Re: [PATCHv10 5/7] git submodule update: have a dedicated helper for cloning

This introduces a new helper function in git submodule--helper
which takes care of cloning all submodules, which we want to
parallelize eventually.

Some tests (such as empty URL, update_mode=none) are required in the
helper to make the decision for cloning. These checks have been
moved into the C function as well (no need to repeat them in the
shell script).

Signed-off-by: Stefan Beller <redacted>
---
 builtin/submodule--helper.c | 236 ++++++++++++++++++++++++++++++++++++++++++++
 git-submodule.sh            |  45 +++------
 2 files changed, 247 insertions(+), 34 deletions(-)

diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index f4c3eff..e865fca 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c

@@ -255,6 +255,241 @@ static int module_clone(int argc, const char **argv, const char *prefix)
        return 0;
 }

+static int git_submodule_config(const char *var, const char *value, void *cb)
+{
+       return submodule_config(var, value, cb);
+}