[PATCH 1/2] fetch: Fix a bug swallowing the output of recursive submodule fetching

[Jens Lehmann <Jens.Lehmann@web.de>]

Due to a copy and paste bug only the first level of recursion was seen
when doing a "git fetch" on a nested submodule tree. Fix that and extend
t5526 to find such breakage in the future.

Reported-by: Kevin Ballard <kevin@sb.org>
Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
---
 submodule.c                 |    1 -
 t/t5526-fetch-submodules.sh |   30 +++++++++++++++++++++++++-----
 2 files changed, 25 insertions(+), 6 deletions(-)

diff --git a/submodule.c b/submodule.c
index 2380638..a62cae5 100644
--- a/submodule.c
+++ b/submodule.c
@@ -256,7 +256,6 @@ int fetch_populated_submodules(int forced)
 	cp.env = local_repo_env;
 	cp.git_cmd = 1;
 	cp.no_stdin = 1;
-	cp.out = -1;

 	for_each_string_list_item(name_for_path, &config_name_for_path) {
 		struct strbuf submodule_path = STRBUF_INIT;
diff --git a/t/t5526-fetch-submodules.sh b/t/t5526-fetch-submodules.sh
index 489ef1a..cabf118 100755
--- a/t/t5526-fetch-submodules.sh
+++ b/t/t5526-fetch-submodules.sh
@@ -16,29 +16,49 @@ add_upstream_commit() {
 		git add subfile &&
 		git commit -m new subfile &&
 		head2=$(git rev-parse --short HEAD) &&
-		echo "From $pwd/submodule" > ../expect.err
+		echo "From $pwd/submodule" > ../expect.err &&
+		echo "   $head1..$head2  master     -> origin/master" >> ../expect.err
+	)
+	(
+		cd deepsubmodule &&
+		head1=$(git rev-parse --short HEAD) &&
+		echo new >> deepsubfile &&
+		test_tick &&
+		git add deepsubfile &&
+		git commit -m new deepsubfile &&
+		head2=$(git rev-parse --short HEAD) &&
+		echo "From $pwd/deepsubmodule" >> ../expect.err &&
 		echo "   $head1..$head2  master     -> origin/master" >> ../expect.err
 	)
 }

 test_expect_success setup '
+	mkdir deepsubmodule &&
+	(
+		cd deepsubmodule &&
+		git init &&
+		echo deepsubcontent > deepsubfile &&
+		git add deepsubfile &&
+		git commit -m new deepsubfile
+	) &&
 	mkdir submodule &&
 	(
 		cd submodule &&
 		git init &&
 		echo subcontent > subfile &&
 		git add subfile &&
-		git commit -m new subfile
+		git submodule add "$pwd/deepsubmodule" deepsubmodule &&
+		git commit -a -m new
 	) &&
 	git submodule add "$pwd/submodule" submodule &&
 	git commit -am initial &&
 	git clone . downstream &&
 	(
 		cd downstream &&
-		git submodule init &&
-		git submodule update
+		git submodule update --init --recursive
 	) &&
-	echo "Fetching submodule submodule" > expect.out
+	echo "Fetching submodule submodule" > expect.out &&
+	echo "Fetching submodule deepsubmodule" >> expect.out
 '

 test_expect_success "fetch recurses into submodules" '
-- 
1.7.3.rc2.234.g00c0