touch: implement -t TIME (needed for testsuite)

This changes date -d TIME format a bit, makes it more compatible

function                                             old     new   delta
parse_datestr                                        391     618    +227
touch_main                                           360     361      +1
packed_usage                                       26624   26615      -9

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 5 insertions, 1 deletions

diff --git a/coreutils/touch.c b/coreutils/touch.c
index 1b4a5f0ea..e79092fc1 100644
--- a/coreutils/touch.c
+++ b/coreutils/touch.c
@@ -64,10 +64,14 @@ int touch_main(int argc UNUSED_PARAM, char **argv)
 #if ENABLE_DESKTOP && ENABLE_LONG_OPTS
         applet_long_options = touch_longopts;
 #endif
-        opts = getopt32(argv, "c" IF_DESKTOP("r:d:")
+        /* -d and -t both set time. In coreutils,
+         * accepted data format differs a bit between -d and -t.
+         * We accept the same formats for both */
+        opts = getopt32(argv, "c" IF_DESKTOP("r:d:t:")
                                 /*ignored:*/ "fma"
                                 IF_DESKTOP(, &reference_file)
                                 IF_DESKTOP(, &date_str)
+                                IF_DESKTOP(, &date_str)
         );
 
         opts &= 1; /* only -c bit is left */