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authorVincent Ambo <tazjin@google.com>2020-01-06T16·00+0000
committerVincent Ambo <Vincent Ambo>2020-01-11T23·43+0000
commit8082d87da385e2a4aeaff915799d26feb42b83af (patch)
treea22174be203faacc06e3cccfaf698606c15952ae /third_party/git/date.c
parent7ef0d62730840ded097b524104cc0a0904591a63 (diff)
feat(third_party/git/date): add "dottime" format r/374
Adds dottime (as defined on https://dotti.me) as a timestamp format.

This format is designed to simplify working with timestamps across
many different timezones by keeping the timestamp format itself in
UTC (and indicating this with a dot character), but appending the
local offset.

This is implemented as a new format because the timestamp needs to be
rendered both as UTC and including the offset, an implementation using
a strftime formatting string is not sufficient.
Diffstat (limited to 'third_party/git/date.c')
-rw-r--r--third_party/git/date.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/third_party/git/date.c b/third_party/git/date.c
index 8126146c5069..06340a77f319 100644
--- a/third_party/git/date.c
+++ b/third_party/git/date.c
@@ -350,6 +350,21 @@ const char *show_date(timestamp_t time, int tz, const struct date_mode *mode)
 				tm->tm_mday,
 				tm->tm_hour, tm->tm_min, tm->tm_sec,
 				sign, tz / 100, tz % 100);
+	} else if (mode->type == DATE_DOTTIME) {
+		char sign = (tz >= 0) ? '+' : '-';
+		tz = abs(tz);
+
+		// Time is converted again without the timezone as the
+		// dottime format includes the zone only in offset
+		// position.
+		time_t t = gm_time_t(time, 0);
+		tm = gmtime(&t);
+		strbuf_addf(&timebuf, "%04d-%02d-%02dT%02d·%02d%c%02d%02d",
+				tm->tm_year + 1900,
+				tm->tm_mon + 1,
+				tm->tm_mday,
+				tm->tm_hour, tm->tm_min,
+				sign, tz / 100, tz % 100);
 	} else if (mode->type == DATE_RFC2822)
 		strbuf_addf(&timebuf, "%.3s, %d %.3s %d %02d:%02d:%02d %+05d",
 			weekday_names[tm->tm_wday], tm->tm_mday,
@@ -921,6 +936,8 @@ static enum date_mode_type parse_date_type(const char *format, const char **end)
 		return DATE_UNIX;
 	if (skip_prefix(format, "format", end))
 		return DATE_STRFTIME;
+	if (skip_prefix(format, "dottime", end))
+		return DATE_DOTTIME;
 	/*
 	 * Please update $__git_log_date_formats in
 	 * git-completion.bash when you add new formats.