Support bot user

models/user/user_system.go

@@ -0,0 +1,63 @@
+// Copyright 2022 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 user
+
+import (
+	"strings"
+
+	"code.gitea.io/gitea/modules/structs"
+)
+
+// NewGhostUser creates and returns a fake user for someone has deleted their account.
+func NewGhostUser() *User {
+	return &User{
+		ID:        -1,
+		Name:      "Ghost",
+		LowerName: "ghost",
+	}
+}
+
+// IsGhost check if user is fake user for a deleted account
+func (u *User) IsGhost() bool {
+	if u == nil {
+		return false
+	}
+	return u.ID == -1 && u.Name == "Ghost"
+}
+
+// NewReplaceUser creates and returns a fake user for external user
+func NewReplaceUser(name string) *User {
+	return &User{
+		ID:        -1,
+		Name:      name,
+		LowerName: strings.ToLower(name),
+	}
+}
+
+const BotUserID = -2
+
+// NewBotUser creates and returns a fake user for running the build.
+func NewBotUser() *User {
+	return &User{
+		ID:                      BotUserID,
+		Name:                    "gitea-bots",
+		LowerName:               "gitea-bots",
+		IsActive:                true,
+		FullName:                "Gitea Bots",
+		Email:                   "teabot@gitea.io",
+		KeepEmailPrivate:        true,
+		LoginName:               "gitea-bots",
+		Type:                    UserTypeIndividual,
+		AllowCreateOrganization: true,
+		Visibility:              structs.VisibleTypePublic,
+	}
+}
+
+func (u *User) IsBots() bool {
+	if u == nil {
+		return false
+	}
+	return u.ID == BotUserID && u.Name == "gitea-bots"
+}