[gnome-software/wip/kalev/hide-from-search-quirk] Add HIDE_FROM_SEARCH quirk

[Kalev Lember <klember src gnome org>]

commit d8ebbe420d5d0642987c6c6b799f108c7b4ce709
Author: Kalev Lember <klember redhat com>
Date:   Fri Apr 19 07:17:00 2019 +0200

    Add HIDE_FROM_SEARCH quirk
    
    This allows plugins to control if apps are discoverable or not.
    
    Discoverable here means that they get hidden from search results and
    category views, unless they are already installed. This makes it
    possible to launch and remove and update already installed apps, but
    hides them otherwise.
    
    This is going to be used in the rpm-ostree plugin to hide package-based
    desktop apps on Fedora Silverblue and only show flatpak apps by default.

 lib/gs-app.c           | 2 ++
 lib/gs-app.h           | 2 ++
 lib/gs-plugin-loader.c | 8 ++++++++
 3 files changed, 12 insertions(+)
---
diff --git a/lib/gs-app.c b/lib/gs-app.c
index d5a30927..186ceb54 100644
--- a/lib/gs-app.c
+++ b/lib/gs-app.c
@@ -243,6 +243,8 @@ _as_app_quirk_flag_to_string (GsAppQuirk quirk)
                return "new-permissions";
        if (quirk == GS_APP_QUIRK_PARENTAL_NOT_LAUNCHABLE)
                return "parental-not-launchable";
+       if (quirk == GS_APP_QUIRK_HIDE_FROM_SEARCH)
+               return "hide-from-search";
        return NULL;
 }
 
diff --git a/lib/gs-app.h b/lib/gs-app.h
index f6421f0b..cd185154 100644
--- a/lib/gs-app.h
+++ b/lib/gs-app.h
@@ -85,6 +85,7 @@ typedef enum {
  * @GS_APP_QUIRK_PARENTAL_FILTER:      The app has been filtered by parental controls, and should be hidden
  * @GS_APP_QUIRK_NEW_PERMISSIONS:      The update requires new permissions
  * @GS_APP_QUIRK_PARENTAL_NOT_LAUNCHABLE:      The app cannot be run by the current user due to parental 
controls, and should not be launchable
+ * @GS_APP_QUIRK_HIDE_FROM_SEARCH:     The app should not be shown in search results
  *
  * The application attributes.
  **/
@@ -105,6 +106,7 @@ typedef enum {
        GS_APP_QUIRK_PARENTAL_FILTER    = 1 << 12,      /* Since: 3.32 */
        GS_APP_QUIRK_NEW_PERMISSIONS    = 1 << 13,      /* Since: 3.32 */
        GS_APP_QUIRK_PARENTAL_NOT_LAUNCHABLE    = 1 << 14,      /* Since: 3.32 */
+       GS_APP_QUIRK_HIDE_FROM_SEARCH   = 1 << 15,      /* Since: 3.32 */
        /*< private >*/
        GS_APP_QUIRK_LAST
 } GsAppQuirk;
diff --git a/lib/gs-plugin-loader.c b/lib/gs-plugin-loader.c
index ca0504a3..aa775e9e 100644
--- a/lib/gs-plugin-loader.c
+++ b/lib/gs-plugin-loader.c
@@ -1226,6 +1226,14 @@ gs_plugin_loader_app_is_valid (GsApp *app, gpointer user_data)
                return FALSE;
        }
 
+       /* don't show apps with hide-from-search quirk, unless they are already installed */
+       if (!gs_app_is_installed (app) &&
+           gs_app_has_quirk (app, GS_APP_QUIRK_HIDE_FROM_SEARCH)) {
+               g_debug ("app invalid as hide-from-search quirk set %s",
+                        gs_plugin_loader_get_app_str (app));
+               return FALSE;
+       }
+
        /* don't show sources */
        if (gs_app_get_kind (app) == AS_APP_KIND_SOURCE) {
                g_debug ("app invalid as source %s",