PRItime: introduce a new "printf format" for timestamps

Currently, Git's source code treats all timestamps as if they were
unsigned longs. Therefore, it is okay to write "%lu" when printing them.

There is a substantial problem with that, though: at least on Windows,
time_t is *larger* than unsigned long, and hence we will want to switch
away from the ill-specified `unsigned long` data type.

So let's introduce the pseudo format "PRItime" (currently simply being
defined to "lu") to make it easier to change the data type used for
timestamps.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 13 insertions, 13 deletions

diff --git a/date.c b/date.c
index 495c207..5c33dfd 100644
--- a/date.c
+++ b/date.c
@@ -100,41 +100,41 @@ void show_date_relative(unsigned long time, int tz,
 	diff = now->tv_sec - time;
 	if (diff < 90) {
 		strbuf_addf(timebuf,
-			 Q_("%lu second ago", "%lu seconds ago", diff), diff);
+			 Q_("%"PRItime" second ago", "%"PRItime" seconds ago", diff), diff);
 		return;
 	}
 	/* Turn it into minutes */
 	diff = (diff + 30) / 60;
 	if (diff < 90) {
 		strbuf_addf(timebuf,
-			 Q_("%lu minute ago", "%lu minutes ago", diff), diff);
+			 Q_("%"PRItime" minute ago", "%"PRItime" minutes ago", diff), diff);
 		return;
 	}
 	/* Turn it into hours */
 	diff = (diff + 30) / 60;
 	if (diff < 36) {
 		strbuf_addf(timebuf,
-			 Q_("%lu hour ago", "%lu hours ago", diff), diff);
+			 Q_("%"PRItime" hour ago", "%"PRItime" hours ago", diff), diff);
 		return;
 	}
 	/* We deal with number of days from here on */
 	diff = (diff + 12) / 24;
 	if (diff < 14) {
 		strbuf_addf(timebuf,
-			 Q_("%lu day ago", "%lu days ago", diff), diff);
+			 Q_("%"PRItime" day ago", "%"PRItime" days ago", diff), diff);
 		return;
 	}
 	/* Say weeks for the past 10 weeks or so */
 	if (diff < 70) {
 		strbuf_addf(timebuf,
-			 Q_("%lu week ago", "%lu weeks ago", (diff + 3) / 7),
+			 Q_("%"PRItime" week ago", "%"PRItime" weeks ago", (diff + 3) / 7),
 			 (diff + 3) / 7);
 		return;
 	}
 	/* Say months for the past 12 months or so */
 	if (diff < 365) {
 		strbuf_addf(timebuf,
-			 Q_("%lu month ago", "%lu months ago", (diff + 15) / 30),
+			 Q_("%"PRItime" month ago", "%"PRItime" months ago", (diff + 15) / 30),
 			 (diff + 15) / 30);
 		return;
 	}
@@ -145,20 +145,20 @@ void show_date_relative(unsigned long time, int tz,
 		unsigned long months = totalmonths % 12;
 		if (months) {
 			struct strbuf sb = STRBUF_INIT;
-			strbuf_addf(&sb, Q_("%lu year", "%lu years", years), years);
+			strbuf_addf(&sb, Q_("%"PRItime" year", "%"PRItime" years", years), years);
 			strbuf_addf(timebuf,
 				 /* TRANSLATORS: "%s" is "<n> years" */
-				 Q_("%s, %lu month ago", "%s, %lu months ago", months),
+				 Q_("%s, %"PRItime" month ago", "%s, %"PRItime" months ago", months),
 				 sb.buf, months);
 			strbuf_release(&sb);
 		} else
 			strbuf_addf(timebuf,
-				 Q_("%lu year ago", "%lu years ago", years), years);
+				 Q_("%"PRItime" year ago", "%"PRItime" years ago", years), years);
 		return;
 	}
 	/* Otherwise, just years. Centuries is probably overkill. */
 	strbuf_addf(timebuf,
-		 Q_("%lu year ago", "%lu years ago", (diff + 183) / 365),
+		 Q_("%"PRItime" year ago", "%"PRItime" years ago", (diff + 183) / 365),
 		 (diff + 183) / 365);
 }
 
@@ -179,7 +179,7 @@ const char *show_date(unsigned long time, int tz, const struct date_mode *mode)
 
 	if (mode->type == DATE_UNIX) {
 		strbuf_reset(&timebuf);
-		strbuf_addf(&timebuf, "%lu", time);
+		strbuf_addf(&timebuf, "%"PRItime, time);
 		return timebuf.buf;
 	}
 
@@ -188,7 +188,7 @@ const char *show_date(unsigned long time, int tz, const struct date_mode *mode)
 
 	if (mode->type == DATE_RAW) {
 		strbuf_reset(&timebuf);
-		strbuf_addf(&timebuf, "%lu %+05d", time, tz);
+		strbuf_addf(&timebuf, "%"PRItime" %+05d", time, tz);
 		return timebuf.buf;
 	}
 
@@ -643,7 +643,7 @@ static void date_string(unsigned long date, int offset, struct strbuf *buf)
 		offset = -offset;
 		sign = '-';
 	}
-	strbuf_addf(buf, "%lu %c%02d%02d", date, sign, offset / 60, offset % 60);
+	strbuf_addf(buf, "%"PRItime" %c%02d%02d", date, sign, offset / 60, offset % 60);
 }
 
 /*