2023-12-16 07:12:20 +00:00
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package main
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import (
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"fmt"
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"log/slog"
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"strings"
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"gitea.dwysokinski.me/twhelp/corev3/internal/migrations"
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"github.com/uptrace/bun/migrate"
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"github.com/urfave/cli/v2"
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)
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const migrationGoTemplate = `package %s
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import (
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"context"
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"fmt"
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"github.com/uptrace/bun"
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)
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func init() {
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migrations.MustRegister(func(ctx context.Context, db *bun.DB) error {
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fmt.Print(" [up migration] ")
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return nil
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}, func(ctx context.Context, db *bun.DB) error {
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fmt.Print(" [down migration] ")
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return nil
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})
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}
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`
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var cmdDB = &cli.Command{
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Name: "db",
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2023-12-23 09:54:47 +00:00
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Usage: "Manage the database",
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2023-12-16 07:12:20 +00:00
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Subcommands: []*cli.Command{
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{
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Name: "migrate",
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Usage: "Migrate database",
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Flags: dbFlags,
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Action: func(c *cli.Context) error {
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2023-12-16 09:37:26 +00:00
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shutdownSignalCtx, stop := newShutdownSignalContext(c.Context)
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defer stop()
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2023-12-16 07:12:20 +00:00
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logger := loggerFromCtx(c.Context)
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bunDB, err := newBunDBFromFlags(c)
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if err != nil {
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return err
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}
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defer func() {
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2023-12-16 09:37:26 +00:00
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logger.Debug("closing db connections...", slog.Int("db.openConnections", bunDB.Stats().OpenConnections))
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2023-12-16 07:12:20 +00:00
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if dbCloseErr := bunDB.Close(); dbCloseErr != nil {
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logger.Warn("couldn't close db connections", slog.Any("error", dbCloseErr))
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2023-12-16 09:37:26 +00:00
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} else {
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logger.Debug("db connections closed")
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2023-12-16 07:12:20 +00:00
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}
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}()
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migrator := migrations.NewMigrator(bunDB)
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2023-12-16 09:37:26 +00:00
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if err = migrator.Init(shutdownSignalCtx); err != nil {
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2023-12-16 07:12:20 +00:00
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return fmt.Errorf("couldn't init migrator: %w", err)
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}
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2023-12-16 09:37:26 +00:00
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if err = migrator.Lock(shutdownSignalCtx); err != nil {
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2023-12-16 07:12:20 +00:00
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return fmt.Errorf("couldn't lock db: %w", err)
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}
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defer func() {
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logger.Debug("unlocking db...")
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2023-12-16 09:37:26 +00:00
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// we use c.Context instead of shutdownSignalCtx here because we still want to unlock the db
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// even after one of the shutdown signals has been received
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2023-12-16 07:12:20 +00:00
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if unlockErr := migrator.Unlock(c.Context); unlockErr != nil {
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logger.Warn("couldn't unlock db", slog.Any("error", unlockErr))
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2023-12-16 09:37:26 +00:00
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} else {
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logger.Debug("db unlocked")
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2023-12-16 07:12:20 +00:00
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}
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}()
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2023-12-16 09:37:26 +00:00
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group, err := migrator.Migrate(shutdownSignalCtx)
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2023-12-16 07:12:20 +00:00
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if err != nil {
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return fmt.Errorf("migration failed: %w", err)
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}
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if group.ID == 0 {
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logger.Info("there are no new migrations to run")
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return nil
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}
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logger.Info(
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"migrations have been successfully applied",
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slog.Int64("group.id", group.ID),
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slog.String("group.migrations", group.Migrations.String()),
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)
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return nil
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},
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},
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{
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Name: "rollback",
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Usage: "Rollback the last migration group",
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Flags: dbFlags,
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Action: func(c *cli.Context) error {
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2023-12-16 09:37:26 +00:00
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shutdownSignalCtx, stop := newShutdownSignalContext(c.Context)
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defer stop()
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2023-12-16 07:12:20 +00:00
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logger := loggerFromCtx(c.Context)
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bunDB, err := newBunDBFromFlags(c)
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if err != nil {
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return err
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}
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defer func() {
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2023-12-16 09:37:26 +00:00
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logger.Debug("closing db connections...", slog.Int("db.openConnections", bunDB.Stats().OpenConnections))
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2023-12-16 07:12:20 +00:00
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if dbCloseErr := bunDB.Close(); dbCloseErr != nil {
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logger.Warn("couldn't close db connections", slog.Any("error", dbCloseErr))
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2023-12-16 09:37:26 +00:00
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} else {
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logger.Debug("db connections closed")
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2023-12-16 07:12:20 +00:00
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}
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}()
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migrator := migrations.NewMigrator(bunDB)
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2023-12-16 09:37:26 +00:00
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if err = migrator.Lock(shutdownSignalCtx); err != nil {
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2023-12-16 07:12:20 +00:00
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return fmt.Errorf("couldn't lock db: %w", err)
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}
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defer func() {
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logger.Debug("unlocking db...")
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2023-12-16 09:37:26 +00:00
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// we use c.Context instead of shutdownSignalCtx here because we still want to unlock the db
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// even after one of the shutdown signals has been received
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2023-12-16 07:12:20 +00:00
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if unlockErr := migrator.Unlock(c.Context); unlockErr != nil {
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logger.Warn("couldn't unlock db", slog.Any("error", unlockErr))
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2023-12-16 09:37:26 +00:00
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} else {
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logger.Debug("db unlocked")
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2023-12-16 07:12:20 +00:00
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}
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}()
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2023-12-16 09:37:26 +00:00
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group, err := migrator.Rollback(shutdownSignalCtx)
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2023-12-16 07:12:20 +00:00
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if err != nil {
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return fmt.Errorf("couldn't rollback last migration: %w", err)
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}
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if group.ID == 0 {
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logger.Info("there are no groups to roll back")
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return nil
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}
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logger.Info(
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"last migration group has been rolled back",
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slog.Int64("group.id", group.ID),
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slog.String("group.migrations", group.Migrations.String()),
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)
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return nil
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},
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},
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{
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Name: "create",
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Usage: "Create migration",
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Subcommands: []*cli.Command{
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{
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Name: "go",
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Usage: "Create Go migration",
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Action: func(c *cli.Context) error {
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logger := loggerFromCtx(c.Context)
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migrator := migrations.NewMigrator(nil)
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mf, err := migrator.CreateGoMigration(
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c.Context,
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strings.Join(c.Args().Slice(), "_"),
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migrate.WithGoTemplate(migrationGoTemplate),
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)
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if err != nil {
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return fmt.Errorf("couldn't create Go migration: %w", err)
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}
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logger.Info(
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"Go migration has been created",
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slog.String("migration.path", mf.Path),
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slog.String("migration.name", mf.Name),
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)
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return nil
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},
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},
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{
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Name: "sql",
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Usage: "Create SQL migration",
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Action: func(c *cli.Context) error {
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logger := loggerFromCtx(c.Context)
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migrator := migrations.NewMigrator(nil)
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files, err := migrator.CreateSQLMigrations(c.Context, strings.Join(c.Args().Slice(), "_"))
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if err != nil {
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return fmt.Errorf("couldn't create sql migration: %w", err)
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}
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for _, mf := range files {
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logger.Info(
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"SQL migration has been created",
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slog.String("migration.path", mf.Path),
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slog.String("migration.name", mf.Name),
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)
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}
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return nil
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},
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},
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},
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},
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},
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}
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