[gnome-software/1308-gnome-software-cannot-install-epiphany-tech-preview-flatpakref] gs-plugin-loader: Retry uri-to-app with file-to-app for file:// URIs

[Milan Crha <mcrha src gnome org>]

commit 11f8f7a449ec626b168712ac2aeda337779fa9ef
Author: Milan Crha <mcrha redhat com>
Date:   Thu Jul 8 14:41:36 2021 +0200

    gs-plugin-loader: Retry uri-to-app with file-to-app for file:// URIs
    
    When the uri-to-app action returns no result, retry with the file-to-app
    action for the "file://" URIs, in case any of the plugins implement
    only file-to-app actions.
    
    Closes https://gitlab.gnome.org/GNOME/gnome-software/-/issues/1308

 lib/gs-plugin-loader.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
---
diff --git a/lib/gs-plugin-loader.c b/lib/gs-plugin-loader.c
index a824746e5..474aad154 100644
--- a/lib/gs-plugin-loader.c
+++ b/lib/gs-plugin-loader.c
@@ -3309,6 +3309,24 @@ gs_plugin_loader_process_thread_cb (GTask *task,
                        g_task_return_error (task, error);
                        return;
                }
+
+               if (action == GS_PLUGIN_ACTION_URL_TO_APP) {
+                       const gchar *search = gs_plugin_job_get_search (helper->plugin_job);
+                       if (search && g_ascii_strncasecmp (search, "file://", 7) == 0 && (
+                           gs_plugin_job_get_list (helper->plugin_job) == NULL ||
+                           gs_app_list_length (gs_plugin_job_get_list (helper->plugin_job)) == 0)) {
+                               g_autoptr(GError) local_error = NULL;
+                               g_autoptr(GFile) file = NULL;
+                               file = g_file_new_for_uri (search);
+                               gs_plugin_job_set_action (helper->plugin_job, GS_PLUGIN_ACTION_FILE_TO_APP);
+                               gs_plugin_job_set_file (helper->plugin_job, file);
+                               helper->function_name = gs_plugin_action_to_function_name 
(GS_PLUGIN_ACTION_FILE_TO_APP);
+                               if (!gs_plugin_loader_run_results (helper, cancellable, &local_error))
+                                       g_debug ("Failed to convert file:// URI to app using file-to-app 
action: %s", local_error->message);
+                               gs_plugin_job_set_action (helper->plugin_job, GS_PLUGIN_ACTION_URL_TO_APP);
+                               gs_plugin_job_set_file (helper->plugin_job, NULL);
+                       }
+               }
        }
 
        /* run per-app version */