thodg/libgit2

diff --git a/include/git2/refs.h b/include/git2/refs.h
index a0abbc3..d586917 100644
--- a/include/git2/refs.h
+++ b/include/git2/refs.h
@@ -44,7 +44,7 @@ GIT_EXTERN(int) git_reference_lookup(git_reference **out, git_repository *repo, 
  * allocate or free any `git_reference` objects for simple situations.
  *
  * The name will be checked for validity.
- * See `git_reference_create_symbolic()` for rules about valid names.
+ * See `git_reference_symbolic_create()` for rules about valid names.
  *
  * @param out Pointer to oid to be filled in
  * @param repo The repository in which to look up the reference
@@ -124,7 +124,7 @@ GIT_EXTERN(int) git_reference_create(git_reference **out, git_repository *repo, 
  * not a symbolic one).
  *
  * To find the OID of a symbolic ref, call `git_reference_resolve()` and
- * then this function (or maybe use `git_reference_name_to_oid()` to
+ * then this function (or maybe use `git_reference_name_to_id()` to
  * directly resolve a reference name all the way through to an OID).
  *
  * @param ref The reference
diff --git a/src/push.c b/src/push.c
index 634634d..7122364 100644
--- a/src/push.c
+++ b/src/push.c
@@ -68,18 +68,37 @@ static void free_status(push_status *status)
 	git__free(status);
 }
 
-static int check_ref(char *ref)
+static int check_rref(char *ref)
 {
-	if (strcmp(ref, "HEAD") &&
-	    git__prefixcmp(ref, "refs/heads/") &&
-	    git__prefixcmp(ref, "refs/tags/")) {
-		giterr_set(GITERR_INVALID, "No valid reference '%s'", ref);
+	if (git__prefixcmp(ref, "refs/")) {
+		giterr_set(GITERR_INVALID, "Not a valid reference '%s'", ref);
 		return -1;
 	}
+
 	return 0;
 }
 
-static int parse_refspec(push_spec **spec, const char *str)
+static int check_lref(git_push *push, char *ref)
+{
+	/* lref must be resolvable to an existing object */
+	git_object *obj;
+	int error = git_revparse_single(&obj, push->repo, ref);
+
+	if (error) {
+		if (error == GIT_ENOTFOUND)
+			giterr_set(GITERR_REFERENCE,
+				"src refspec '%s' does not match any existing object", ref);
+		else
+			giterr_set(GITERR_INVALID, "Not a valid reference '%s'", ref);
+
+		return -1;
+	} else
+		git_object_free(obj);
+
+	return 0;
+}
+
+static int parse_refspec(git_push *push, push_spec **spec, const char *str)
 {
 	push_spec *s;
 	char *delim;
@@ -94,22 +113,22 @@ static int parse_refspec(push_spec **spec, const char *str)
 		str++;
 	}
 
-#define check(ref) \
-	if (!ref || check_ref(ref) < 0) goto on_error
-
 	delim = strchr(str, ':');
 	if (delim == NULL) {
 		s->lref = git__strdup(str);
-		check(s->lref);
+		if (!s->lref || check_lref(push, s->lref) < 0)
+			goto on_error;
 	} else {
 		if (delim - str) {
 			s->lref = git__strndup(str, delim - str);
-			check(s->lref);
+			if (!s->lref || check_lref(push, s->lref) < 0)
+				goto on_error;
 		}
 
 		if (strlen(delim + 1)) {
 			s->rref = git__strdup(delim + 1);
-			check(s->rref);
+			if (!s->rref || check_rref(s->rref) < 0)
+				goto on_error;
 		}
 	}
 
@@ -119,11 +138,10 @@ static int parse_refspec(push_spec **spec, const char *str)
 	/* If rref is ommitted, use the same ref name as lref */
 	if (!s->rref) {
 		s->rref = git__strdup(s->lref);
-		check(s->rref);
+		if (!s->rref || check_rref(s->rref) < 0)
+			goto on_error;
 	}
 
