jay brown
91 lines
2.2 KiB
Go
91 lines
2.2 KiB
Go
package database
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import (
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"context"
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"database/sql"
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"embed"
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"errors"
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"fmt"
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"log/slog"
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"queryorchestration/internal/serviceconfig/database"
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"github.com/golang-migrate/migrate/v4"
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_ "github.com/golang-migrate/migrate/v4/database/postgres"
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_ "github.com/golang-migrate/migrate/v4/source/file"
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"github.com/golang-migrate/migrate/v4/source/iofs"
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_ "github.com/lib/pq"
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)
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func createDB(ctx context.Context, cfg database.ConfigProvider) error {
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slog.Debug("creating connection to admin database", "uri", cfg.GetDBAdminDBURI())
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db, err := sql.Open(cfg.GetDBDriver(), cfg.GetDBAdminDBURI())
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if err != nil {
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return fmt.Errorf("error opening admin database: %w", err)
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}
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slog.Debug("pinging admin database", "uri", cfg.GetDBAdminDBURI())
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err = db.PingContext(ctx)
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if err != nil {
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return fmt.Errorf("error pinging admin database: %w", err)
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}
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slog.Debug("creating admin database", "uri", cfg.GetDBAdminDBURI())
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_, err = db.Exec(fmt.Sprintf("CREATE DATABASE %s", cfg.GetDBName()))
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if err != nil {
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slog.Info("database not created", "name", cfg.GetDBName(), "error", err.Error())
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} else {
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slog.Info("database created", "name", cfg.GetDBName())
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}
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slog.Debug("creating connection to database", "uri", cfg.GetDBAdminDBURI())
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db, err = sql.Open(cfg.GetDBDriver(), cfg.GetDBURI())
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if err != nil {
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return fmt.Errorf("error opening database: %w", err)
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}
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slog.Debug("pinging database", "uri", cfg.GetDBAdminDBURI())
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err = db.PingContext(ctx)
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if err != nil {
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return fmt.Errorf("error pinging database: %w", err)
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}
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return nil
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}
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//go:embed migrations/*.sql
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var migrations embed.FS
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func RunMigrations(ctx context.Context, cfg database.ConfigProvider) error {
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err := createDB(ctx, cfg)
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if err != nil {
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return err
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}
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source, err := iofs.New(migrations, "migrations")
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if err != nil {
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return err
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}
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m, err := migrate.NewWithSourceInstance("iofs", source, cfg.GetDBURI())
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if err != nil {
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return fmt.Errorf("failed to create migrate instance: %w", err)
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}
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err = m.Up()
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if errors.Is(err, migrate.ErrNoChange) {
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slog.Info("No migration changes required")
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} else if err != nil {
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return fmt.Errorf("failed to apply migrations: %w", err)
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} else {
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slog.Info("Migrations applied successfully!")
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}
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return nil
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}
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