this is my first post in discourse.
I am patching the caja-xattr-tags extension. Basically the problem was that some protocols ( mpt:// in my case) don’t support xattr, but this extension still does query calling
g_file_query_info and thus performing very bad.
So I am asking a generic way to detect if a protocol support xattr to avoid useless call to
g_file_query_info( "xattr::..." )
when we know in advance that there will be not a valid result.
For now, the best way that I was able to found is to use a static blacklist.