GgitSubmoduleUpdate

enum Ggit.SubmoduleUpdate

Describes how a submodule should be updated.

Name	Description
`GGIT_SUBMODULE_UPDATE_CHECKOUT`	Checkout the submodule.
`GGIT_SUBMODULE_UPDATE_REBASE`	Rebase the current branch onto the commit recorded in the superproject.
`GGIT_SUBMODULE_UPDATE_MERGE`	Merge the commit recorded in the superproject into the current branch.
`GGIT_SUBMODULE_UPDATE_NONE`	Do not update this submodule.
`GGIT_SUBMODULE_UPDATE_DEFAULT`	Not used except as static initializer when we don’t want any particular update rule to be specified.