fetch/pull: Add the 'on-demand' value to the --recurse-submodules option
Until now the --recurse-submodules option could only be used to either
fetch all populated submodules recursively or to disable recursion
completely. As fetch and pull now by default just fetch those submodules
for which new commits have been fetched in the superproject, a command
line option to enforce that behavior is needed to be able to override
configuration settings.
Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/t/t5526-fetch-submodules.sh b/t/t5526-fetch-submodules.sh
index 6d92f7a..4cd723c 100755
--- a/t/t5526-fetch-submodules.sh
+++ b/t/t5526-fetch-submodules.sh
@@ -301,4 +301,75 @@
test_cmp expect.out actual.out
'
+test_expect_success "'--recurse-submodules=on-demand' doesn't recurse when no new commits are fetched in the superproject (and ignores config)" '
+ add_upstream_commit &&
+ (
+ cd submodule &&
+ (
+ cd deepsubmodule &&
+ git fetch &&
+ git checkout -q FETCH_HEAD
+ ) &&
+ head1=$(git rev-parse --short HEAD^) &&
+ git add deepsubmodule &&
+ git commit -m "new deepsubmodule"
+ head2=$(git rev-parse --short HEAD) &&
+ echo "From $pwd/submodule" > ../expect.err.sub &&
+ echo " $head1..$head2 master -> origin/master" >> ../expect.err.sub
+ ) &&
+ (
+ cd downstream &&
+ git config fetch.recurseSubmodules true &&
+ git fetch --recurse-submodules=on-demand >../actual.out 2>../actual.err &&
+ git config --unset fetch.recurseSubmodules
+ ) &&
+ ! test -s actual.out &&
+ ! test -s actual.err
+'
+
+test_expect_success "'--recurse-submodules=on-demand' recurses as deep as necessary (and ignores config)" '
+ head1=$(git rev-parse --short HEAD) &&
+ git add submodule &&
+ git commit -m "new submodule" &&
+ head2=$(git rev-parse --short HEAD) &&
+ tail -2 expect.err > expect.err.deepsub &&
+ echo "From $pwd/." > expect.err &&
+ echo " $head1..$head2 master -> origin/master" >> expect.err
+ cat expect.err.sub >> expect.err &&
+ cat expect.err.deepsub >> expect.err &&
+ (
+ cd downstream &&
+ git config fetch.recurseSubmodules false &&
+ (
+ cd submodule &&
+ git config -f .gitmodules submodule.deepsubmodule.fetchRecursive false
+ ) &&
+ git fetch --recurse-submodules=on-demand >../actual.out 2>../actual.err &&
+ git config --unset fetch.recurseSubmodules
+ (
+ cd submodule &&
+ git config --unset -f .gitmodules submodule.deepsubmodule.fetchRecursive
+ )
+ ) &&
+ test_cmp expect.out actual.out &&
+ test_cmp expect.err actual.err
+'
+
+test_expect_success "'--recurse-submodules=on-demand' stops when no new submodule commits are found in the superproject (and ignores config)" '
+ add_upstream_commit &&
+ head1=$(git rev-parse --short HEAD) &&
+ echo a >> file &&
+ git add file &&
+ git commit -m "new file" &&
+ head2=$(git rev-parse --short HEAD) &&
+ echo "From $pwd/." > expect.err.file &&
+ echo " $head1..$head2 master -> origin/master" >> expect.err.file &&
+ (
+ cd downstream &&
+ git fetch --recurse-submodules=on-demand >../actual.out 2>../actual.err
+ ) &&
+ ! test -s actual.out &&
+ test_cmp expect.err.file actual.err
+'
+
test_done
