[gnome-software/1296-calculate-app-space-usage-for-download-context-tile: 2/3] snap: Calculate cache and user data sizes for installed applications




commit 2d2d9a6366aaa24660b4ac6c3d8e7cc7c67c7a99
Author: Milan Crha <mcrha redhat com>
Date:   Thu Jul 29 11:17:22 2021 +0200

    snap: Calculate cache and user data sizes for installed applications
    
    It can be done, because the directories for the user data and the cache data
    are known.
    
    Related to https://gitlab.gnome.org/GNOME/gnome-software/-/issues/1296

 plugins/snap/gs-plugin-snap.c | 39 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)
---
diff --git a/plugins/snap/gs-plugin-snap.c b/plugins/snap/gs-plugin-snap.c
index d500cd41d..2e21e6ba4 100644
--- a/plugins/snap/gs-plugin-snap.c
+++ b/plugins/snap/gs-plugin-snap.c
@@ -902,6 +902,31 @@ refine_screenshots (GsApp *app, SnapdSnap *snap)
        }
 }
 
+static gboolean
+gs_snap_file_size_include_cb (const gchar *filename,
+                             GFileTest file_kind,
+                             gpointer user_data)
+{
+       return file_kind != G_FILE_TEST_IS_SYMLINK &&
+              g_strcmp0 (filename, "common") != 0 &&
+              g_strcmp0 (filename, "current") != 0;
+}
+
+static guint64
+gs_snap_get_app_directory_size (const gchar *snap_name,
+                               gboolean is_cache_size,
+                               GCancellable *cancellable)
+{
+       g_autofree gchar *filename = NULL;
+
+       if (is_cache_size)
+               filename = g_build_filename (g_get_home_dir (), "snap", snap_name, "common", NULL);
+       else
+               filename = g_build_filename (g_get_home_dir (), "snap", snap_name, NULL);
+
+       return gs_utils_get_file_size (filename, is_cache_size ? NULL : gs_snap_file_size_include_cb, NULL, 
cancellable);
+}
+
 static gboolean
 refine_app_with_client (GsPlugin             *plugin,
                        SnapdClient          *client,
@@ -1064,6 +1089,20 @@ refine_app_with_client (GsPlugin             *plugin,
        if (flags & GS_PLUGIN_REFINE_FLAGS_REQUIRE_ICON)
                load_icon (plugin, client, app, snap_name, local_snap, store_snap, cancellable);
 
+       if ((flags & GS_PLUGIN_REFINE_FLAGS_REQUIRE_SIZE_DATA) != 0 &&
+           gs_app_is_installed (app) &&
+           gs_app_get_kind (app) != AS_COMPONENT_KIND_RUNTIME) {
+               if (gs_app_get_size_cache_data (app) == GS_APP_SIZE_UNKNOWABLE)
+                       gs_app_set_size_cache_data (app, gs_snap_get_app_directory_size (snap_name, TRUE, 
cancellable));
+               if (gs_app_get_size_user_data (app) == GS_APP_SIZE_UNKNOWABLE)
+                       gs_app_set_size_user_data (app, gs_snap_get_app_directory_size (snap_name, FALSE, 
cancellable));
+
+               if (g_cancellable_is_cancelled (cancellable)) {
+                       gs_app_set_size_cache_data (app, GS_APP_SIZE_UNKNOWABLE);
+                       gs_app_set_size_user_data (app, GS_APP_SIZE_UNKNOWABLE);
+               }
+       }
+
        return TRUE;
 }
 


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