-#undef check
-
 	*spec = s;
 	return 0;
 
@@ -136,7 +154,7 @@ int git_push_add_refspec(git_push *push, const char *refspec)
 {
 	push_spec *spec;
 
-	if (parse_refspec(&spec, refspec) < 0 ||
+	if (parse_refspec(push, &spec, refspec) < 0 ||
 	    git_vector_insert(&push->specs, spec) < 0)
 		return -1;
 
@@ -158,6 +176,9 @@ static int revwalk(git_vector *commits, git_push *push)
 	git_revwalk_sorting(rw, GIT_SORT_TIME);
 
 	git_vector_foreach(&push->specs, i, spec) {
+		git_otype type;
+		size_t size;
+
 		if (git_oid_iszero(&spec->loid))
 			/*
 			 * Delete reference on remote side;
@@ -168,7 +189,39 @@ static int revwalk(git_vector *commits, git_push *push)
 		if (git_oid_equal(&spec->loid, &spec->roid))
 			continue; /* up-to-date */
 
-		if (git_revwalk_push(rw, &spec->loid) < 0)
+		if (git_odb_read_header(&size, &type, push->repo->_odb, &spec->loid) < 0)
+			goto on_error;
+
+		if (type == GIT_OBJ_TAG) {
+			git_tag *tag;
+			git_object *target;
+
+			if (git_packbuilder_insert(push->pb, &spec->loid, NULL) < 0)
+				goto on_error;
+
+			if (git_tag_lookup(&tag, push->repo, &spec->loid) < 0)
+				goto on_error;
+
+			if (git_tag_peel(&target, tag) < 0) {
+				git_tag_free(tag);
+				goto on_error;
+			}
+			git_tag_free(tag);
+
+			if (git_object_type(target) == GIT_OBJ_COMMIT) {
+				if (git_revwalk_push(rw, git_object_id(target)) < 0) {
+					git_object_free(target);
+					goto on_error;
+				}
+			} else {
+				if (git_packbuilder_insert(
+					push->pb, git_object_id(target), NULL) < 0) {
+					git_object_free(target);
+					goto on_error;
+				}
+			}
+			git_object_free(target);
+		} else if (git_revwalk_push(rw, &spec->loid) < 0)
 			goto on_error;
 
 		if (!spec->force) {
diff --git a/tests-clar/online/push.c b/tests-clar/online/push.c
index 9d949b7..15351ae 100644
--- a/tests-clar/online/push.c
+++ b/tests-clar/online/push.c
@@ -22,8 +22,10 @@ static git_oid _oid_b3;
 static git_oid _oid_b2;
 static git_oid _oid_b1;
 
-/* git_oid *oid, git_repository *repo, (string literal) blob */
-#define CREATE_BLOB(oid, repo, blob) git_blob_create_frombuffer(oid, repo, blob, sizeof(blob) - 1)
+static git_oid _tag_commit;
+static git_oid _tag_tree;
+static git_oid _tag_blob;
+static git_oid _tag_lightweight;
 
 static int cred_acquire_cb(git_cred **cred, const char *url, unsigned int allowed_types, void *payload)
 {
@@ -157,6 +159,11 @@ void test_online_push__initialize(void)
 	git_oid_fromstr(&_oid_b2, "a78705c3b2725f931d3ee05348d83cc26700f247");
 	git_oid_fromstr(&_oid_b1, "a78705c3b2725f931d3ee05348d83cc26700f247");
 
+	git_oid_fromstr(&_tag_commit, "805c54522e614f29f70d2413a0470247d8b424ac");
+	git_oid_fromstr(&_tag_tree, "ff83aa4c5e5d28e3bcba2f5c6e2adc61286a4e5e");
+	git_oid_fromstr(&_tag_blob, "b483ae7ba66decee9aee971f501221dea84b1498");
+	git_oid_fromstr(&_tag_lightweight, "951bbbb90e2259a4c8950db78946784fb53fcbce");
+
 	/* Remote URL environment variable must be set.  User and password are optional.  */
 	_remote_url = cl_getenv("GITTEST_REMOTE_URL");
 	_remote_user = cl_getenv("GITTEST_REMOTE_USER");
@@ -407,6 +414,46 @@ void test_online_push__fast_fwd(void)
 		exp_refs_ff, ARRAY_SIZE(exp_refs_ff), 0);
 }
 
