>From fe67532bdf095dc9ebc0c7dd67be384e807a197c Mon Sep 17 00:00:00 2001
From: Alex Riesen <raa.lkml@xxxxxxxxx>
Date: Fri, 28 Aug 2009 20:59:59 +0200
Subject: [PATCH] Add date formatting functions with current time explicitely formatted
It should allow safe testing of this part of the code.
---
Alex Riesen, Fri, Aug 28, 2009 21:20:50 +0200:
> On Fri, Aug 28, 2009 at 21:15, Jeff King<peff@xxxxxxxx> wrote:
> > On Fri, Aug 28, 2009 at 09:03:19PM +0200, Alex Riesen wrote:
> >
> >> +unsigned long approxidate(const char *date)
> >> +{
> >> + struct timeval tv;
> >> + gettimeofday(&tv, NULL);
> >> + return approxidate_relative(date, &tv);
> >> +}
> >
> > This now always calls gettimeofday, whereas the original approxidate
> > only did if parse_date failed.
>
> Oh, bugger...
>
Rather like this, I mean :)
cache.h | 2 +
date.c | 150 ++++++++++++++++++++++++++++++++++++--------------------------
2 files changed, 89 insertions(+), 63 deletions(-)
diff --git a/cache.h b/cache.h
index dd7f71e..3fb0166 100644
--- a/cache.h
+++ b/cache.h
@@ -731,9 +731,11 @@ enum date_mode {
};
const char *show_date(unsigned long time, int timezone, enum date_mode mode);
+const char *show_date_relative(unsigned long time, int tz, const struct timeval *now);
int parse_date(const char *date, char *buf, int bufsize);
void datestamp(char *buf, int bufsize);
unsigned long approxidate(const char *);
+unsigned long approxidate_relative(const char *date, const struct timeval *now);
enum date_mode parse_date_format(const char *format);
#define IDENT_WARN_ON_NO_NAME 1
diff --git a/date.c b/date.c
index 409a17d..171e68f 100644
--- a/date.c
+++ b/date.c
@@ -84,6 +84,67 @@ static int local_tzoffset(unsigned long time)
return offset * eastwest;
}
+const char *show_date_relative(unsigned long time, int tz, const struct timeval *now)
+{
+ static char timebuf[100 /* TODO: can be optimized */];
+ unsigned long diff;
+ if (now->tv_sec < time)
+ return "in the future";
+ diff = now->tv_sec - time;
+ 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;
+ }
+ /* Give years and months for 5 years or so */
+ if (diff < 1825) {
+ unsigned long years = (diff + 183) / 365;
+ unsigned long months = (diff % 365 + 15) / 30;
+ int n;
+ n = snprintf(timebuf, sizeof(timebuf), "%lu year%s",
+ years, (years > 1 ? "s" : ""));
+ if (months)
+ snprintf(timebuf + n, sizeof(timebuf) - n,
+ ", %lu month%s ago",
+ months, (months > 1 ? "s" : ""));
+ else
+ snprintf(timebuf + n, sizeof(timebuf) - n,
+ " ago");
+ return timebuf;
+ }
+ /* Otherwise, just years. Centuries is probably overkill. */
+ snprintf(timebuf, sizeof(timebuf), "%lu years ago", (diff + 183) / 365);
+ return timebuf;
+
+}
+
const char *show_date(unsigned long time, int tz, enum date_mode mode)
{
struct tm *tm;
@@ -95,63 +156,9 @@ const char *show_date(unsigned long time, int tz, enum date_mode mode)
}
if (mode == DATE_RELATIVE) {
- unsigned long diff;
struct timeval now;
gettimeofday(&now, NULL);
- if (now.tv_sec < time)
- return "in the future";
- diff = now.tv_sec - time;
- 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;
- }
- /* Give years and months for 5 years or so */
- if (diff < 1825) {
- unsigned long years = (diff + 183) / 365;
- unsigned long months = (diff % 365 + 15) / 30;
- int n;
- n = snprintf(timebuf, sizeof(timebuf), "%lu year%s",
- years, (years > 1 ? "s" : ""));
- if (months)
- snprintf(timebuf + n, sizeof(timebuf) - n,
- ", %lu month%s ago",
- months, (months > 1 ? "s" : ""));
- else
- snprintf(timebuf + n, sizeof(timebuf) - n,
- " ago");
- return timebuf;
- }
- /* Otherwise, just years. Centuries is probably overkill. */
- snprintf(timebuf, sizeof(timebuf), "%lu years ago", (diff + 183) / 365);
- return timebuf;
+ return show_date_relative(time, tz, &now);
}
if (mode == DATE_LOCAL)
@@ -866,19 +873,13 @@ static const char *approxidate_digit(const char *date, struct tm *tm, int *num)
return end;
}
-unsigned long approxidate(const char *date)
+static unsigned long approximation(const char *date, const struct timeval *tv)
{
int number = 0;
struct tm tm, now;
- struct timeval tv;
time_t time_sec;
- char buffer[50];
- if (parse_date(date, buffer, sizeof(buffer)) > 0)
- return strtoul(buffer, NULL, 10);
-
- gettimeofday(&tv, NULL);
- time_sec = tv.tv_sec;
+ time_sec = tv->tv_sec;
localtime_r(&time_sec, &tm);
now = tm;
for (;;) {
@@ -899,3 +900,26 @@ unsigned long approxidate(const char *date)
tm.tm_year--;
return mktime(&tm);
}
+
+unsigned long approxidate_relative(const char *date, const struct timeval *tv)
+{
+ char buffer[50];
+
+ if (parse_date(date, buffer, sizeof(buffer)) > 0)
+ return strtoul(buffer, NULL, 10);
+
+ return approximation(date, tv);
+}
+
+unsigned long approxidate(const char *date)
+{
+ struct timeval tv;
+ char buffer[50];
+
+ if (parse_date(date, buffer, sizeof(buffer)) > 0)
+ return strtoul(buffer, NULL, 10);
+
+ gettimeofday(&tv, NULL);
+ return approximation(date, &tv);
+}
+
--
1.6.4.1.261.gf9874
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