fatal: '$GIT_DIR' too big when using CMake's FetchContent feature

Question

I'm using CMake's FetchContent feature to fetch the esp-azure repo. While doing so I got the following:

Cloning into 'C:/code/my-repo/build/_deps/espazure-src/azure-iot-sdk-c/provisioning_client/deps/utpm/deps/c-utility/deps/umock-c/deps/ctest/deps/azure-macro-utils-c'...
fatal: '$GIT_DIR' too big
fatal: clone of 'https://github.com/Azure/azure-macro-utils-c.git' into submodule path 'C:/code/my-repo/build/_deps/espazure-src/azure-iot-sdk-c/provisioning_client/deps/utpm/deps/c-utility/deps/umock-c/deps/ctest/deps/azure-macro-utils-c' failed
Failed to clone 'deps/azure-macro-utils-c'. Retry scheduled

I tried defining git config core.longpaths true but that didn't help. My guess is that the cloned repositories have their own git configs and so the parameter is overwritten.

How can I tackle this?

Answer 1

I was facing this error so I tried with the command git clone <git-repo> <short-directory-name>

And this worked for me.

Giving shorter directory name to the cloned location helped