Add push to remote mirror repository (#15157)

* Added push mirror model.

* Integrated push mirror into queue.

* Moved methods into own file.

* Added basic implementation.

* Mirror wiki too.

* Removed duplicated method.

* Get url for different remotes.

* Added migration.

* Unified remote url access.

* Add/Remove push mirror remotes.

* Prevent hangs with missing credentials.

* Moved code between files.

* Changed sanitizer interface.

* Added push mirror backend methods.

* Only update the mirror remote.

* Limit refs on push.

* Added UI part.

* Added missing table.

* Delete mirror if repository gets removed.

* Changed signature. Handle object errors.

* Added upload method.

* Added "upload" unit tests.

* Added transfer adapter unit tests.

* Send correct headers.

* Added pushing of LFS objects.

* Added more logging.

* Simpler body handling.

* Process files in batches to reduce HTTP calls.

* Added created timestamp.

* Fixed invalid column name.

* Changed name to prevent xorm auto setting.

* Remove table header im empty.

* Strip exit code from error message.

* Added docs page about mirroring.

* Fixed date.

* Fixed merge errors.

* Moved test to integrations.

* Added push mirror test.

* Added test.

integrations/mirror_push_test.go

@@ -0,0 +1,86 @@
+// Copyright 2021 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 (
+	"context"
+	"fmt"
+	"net/http"
+	"net/url"
+	"testing"
+
+	"code.gitea.io/gitea/models"
+	"code.gitea.io/gitea/modules/git"
+	"code.gitea.io/gitea/modules/repository"
+	"code.gitea.io/gitea/modules/setting"
+	mirror_service "code.gitea.io/gitea/services/mirror"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestMirrorPush(t *testing.T) {
+	onGiteaRun(t, testMirrorPush)
+}
+
+func testMirrorPush(t *testing.T, u *url.URL) {
+	defer prepareTestEnv(t)()
+
+	setting.Migrations.AllowLocalNetworks = true
+
+	user := models.AssertExistsAndLoadBean(t, &models.User{ID: 2}).(*models.User)
+	srcRepo := models.AssertExistsAndLoadBean(t, &models.Repository{ID: 1}).(*models.Repository)
+
+	mirrorRepo, err := repository.CreateRepository(user, user, models.CreateRepoOptions{
+		Name: "test-push-mirror",
+	})
+	assert.NoError(t, err)
+
+	ctx := NewAPITestContext(t, user.LowerName, srcRepo.Name)
+
+	doCreatePushMirror(ctx, fmt.Sprintf("%s%s/%s", u.String(), url.PathEscape(ctx.Username), url.PathEscape(mirrorRepo.Name)), user.LowerName, userPassword)(t)
+
+	mirrors, err := models.GetPushMirrorsByRepoID(srcRepo.ID)
+	assert.NoError(t, err)
+	assert.Len(t, mirrors, 1)
+
+	ok := mirror_service.SyncPushMirror(context.Background(), mirrors[0].ID)
+	assert.True(t, ok)
+
+	srcGitRepo, err := git.OpenRepository(srcRepo.RepoPath())
+	assert.NoError(t, err)
+	defer srcGitRepo.Close()
+
+	srcCommit, err := srcGitRepo.GetBranchCommit("master")
+	assert.NoError(t, err)
+
+	mirrorGitRepo, err := git.OpenRepository(mirrorRepo.RepoPath())
+	assert.NoError(t, err)
+	defer mirrorGitRepo.Close()
+
+	mirrorCommit, err := mirrorGitRepo.GetBranchCommit("master")
+	assert.NoError(t, err)
+
+	assert.Equal(t, srcCommit.ID, mirrorCommit.ID)
+}
+
+func doCreatePushMirror(ctx APITestContext, address, username, password string) func(t *testing.T) {
+	return func(t *testing.T) {
+		csrf := GetCSRF(t, ctx.Session, fmt.Sprintf("/%s/%s/settings", url.PathEscape(ctx.Username), url.PathEscape(ctx.Reponame)))
+
+		req := NewRequestWithValues(t, "POST", fmt.Sprintf("/%s/%s/settings", url.PathEscape(ctx.Username), url.PathEscape(ctx.Reponame)), map[string]string{
+			"_csrf":                csrf,
+			"action":               "push-mirror-add",
+			"push_mirror_address":  address,
+			"push_mirror_username": username,
+			"push_mirror_password": password,
+			"push_mirror_interval": "0",
+		})
+		ctx.Session.MakeRequest(t, req, http.StatusFound)
+
+		flashCookie := ctx.Session.GetCookie("macaron_flash")
+		assert.NotNil(t, flashCookie)
+		assert.Contains(t, flashCookie.Value, "success")
+	}
+}