date.c: add "show_date()" function.

Kind of like ctime(), but not as broken.

diff --git a/cache.h b/cache.h
index 80f9967..9de7709 100644 (file)
--- a/cache.h
+++ b/cache.h
@@ -166,6 +166,7 @@ extern void *read_object_with_reference(const unsigned char *sha1,
                                        unsigned long *size,
                                        unsigned char *sha1_ret);
 
+const char *show_date(unsigned long time, int timezone);
 void parse_date(char *date, char *buf, int bufsize);
 void datestamp(char *buf, int bufsize);
 

diff --git a/date.c b/date.c
index aa4fb3e..7371bc1 100644 (file)
--- a/date.c
+++ b/date.c
@@ -39,6 +39,34 @@ static const char *weekday_names[] = {
 };
 
 /*
+ * 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,
+ * even though it means "sixty minutes off"
+ */
+const char *show_date(unsigned long time, int tz)
+{
+       struct tm *tm;
+       time_t t;
+       static char timebuf[200];
+       int minutes;
+
+       minutes = tz < 0 ? -tz : tz;
+       minutes = (tz / 100)*60 + (tz % 100);
+       minutes = tz < 0 ? -minutes : minutes;
+       t = time - minutes * 60;
+       tm = gmtime(&t);
+       if (!tm)
+               return NULL;
+       sprintf(timebuf, "%.3s %.3s %d %02d:%02d:%02d %d %+05d",
+               weekday_names[tm->tm_wday],
+               month_names[tm->tm_mon],
+               tm->tm_mday,
+               tm->tm_hour, tm->tm_min, tm->tm_sec,
+               tm->tm_year + 1900, tz);
+       return timebuf;
+}
+
+/*
  * Check these. And note how it doesn't do the summer-time conversion.
  *
  * In my world, it's always summer, and things are probably a bit off