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submodule-helper: fix indexing in clone retry error reporting path 

'git submodule--helper update-clone' has logic to retry failed clones
a second time. For this purpose, there is a list of submodules to clone,
and a second list that is filled with the submodules to retry. Within
these lists, the submodules are identified by an index as if both lists
were just appended.

This works nicely except when the second clone attempt fails as well. To
report an error, the identifying index must be adjusted by an offset so
that it can be used as an index into the second list. However, the
calculation uses the logical total length of the lists so that the result
always points one past the end of the second list.

Pick the correct index.

Signed-off-by: Johannes Sixt <j6t@kdbg.org>
Acked-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johannes Sixt 2016-07-22 21:15:39 +02:00 committed by Junio C Hamano
parent c4c02bf16c
commit eb09121b74
3 changed files with 5 additions and 5 deletions
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2
builtin/submodule--helper.c
View File

@ -795,7 +795,7 @@ 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;
ce = suc->failed_clones[idx];
strbuf_addf(err, _("Failed to clone '%s' a second time, aborting"),
ce->name);

4
t/t5815-submodule-protos.sh
View File

@ -18,7 +18,7 @@ test_expect_success 'setup repository with submodules' '
git commit -m "add submodules"
'
test_expect_failure 'clone with recurse-submodules fails' '
test_expect_success 'clone with recurse-submodules fails' '
test_must_fail git clone --recurse-submodules . dst
'
@ -32,7 +32,7 @@ test_expect_success 'update of ssh allowed' '
git -C dst submodule update ssh-module
'
test_expect_failure 'update of ext not allowed' '
test_expect_success 'update of ext not allowed' '
test_must_fail git -C dst submodule update ext-module
'

4
t/t7400-submodule-basic.sh
View File

@ -352,7 +352,7 @@ test_expect_success 'sync should fail with unknown submodule' '
test_failure_with_unknown_submodule sync
'
test_expect_failure 'update should fail when path is used by a file' '
test_expect_success 'update should fail when path is used by a file' '
echo hello >expect &&
echo "hello" >init &&
@ -361,7 +361,7 @@ test_expect_failure 'update should fail when path is used by a file' '
test_cmp expect init
'
test_expect_failure 'update should fail when path is used by a nonempty directory' '
test_expect_success 'update should fail when path is used by a nonempty directory' '
echo hello >expect &&
rm -fr init &&