+
     def should_build(self, host_target):
         return True