bash - Running a script that contains git commands using `git submodule foreach` causes a `not a git repository` error

Question

I'm using a few git submodules in my project, each with their own dependencies. I'm running the top level setup.sh, which installs top level deps and then runs this, which calls each submodule's setup.sh script.

git submodule foreach 'if [ -e "setup.sh" ]; then ${SUDO} "`pwd`/setup.sh"; fi'

That runs fine, but the problem arises when the sub1 and sub2 submodules call their own setup.sh script that does the exact same thing. When any git command is run by the sub1 and sub2 setup.sh script, it fails with the error:

fatal: not a git repository: '.git'

pwd in the sub1 and sub2 scripts give me the correct path, and the scripts work fine in isolation.

Project structure:

.
├── setup.sh
└── submodules
    ├── sub1
    |   ├── setup.sh
    |   └── submodules
    |       └── sub3
    |           └── setup.sh
    └── sub2
        ├── setup.sh
        └── submodules
            └── sub4
                └── setup.sh

Apologies if this is a stupid question, thanks a bunch.

Answer 1

等待大神答复