mirror of https://github.com/status-im/go-waku.git
68 lines
1.6 KiB
Go
68 lines
1.6 KiB
Go
package utils
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import (
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"database/sql"
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"errors"
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"regexp"
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"strings"
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"github.com/waku-org/go-waku/waku/persistence/postgres"
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"github.com/waku-org/go-waku/waku/persistence/sqlite"
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"go.uber.org/zap"
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)
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func validateDBUrl(val string) error {
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matched, err := regexp.Match(`^[\w\+]+:\/\/[\w\/\\\.\:\@]+\?{0,1}.*$`, []byte(val))
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if !matched || err != nil {
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return errors.New("invalid db url option format")
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}
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return nil
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}
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// DBSettings hold db specific configuration settings required during the db initialization
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type DBSettings struct {
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Vacuum bool
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}
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// ExtractDBAndMigration will return a database connection, and migration function that should be used depending on a database connection string
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func ExtractDBAndMigration(databaseURL string, dbSettings DBSettings, logger *zap.Logger) (*sql.DB, func(*sql.DB) error, error) {
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var db *sql.DB
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var migrationFn func(*sql.DB) error
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var err error
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logger = logger.Named("db-setup")
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dbURL := ""
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if databaseURL != "" {
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err := validateDBUrl(databaseURL)
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if err != nil {
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return nil, nil, err
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}
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dbURL = databaseURL
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} else {
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// In memoryDB
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dbURL = "sqlite3://:memory:"
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}
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dbURLParts := strings.Split(dbURL, "://")
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dbEngine := dbURLParts[0]
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dbParams := dbURLParts[1]
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switch dbEngine {
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case "sqlite3":
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db, err = sqlite.NewDB(dbParams, dbSettings.Vacuum, logger)
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migrationFn = sqlite.Migrations
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case "postgresql":
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db, err = postgres.NewDB(dbURL, dbSettings.Vacuum, logger)
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migrationFn = postgres.Migrations
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default:
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err = errors.New("unsupported database engine")
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}
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if err != nil {
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return nil, nil, err
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}
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return db, migrationFn, nil
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}
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