bwilliams
465358609a
Short and single-letter names in application code become full words (tests keep theirs). Wrapped calls, signatures and composite literals put one item per line, and one-line function bodies are expanded. Exported names and groups of constants get doc comments, and comments refer to the renamed identifiers.
79 lines
2.0 KiB
Go
79 lines
2.0 KiB
Go
package migrate
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import (
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"errors"
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"fmt"
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"log/slog"
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"github.com/spf13/cobra"
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"git.avsdev.uk/Go/job-search/internal/cli"
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"git.avsdev.uk/Go/job-search/internal/store"
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)
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func commandDown(opts *cli.Options) *cobra.Command {
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cmd := &cobra.Command{
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Use: "down",
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Short: "Migrate SQLite database to a previous version",
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Long: `Roll back the most recent migrations.
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--steps 0 rolls back every migration which deletes all data and must be
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confirmed by providing -yes.`,
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Args: cobra.NoArgs,
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PersistentPreRun: func(cmd *cobra.Command, args []string) {
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slog.Debug("command persistent pre-run", "command", "migrate.down")
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},
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PersistentPostRun: func(cmd *cobra.Command, args []string) {
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slog.Debug("command persistent post-run", "command", "migrate.down")
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},
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RunE: func(cmd *cobra.Command, args []string) (err error) {
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slog.Debug("command run", "command", "migrate.down")
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yes, _ := cmd.Flags().GetBool("yes")
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steps, _ := cmd.Flags().GetUint("steps")
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migrator, db, err := openMigrator(cmd, opts, false, false)
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if err != nil {
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return err
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}
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defer closeDB(db, &err)
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results, err := store.StepDown(cmd.Context(), migrator, int(steps), yes)
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if len(results) == 0 && err == nil {
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fmt.Println("No changes made to database (empty)")
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return nil
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}
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if err == store.ErrWouldEmptyDatabase {
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return fmt.Errorf(
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"%w\n\nTo confirm you wish to proceed, pass the --yes flag", err,
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)
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}
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if printErr := printResults(cmd.OutOrStdout(), results); printErr != nil {
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return errors.Join(err, printErr)
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}
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if err != nil {
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return failure(cmd.OutOrStdout(), err)
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}
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return printVersion(cmd.Context(), cmd.OutOrStdout(), migrator)
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},
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}
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cmd.Flags().Uint(
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"steps",
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0,
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"number of migrations to roll back. 0 = all (deletes all data)",
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)
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if err := cmd.MarkFlagRequired("steps"); err != nil {
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panic(err) // only fails if the flag isn't defined
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}
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cmd.Flags().BoolP(
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"yes", "y",
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false,
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"confirm you are intending to roll back every migration",
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)
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return cmd
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}
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