Submodules

Edit

git config -f .gitmodules submodule.path/to/submodule.url https://submodule/new/url.git
git config -f .gitmodules submodule.path/to/submodule.branch develop
git config -f .gitmodules submodule.path/to/submodule.shallow true
git submodule sync
git submodule update --init --recursive --remote

List

# Either --file=.gitmodules or -f .gitmodules
git config --file=.gitmodules -l

Output:

submodule.path/to/submodule.path=path/to/submodule
submodule.path/to/submodule.url=https://submodule/url.git
submodule.path/to/submodule.branch=master

Remove

git submodule deinit path/to/submodule
git rm path/to/submodule
rm -rf .git/modules/path/to/submodule
git commit -m "Removed submodule [name]"

Source

Shallow

Error:

fatal: Fetched in submodule path '[path]', but it did not contain [SHA-1 hash]. Direct fetching of that commit failed.

This might be caused by a missing branch in the local checkout of the module, in which case it could be solved by using:

git remote set-branches origin missing-branch
git fetch --depth 1 origin missing-branch
git checkout missing-branch

If the exact commit is required, replace the branch name with the SHA-1 hash in git checkout.