From b93f5908e2f0932620e5120fb52a942fa5573cf9 Mon Sep 17 00:00:00 2001
From: Elliott Hughes <enh@google.com>
Date: Tue, 1 Jun 2021 15:59:08 -0700
Subject: date: add -s.

Used by someone's script.
---
 toys/posix/date.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/toys/posix/date.c b/toys/posix/date.c
index 86c2d343..99a41695 100644
--- a/toys/posix/date.c
+++ b/toys/posix/date.c
@@ -7,7 +7,7 @@
  * Note: setting a 2 year date is 50 years back/forward from today,
  * not posix's hardwired magic dates.
 
-USE_DATE(NEWTOY(date, "d:D:I(iso)(iso-8601):;r:u(utc)[!dr]", TOYFLAG_BIN))
+USE_DATE(NEWTOY(date, "d:D:I(iso)(iso-8601):;r:s:u(utc)[!dr]", TOYFLAG_BIN))
 
 config DATE
   bool "date"
@@ -21,6 +21,7 @@ config DATE
     -D	+FORMAT for SET or -d (instead of MMDDhhmm[[CC]YY][.ss])
     -I RES	ISO 8601 with RESolution d=date/h=hours/m=minutes/s=seconds/n=ns
     -r	Use modification time of FILE instead of current date
+    -s DATE	Set the system clock to DATE.
     -u	Use UTC instead of current timezone
 
     Supported input formats:
@@ -59,7 +60,7 @@ config DATE
 #include "toys.h"
 
 GLOBALS(
-  char *r, *I, *D, *d;
+  char *s, *r, *I, *D, *d;
 
   unsigned nano;
 )
@@ -170,6 +171,11 @@ void date_main(void)
     TT.nano = ts.tv_nsec;
   }
 
+  if (FLAG(s)) {
+    if (setdate) help_exit("can't set two dates at once");
+    setdate = TT.s;
+  }
+
   // Fall through if no arguments
   if (!setdate);
   // Display the date?
-- 
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