[gnome-software] Add a way to force certain features

[Matthias Clasen <matthiasc src gnome org>]

commit 1c240d872ffe7626c3a85f1a07d50d66f913a644
Author: Matthias Clasen <mclasen redhat com>
Date:   Mon Sep 9 20:54:59 2013 -0400

    Add a way to force certain features
    
    This is handy for debugging the rendering of featured tiles.
    To enable this, compile with CFLAGS=-DDEBUG, and then set
    the GNOME_SOFTWARE_FEATURED environment variable to the id
    of the app you want to see featured.

 src/plugins/gs-plugin-hardcoded-featured.c |   24 +++++++++++++++---------
 1 files changed, 15 insertions(+), 9 deletions(-)
---
diff --git a/src/plugins/gs-plugin-hardcoded-featured.c b/src/plugins/gs-plugin-hardcoded-featured.c
index 8d0bce9..3410855 100644
--- a/src/plugins/gs-plugin-hardcoded-featured.c
+++ b/src/plugins/gs-plugin-hardcoded-featured.c
@@ -77,15 +77,21 @@ gs_plugin_add_featured (GsPlugin *plugin,
         apps = g_key_file_get_groups (kf, &n_apps)
 ;
 
-        /* In lieu of a random number generator, just
-         * rotate the featured apps, giving each app
-         * 3 days apiece.
-         */
-        date = g_date_time_new_now_utc ();
-        i = g_date_time_get_day_of_year (date);
-        g_date_time_unref (date);
-        i = (i % (n_apps * 3)) / 3;
-        group = apps[i];
+#ifdef DEBUG
+        group = g_getenv ("GNOME_SOFTWARE_FEATURED");
+        if (!group ||!g_list_find_custom (apps, group, g_str_equal))
+#endif
+        {
+                /* In lieu of a random number generator, just
+                 * rotate the featured apps, giving each app
+                 * 3 days apiece.
+                 */
+                date = g_date_time_new_now_utc ();
+                i = g_date_time_get_day_of_year (date);
+                g_date_time_unref (date);
+                i = (i % (n_apps * 3)) / 3;
+                group = apps[i];
+        }
 
         s = g_key_file_get_string (kf, group, "image", NULL);
        path = g_build_filename (DATADIR, "gnome-software", s, NULL);