How to clone a git repo with its submodules recursively in Yocto

Question

Is there any other way to clone all the dependent folders in a Bitbake recipe file (similar to using recursive tag)? I'm currently doing it as below:

SRC_URI="git://[uri_a];...;name=a \
     git://[uri_b];...;destsuffix=git/a/b;name=b \
     git://[uri_c];...;destsuffix=git/a/b/c;name=c"

where "b" & "c" are sub modules of "a".

Answer 1

You have

gitsm:// 

You use it the same way that

git://

For more information, you can read about it here: http://www.yoctoproject.org/docs/latest/bitbake-user-manual/bitbake-user-manual.html#gitsm-fetcher

Answer 2

After trying gitsm without success, I manually prepended the fetching of the submodules to the configure step:

do_configure_prepend() {
  cd ${WORKDIR}/git
  git submodule update --init --recursive
}

Note: the same restrictions as gitsm apply, i.e.:

The Git Submodules fetcher is not a complete fetcher implementation. The fetcher has known issues where it does not use the normal source mirroring infrastructure properly. Further, the submodule sources it fetches are not visible to the licensing and source archiving infrastructures.