Thread (11 messages) 11 messages, 4 authors, 2018-11-27

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:
quoted hunk ↗ jump to hunk
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;
 }
[...]
quoted hunk ↗ jump to hunk
+
 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
quoted hunk ↗ jump to hunk
      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
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