Re: [RFC PATCH v2] Add 'human' date format
From: Andrei Rybak <hidden>
Date: 2018-07-11 20:34:38
On 2018-07-08 00:02, Linus Torvalds wrote:
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diff --git a/date.c b/date.c index 49f943e25..4486c028a 100644 --- a/date.c +++ b/date.c@@ -77,22 +77,16 @@ static struct tm *time_to_tm_local(timestamp_t time) } /* - * What value of "tz" was in effect back then at "time" in the - * local timezone? + * Fill in the localtime 'struct tm' for the supplied time, + * and return the local tz. */ -static int local_tzoffset(timestamp_t time) +static int local_time_tzoffset(time_t t, struct tm *tm) { - time_t t, t_local; - struct tm tm; + time_t t_local; int offset, eastwest; - if (date_overflows(time)) - die("Timestamp too large for this system: %"PRItime, time); - - t = (time_t)time; - localtime_r(&t, &tm); - t_local = tm_to_time_t(&tm); - + localtime_r(&t, tm); + t_local = tm_to_time_t(tm); if (t_local == -1) return 0; /* error; just use +0000 */ if (t_local < t) {@@ -107,6 +101,20 @@ static int local_tzoffset(timestamp_t time) return offset * eastwest; }
[...]
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+ const char *show_date(timestamp_t time, int tz, const struct date_mode *mode) { struct tm *tm; + struct tm human_tm = { 0 }; + int human_tz = -1;
Is -1 an OK initial value for timezone if local_time_tzoffset returns negative values as well? It looks like it doesn't matter for from functional
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static struct strbuf timebuf = STRBUF_INIT; if (mode->type == DATE_UNIX) {@@ -202,6 +281,15 @@ const char *show_date(timestamp_t time, int tz, const struct date_mode *mode) return timebuf.buf; } + if (mode->type == DATE_HUMAN) { + struct timeval now; + + gettimeofday(&now, NULL); + + /* Fill in the data for "current time" in human_tz and human_tm */ + human_tz = local_time_tzoffset(now.tv_sec, &human_tm); + } + if (mode->local) tz = local_tzoffset(time);
-- Best regards, Andrei Rybak