thodg/libgit2

diff --git a/include/git2/branch.h b/include/git2/branch.h
index 851de29..28ca6b2 100644
--- a/include/git2/branch.h
+++ b/include/git2/branch.h
@@ -43,6 +43,10 @@ GIT_BEGIN_DECL
  *
  * @param force Overwrite existing branch.
  *
+ * @param signature The identity that will used to populate the reflog entry
+ *
+ * @param log_message The one line long message to be appended to the reflog
+ *
  * @return 0, GIT_EINVALIDSPEC or an error code.
  * A proper reference is written in the refs/heads namespace
  * pointing to the provided target commit.
@@ -52,7 +56,9 @@ GIT_EXTERN(int) git_branch_create(
 	git_repository *repo,
 	const char *branch_name,
 	const git_commit *target,
-	int force);
+	int force,
+	const git_signature *signature,
+	const char *log_message);
 
 /**
  * Delete an existing branch reference.
diff --git a/src/branch.c b/src/branch.c
index d0dc21b..a989cb6 100644
--- a/src/branch.c
+++ b/src/branch.c
@@ -54,7 +54,9 @@ int git_branch_create(
 	git_repository *repository,
 	const char *branch_name,
 	const git_commit *commit,
-	int force)
+	int force,
+	const git_signature *signature,
+	const char *log_message)
 {
 	git_reference *branch = NULL;
 	git_buf canonical_branch_name = GIT_BUF_INIT;
@@ -63,14 +65,14 @@ int git_branch_create(
 	assert(branch_name && commit && ref_out);
 	assert(git_object_owner((const git_object *)commit) == repository);
 
-	if (!(error = git_buf_joinpath(
-			&canonical_branch_name, GIT_REFS_HEADS_DIR, branch_name)))
-		error = git_reference_create(
-			&branch, repository, git_buf_cstr(&canonical_branch_name),
-			git_commit_id(commit), force, NULL, NULL);
+	if (git_buf_joinpath(&canonical_branch_name, GIT_REFS_HEADS_DIR, branch_name) < 0)
+		goto cleanup;
 
-	*ref_out = branch;
+	if (!(error = git_reference_create(&branch, repository,
+		git_buf_cstr(&canonical_branch_name), git_commit_id(commit), force, signature, log_message)))
+		*ref_out = branch;
 
+cleanup:
 	git_buf_free(&canonical_branch_name);
 	return error;
 }
diff --git a/src/clone.c b/src/clone.c
index 2bf2fc5..288e9d2 100644
--- a/src/clone.c
+++ b/src/clone.c
@@ -38,7 +38,7 @@ static int create_branch(
 		return error;
 
 	/* Create the new branch */
-	error = git_branch_create(&branch_ref, repo, name, head_obj, 0);
+	error = git_branch_create(&branch_ref, repo, name, head_obj, 0, NULL, NULL);
 
 	git_commit_free(head_obj);
 
diff --git a/tests/checkout/tree.c b/tests/checkout/tree.c
index 4e915e8..407908a 100644
--- a/tests/checkout/tree.c
+++ b/tests/checkout/tree.c
@@ -480,7 +480,7 @@ void assert_conflict(
 	/* Create a branch pointing at the parent */
 	cl_git_pass(git_revparse_single(&g_object, g_repo, parent_sha));
 	cl_git_pass(git_branch_create(&branch, g_repo,
-		"potential_conflict", (git_commit *)g_object, 0));
+		"potential_conflict", (git_commit *)g_object, 0, NULL, NULL));
 
 	/* Make HEAD point to this branch */
 	cl_git_pass(git_reference_symbolic_create(
diff --git a/tests/refs/branches/create.c b/tests/refs/branches/create.c
index 43614bd..43f2aff 100644
--- a/tests/refs/branches/create.c
+++ b/tests/refs/branches/create.c
@@ -46,7 +46,7 @@ void test_refs_branches_create__can_create_a_local_branch(void)
 {
 	retrieve_known_commit(&target, repo);
 
-	cl_git_pass(git_branch_create(&branch, repo, NEW_BRANCH_NAME, target, 0));
+	cl_git_pass(git_branch_create(&branch, repo, NEW_BRANCH_NAME, target, 0, NULL, NULL));
 	cl_git_pass(git_oid_cmp(git_reference_target(branch), git_commit_id(target)));
 }
 
@@ -54,14 +54,14 @@ void test_refs_branches_create__can_not_create_a_branch_if_its_name_collide_with
 {
 	retrieve_known_commit(&target, repo);
 
-	cl_assert_equal_i(GIT_EEXISTS, git_branch_create(&branch, repo, "br2", target, 0));
+	cl_assert_equal_i(GIT_EEXISTS, git_branch_create(&branch, repo, "br2", target, 0, NULL, NULL));
 }
 
 void test_refs_branches_create__can_force_create_over_an_existing_branch(void)
 {
 	retrieve_known_commit(&target, repo);
 
