make package builds work on kokoro
diff --git a/src/csharp/build_packages_dotnetcli.bat b/src/csharp/build_packages_dotnetcli.bat
index 4dd4947..7639173 100755
--- a/src/csharp/build_packages_dotnetcli.bat
+++ b/src/csharp/build_packages_dotnetcli.bat
@@ -19,17 +19,21 @@
set NUGET=C:\nuget\nuget.exe
set DOTNET=dotnet
-set -ex
-
mkdir ..\..\artifacts
@rem Collect the artifacts built by the previous build step if running on Jenkins
mkdir nativelibs
+@rem Jenkins flow (deprecated)
powershell -Command "cp -r ..\..\platform=*\artifacts\csharp_ext_* nativelibs"
+@rem Kokoro flow
+powershell -Command "cp -r ..\..\input_artifacts\csharp_ext_* nativelibs"
@rem Collect protoc artifacts built by the previous build step
mkdir protoc_plugins
+@rem Jenkins flow (deprecated)
powershell -Command "cp -r ..\..\platform=*\artifacts\protoc_* protoc_plugins"
+@rem Kokoro flow
+powershell -Command "cp -r ..\..\input_artifacts\protoc_* protoc_plugins"
%DOTNET% restore Grpc.sln || goto :error
diff --git a/src/csharp/build_packages_dotnetcli.sh b/src/csharp/build_packages_dotnetcli.sh
index e3f8463..1b73614 100755
--- a/src/csharp/build_packages_dotnetcli.sh
+++ b/src/csharp/build_packages_dotnetcli.sh
@@ -21,11 +21,17 @@
# Collect the artifacts built by the previous build step
mkdir -p nativelibs
+# Jenkins flow (deprecated)
cp -r $EXTERNAL_GIT_ROOT/platform={windows,linux,macos}/artifacts/csharp_ext_* nativelibs || true
+# Kokoro flow
+cp -r $EXTERNAL_GIT_ROOT/input_artifacts/csharp_ext_* nativelibs || true
# Collect protoc artifacts built by the previous build step
mkdir -p protoc_plugins
+# Jenkins flow (deprecated)
cp -r $EXTERNAL_GIT_ROOT/platform={windows,linux,macos}/artifacts/protoc_* protoc_plugins || true
+# Kokoro flow
+cp -r $EXTERNAL_GIT_ROOT/input_artifacts/protoc_* protoc_plugins || true
dotnet restore Grpc.sln