[gnome-shell] main: Add generic --mode switch

[Florian MÃllner <fmuellner src gnome org>]

commit 5617f91281c5356d6814c9b5203ae551fc1c6926
Author: Florian MÃllner <fmuellner gnome org>
Date:   Wed May 16 22:56:27 2012 +0200

    main: Add generic --mode switch
    
    We are going to need "special" modes other than GDM, for instance
    for the initial setup[0]. Rather than adding one command line switch
    per mode (and logic to deal with multiple switches being given at
    the same time), add a generic --mode switch to specify the mode as
    string.
    
    [0] https://live.gnome.org/GnomeOS/Design/Whiteboards/InitialSetup
    
    https://bugzilla.gnome.org/show_bug.cgi?id=676156

 src/main.c |   13 +++++++++++--
 1 files changed, 11 insertions(+), 2 deletions(-)
---
diff --git a/src/main.c b/src/main.c
index 5b8bf81..b19ff29 100644
--- a/src/main.c
+++ b/src/main.c
@@ -36,6 +36,7 @@ extern GType gnome_shell_plugin_get_type (void);
 #define OVERRIDES_SCHEMA "org.gnome.shell.overrides"
 
 static gboolean is_gdm_mode = FALSE;
+static char *session_mode = NULL;
 
 #define DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER 1
 #define DBUS_REQUEST_NAME_REPLY_ALREADY_OWNER 4
@@ -257,11 +258,17 @@ GOptionEntry gnome_shell_options[] = {
     NULL
   },
   {
-    "gdm-mode", 0, 0, G_OPTION_ARG_NONE,
+    "gdm-mode", 0, G_OPTION_FLAG_HIDDEN, G_OPTION_ARG_NONE,
     &is_gdm_mode,
     N_("Mode used by GDM for login screen"),
     NULL
   },
+  {
+    "mode", 0, 0, G_OPTION_ARG_STRING,
+    &session_mode,
+    N_("Use a specific mode, e.g. \"gdm\" for login screen"),
+    "MODE"
+  },
   { NULL }
 };
 
@@ -324,7 +331,9 @@ main (int argc, char **argv)
   g_log_set_default_handler (default_log_handler, sender);
 
   /* Initialize the global object */
-  if (is_gdm_mode)
+  if (g_strcmp0 (session_mode, "gdm") == 0)
+      session_type = SHELL_SESSION_GDM;
+  else if (is_gdm_mode)
       session_type = SHELL_SESSION_GDM;
   else
       session_type = SHELL_SESSION_USER;