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From: Stefan Beller <sbeller@google.com>
To: git@vger.kernel.org
Cc: jrnieder@gmail.com, Stefan Beller <sbeller@google.com>
Subject: [PATCH 5/5] submodule: submodule_move_head omits old argument in forced case
Date: Tue, 19 Dec 2017 14:26:36 -0800
Message-ID: <20171219222636.216001-6-sbeller@google.com> (raw)
In-Reply-To: <20171219222636.216001-1-sbeller@google.com>

With the previous patch applied (fix of the same() function), the
function `submodule_move_head` may be invoked with the same argument
for the `old` and `new` state of a submodule, for example when you
run `reset --hard --recurse-submodules` in the superproject that has no
change in the gitlink entry, but only worktree related change in the
submodule. The read-tree call in the submodule is not amused about
the duplicate argument.

It turns out that we can omit the duplicate old argument in all forced
cases anyway, so let's do that.

Signed-off-by: Stefan Beller <sbeller@google.com>
---
 submodule.c               | 4 +++-
 t/lib-submodule-update.sh | 2 +-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/submodule.c b/submodule.c
index fa25888783..db0f7ac51e 100644
--- a/submodule.c
+++ b/submodule.c
@@ -1653,7 +1653,9 @@ int submodule_move_head(const char *path,
 	else
 		argv_array_push(&cp.args, "-m");
 
-	argv_array_push(&cp.args, old ? old : EMPTY_TREE_SHA1_HEX);
+	if (!(flags & SUBMODULE_MOVE_HEAD_FORCE))
+		argv_array_push(&cp.args, old ? old : EMPTY_TREE_SHA1_HEX);
+
 	argv_array_push(&cp.args, new ? new : EMPTY_TREE_SHA1_HEX);
 
 	if (run_command(&cp)) {
diff --git a/t/lib-submodule-update.sh b/t/lib-submodule-update.sh
index 15cf3e0b8b..7b6661cc84 100755
--- a/t/lib-submodule-update.sh
+++ b/t/lib-submodule-update.sh
@@ -1016,7 +1016,7 @@ test_submodule_forced_switch_recursing_with_args () {
 		)
 	'
 
-	test_expect_failure "$command: changed submodule worktree is reset" '
+	test_expect_success "$command: changed submodule worktree is reset" '
 		prolog &&
 		reset_work_tree_to_interested add_sub1 &&
 		(
-- 
2.15.1.620.gb9897f4670-goog


  parent reply index

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-12-19 22:26 [PATCH 0/5] Fix --recurse-submodules for submodule worktree changes Stefan Beller
2017-12-19 22:26 ` [PATCH 1/5] t/lib-submodule-update.sh: clarify test Stefan Beller
2017-12-19 22:26 ` [PATCH 2/5] t/lib-submodule-update.sh: Fix test ignoring ignored files in submodules Stefan Beller
2017-12-22 19:34   ` Junio C Hamano
2017-12-27 19:27     ` Stefan Beller
2017-12-19 22:26 ` [PATCH 3/5] t/lib-submodule-update.sh: add new test for submodule internal change Stefan Beller
2017-12-19 22:31   ` Jonathan Nieder
2017-12-19 22:35     ` Stefan Beller
2017-12-19 22:26 ` [PATCH 4/5] unpack-trees: Fix same() for submodules Stefan Beller
2017-12-19 22:26 ` Stefan Beller [this message]
2017-12-19 22:44   ` [PATCH 5/5] submodule: submodule_move_head omits old argument in forced case Jonathan Nieder
2017-12-19 22:54     ` Stefan Beller
2017-12-19 23:15       ` Jonathan Nieder
2017-12-20  0:01       ` Jonathan Nieder
2017-12-20 19:36         ` Stefan Beller
2017-12-20 19:38           ` Stefan Beller
2017-12-27 22:57 ` [PATCHv2 0/5] Fix --recurse-submodules for submodule worktree changes Stefan Beller
2017-12-27 22:57   ` [PATCHv2 1/5] t/helper/test-lazy-name-hash: fix compilation Stefan Beller
2017-12-27 22:57   ` [PATCHv2 2/5] t/lib-submodule-update.sh: clarify test Stefan Beller
2017-12-27 22:57   ` [PATCHv2 3/5] t/lib-submodule-update.sh: Fix test ignoring ignored files in submodules Stefan Beller
2017-12-27 22:57   ` [PATCHv2 4/5] unpack-trees: oneway_merge to update submodules Stefan Beller
2018-01-02 19:43     ` Junio C Hamano
2018-01-02 23:04       ` Stefan Beller
2018-01-03  1:12       ` [PATCHv3 0/5] Fix --recurse-submodules for submodule worktree changes Stefan Beller
2018-01-03  1:12         ` [PATCH 1/5] t/helper/test-lazy-name-hash: fix compilation Stefan Beller
2018-01-03  1:12         ` [PATCH 2/5] t/lib-submodule-update.sh: clarify test Stefan Beller
2018-01-03  1:12         ` [PATCH 3/5] t/lib-submodule-update.sh: Fix test ignoring ignored files in submodules Stefan Beller
2018-01-03  1:12         ` [PATCH 4/5] unpack-trees: oneway_merge to update submodules Stefan Beller
2018-01-03  1:12         ` [PATCH 5/5] submodule: submodule_move_head omits old argument in forced case Stefan Beller
2018-01-03 20:49         ` [PATCHv3 0/5] Fix --recurse-submodules for submodule worktree changes Junio C Hamano
2018-01-03 21:16           ` Stefan Beller
2018-01-05 20:03           ` [PATCHv4 0/4] " Stefan Beller
2018-01-05 20:03             ` [PATCHv4 1/4] t/lib-submodule-update.sh: clarify test Stefan Beller
2018-01-05 20:03             ` [PATCHv4 2/4] t/lib-submodule-update.sh: Fix test ignoring ignored files in submodules Stefan Beller
2018-01-05 20:03             ` [PATCHv4 3/4] unpack-trees: oneway_merge to update submodules Stefan Beller
2018-01-05 20:03             ` [PATCHv4 4/4] submodule: submodule_move_head omits old argument in forced case Stefan Beller
2018-01-09 22:45             ` [PATCHv4 0/4] Fix --recurse-submodules for submodule worktree changes Junio C Hamano
2017-12-27 22:57   ` [PATCHv2 5/5] submodule: submodule_move_head omits old argument in forced case Stefan Beller

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