This is a submodule . Basically, this is a pointer to a specific commit of another repository.
You can usually rely on a submodule in the following (non-exhaustive) list of situations
- avoid code duplication
- indicate dependency with another project at a very specific point in time
You can find more detailed information about submodules by reading the following resources.
The following is an example of how GitHub currently displays a submodule. To the right of the name, you will notice the abbreviated form commit sha ( 7a361e9
) referenced by this submodule.
source share