/**
* as_pool_init:
**/
static void
as_pool_init (AsPool *pool)
{
guint i;
g_autoptr(AsDistroDetails) distro = NULL;
AsPoolPrivate *priv = GET_PRIVATE (pool);
/* set active locale */
priv->locale = as_get_current_locale ();
priv->cpt_table = g_hash_table_new_full (g_str_hash,
g_str_equal,
g_free,
(GDestroyNotify) g_object_unref);
priv->xml_dirs = g_ptr_array_new_with_free_func (g_free);
priv->yaml_dirs = g_ptr_array_new_with_free_func (g_free);
priv->icon_dirs = g_ptr_array_new_with_free_func (g_free);
/* set the current architecture */
priv->current_arch = as_get_current_arch ();
/* set up our localized search-term greylist */
priv->term_greylist = g_strsplit (AS_SEARCH_GREYLIST_STR, ";", -1);
/* system-wide cache locations */
priv->sys_cache_path = g_strdup (AS_APPSTREAM_CACHE_PATH);
/* users umask shouldn't interfere with us creating new files when we are root */
if (as_utils_is_root ())
as_reset_umask ();
/* check the ctime of the cache directory, if it exists at all */
as_pool_check_cache_ctime (pool);
distro = as_distro_details_new ();
priv->screenshot_service_url = as_distro_details_get_str (distro, "ScreenshotUrl");
/* set watched default directories for AppStream metadata */
for (i = 0; AS_APPSTREAM_METADATA_PATHS[i] != NULL; i++)
as_pool_add_metadata_location_internal (pool, AS_APPSTREAM_METADATA_PATHS[i], FALSE);
/* set default pool flags */
priv->flags = AS_POOL_FLAG_READ_COLLECTION |
AS_POOL_FLAG_READ_METAINFO |
AS_POOL_FLAG_READ_DESKTOP_FILES;
/* set default cache flags */
priv->cache_flags = AS_CACHE_FLAG_USE_SYSTEM | AS_CACHE_FLAG_USE_USER;
}
/**
* as_pool_refresh_cache:
* @pool: An instance of #AsPool.
* @force: Enforce refresh, even if source data has not changed.
*
* Update the AppStream cache. There is normally no need to call this function manually, because cache updates are handled
* transparently in the background.
*
* Returns: %TRUE if the cache was updated, %FALSE on error or if the cache update was not necessary and has been skipped.
*/
gboolean
as_pool_refresh_cache (AsPool *pool, gboolean force, GError **error)
{
AsPoolPrivate *priv = GET_PRIVATE (pool);
gboolean ret = FALSE;
gboolean ret_poolupdate;
g_autofree gchar *cache_fname = NULL;
g_autoptr(GError) tmp_error = NULL;
/* try to create cache directory, in case it doesn't exist */
g_mkdir_with_parents (priv->sys_cache_path, 0755);
if (!as_utils_is_writable (priv->sys_cache_path)) {
g_set_error (error,
AS_POOL_ERROR,
AS_POOL_ERROR_TARGET_NOT_WRITABLE,
_("Cache location '%s' is not writable."), priv->sys_cache_path);
return FALSE;
}
/* collect metadata */
#ifdef HAVE_APT_SUPPORT
/* currently, we only do something here if we are running with explicit APT support compiled in */
as_pool_scan_apt (pool, force, &tmp_error);
if (tmp_error != NULL) {
/* the exact error is not forwarded here, since we might be able to partially update the cache */
g_warning ("Error while collecting metadata: %s", tmp_error->message);
g_error_free (tmp_error);
tmp_error = NULL;
}
#endif
/* create the filename of our cache */
cache_fname = g_strdup_printf ("%s/%s.gvz", priv->sys_cache_path, priv->locale);
/* check if we need to refresh the cache
* (which is only necessary if the AppStream data has changed) */
if (!as_pool_metadata_changed (pool)) {
g_debug ("Data did not change, no cache refresh needed.");
if (force) {
g_debug ("Forcing refresh anyway.");
} else {
return FALSE;
}
}
g_debug ("Refreshing AppStream cache");
/* find them wherever they are */
ret_poolupdate = as_pool_load (pool, NULL, &tmp_error);
if (tmp_error != NULL) {
/* the exact error is not forwarded here, since we might be able to partially update the cache */
g_warning ("Error while updating the in-memory data pool: %s", tmp_error->message);
g_error_free (tmp_error);
tmp_error = NULL;
}
/* save the cache object */
as_pool_save_cache_file (pool, cache_fname, &tmp_error);
if (tmp_error != NULL) {
/* the exact error is not forwarded here, since we might be able to partially update the cache */
g_warning ("Error while updating the cache: %s", tmp_error->message);
g_error_free (tmp_error);
tmp_error = NULL;
ret = FALSE;
} else {
ret = TRUE;
}
if (ret) {
if (!ret_poolupdate) {
g_set_error (error,
AS_POOL_ERROR,
AS_POOL_ERROR_INCOMPLETE,
_("AppStream data pool was loaded, but some metadata was ignored due to errors."));
}
/* update the cache mtime, to not needlessly rebuild it again */
as_touch_location (cache_fname);
as_pool_check_cache_ctime (pool);
} else {
g_set_error (error,
AS_POOL_ERROR,
AS_POOL_ERROR_FAILED,
_("AppStream cache update failed."));
}
return TRUE;
}
