[network-manager-applet] vpn: gracefully print information about missing vpn plugin

[Thomas Haller <thaller src gnome org>]

commit bde917b0a6598126a508729c4a5fda0709b72303
Author: Thomas Haller <thaller redhat com>
Date:   Thu Aug 20 12:28:53 2015 +0200

    vpn: gracefully print information about missing vpn plugin
    
    VPN plugins are usually split into separate package, thus
    it might not be an error that a .name file mentions a
    plugin file that does not exist (because it isn't installed).
    
    Only print an info message about this.

 src/connection-editor/vpn-helpers.c |    9 +++++++--
 1 files changed, 7 insertions(+), 2 deletions(-)
---
diff --git a/src/connection-editor/vpn-helpers.c b/src/connection-editor/vpn-helpers.c
index 8da4b4b..4ac9cf4 100644
--- a/src/connection-editor/vpn-helpers.c
+++ b/src/connection-editor/vpn-helpers.c
@@ -72,11 +72,16 @@ vpn_get_plugins ()
                else {
                        if (   !nm_vpn_plugin_info_get_plugin (plugin_info)
                            && nm_vpn_plugin_info_lookup_property (plugin_info, 
NM_VPN_PLUGIN_INFO_KF_GROUP_GNOME, "properties")) {
-                               g_message ("Cannot load legacy-only plugin '%s' (%s)",
+                               g_message ("vpn: (%s,%s) cannot load legacy-only plugin",
                                           nm_vpn_plugin_info_get_name (plugin_info),
                                           nm_vpn_plugin_info_get_filename (plugin_info));
+                       } else if (g_error_matches (error, G_FILE_ERROR, G_FILE_ERROR_NOENT)) {
+                               g_message ("vpn: (%s,%s) file \"%s\" not found. Did you install the client 
package?",
+                                          nm_vpn_plugin_info_get_name (plugin_info),
+                                          nm_vpn_plugin_info_get_filename (plugin_info),
+                                          nm_vpn_plugin_info_get_plugin (plugin_info));
                        } else {
-                               g_warning ("Could not load '%s' plugin %s: %s",
+                               g_warning ("vpn: (%s,%s) could not load plugin: %s",
                                           nm_vpn_plugin_info_get_name (plugin_info),
                                           nm_vpn_plugin_info_get_filename (plugin_info),
                                           error->message);