Add API to list tags (#5850)

* Add API to list tags

* update dependency gitea sdk vendor

* fix swagger generation

* fix swagger

* add tests

* update code.gitea.io/git vendor

integrations/api_repo_tags_test.go

@@ -0,0 +1,38 @@
+// Copyright 2018 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package integrations
+
+import (
+	"net/http"
+	"path"
+	"testing"
+
+	"code.gitea.io/gitea/models"
+	"code.gitea.io/gitea/modules/setting"
+	api "code.gitea.io/sdk/gitea"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestAPIReposGetTags(t *testing.T) {
+	prepareTestEnv(t)
+	user := models.AssertExistsAndLoadBean(t, &models.User{ID: 2}).(*models.User)
+	// Login as User2.
+	session := loginUser(t, user.Name)
+	token := getTokenForLoggedInUser(t, session)
+
+	req := NewRequestf(t, "GET", "/api/v1/repos/%s/repo1/tags?token="+token, user.Name)
+	resp := session.MakeRequest(t, req, http.StatusOK)
+
+	var tags []*api.Tag
+	DecodeJSON(t, resp, &tags)
+
+	assert.EqualValues(t, 1, len(tags))
+	assert.Equal(t, "v1.1", tags[0].Name)
+	assert.Equal(t, "65f1bf27bc3bf70f64657658635e66094edbcb4d", tags[0].Commit.SHA)
+	assert.Equal(t, path.Join(setting.AppSubURL, "/user2/repo1/commit/65f1bf27bc3bf70f64657658635e66094edbcb4d"), tags[0].Commit.URL)
+	assert.Equal(t, path.Join(setting.AppSubURL, "/user2/repo1/archive/v1.1.zip"), tags[0].ZipballURL)
+	assert.Equal(t, path.Join(setting.AppSubURL, "/user2/repo1/archive/v1.1.tar.gz"), tags[0].TarballURL)
+}