[PATCH 1/4] Add new "version" command

[Hans de Goede <hdegoede@redhat.com>]

Add a new "version" command which prints the grub PACKAGE_STRING +
build time and date. This is useful to check if the expected version is
running, for e.g. trouble-shooting purposes.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 grub-core/kern/corecmd.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/grub-core/kern/corecmd.c b/grub-core/kern/corecmd.c
index d9412a316..43273b901 100644
--- a/grub-core/kern/corecmd.c
+++ b/grub-core/kern/corecmd.c
@@ -170,6 +170,15 @@ grub_core_cmd_ls (struct grub_command *cmd __attribute__ ((unused)),
   return grub_errno;
 }
 
+/* version */
+static grub_err_t
+grub_core_cmd_version (struct grub_command *cmd __attribute__ ((unused)),
+		       int argc, char *argv[])
+{
+  grub_printf ("%s, build %s %s\n", PACKAGE_STRING, __DATE__, __TIME__);
+  return 0;
+}
+
 void
 grub_register_core_commands (void)
 {
@@ -186,4 +195,6 @@ grub_register_core_commands (void)
 			 N_("[ARG]"), N_("List devices or files."));
   grub_register_command ("insmod", grub_core_cmd_insmod,
 			 N_("MODULE"), N_("Insert a module."));
+  grub_register_command ("version", grub_core_cmd_version, 0,
+			 N_("Print grub version and build time."));
 }
-- 
2.17.0.rc1