Every time I switch to different branch via SourceTree it executes this command (besides switching branch command)
git -c diff.mnemonicprefix=false -c core.quotepath=false -c credential.helper=sourcetree submodule update --init --recursive
What's the point of it?
A submodule is referenced in the parent repo as a gitlink, a special entry in the index, which points to the SHA1 of the sub-repo.
Whenever you are switching branch, that entry can change, meaning the sub-repo should be checked out again, at a different SHA1.
That is exactly what a git submodule update --init does.
the
initandupdatesubcommands will maintain submodules checked out and at appropriate revision in your working tree.
