247 lines
5.8 KiB
Go
247 lines
5.8 KiB
Go
package database
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import (
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"context"
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"fmt"
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"log"
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"net/url"
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"time"
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"github.com/photoview/photoview/api/database/drivers"
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"github.com/photoview/photoview/api/graphql/models"
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"github.com/photoview/photoview/api/utils"
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"github.com/pkg/errors"
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"github.com/go-sql-driver/mysql"
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gorm_mysql "gorm.io/driver/mysql"
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"gorm.io/driver/postgres"
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"gorm.io/driver/sqlite"
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"gorm.io/gorm"
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"gorm.io/gorm/logger"
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)
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func GetMysqlAddress(addressString string) (string, error) {
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if addressString == "" {
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return "", errors.New(fmt.Sprintf("Environment variable %s missing, exiting", utils.EnvMysqlURL.GetName()))
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}
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config, err := mysql.ParseDSN(addressString)
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if err != nil {
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return "", errors.Wrap(err, "Could not parse mysql url")
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}
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config.MultiStatements = true
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config.ParseTime = true
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return config.FormatDSN(), nil
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}
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func GetPostgresAddress(addressString string) (*url.URL, error) {
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if addressString == "" {
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return nil, errors.New(fmt.Sprintf("Environment variable %s missing, exiting", utils.EnvPostgresURL.GetName()))
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}
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address, err := url.Parse(addressString)
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if err != nil {
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return nil, errors.Wrap(err, "Could not parse postgres url")
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}
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return address, nil
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}
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func GetSqliteAddress(path string) (*url.URL, error) {
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if path == "" {
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path = "photoview.db"
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}
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address, err := url.Parse(path)
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if err != nil {
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return nil, errors.Wrapf(err, "Could not parse sqlite url (%s)", path)
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}
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queryValues := address.Query()
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queryValues.Add("cache", "shared")
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queryValues.Add("mode", "rwc")
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// queryValues.Add("_busy_timeout", "60000") // 1 minute
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address.RawQuery = queryValues.Encode()
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// log.Panicf("%s", address.String())
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return address, nil
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}
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func ConfigureDatabase(config *gorm.Config) (*gorm.DB, error) {
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var databaseDialect gorm.Dialector
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switch drivers.DatabaseDriverFromEnv() {
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case drivers.MYSQL:
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mysqlAddress, err := GetMysqlAddress(utils.EnvMysqlURL.GetValue())
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if err != nil {
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return nil, err
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}
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log.Printf("Connecting to MYSQL database: %s", mysqlAddress)
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databaseDialect = gorm_mysql.Open(mysqlAddress)
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case drivers.SQLITE:
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sqliteAddress, err := GetSqliteAddress(utils.EnvSqlitePath.GetValue())
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if err != nil {
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return nil, err
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}
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log.Printf("Opening SQLITE database: %s", sqliteAddress)
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databaseDialect = sqlite.Open(sqliteAddress.String())
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case drivers.POSTGRES:
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postgresAddress, err := GetPostgresAddress(utils.EnvPostgresURL.GetValue())
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if err != nil {
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return nil, err
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}
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log.Printf("Connecting to POSTGRES database: %s", postgresAddress.Redacted())
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databaseDialect = postgres.Open(postgresAddress.String())
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}
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db, err := gorm.Open(databaseDialect, config)
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if err != nil {
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return nil, err
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}
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// Manually enable foreign keys for sqlite, as this isn't done by default
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if drivers.SQLITE.MatchDatabase(db) {
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db.Exec("PRAGMA foreign_keys = ON")
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}
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return db, nil
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}
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// SetupDatabase connects to the database using environment variables
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func SetupDatabase() (*gorm.DB, error) {
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config := gorm.Config{}
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// Configure database logging
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if utils.DevelopmentMode() {
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config.Logger = logger.Default.LogMode(logger.Info)
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} else {
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config.Logger = logger.Default.LogMode(logger.Warn)
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}
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var db *gorm.DB
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for retryCount := 1; retryCount <= 5; retryCount++ {
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var err error
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db, err = ConfigureDatabase(&config)
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if err == nil {
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sqlDB, dbErr := db.DB()
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if dbErr != nil {
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return nil, dbErr
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}
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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err = sqlDB.PingContext(ctx)
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cancel()
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sqlDB.SetMaxOpenConns(80)
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if err == nil {
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return db, nil
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}
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}
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log.Printf("WARN: Could not ping database: %s. Will retry after 5 seconds\n", err)
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time.Sleep(time.Duration(5) * time.Second)
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}
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return db, nil
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}
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var database_models []interface{} = []interface{}{
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&models.User{},
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&models.AccessToken{},
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&models.SiteInfo{},
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&models.Media{},
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&models.MediaURL{},
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&models.Album{},
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&models.MediaEXIF{},
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&models.VideoMetadata{},
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&models.ShareToken{},
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&models.UserMediaData{},
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&models.UserAlbums{},
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&models.UserPreferences{},
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// Face detection
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&models.FaceGroup{},
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&models.ImageFace{},
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}
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func MigrateDatabase(db *gorm.DB) error {
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if err := db.SetupJoinTable(&models.User{}, "Albums", &models.UserAlbums{}); err != nil {
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log.Printf("Setup UserAlbums join table failed: %v\n", err)
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}
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if err := db.AutoMigrate(database_models...); err != nil {
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log.Printf("Auto migration failed: %v\n", err)
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}
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// v2.1.0 - Replaced by Media.CreatedAt
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if db.Migrator().HasColumn(&models.Media{}, "date_imported") {
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db.Migrator().DropColumn(&models.Media{}, "date_imported")
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}
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// v2.3.0 - Changed type of MediaEXIF.Exposure and MediaEXIF.Flash
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// from string values to decimal and int respectively
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if err := migrate_exif_fields(db); err != nil {
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log.Printf("Failed to run exif fields migration: %v\n", err)
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}
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return nil
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}
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func ClearDatabase(db *gorm.DB) error {
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err := db.Transaction(func(tx *gorm.DB) error {
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db_driver := drivers.DatabaseDriverFromEnv()
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if db_driver == drivers.MYSQL {
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if err := tx.Exec("SET FOREIGN_KEY_CHECKS = 0;").Error; err != nil {
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return err
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}
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}
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dry_run := tx.Session(&gorm.Session{DryRun: true})
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for _, model := range database_models {
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// get table name of model structure
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table := dry_run.Find(model).Statement.Table
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switch db_driver {
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case drivers.POSTGRES:
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if err := tx.Exec(fmt.Sprintf("TRUNCATE TABLE %s CASCADE", table)).Error; err != nil {
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return err
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}
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case drivers.MYSQL:
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if err := tx.Exec(fmt.Sprintf("TRUNCATE TABLE %s", table)).Error; err != nil {
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return err
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}
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case drivers.SQLITE:
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if err := tx.Exec(fmt.Sprintf("DELETE FROM %s", table)).Error; err != nil {
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return err
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}
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}
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}
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if db_driver == drivers.MYSQL {
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if err := tx.Exec("SET FOREIGN_KEY_CHECKS = 1;").Error; err != nil {
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return err
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}
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}
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return nil
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})
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if err != nil {
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return err
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}
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return nil
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}
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