From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001

From: Peter Jones <pjones@redhat.com>

Date: Tue, 11 Sep 2018 14:20:37 -0400

Subject: [PATCH] Add a "version" command

This adds a command that shows you info about grub's version, the grub

target platform, the compiler version, and if you built with

--with-rpm-version=<string>, the rpm package version.

Signed-off-by: Peter Jones <pjones@redhat.com>

[rharwood: don't say GNU, commit message cleanup]

Signed-off-by: Robbie Harwood <rharwood@redhat.com>

---

 configure.ac                 | 13 ++++++++++

 grub-core/Makefile.core.def  |  5 ++++

 grub-core/commands/version.c | 56 ++++++++++++++++++++++++++++++++++++++++++++

 config.h.in                  |  1 +

 4 files changed, 75 insertions(+)

 create mode 100644 grub-core/commands/version.c

diff --git a/configure.ac b/configure.ac

index 54462e0892..7b4e1854d3 100644

--- a/configure.ac

+++ b/configure.ac

@@ -284,6 +284,19 @@ AC_SUBST(target_cpu)

 AC_SUBST(platform)

 # Define default variables

+have_with_rpm_version=n

+AC_ARG_WITH([rpm_version],

+	    AS_HELP_STRING([--with-rpm-version=VERSION],

+			   [set the rpm package version [[guessed]]]),

+	    [have_with_rpm_version=y],

+	    [have_with_rpm_version=n])

+if test x$have_with_rpm_version = xy; then

+  rpm_version="$with_rpm_version"

+else

+  rpm_version=""

+fi

+GRUB_RPM_VERSION="$rpm_version"

+AC_SUBST(GRUB_RPM_VERSION)

 have_with_bootdir=n

 AC_ARG_WITH([bootdir],

diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def

index 4e7d90da76..4f203533f5 100644

--- a/grub-core/Makefile.core.def

+++ b/grub-core/Makefile.core.def

@@ -579,6 +579,11 @@ image = {

   enable = mips_loongson;

 };

+module = {

+  name = version;

+  common = commands/version.c;

+};

+

 module = {

   name = disk;

   common = lib/disk.c;

diff --git a/grub-core/commands/version.c b/grub-core/commands/version.c

new file mode 100644

index 0000000000..de0acb07ba

--- /dev/null

+++ b/grub-core/commands/version.c

@@ -0,0 +1,56 @@

+/* version.c - Command to print the grub version and build info. */

+/*

+ *  GRUB  --  GRand Unified Bootloader

+ *  Copyright (C) 2006,2007,2008  Free Software Foundation, Inc.

+ *

+ *  GRUB is free software: you can redistribute it and/or modify

+ *  it under the terms of the GNU General Public License as published by

+ *  the Free Software Foundation, either version 3 of the License, or

+ *  (at your option) any later version.

+ *

+ *  GRUB is distributed in the hope that it will be useful,

+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of

+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

+ *  GNU General Public License for more details.

+ *

+ *  You should have received a copy of the GNU General Public License

+ *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.

+ */

+

+#include <grub/dl.h>

+#include <grub/term.h>

+#include <grub/time.h>

+#include <grub/types.h>

+#include <grub/misc.h>

+#include <grub/extcmd.h>

+#include <grub/i18n.h>

+

+GRUB_MOD_LICENSE ("GPLv3+");

+

+static grub_err_t

+grub_cmd_version (grub_command_t cmd UNUSED, int argc, char **args UNUSED)

+{

+  if (argc != 0)

+    return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("no arguments expected"));

+

+  grub_printf (_("GRUB version %s\n"), PACKAGE_VERSION);

+  grub_printf (_("Platform %s-%s\n"), GRUB_TARGET_CPU, GRUB_PLATFORM);

+  if (grub_strlen(GRUB_RPM_VERSION) != 0)

+    grub_printf (_("RPM package version %s\n"), GRUB_RPM_VERSION);

+  grub_printf (_("Compiler version %s\n"), __VERSION__);

+

+  return 0;

+}

+

+static grub_command_t cmd;

+

+GRUB_MOD_INIT(version)

+{

+  cmd = grub_register_command ("version", grub_cmd_version, NULL,

+			       N_("Print version and build information."));

+}

+

+GRUB_MOD_FINI(version)

+{

+  grub_unregister_command (cmd);

+}

diff --git a/config.h.in b/config.h.in

index 9e8f9911b1..c7e316f0f1 100644

--- a/config.h.in

+++ b/config.h.in

@@ -59,6 +59,7 @@

 #define GRUB_TARGET_CPU "@GRUB_TARGET_CPU@"

 #define GRUB_PLATFORM "@GRUB_PLATFORM@"

+#define GRUB_RPM_VERSION "@GRUB_RPM_VERSION@"

 #define RE_ENABLE_I18N 1