Ignore zlib submodule if its dirty (due to CMake)
When using CMake to build, the zlib submodule ends up with a generated
file that makes Git consider the submodule dirty. This state can be
ignored for day-to-day development on gRPC.
We cannot use the weaker "ignore = untracked" as the build process
deletes a tracked file as well as generating a new file.
diff --git a/.gitmodules b/.gitmodules
index c4b0d24..52db29b 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,6 +1,10 @@
[submodule "third_party/zlib"]
path = third_party/zlib
url = https://github.com/madler/zlib
+ # When using CMake to build, the zlib submodule ends up with a
+ # generated file that makes Git consider the submodule dirty. This
+ # state can be ignored for day-to-day development on gRPC.
+ ignore = dirty
[submodule "third_party/protobuf"]
path = third_party/protobuf
url = https://github.com/google/protobuf.git