[gnome-initial-setup: 1/2] goa: Support setting providers from the vendor conf

[Will Thompson <wjt src gnome org>]

commit ca94783907ad0e3918c8c44b16a96559911aa187
Author: Adrien Plazas <kekun plazas laposte net>
Date:   Tue Oct 15 16:31:28 2019 +0200

    goa: Support setting providers from the vendor conf
    
    This allows vendors to list the GOA providers they want to offer to
    their users by listing them in the vendor conf, under the providers key
    in the goa group.

 gnome-initial-setup/pages/goa/gis-goa-page.c | 24 ++++++++++++++++++++----
 1 file changed, 20 insertions(+), 4 deletions(-)
---
diff --git a/gnome-initial-setup/pages/goa/gis-goa-page.c b/gnome-initial-setup/pages/goa/gis-goa-page.c
index deb663c..87341c4 100644
--- a/gnome-initial-setup/pages/goa/gis-goa-page.c
+++ b/gnome-initial-setup/pages/goa/gis-goa-page.c
@@ -37,6 +37,9 @@
 
 #include "gis-page-header.h"
 
+#define VENDOR_GOA_GROUP "goa"
+#define VENDOR_PROVIDERS_KEY "providers"
+
 struct _GisGoaPagePrivate {
   GtkWidget *accounts_list;
 
@@ -180,10 +183,23 @@ add_provider_to_list (GisGoaPage *page, const char *provider_type)
 static void
 populate_provider_list (GisGoaPage *page)
 {
-  add_provider_to_list (page, "google");
-  add_provider_to_list (page, "owncloud");
-  add_provider_to_list (page, "windows_live");
-  add_provider_to_list (page, "facebook");
+  g_auto(GStrv) conf_providers =
+    gis_driver_conf_get_string_list (GIS_PAGE (page)->driver, VENDOR_GOA_GROUP, VENDOR_PROVIDERS_KEY, NULL);
+  GStrv providers = conf_providers ? conf_providers :
+    (gchar *[]) { "google", "owncloud", "windows_live", "facebook", NULL };
+
+  /* This code will read the keyfile containing vendor customization options and
+   * look for options under the "goa" group, and supports the following keys:
+   *   - providers (optional): list of online account providers to offer
+   *
+   * This is how this file might look on a vendor image:
+   *
+   *   [goa]
+   *   providers=owncloud;imap_smtp
+   */
+
+  for (guint i = 0; providers[i]; i++)
+    add_provider_to_list (page, providers[i]);
 }
 
 static void