/**
* Returns the update source set for an app, or the first applicable one.
*
* @param app The target application.
* @return An update source that can be used for this application, or null if no source could be
* found.
*/
public static UpdateSource get_source(InstalledApp app) {
if (get_update_sources() == null) {
return null;
}
// Return the stored update source first, if available.
if (app.get_update_source() != null) {
UpdateSource s = get_source(app.get_update_source());
if (s != null) { // False if the source has been removed from assets.json
return s;
}
}
// Find the first applicable source.
for (UpdateSource s : get_update_sources()) {
if (s.is_applicable(app)) {
return s;
}
}
return null;
}