+void test_online_push__tag_commit(void)
+{
+	const char *specs[] = { "refs/tags/tag-commit:refs/tags/tag-commit" };
+	push_status exp_stats[] = { { "refs/tags/tag-commit", NULL } };
+	expected_ref exp_refs[] = { { "refs/tags/tag-commit", &_tag_commit } };
+	do_push(specs, ARRAY_SIZE(specs),
+		exp_stats, ARRAY_SIZE(exp_stats),
+		exp_refs, ARRAY_SIZE(exp_refs), 0);
+}
+
+void test_online_push__tag_tree(void)
+{
+	const char *specs[] = { "refs/tags/tag-tree:refs/tags/tag-tree" };
+	push_status exp_stats[] = { { "refs/tags/tag-tree", NULL } };
+	expected_ref exp_refs[] = { { "refs/tags/tag-tree", &_tag_tree } };
+	do_push(specs, ARRAY_SIZE(specs),
+		exp_stats, ARRAY_SIZE(exp_stats),
+		exp_refs, ARRAY_SIZE(exp_refs), 0);
+}
+
+void test_online_push__tag_blob(void)
+{
+	const char *specs[] = { "refs/tags/tag-blob:refs/tags/tag-blob" };
+	push_status exp_stats[] = { { "refs/tags/tag-blob", NULL } };
+	expected_ref exp_refs[] = { { "refs/tags/tag-blob", &_tag_blob } };
+	do_push(specs, ARRAY_SIZE(specs),
+		exp_stats, ARRAY_SIZE(exp_stats),
+		exp_refs, ARRAY_SIZE(exp_refs), 0);
+}
+
+void test_online_push__tag_lightweight(void)
+{
+	const char *specs[] = { "refs/tags/tag-lightweight:refs/tags/tag-lightweight" };
+	push_status exp_stats[] = { { "refs/tags/tag-lightweight", NULL } };
+	expected_ref exp_refs[] = { { "refs/tags/tag-lightweight", &_tag_lightweight } };
+	do_push(specs, ARRAY_SIZE(specs),
+		exp_stats, ARRAY_SIZE(exp_stats),
+		exp_refs, ARRAY_SIZE(exp_refs), 0);
+}
+
 void test_online_push__force(void)
 {
 	const char *specs1[] = {"refs/heads/b3:refs/heads/tgt"};
@@ -525,3 +572,25 @@ void test_online_push__expressions(void)
 		exp_stats_right_expr, ARRAY_SIZE(exp_stats_right_expr),
 		NULL, 0, 0);
 }
+
+void test_online_push__notes(void)
+{
+	git_oid note_oid, *target_oid, expected_oid;
+	git_signature *signature;
+	const char *specs[] = { "refs/notes/commits:refs/notes/commits" };
+	push_status exp_stats[] = { { "refs/notes/commits", NULL } };
+	expected_ref exp_refs[] = { { "refs/notes/commits", &expected_oid } };
+	git_oid_fromstr(&expected_oid, "8461a99b27b7043e58ff6e1f5d2cf07d282534fb");
+
+	target_oid = &_oid_b6;
+
+	/* Create note to push */
+	cl_git_pass(git_signature_new(&signature, "nulltoken", "emeric.fermas@gmail.com", 1323847743, 60)); /* Wed Dec 14 08:29:03 2011 +0100 */
+	cl_git_pass(git_note_create(&note_oid, _repo, signature, signature, NULL, target_oid, "hello world\n", 0));
+
+	do_push(specs, ARRAY_SIZE(specs),
+		exp_stats, ARRAY_SIZE(exp_stats),
+		exp_refs, ARRAY_SIZE(exp_refs), 0);
+
+	git_signature_free(signature);
+}
