mirror of
https://github.com/idanoo/autobrr
synced 2025-07-25 01:39:13 +00:00
89 lines
2.5 KiB
Go
89 lines
2.5 KiB
Go
// Copyright (c) 2021 - 2023, Ludvig Lundgren and the autobrr contributors.
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// SPDX-License-Identifier: GPL-2.0-or-later
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package database
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import (
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"database/sql"
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"github.com/autobrr/autobrr/pkg/errors"
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_ "github.com/lib/pq"
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)
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func (db *DB) openPostgres() error {
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var err error
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// open database connection
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if db.handler, err = sql.Open("postgres", db.DSN); err != nil {
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db.log.Fatal().Err(err).Msg("could not open postgres connection")
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return errors.Wrap(err, "could not open postgres connection")
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}
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err = db.handler.Ping()
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if err != nil {
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db.log.Fatal().Err(err).Msg("could not ping postgres database")
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return errors.Wrap(err, "could not ping postgres database")
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}
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// migrate db
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if err = db.migratePostgres(); err != nil {
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db.log.Fatal().Err(err).Msg("could not migrate postgres database")
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return errors.Wrap(err, "could not migrate postgres database")
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}
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return nil
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}
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func (db *DB) migratePostgres() error {
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tx, err := db.handler.Begin()
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if err != nil {
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return errors.Wrap(err, "error starting transaction")
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}
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defer tx.Rollback()
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initialSchema := `CREATE TABLE IF NOT EXISTS schema_migrations (
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id INTEGER PRIMARY KEY,
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version INTEGER NOT NULL
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);`
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if _, err := tx.Exec(initialSchema); err != nil {
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return errors.New("failed to create schema_migrations table")
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}
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var version int
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err = tx.QueryRow(`SELECT version FROM schema_migrations`).Scan(&version)
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if err != nil && !errors.Is(err, sql.ErrNoRows) {
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return errors.Wrap(err, "failed to query schema version")
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}
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if version == len(postgresMigrations) {
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return nil
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} else if version > len(postgresMigrations) {
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return errors.New("autobrr (version %d) older than schema (version: %d)", len(postgresMigrations), version)
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}
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db.log.Info().Msgf("Beginning database schema upgrade from version %v to version: %v", version, len(postgresMigrations))
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if version == 0 {
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if _, err := tx.Exec(postgresSchema); err != nil {
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return errors.Wrap(err, "failed to initialize schema")
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}
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} else {
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for i := version; i < len(postgresMigrations); i++ {
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db.log.Info().Msgf("Upgrading Database schema to version: %v", i)
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if _, err := tx.Exec(postgresMigrations[i]); err != nil {
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return errors.Wrap(err, "failed to execute migration #%v", i)
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}
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}
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}
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_, err = tx.Exec(`INSERT INTO schema_migrations (id, version) VALUES (1, $1) ON CONFLICT (id) DO UPDATE SET version = $1`, len(postgresMigrations))
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if err != nil {
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return errors.Wrap(err, "failed to bump schema version")
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}
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db.log.Info().Msgf("Database schema upgraded to version: %v", len(postgresMigrations))
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return tx.Commit()
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}
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