[gnome-software] Guess the application ID when installing local files

[Richard Hughes <rhughes src gnome org>]

commit 2ea33c21e15a7f1f6664eac87c766ff82fa7edea
Author: Richard Hughes <richard hughsie com>
Date:   Mon Sep 28 11:12:47 2015 +0100

    Guess the application ID when installing local files
    
    This lets us show the screenshots and long descriptions when installing local
    files, and also allows us to handle 'launching' the application when it is
    installed.

 src/plugins/gs-plugin-packagekit-refresh.c |   61 ++++++++++++++++++++++++++++
 1 files changed, 61 insertions(+), 0 deletions(-)
---
diff --git a/src/plugins/gs-plugin-packagekit-refresh.c b/src/plugins/gs-plugin-packagekit-refresh.c
index ba90a9d..b3c7e9b 100644
--- a/src/plugins/gs-plugin-packagekit-refresh.c
+++ b/src/plugins/gs-plugin-packagekit-refresh.c
@@ -224,6 +224,58 @@ gs_plugin_packagekit_refresh_content_type_matches (const gchar *filename,
 }
 
 /**
+ * gs_plugin_packagekit_refresh_guess_app_id:
+ */
+static gboolean
+gs_plugin_packagekit_refresh_guess_app_id (GsPlugin *plugin,
+                                          GsApp *app,
+                                          const gchar *filename,
+                                          GCancellable *cancellable,
+                                          GError **error)
+{
+       PkFiles *item;
+       guint i;
+       guint j;
+       gchar **fns;
+       g_auto(GStrv) files = NULL;
+       g_autoptr(PkResults) results = NULL;
+       g_autoptr(GPtrArray) array = NULL;
+
+       /* get file list so we can work out ID */
+       files = g_strsplit (filename, "\t", -1);
+       results = pk_client_get_files_local (PK_CLIENT (plugin->priv->task),
+                                            files,
+                                            cancellable,
+                                            gs_plugin_packagekit_progress_cb, plugin,
+                                            error);
+       if (results == NULL)
+               return FALSE;
+       array = pk_results_get_files_array (results);
+       if (array->len == 0) {
+               g_set_error (error,
+                            GS_PLUGIN_ERROR,
+                            GS_PLUGIN_ERROR_FAILED,
+                            "no files for %s", filename);
+               return FALSE;
+       }
+
+       /* find the first desktop file */
+       for (i = 0; i < array->len; i++) {
+               item = g_ptr_array_index (array, i);
+               fns = pk_files_get_files (item);
+               for (j = 0; fns[j] != NULL; j++) {
+                       if (g_str_has_suffix (fns[j], ".desktop")) {
+                               g_autofree gchar *basename;
+                               basename = g_path_get_basename (fns[j]);
+                               gs_app_set_id (app, basename);
+                               break;
+                       }
+               }
+       }
+       return TRUE;
+}
+
+/**
  * gs_plugin_filename_to_app:
  */
 gboolean
@@ -305,6 +357,15 @@ gs_plugin_filename_to_app (GsPlugin *plugin,
        gs_app_set_url (app, AS_URL_KIND_HOMEPAGE, pk_details_get_url (item));
        gs_app_set_size (app, pk_details_get_size (item));
        gs_app_set_licence (app, pk_details_get_license (item));
+
+       /* look for a desktop file so we can use a valid application id */
+       if (!gs_plugin_packagekit_refresh_guess_app_id (plugin,
+                                                       app,
+                                                       filename,
+                                                       cancellable,
+                                                       error))
+               return FALSE;
+
        gs_plugin_add_app (list, app);
        return TRUE;
 }