Go: fix Windows installation

.bazelrc

@@ -15,7 +15,8 @@ build:macos --cxxopt=-std=c++20 --cpu=darwin_x86_64
 build:windows --cxxopt=/std:c++20 --cxxopt=/Zc:preprocessor
 
 # this requires developer mode, but is required to have pack installer functioning
-common:windows --windows_enable_symlinks --enable_runfiles
+startup --windows_enable_symlinks
+common --enable_runfiles
 
 common --registry=file:///%workspace%/misc/bazel/registry
 common --registry=https://bcr.bazel.build

go/create_extractor_pack.py

@@ -13,10 +13,14 @@
 
 from go._extractor_pack_install_script import main
 
-if os.environ['REPO_NAME'] == 'codeql~':
+build_dir = workspace_dir / 'go' / 'build'
+
+if not build_dir.exists():
+    # we probably are in the internal repo
     workspace_dir /= 'ql'
+    build_dir = workspace_dir / 'go' / 'build'
 
-dest_dir = workspace_dir / 'go' / 'build' / 'codeql-extractor-pack'
+dest_dir = build_dir / 'codeql-extractor-pack'
 shutil.rmtree(dest_dir, ignore_errors=True)
 os.environ['DESTDIR'] = str(dest_dir)
 main(sys.argv)