strbuf: change an always NULL/"" strbuf_addftime() param to bool
strbuf_addftime() allows callers to pass a time zone name for
expanding %Z. The only current caller either passes the empty string
or NULL, in which case %Z is handed over verbatim to strftime(3).
Replace that string parameter with a flag controlling whether to
remove %Z from the format specification. This simplifies the code.
Commit-message-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/date.c b/date.c
index 5580c40..8aca136 100644
--- a/date.c
+++ b/date.c
@@ -243,7 +243,7 @@ const char *show_date(unsigned long time, int tz, const struct date_mode *mode)
tm->tm_hour, tm->tm_min, tm->tm_sec, tz);
else if (mode->type == DATE_STRFTIME)
strbuf_addftime(&timebuf, mode->strftime_fmt, tm, tz,
- mode->local ? NULL : "");
+ !mode->local);
else
strbuf_addf(&timebuf, "%.3s %.3s %d %02d:%02d:%02d %d%c%+05d",
weekday_names[tm->tm_wday],
diff --git a/strbuf.c b/strbuf.c
index be3b9e3..89e40bb 100644
--- a/strbuf.c
+++ b/strbuf.c
@@ -786,7 +786,7 @@ char *xstrfmt(const char *fmt, ...)
}
void strbuf_addftime(struct strbuf *sb, const char *fmt, const struct tm *tm,
- int tz_offset, const char *tz_name)
+ int tz_offset, int suppress_tz_name)
{
struct strbuf munged_fmt = STRBUF_INIT;
size_t hint = 128;
@@ -815,8 +815,7 @@ void strbuf_addftime(struct strbuf *sb, const char *fmt, const struct tm *tm,
fmt++;
break;
case 'Z':
- if (tz_name) {
- strbuf_addstr(&munged_fmt, tz_name);
+ if (suppress_tz_name) {
fmt++;
break;
}
diff --git a/strbuf.h b/strbuf.h
index 6708cef..9262615 100644
--- a/strbuf.h
+++ b/strbuf.h
@@ -343,11 +343,12 @@ extern void strbuf_vaddf(struct strbuf *sb, const char *fmt, va_list ap);
* `tz_offset` is in decimal hhmm format, e.g. -600 means six hours west
* of Greenwich, and it's used to expand %z internally. However, tokens
* with modifiers (e.g. %Ez) are passed to `strftime`.
- * `tz_name` is used to expand %Z internally unless it's NULL.
+ * `suppress_tz_name`, when set, expands %Z internally to the empty
+ * string rather than passing it to `strftime`.
*/
extern void strbuf_addftime(struct strbuf *sb, const char *fmt,
const struct tm *tm, int tz_offset,
- const char *tz_name);
+ int suppress_tz_name);
/**
* Read a given size of data from a FILE* pointer to the buffer.
