configure: Allow specifying 'preferred' VM distro choices

The create wizard will then list these options first

configure.ac

@@ -48,7 +48,7 @@ AC_ARG_WITH([qemu-user],
     [DEFAULT_QEMU_USER=$withval],
     [DEFAULT_QEMU_USER="root"])
 
-dnl
+dnl Don't list options that rhel doesn't support
 AC_ARG_ENABLE([unsupported-rhel-options],
   AC_HELP_STRING(
     [--enable-unsupported-rhel-options],
@@ -56,6 +56,13 @@ AC_ARG_ENABLE([unsupported-rhel-options],
   [test "x$enableval" == "xno" && ENABLE_UNSUPPORTED_RHEL_OPTS=0],
   [ENABLE_UNSUPPORTED_RHEL_OPTS=1])
 
+dnl Allow passing in a prefered distro list
+AC_ARG_WITH([preferred-distros],
+    AC_HELP_STRING(
+        [--with-preferred-distros],
+        [Distros to list first in New VM wizard @<:@default=root@:>@]),
+    [PREFERRED_DISTROS=$withval],
+    [PREFERRED_DISTROS=""])
 
 dnl -----------------------
 dnl Variable substitution
@@ -63,6 +70,7 @@ dnl -----------------------
 AC_SUBST([VIRTINST_VERSION])
 AC_SUBST([DEFAULT_QEMU_USER])
 AC_SUBST([ENABLE_UNSUPPORTED_RHEL_OPTS])
+AC_SUBST([PREFERRED_DISTROS])
 AM_CONDITIONAL([INSTALL_TUI], [test "x$with_tui" = "xyes"])
 
 
@@ -101,6 +109,11 @@ AC_MSG_NOTICE([Enable unsupported RHEL opts:    yes])
 else
 AC_MSG_NOTICE([Enable unsupported RHEL opts:    no])
 fi
+if test "x$PREFERRED_DISTROS" = "x" ; then
+AC_MSG_NOTICE([Preferred distros:               none])
+else
+AC_MSG_NOTICE([Preferred distros:               $PREFERRED_DISTROS])
+fi
 
 AC_MSG_NOTICE([])
 AC_MSG_NOTICE([])

src/Makefile.am

@@ -62,6 +62,7 @@ endif
 	  -e "s,::VIRTINST_VERSION::,$(VIRTINST_VERSION)," \
 	  -e "s,::DEFAULT_QEMU_USER::,$(DEFAULT_QEMU_USER)," \
 	  -e "s,::ENABLE_UNSUPPORTED_RHEL_OPTS::,$(ENABLE_UNSUPPORTED_RHEL_OPTS)," \
+	  -e "s|::PREFERRED_DISTROS::|$(PREFERRED_DISTROS)|" \
 	  < $< > $@
 
 $(PACKAGE): $(srcdir)/$(PACKAGE).in

src/virt-manager.py.in

@@ -58,6 +58,7 @@ data_dir = "::DATADIR::"
 
 default_qemu_user = "::DEFAULT_QEMU_USER::"
 rhel_enable_unsupported_opts = bool(int("::ENABLE_UNSUPPORTED_RHEL_OPTS::"))
+preferred_distros = [d for d in "::PREFERRED_DISTROS::".split(",") if d]
 
 logging_setup = False
 
@@ -381,6 +382,7 @@ def main():
     virtManager.config.running_config = config
     config.default_qemu_user = default_qemu_user
     config.enable_unsupported_rhel_opts = rhel_enable_unsupported_opts
+    config.preferred_distros = preferred_distros
 
     # Now we've got basic environment up & running we can fork
     if not options.nofork and not options.debug:

src/virtManager/config.py

@@ -103,6 +103,7 @@ class vmmConfig(object):
 
         # Use this key to disable certain features not supported on RHEL
         self.enable_unsupported_rhel_opts = True
+        self.preferred_distros = []
 
         self.status_icons = {
             libvirt.VIR_DOMAIN_BLOCKED: gtk.gdk.pixbuf_new_from_file_at_size(self.get_icon_dir() + "/state_running.png", 18, 18),

src/virtManager/create.py

@@ -688,7 +688,9 @@ class vmmCreate(vmmGObjectUI):
             model.append([OS_GENERIC, _("Generic")])
             return
 
-        variants = virtinst.FullVirtGuest.list_os_variants(_type)
+        preferred = self.config.preferred_distros
+        variants = virtinst.FullVirtGuest.list_os_variants(_type,
+                                                           preferred)
         for variant in variants:
             model.append([variant,
                           virtinst.FullVirtGuest.get_os_variant_label(_type,