submodule: don't pass empty string arguments to submodule--helper clone

When --reference or --depth are unused, the current git-submodule.sh
results in empty "" arguments appended to the end of the argv array
inside git submodule--helper clone. This is not caught because the argc
count is not checked today.

Fix git-submodule.sh to only pass an argument when --reference or
--depth are used, preventing the addition of two empty string arguments
on the tail of the argv array.

Signed-off-by: Jacob Keller <jacob.keller@gmail.com>
Reviewed-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Jacob Keller 2016-02-29 14:58:30 -08:00 committed by Junio C Hamano
parent 59223223f4
commit d10e3b4260

View File

@ -347,7 +347,7 @@ Use -f if you really want to add it." >&2
echo "$(eval_gettext "Reactivating local git directory for submodule '\$sm_name'.")"
fi
fi
git submodule--helper clone ${GIT_QUIET:+--quiet} --prefix "$wt_prefix" --path "$sm_path" --name "$sm_name" --url "$realrepo" "$reference" "$depth" || exit
git submodule--helper clone ${GIT_QUIET:+--quiet} --prefix "$wt_prefix" --path "$sm_path" --name "$sm_name" --url "$realrepo" ${reference:+"$reference"} ${depth:+"$depth"} || exit
(
clear_local_git_env
cd "$sm_path" &&
@ -709,7 +709,7 @@ Maybe you want to use 'update --init'?")"
if ! test -d "$sm_path"/.git && ! test -f "$sm_path"/.git
then
git submodule--helper clone ${GIT_QUIET:+--quiet} --prefix "$prefix" --path "$sm_path" --name "$name" --url "$url" "$reference" "$depth" || exit
git submodule--helper clone ${GIT_QUIET:+--quiet} --prefix "$prefix" --path "$sm_path" --name "$name" --url "$url" ${reference:+"$reference"} ${depth:+"$depth"} || exit
cloned_modules="$cloned_modules;$name"
subsha1=
else