Question

I am working on a GIT repository (called A here). It includes a submodule (called B here). When clone a new copy of A by

git clone --recursive <repository url for A>

A and B are cloned, but the version of B is out-of-date! No matter how I updated it by

git submodule update

When I cloned only B, it is up-to-date.

What is wrong? My git version is git version 1.7.7.5 (Apple Git-26), and my repository is on bitbucket.

Answer 1

While inside A, cd to dir where B is.

cd path/to/B/inside/A

Now you can checkout any commit that you want to have in A.

git checkout <branch or commit>

(You may need to fetch / pull the latest changes before this checkout.)

Now go back to the root dir of A, and commit the change.

cd -
git add path/to/B/inside/A
git commit -m "Update submodule B pointer."

From now on, git clone or git submodule update will checkout that commit.

Note that B is independent of A, so B can have any state in terms of branches, but as a submodule of A, it will point to the commit that A wants. This allows independent development of the two repos.