Re: [PATCH] strbuf_addftime(): handle "%s" manually

[Jeff King <peff@peff.net>]

On Tue, Nov 02, 2021 at 07:35:35AM -0400, Jeff King wrote:

> @@ -1019,6 +1024,13 @@ void strbuf_addftime(struct strbuf *sb, const char *fmt, const struct tm *tm,
>  			strbuf_addstr(&munged_fmt, "%%");
>  			fmt++;
>  			break;
> +		case 's':
> +			strbuf_addf(&munged_fmt, "%"PRItime,
> +				    tm_to_time_t(tm) -
> +				    3600 * (tz_offset / 100) -
> +				    60 * (tz_offset % 100));
> +			fmt++;
> +			break;

Looks like we may need something like this squashed in:

diff --git a/strbuf.c b/strbuf.c
index 33015b33df..995394f38e 100644
--- a/strbuf.c
+++ b/strbuf.c
@@ -1026,7 +1026,7 @@ void strbuf_addftime(struct strbuf *sb, const char *fmt, const struct tm *tm,
 			break;
 		case 's':
 			strbuf_addf(&munged_fmt, "%"PRItime,
-				    tm_to_time_t(tm) -
+				    (timestamp_t)tm_to_time_t(tm) -
 				    3600 * (tz_offset / 100) -
 				    60 * (tz_offset % 100));
 			fmt++;

because tm_to_time_t() returns an actual time_t, which will vary in
size. The 32-bit CI job complains:

  strbuf.c:1028:29: error: format '%lld' expects argument of type 'long long int', but argument 3 has type 'long int' [-Werror=format=]

-Peff