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-rw-r--r--submodule.c4
-rwxr-xr-xt/lib-submodule-update.sh19
-rw-r--r--unpack-trees.c3
3 files changed, 23 insertions, 3 deletions
diff --git a/submodule.c b/submodule.c
index 2967704..47ddc9b 100644
--- a/submodule.c
+++ b/submodule.c
@@ -1657,7 +1657,9 @@ 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 38dadd2..1f38a85 100755
--- a/t/lib-submodule-update.sh
+++ b/t/lib-submodule-update.sh
@@ -664,8 +664,8 @@ test_submodule_recursing_with_args_common() {
cd submodule_update &&
git -C sub1 checkout -b keep_branch &&
git -C sub1 rev-parse HEAD >expect &&
- git branch -t check-keep origin/modify_sub1 &&
- $command check-keep &&
+ git branch -t modify_sub1 origin/modify_sub1 &&
+ $command modify_sub1 &&
test_superproject_content origin/modify_sub1 &&
test_submodule_content sub1 origin/modify_sub1 &&
git -C sub1 rev-parse keep_branch >actual &&
@@ -885,6 +885,7 @@ test_submodule_switch_recursing_with_args () {
(
cd submodule_update &&
git branch -t replace_sub1_with_file origin/replace_sub1_with_file &&
+ echo ignored >.git/modules/sub1/info/exclude &&
: >sub1/ignored &&
$command replace_sub1_with_file &&
test_superproject_content origin/replace_sub1_with_file &&
@@ -1014,4 +1015,18 @@ test_submodule_forced_switch_recursing_with_args () {
test_submodule_content sub1 origin/modify_sub1
)
'
+
+ test_expect_success "$command: changed submodule worktree is reset" '
+ prolog &&
+ reset_work_tree_to_interested add_sub1 &&
+ (
+ cd submodule_update &&
+ rm sub1/file1 &&
+ : >sub1/new_file &&
+ git -C sub1 add new_file &&
+ $command HEAD &&
+ test_path_is_file sub1/file1 &&
+ test_path_is_missing sub1/new_file
+ )
+ '
}
diff --git a/unpack-trees.c b/unpack-trees.c
index bf8b602..96c3327 100644
--- a/unpack-trees.c
+++ b/unpack-trees.c
@@ -2139,6 +2139,9 @@ int oneway_merge(const struct cache_entry * const *src,
ie_match_stat(o->src_index, old, &st, CE_MATCH_IGNORE_VALID|CE_MATCH_IGNORE_SKIP_WORKTREE))
update |= CE_UPDATE;
}
+ if (o->update && S_ISGITLINK(old->ce_mode) &&
+ should_update_submodules() && !verify_uptodate(old, o))
+ update |= CE_UPDATE;
add_entry(o, old, update, 0);
return 0;
}