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-rw-r--r--date.c63
1 files changed, 55 insertions, 8 deletions
diff --git a/date.c b/date.c
index d780846b66..e387dcd397 100644
--- a/date.c
+++ b/date.c
@@ -37,6 +37,16 @@ static const char *weekday_names[] = {
"Sundays", "Mondays", "Tuesdays", "Wednesdays", "Thursdays", "Fridays", "Saturdays"
};
+static time_t gm_time_t(unsigned long time, int tz)
+{
+ int minutes;
+
+ minutes = tz < 0 ? -tz : tz;
+ minutes = (minutes / 100)*60 + (minutes % 100);
+ minutes = tz < 0 ? -minutes : minutes;
+ return time + minutes * 60;
+}
+
/*
* The "tz" thing is passed in as this strange "decimal parse of tz"
* thing, which means that tz -0100 is passed in as the integer -100,
@@ -44,21 +54,58 @@ static const char *weekday_names[] = {
*/
static struct tm *time_to_tm(unsigned long time, int tz)
{
- time_t t;
- int minutes;
-
- minutes = tz < 0 ? -tz : tz;
- minutes = (minutes / 100)*60 + (minutes % 100);
- minutes = tz < 0 ? -minutes : minutes;
- t = time + minutes * 60;
+ time_t t = gm_time_t(time, tz);
return gmtime(&t);
}
-const char *show_date(unsigned long time, int tz)
+const char *show_date(unsigned long time, int tz, int relative)
{
struct tm *tm;
static char timebuf[200];
+ if (relative) {
+ unsigned long diff;
+ time_t t = gm_time_t(time, tz);
+ struct timeval now;
+ gettimeofday(&now, NULL);
+ if (now.tv_sec < t)
+ return "in the future";
+ diff = now.tv_sec - t;
+ if (diff < 90) {
+ snprintf(timebuf, sizeof(timebuf), "%lu seconds ago", diff);
+ return timebuf;
+ }
+ /* Turn it into minutes */
+ diff = (diff + 30) / 60;
+ if (diff < 90) {
+ snprintf(timebuf, sizeof(timebuf), "%lu minutes ago", diff);
+ return timebuf;
+ }
+ /* Turn it into hours */
+ diff = (diff + 30) / 60;
+ if (diff < 36) {
+ snprintf(timebuf, sizeof(timebuf), "%lu hours ago", diff);
+ return timebuf;
+ }
+ /* We deal with number of days from here on */
+ diff = (diff + 12) / 24;
+ if (diff < 14) {
+ snprintf(timebuf, sizeof(timebuf), "%lu days ago", diff);
+ return timebuf;
+ }
+ /* Say weeks for the past 10 weeks or so */
+ if (diff < 70) {
+ snprintf(timebuf, sizeof(timebuf), "%lu weeks ago", (diff + 3) / 7);
+ return timebuf;
+ }
+ /* Say months for the past 12 months or so */
+ if (diff < 360) {
+ snprintf(timebuf, sizeof(timebuf), "%lu months ago", (diff + 15) / 30);
+ return timebuf;
+ }
+ /* Else fall back on absolute format.. */
+ }
+
tm = time_to_tm(time, tz);
if (!tm)
return NULL;