[Qemu-devel] [PATCH 1/1] Add -version-simple argument, printing only version number.

[Jes.Sorensen@redhat.com]

From: Jes Sorensen <Jes.Sorensen@redhat.com>

Add -version-simple argument for QEMU, printing just the version
number, without any supporting text.

This makes it simpler for other apps, such as libvirt, to parse the
version string from QEMU independant of how the naming string may
change.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
---
 qemu-options.hx |    8 ++++++++
 vl.c            |    9 +++++++++
 2 files changed, 17 insertions(+), 0 deletions(-)

diff --git a/qemu-options.hx b/qemu-options.hx
index 12f6b51..e4f3979 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -27,6 +27,14 @@ STEXI
 Display version information and exit
 ETEXI
 
+DEF("version-simple", 0, QEMU_OPTION_version_simple,
+    "-version-simple display version information and exit\n", QEMU_ARCH_ALL)
+STEXI
+@item -version-simple
+@findex -version-simple
+Display basic version number information and exit
+ETEXI
+
 DEF("M", HAS_ARG, QEMU_OPTION_M,
     "-M machine      select emulated machine (-M ? for list)\n", QEMU_ARCH_ALL)
 STEXI
diff --git a/vl.c b/vl.c
index 85bcc84..5adca87 100644
--- a/vl.c
+++ b/vl.c
@@ -2015,6 +2015,11 @@ static void version(void)
     printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
 }
 
+static void version_simple(void)
+{
+    printf(QEMU_VERSION QEMU_PKGVERSION "\n");
+}
+
 static void help(int exitcode)
 {
     const char *options_help =
@@ -2960,6 +2965,10 @@ int main(int argc, char **argv, char **envp)
                 version();
                 exit(0);
                 break;
+            case QEMU_OPTION_version_simple:
+                version_simple();
+                exit(0);
+                break;
             case QEMU_OPTION_m: {
                 uint64_t value;
                 char *ptr;
-- 
1.6.6.1