feat(migration): migration from other services now happens in the background

pkg/migration/20231108231513.go

@@ -0,0 +1,97 @@
+// Vikunja is a to-do list application to facilitate your life.
+// Copyright 2018-present Vikunja and contributors. All rights reserved.
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public Licensee as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public Licensee for more details.
+//
+// You should have received a copy of the GNU Affero General Public Licensee
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+package migration
+
+import (
+	"time"
+
+	"code.vikunja.io/api/pkg/config"
+	"src.techknowlogick.com/xormigrate"
+	"xorm.io/xorm"
+)
+
+type migrationStatus20231108231513 struct {
+	ID         int64     `xorm:"bigint autoincr not null unique pk" json:"id"`
+	Created    time.Time `xorm:"created not null 'created'" json:"time"`
+	StartedAt  time.Time `xorm:"null" json:"started_at"`
+	FinishedAt time.Time `xorm:"null" json:"finished_at"`
+}
+
+func (migrationStatus20231108231513) TableName() string {
+	return "migration_status"
+}
+
+func init() {
+	migrations = append(migrations, &xormigrate.Migration{
+		ID:          "20231108231513",
+		Description: "",
+		Migrate: func(tx *xorm.Engine) error {
+
+			err := tx.Sync2(migrationStatus20231108231513{})
+			if err != nil {
+				return err
+			}
+
+			all := []*migrationStatus20231108231513{}
+			err = tx.Find(&all)
+			if err != nil {
+				return err
+			}
+
+			for _, status := range all {
+				status.StartedAt = status.Created
+				status.FinishedAt = status.Created
+				_, err = tx.Where("id = ?", status.ID).Update(status)
+				if err != nil {
+					return err
+				}
+			}
+
+			if config.DatabaseType.GetString() == "sqlite" {
+				_, err = tx.Exec(`create table migration_status_dg_tmp
+				(
+					id            INTEGER not null
+				primary key autoincrement,
+					user_id       INTEGER not null,
+					migrator_name TEXT,
+					started_at DATETIME null,
+					finished_at DATETIME null
+				);
+
+				insert into migration_status_dg_tmp(id, user_id, migrator_name, started_at, finished_at)
+				select id, user_id, migrator_name, started_at, finished_at
+					from migration_status;
+
+					drop table migration_status;
+
+					alter table migration_status_dg_tmp
+					rename to migration_status;
+
+					create unique index UQE_migration_status_id
+					on migration_status (id);
+`)
+				return err
+			}
+
+			err = dropTableColum(tx, "migration_status", "created")
+			return err
+		},
+		Rollback: func(tx *xorm.Engine) error {
+			return nil
+		},
+	})
+}