Clash Royale CLAN TAG

git pull issue without user name

I hosted a third_party project on server-1/repo1.
This third_party project is added as ExternalProject in repo2 cmake (The real project). The repo2 is our work. Our build environment is docker based.
Inside Docker, I am able to clone the repo1 as per configuration of ExternalProject in repo2 cmake. However git pull aka "UpdateCommand" for External Project is failing. It is failing because I don't have git "user.name" and "user.email" set inside docker. As per my thinking, I don't need git "user.name" etc config inside docker for the third_party repo.

The git fetch works inside docker.
The git pull is going to add merge commit and probably that's why it need git "user.name" etc. To avoid this, I tried

git pull --no-commit,


but still land into this issue.

Does anybody have insight? The "User Name" for user inside Docker is "User" and There is no email for docker user "User".

Error on git pull:

git pull

Please tell me who you are.

Run

git config --global user.email "you@example.com"

git config --global user.name "Your Name"

to set your account's default identity. Omit --global to set the
identity only in this repository.

fatal: empty ident name (for ) not allowed

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