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[CLI] Quiet mode for all commands #431

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merged 8 commits into from
Jan 6, 2023
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mohsenari
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Summary

  • Did a sweep for fmt.print and changed all instances of to to fmt.Fprint except in debug.
  • Removed custom IO writer and used cobra command's cmd.SetErr(io.Discard) at root level.
  • Changed all os.stdout writers passed to commands to cmd.ErrOrStderr() due to discussion around writing outputs to stderr rather than stdout.
  • Changed PersistentPreRunE to 'PreRunEin subcommands because it was causing the subcommands ignore the root command'sPersistentPreRunE` which has the quiet flag.

How was it tested?

  • Compile
  • run devbox commands with -q and without -q
  • confirm -q silences outputs

@mohsenari mohsenari requested review from mikeland73 and savil January 6, 2023 03:22
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Change looks good, but unless I'm misunderstanding something everything should be stdout instead of stderr right?

Side note, we are currently sending errors to stdout in DebugMiddleware. That's another separate fix but I assume those should go to stderr instead and IMO those should not listen to quiet flag?

func addCmdFunc(_ *cobra.Command, args []string, flags addCmdFlags) error {
box, err := devbox.Open(flags.config.path, os.Stdout)
func addCmdFunc(cmd *cobra.Command, args []string, flags addCmdFlags) error {
box, err := devbox.Open(flags.config.path, cmd.ErrOrStderr())
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These should be OutOrStdout no?

@@ -26,6 +27,11 @@ func RootCmd() *cobra.Command {
command := &cobra.Command{
Use: "devbox",
Short: "Instant, easy, predictable development environments",
PersistentPreRun: func(cmd *cobra.Command, args []string) {
if flags.quiet {
cmd.SetErr(io.Discard)
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Should be SetOut ?

PersistentPreRunE: nix.EnsureInstalled,
Use: "add <pkg>...",
Short: "Add a new package to your devbox",
PreRunE: nix.EnsureInstalled,
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Just curious, why this change? can we not have 2 PersistentPreRunE ? (one in root and another in the subcommands?)

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A found it spf13/cobra#252

looks like others were confused by this as well. Good find!

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This was causing the subcommands ignore the persistentPreRun at root level which contains -q flag. This was the bug I couldn't solve yesterday but eventually did 😄

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Found Slack conversation where stderr vs out was discussed. IMakes sense

Also found this https://unix.stackexchange.com/questions/331611/do-progress-reports-logging-information-belong-on-stderr-or-stdout

@mohsenari mohsenari force-pushed the mohsen--quiet-mode-followup branch from 806cc5a to 1c50665 Compare January 6, 2023 20:27
@mohsenari mohsenari force-pushed the mohsen--quiet-mode-followup branch from 1c50665 to d88f07a Compare January 6, 2023 21:00
@mohsenari mohsenari merged commit d3494d6 into main Jan 6, 2023
@mohsenari mohsenari deleted the mohsen--quiet-mode-followup branch January 6, 2023 21:28
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2 participants