diff --git a/tests-clar/resources/push_src/.gitted/objects/80/5c54522e614f29f70d2413a0470247d8b424ac b/tests-clar/resources/push_src/.gitted/objects/80/5c54522e614f29f70d2413a0470247d8b424ac
new file mode 100644
index 0000000..552670c
Binary files /dev/null and b/tests-clar/resources/push_src/.gitted/objects/80/5c54522e614f29f70d2413a0470247d8b424ac differ
diff --git a/tests-clar/resources/push_src/.gitted/objects/b4/83ae7ba66decee9aee971f501221dea84b1498 b/tests-clar/resources/push_src/.gitted/objects/b4/83ae7ba66decee9aee971f501221dea84b1498
new file mode 100644
index 0000000..1e0bd3b
--- /dev/null
+++ b/tests-clar/resources/push_src/.gitted/objects/b4/83ae7ba66decee9aee971f501221dea84b1498
@@ -0,0 +1,3 @@
+x
5�K
+1D]���;1i"^��'���|d`d�ooqQE�ͫ*P�ݢ+
+�	3�$,
}�%�R�w��+s�9��y輨���r��`+ܦ2��p/�[m�p~�u��8-��S��r�=��,?�Z+g
\ No newline at end of file
diff --git a/tests-clar/resources/push_src/.gitted/objects/ff/83aa4c5e5d28e3bcba2f5c6e2adc61286a4e5e b/tests-clar/resources/push_src/.gitted/objects/ff/83aa4c5e5d28e3bcba2f5c6e2adc61286a4e5e
new file mode 100644
index 0000000..10f25eb
--- /dev/null
+++ b/tests-clar/resources/push_src/.gitted/objects/ff/83aa4c5e5d28e3bcba2f5c6e2adc61286a4e5e
@@ -0,0 +1,4 @@
+x
5�M
+1`�=E��4�NA��������H�ooq��{�/G@�5=$+�SO�)n�x�����[�@4�y
+h1ڄv����m�S��yz'�
+�Wk�-��zi�Qc<�ޢ�fS~�pv+�
\ No newline at end of file
diff --git a/tests-clar/resources/push_src/.gitted/refs/tags/tag-blob b/tests-clar/resources/push_src/.gitted/refs/tags/tag-blob
new file mode 100644
index 0000000..abfebf2
--- /dev/null
+++ b/tests-clar/resources/push_src/.gitted/refs/tags/tag-blob
@@ -0,0 +1 @@
+b483ae7ba66decee9aee971f501221dea84b1498
diff --git a/tests-clar/resources/push_src/.gitted/refs/tags/tag-commit b/tests-clar/resources/push_src/.gitted/refs/tags/tag-commit
new file mode 100644
index 0000000..c023b84
--- /dev/null
+++ b/tests-clar/resources/push_src/.gitted/refs/tags/tag-commit
@@ -0,0 +1 @@
+805c54522e614f29f70d2413a0470247d8b424ac
diff --git a/tests-clar/resources/push_src/.gitted/refs/tags/tag-lightweight b/tests-clar/resources/push_src/.gitted/refs/tags/tag-lightweight
new file mode 100644
index 0000000..711e466
--- /dev/null
+++ b/tests-clar/resources/push_src/.gitted/refs/tags/tag-lightweight
@@ -0,0 +1 @@
+951bbbb90e2259a4c8950db78946784fb53fcbce
diff --git a/tests-clar/resources/push_src/.gitted/refs/tags/tag-tree b/tests-clar/resources/push_src/.gitted/refs/tags/tag-tree
new file mode 100644
index 0000000..7a530d3
--- /dev/null
+++ b/tests-clar/resources/push_src/.gitted/refs/tags/tag-tree
@@ -0,0 +1 @@
+ff83aa4c5e5d28e3bcba2f5c6e2adc61286a4e5e