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From: Jeff King <peff@peff.net>
To: Patrick Steinhardt <ps@pks.im>
Cc: git@vger.kernel.org
Subject: Re: [PATCH 1/9] fetch: drop unused DISPLAY_FORMAT_UNKNOWN enum value
Date: Thu, 18 May 2023 20:13:09 -0400	[thread overview]
Message-ID: <20230519001309.GA2442034@coredump.intra.peff.net> (raw)
In-Reply-To: <9417a62e9bbd30d9350b65e5396a31f9cb7c60b6.1684324059.git.ps@pks.im>

On Wed, May 17, 2023 at 01:48:42PM +0200, Patrick Steinhardt wrote:

> With 50957937f9 (fetch: introduce `display_format` enum, 2023-05-10), a
> new enumeration was introduced to determine the display format that is
> to be used by git-fetch(1). The `DISPLAY_FORMAT_UNKNOWN` value isn't
> ever used though, and neither do we rely on the explicit `0` value for
> initialization anywhere.

To be slightly pedantic, we'd also want to make sure the we do not rely
on the zero value for reading, like:

  if (display_state->format)
     ....

But having looked over the code, we don't (it's always a switch or
equality with a known name), so this is safe to do.

Thanks for cleaning this up.

> diff --git a/builtin/fetch.c b/builtin/fetch.c
> index 849a9be421..9147b700e5 100644
> --- a/builtin/fetch.c
> +++ b/builtin/fetch.c
> @@ -58,7 +58,6 @@ enum {
>  };
>  
>  enum display_format {
> -	DISPLAY_FORMAT_UNKNOWN = 0,
>  	DISPLAY_FORMAT_FULL,
>  	DISPLAY_FORMAT_COMPACT,
>  	DISPLAY_FORMAT_PORCELAIN,

Just for similar situations in the future, I think we could do:

  DISPLAY_FORMAT_FULL = 1,

if we were worried about keeping the zero-behavior the same for existing
callers. But given how new and how limited this code is, I feel
confident that we've checked all of the code, and what you've written
above is preferable.

-Peff

  reply	other threads:[~2023-05-19  0:13 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-05-17 11:48 [PATCH 0/9] fetch: smallish cleanups Patrick Steinhardt
2023-05-17 11:48 ` [PATCH 1/9] fetch: drop unused DISPLAY_FORMAT_UNKNOWN enum value Patrick Steinhardt
2023-05-19  0:13   ` Jeff King [this message]
2023-05-17 11:48 ` [PATCH 2/9] fetch: drop unneeded NULL-check for `remote_ref` Patrick Steinhardt
2023-05-19  0:13   ` Jeff King
2023-05-17 11:48 ` [PATCH 3/9] fetch: pass through `fetch_config` directly Patrick Steinhardt
2023-05-19  0:18   ` Jeff King
2023-05-22  8:58     ` Patrick Steinhardt
2023-05-22 19:17       ` Jeff King
2023-05-17 11:48 ` [PATCH 4/9] fetch: use `fetch_config` to store "fetch.prune" value Patrick Steinhardt
2023-05-19  0:21   ` Jeff King
2023-05-17 11:49 ` [PATCH 5/9] fetch: use `fetch_config` to store "fetch.pruneTags" value Patrick Steinhardt
2023-05-17 11:49 ` [PATCH 6/9] fetch: use `fetch_config` to store "fetch.showForcedUpdates" value Patrick Steinhardt
2023-05-17 11:49 ` [PATCH 7/9] fetch: use `fetch_config` to store "fetch.recurseSubmodules" value Patrick Steinhardt
2023-05-17 11:49 ` [PATCH 8/9] fetch: use `fetch_config` to store "fetch.parallel" value Patrick Steinhardt
2023-05-17 11:49 ` [PATCH 9/9] fetch: use `fetch_config` to store "submodule.fetchJobs" value Patrick Steinhardt

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