-	cl_git_pass(git_branch_create(&branch, repo, "br2", target, 1));
+	cl_git_pass(git_branch_create(&branch, repo, "br2", target, 1, NULL, NULL));
 	cl_git_pass(git_oid_cmp(git_reference_target(branch), git_commit_id(target)));
 	cl_assert_equal_s("refs/heads/br2", git_reference_name(branch));
 }
@@ -71,7 +71,7 @@ void test_refs_branches_create__creating_a_branch_with_an_invalid_name_returns_E
 	retrieve_known_commit(&target, repo);
 
 	cl_assert_equal_i(GIT_EINVALIDSPEC,
-		git_branch_create(&branch, repo, "inv@{id", target, 0));
+		git_branch_create(&branch, repo, "inv@{id", target, 0, NULL, NULL));
 }
 
 void test_refs_branches_create__creation_creates_new_reflog(void)
@@ -80,26 +80,30 @@ void test_refs_branches_create__creation_creates_new_reflog(void)
 	const git_reflog_entry *entry;
 
 	retrieve_known_commit(&target, repo);
-	cl_git_pass(git_branch_create(&branch, repo, NEW_BRANCH_NAME, target, false));
+	cl_git_pass(git_branch_create(&branch, repo, NEW_BRANCH_NAME, target, false, NULL, "create!"));
 	cl_git_pass(git_reflog_read(&log, repo, "refs/heads/" NEW_BRANCH_NAME));
 
 	cl_assert_equal_i(1, git_reflog_entrycount(log));
 	entry = git_reflog_entry_byindex(log, 0);
+	cl_assert_equal_s("create!", git_reflog_entry_message(entry));
 }
 
 void test_refs_branches_create__recreation_updates_existing_reflog(void)
 {
 	git_reflog *log;
-	const git_reflog_entry *entry;
+	const git_reflog_entry *entry1, *entry2;
 
 	retrieve_known_commit(&target, repo);
 
-	cl_git_pass(git_branch_create(&branch, repo, NEW_BRANCH_NAME, target, false));
+	cl_git_pass(git_branch_create(&branch, repo, NEW_BRANCH_NAME, target, false, NULL, "Create 1"));
 	cl_git_pass(git_branch_delete(branch));
-	cl_git_pass(git_branch_create(&branch, repo, NEW_BRANCH_NAME, target, false));
+	cl_git_pass(git_branch_create(&branch, repo, NEW_BRANCH_NAME, target, false, NULL, "Create 2"));
 	cl_git_pass(git_reflog_read(&log, repo, "refs/heads/" NEW_BRANCH_NAME));
 
 	cl_assert_equal_i(2, git_reflog_entrycount(log));
-	entry = git_reflog_entry_byindex(log, 0);
+	entry1 = git_reflog_entry_byindex(log, 1);
+	entry2 = git_reflog_entry_byindex(log, 0);
+	cl_assert_equal_s("Create 1", git_reflog_entry_message(entry1));
+	cl_assert_equal_s("Create 2", git_reflog_entry_message(entry2));
 }
 
diff --git a/tests/refs/branches/upstream.c b/tests/refs/branches/upstream.c
index 69e55a0..ce35698 100644
--- a/tests/refs/branches/upstream.c
+++ b/tests/refs/branches/upstream.c
@@ -66,7 +66,7 @@ static void assert_merge_and_or_remote_key_missing(git_repository *repository, c
 	git_reference *branch;
 
 	cl_assert_equal_i(GIT_OBJ_COMMIT, git_object_type((git_object*)target));
-	cl_git_pass(git_branch_create(&branch, repository, entry_name, (git_commit*)target, 0));
+	cl_git_pass(git_branch_create(&branch, repository, entry_name, (git_commit*)target, 0, NULL, NULL));
 
 	cl_assert_equal_i(GIT_ENOTFOUND, git_branch_upstream(&upstream, branch));
 
diff --git a/tests/refs/revparse.c b/tests/refs/revparse.c
index 522a44c..88f2703 100644
--- a/tests/refs/revparse.c
+++ b/tests/refs/revparse.c
@@ -634,7 +634,7 @@ void test_refs_revparse__try_to_retrieve_branch_before_described_tag(void)
 	test_object_inrepo("blah-7-gc47800c", "c47800c7266a2be04c571c04d5a6614691ea99bd", repo);
 
 	cl_git_pass(git_revparse_single(&target, repo, "HEAD~3"));
-	cl_git_pass(git_branch_create(&branch, repo, "blah-7-gc47800c", (git_commit *)target, 0));
+	cl_git_pass(git_branch_create(&branch, repo, "blah-7-gc47800c", (git_commit *)target, 0, NULL, NULL));
 
 	git_oid_tostr(sha, GIT_OID_HEXSZ + 1, git_object_id(target));
 
@@ -672,7 +672,7 @@ void test_refs_revparse__try_to_retrieve_sha_before_branch(void)
 	test_object_inrepo("a65fedf39aefe402d3bb6e24df4d4f5fe4547750", "a65fedf39aefe402d3bb6e24df4d4f5fe4547750", repo);
 
 	cl_git_pass(git_revparse_single(&target, repo, "HEAD~3"));
-	cl_git_pass(git_branch_create(&branch, repo, "a65fedf39aefe402d3bb6e24df4d4f5fe4547750", (git_commit *)target, 0));
+	cl_git_pass(git_branch_create(&branch, repo, "a65fedf39aefe402d3bb6e24df4d4f5fe4547750", (git_commit *)target, 0, NULL, NULL));
 
 	git_oid_tostr(sha, GIT_OID_HEXSZ + 1, git_object_id(target));
 
@@ -708,7 +708,7 @@ void test_refs_revparse__try_to_retrieve_branch_before_abbrev_sha(void)
 	test_object_inrepo("c47800", "c47800c7266a2be04c571c04d5a6614691ea99bd", repo);
 
 	cl_git_pass(git_revparse_single(&target, repo, "HEAD~3"));
-	cl_git_pass(git_branch_create(&branch, repo, "c47800", (git_commit *)target, 0));
+	cl_git_pass(git_branch_create(&branch, repo, "c47800", (git_commit *)target, 0, NULL, NULL));
 
 	git_oid_tostr(sha, GIT_OID_HEXSZ + 1, git_object_id(target));