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-rw-r--r--builtin-fetch.c14
-rwxr-xr-xt/t5503-tagfollow.sh124
2 files changed, 137 insertions, 1 deletions
diff --git a/builtin-fetch.c b/builtin-fetch.c
index a58efa6ece..26c3d74b76 100644
--- a/builtin-fetch.c
+++ b/builtin-fetch.c
@@ -459,6 +459,17 @@ static int add_existing(const char *refname, const unsigned char *sha1,
return 0;
}
+static int will_fetch(struct ref **head, const unsigned char *sha1)
+{
+ struct ref *rm = *head;
+ while (rm) {
+ if (!hashcmp(rm->old_sha1, sha1))
+ return 1;
+ rm = rm->next;
+ }
+ return 0;
+}
+
static void find_non_local_tags(struct transport *transport,
struct ref **head,
struct ref ***tail)
@@ -495,7 +506,8 @@ static void find_non_local_tags(struct transport *transport,
if (!path_list_has_path(&existing_refs, ref_name) &&
!path_list_has_path(&new_refs, ref_name) &&
- has_sha1_file(ref->old_sha1)) {
+ (has_sha1_file(ref->old_sha1) ||
+ will_fetch(head, ref->old_sha1))) {
path_list_insert(ref_name, &new_refs);
rm = alloc_ref(strlen(ref_name) + 1);
diff --git a/t/t5503-tagfollow.sh b/t/t5503-tagfollow.sh
new file mode 100755
index 0000000000..45ff982ec4
--- /dev/null
+++ b/t/t5503-tagfollow.sh
@@ -0,0 +1,124 @@
+#!/bin/sh
+
+test_description='test automatic tag following'
+
+. ./test-lib.sh
+
+# End state of the repository:
+#
+# T - tag1 S - tag2
+# / /
+# L - A ------ O ------ B
+# \ \ \
+# \ C - origin/cat \
+# origin/master master
+
+test_expect_success setup '
+ test_tick &&
+ echo ichi >file &&
+ git add file &&
+ git commit -m L &&
+ L=$(git rev-parse --verify HEAD) &&
+
+ (
+ mkdir cloned &&
+ cd cloned &&
+ git init-db &&
+ git remote add -f origin ..
+ ) &&
+
+ test_tick &&
+ echo A >file &&
+ git add file &&
+ git commit -m A &&
+ A=$(git rev-parse --verify HEAD)
+'
+
+U=UPLOAD_LOG
+
+cat - <<EOF >expect
+#S
+want $A
+#E
+EOF
+test_expect_success 'fetch A (new commit : 1 connection)' '
+ rm -f $U
+ (
+ cd cloned &&
+ GIT_DEBUG_SEND_PACK=3 git fetch 3>../$U &&
+ test $A = $(git rev-parse --verify origin/master)
+ ) &&
+ test -s $U &&
+ cut -d" " -f1,2 $U >actual &&
+ git diff expect actual
+'
+
+test_expect_success "create tag T on A, create C on branch cat" '
+ git tag -a -m tag1 tag1 $A &&
+ T=$(git rev-parse --verify tag1) &&
+
+ git checkout -b cat &&
+ echo C >file &&
+ git add file &&
+ git commit -m C &&
+ C=$(git rev-parse --verify HEAD) &&
+ git checkout master
+'
+
+cat - <<EOF >expect
+#S
+want $C
+want $T
+#E
+EOF
+test_expect_success 'fetch C, T (new branch, tag : 1 connection)' '
+ rm -f $U
+ (
+ cd cloned &&
+ GIT_DEBUG_SEND_PACK=3 git fetch 3>../$U &&
+ test $C = $(git rev-parse --verify origin/cat) &&
+ test $T = $(git rev-parse --verify tag1) &&
+ test $A = $(git rev-parse --verify tag1^0)
+ ) &&
+ test -s $U &&
+ cut -d" " -f1,2 $U >actual &&
+ git diff expect actual
+'
+
+test_expect_success "create commits O, B, tag S on B" '
+ test_tick &&
+ echo O >file &&
+ git add file &&
+ git commit -m O &&
+
+ test_tick &&
+ echo B >file &&
+ git add file &&
+ git commit -m B &&
+ B=$(git rev-parse --verify HEAD) &&
+
+ git tag -a -m tag2 tag2 $B &&
+ S=$(git rev-parse --verify tag2)
+'
+
+cat - <<EOF >expect
+#S
+want $B
+want $S
+#E
+EOF
+test_expect_success 'fetch B, S (commit and tag : 1 connection)' '
+ rm -f $U
+ (
+ cd cloned &&
+ GIT_DEBUG_SEND_PACK=3 git fetch 3>../$U &&
+ test $B = $(git rev-parse --verify origin/master) &&
+ test $B = $(git rev-parse --verify tag2^0) &&
+ test $S = $(git rev-parse --verify tag2)
+ ) &&
+ test -s $U &&
+ cut -d" " -f1,2 $U >actual &&
+ git diff expect actual
+'
+
+test_done