[PATCH -v3 8/8] fast-export: handle nested tags

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Signed-off-by: Elijah Newren <newren@xxxxxxxxx>
---
 builtin/fast-export.c  | 30 ++++++++++++++++++------------
 t/t9350-fast-export.sh |  2 +-
 2 files changed, 19 insertions(+), 13 deletions(-)

diff --git a/builtin/fast-export.c b/builtin/fast-export.c
index d32e1e9327..58a74de42a 100644
--- a/builtin/fast-export.c
+++ b/builtin/fast-export.c
@@ -843,22 +843,28 @@ static void handle_tag(const char *name, struct tag *tag)
 			free(buf);
 			return;
 		case REWRITE:
-			if (tagged->type != OBJ_COMMIT) {
-				die("tag %s tags unexported %s!",
-				    oid_to_hex(&tag->object.oid),
-				    type_name(tagged->type));
-			}
-			p = rewrite_commit((struct commit *)tagged);
-			if (!p) {
-				printf("reset %s\nfrom %s\n\n",
-				       name, oid_to_hex(&null_oid));
-				free(buf);
-				return;
+			if (tagged->type == OBJ_TAG && !mark_tags) {
+				die(_("Error: Cannot export nested tags unless --mark-tags is specified."));
+			} else if (tagged->type == OBJ_COMMIT) {
+				p = rewrite_commit((struct commit *)tagged);
+				if (!p) {
+					printf("reset %s\nfrom %s\n\n",
+					       name, oid_to_hex(&null_oid));
+					free(buf);
+					return;
+				}
+				tagged_mark = get_object_mark(&p->object);
+			} else {
+				/* tagged->type is either OBJ_BLOB or OBJ_TAG */
+				tagged_mark = get_object_mark(tagged);
 			}
-			tagged_mark = get_object_mark(&p->object);
 		}
 	}
 
+	if (tagged->type == OBJ_TAG) {
+		printf("reset %s\nfrom %s\n\n",
+		       name, oid_to_hex(&null_oid));
+	}
 	if (starts_with(name, "refs/tags/"))
 		name += 10;
 	printf("tag %s\n", name);
diff --git a/t/t9350-fast-export.sh b/t/t9350-fast-export.sh
index 9ab281e4b9..2e4e214815 100755
--- a/t/t9350-fast-export.sh
+++ b/t/t9350-fast-export.sh
@@ -567,7 +567,7 @@ test_expect_success 'handling tags of blobs' '
 	test_cmp expect actual
 '
 
-test_expect_failure 'handling nested tags' '
+test_expect_success 'handling nested tags' '
 	git tag -a -m "This is a nested tag" nested muss &&
 	git fast-export --mark-tags nested >output &&
 	grep "^from $ZERO_OID$" output &&
-- 
2.23.0.264.g3b9f7f2fc6




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