In 665b35eccd39 (2016-06-09, submodule--helper: initial clone learns
retry logic), the index computation for the second round is wrong; it
should make use of the index that was handed in via the idx_task_cb
pointer. When that commit was introduced, I wrote:
> I wonder how we can test this properly as the git binary we have here
> is too reliable, but I observed the correctness of this patch when
> cloning a repo with lots of submodules and one of them failing.
This was only partially true as I did not observe the second try failing,
only the first retry succeeding. Testing however is really easy, when the
url of one submodule is bogus, so add a test for that.
Signed-off-by: Stefan Beller <sbeller@xxxxxxxxxx>
---
builtin/submodule--helper.c | 4 +++-
t/t7406-submodule-update.sh | 16 ++++++++++++++++
2 files changed, 19 insertions(+), 1 deletion(-)
diff --git a/builtin/submodule--helper.c b/builtin/submodule--helper.c
index 494e088..5d54885 100644
--- a/builtin/submodule--helper.c
+++ b/builtin/submodule--helper.c
@@ -795,7 +795,9 @@ static int update_clone_task_finished(int result,
suc->failed_clones[suc->failed_clones_nr++] = ce;
return 0;
} else {
- idx = suc->current - suc->list.nr;
+ idx -= suc->list.nr;
+ if (idx >= suc->failed_clones_nr)
+ die("BUG: idx too large???");
ce = suc->failed_clones[idx];
strbuf_addf(err, _("Failed to clone '%s' a second time, aborting"),
ce->name);
diff --git a/t/t7406-submodule-update.sh b/t/t7406-submodule-update.sh
index 88e9750..ffb329f 100755
--- a/t/t7406-submodule-update.sh
+++ b/t/t7406-submodule-update.sh
@@ -889,4 +889,20 @@ test_expect_success 'git clone passes the parallel jobs config on to submodules'
rm -rf super4
'
+cat << EOF >expect
+Submodule 'deeper/submodule' (bogus-url) registered for path 'deeper/submodule'
+fatal: clone of 'bogus-url' into submodule path '$pwd/super4/deeper/submodule' failed
+Failed to clone 'deeper/submodule'. Retry scheduled
+fatal: clone of 'bogus-url' into submodule path '$pwd/super4/deeper/submodule' failed
+Failed to clone 'deeper/submodule' a second time, aborting
+EOF
+
+test_expect_success 'correct message for retries' '
+ test_when_finished "rm -rf super4" &&
+ git -C super config -f .gitmodules submodule."deeper/submodule".url bogus-url &&
+ git -C super commit -a -m "bogus url for one submodule" &&
+ test_must_fail git clone --recurse-submodules -j 1 super super4 2>&1 | grep deeper >actual &&
+ test_cmp expect actual
+'
+
test_done
--
2.9.2.370.g4a59376.dirty
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