1 files changed, 18 insertions, 9 deletions

diff --git a/third_party/git/t/helper/test-date.c b/third_party/git/t/helper/test-date.c
index 099eff4f0fc8..585347ea487a 100644
--- a/third_party/git/t/helper/test-date.c
+++ b/third_party/git/t/helper/test-date.c
@@ -12,13 +12,13 @@ static const char *usage_msg = "\n"
 "  test-tool date is64bit\n"
 "  test-tool date time_t-is64bit\n";
 
-static void show_relative_dates(const char **argv)
+static void show_relative_dates(const char **argv, struct timeval *now)
 {
 	struct strbuf buf = STRBUF_INIT;
 
 	for (; *argv; argv++) {
 		time_t t = atoi(*argv);
-		show_date_relative(t, &buf);
+		show_date_relative(t, now, &buf);
 		printf("%s -> %s\n", *argv, buf.buf);
 	}
 	strbuf_release(&buf);
@@ -74,20 +74,20 @@ static void parse_dates(const char **argv)
 	strbuf_release(&result);
 }
 
-static void parse_approxidate(const char **argv)
+static void parse_approxidate(const char **argv, struct timeval *now)
 {
 	for (; *argv; argv++) {
 		timestamp_t t;
-		t = approxidate_relative(*argv);
+		t = approxidate_relative(*argv, now);
 		printf("%s -> %s\n", *argv, show_date(t, 0, DATE_MODE(ISO8601)));
 	}
 }
 
-static void parse_approx_timestamp(const char **argv)
+static void parse_approx_timestamp(const char **argv, struct timeval *now)
 {
 	for (; *argv; argv++) {
 		timestamp_t t;
-		t = approxidate_relative(*argv);
+		t = approxidate_relative(*argv, now);
 		printf("%s -> %"PRItime"\n", *argv, t);
 	}
 }
@@ -103,13 +103,22 @@ static void getnanos(const char **argv)
 
 int cmd__date(int argc, const char **argv)
 {
+	struct timeval now;
 	const char *x;
 
+	x = getenv("GIT_TEST_DATE_NOW");
+	if (x) {
+		now.tv_sec = atoi(x);
+		now.tv_usec = 0;
+	}
+	else
+		gettimeofday(&now, NULL);
+
 	argv++;
 	if (!*argv)
 		usage(usage_msg);
 	if (!strcmp(*argv, "relative"))
-		show_relative_dates(argv+1);
+		show_relative_dates(argv+1, &now);
 	else if (!strcmp(*argv, "human"))
 		show_human_dates(argv+1);
 	else if (skip_prefix(*argv, "show:", &x))
@@ -117,9 +126,9 @@ int cmd__date(int argc, const char **argv)
 	else if (!strcmp(*argv, "parse"))
 		parse_dates(argv+1);
 	else if (!strcmp(*argv, "approxidate"))
-		parse_approxidate(argv+1);
+		parse_approxidate(argv+1, &now);
 	else if (!strcmp(*argv, "timestamp"))
-		parse_approx_timestamp(argv+1);
+		parse_approx_timestamp(argv+1, &now);
 	else if (!strcmp(*argv, "getnanos"))
 		getnanos(argv+1);
 	else if (!strcmp(*argv, "is64bit"))