function injection overhaul Add an inject function, that can be used by plugins that want to replace one of ikiwiki's functions with their own version. (This is a scary thing that grubs through the symbol table, and replaces all exported occurances of a function with the injected version.) external: RPC functions can be injected to replace exported functions. Removed the stupid displaytime hook, and use injection instead.
Allow individual hook registration to override ID The preprocessor hooks need to specify IDs different from the ID used to initialise the proxy. Thus, the hook function now takes an optional id keyword argument and uses the ID used during initialisation if none is provided. Signed-off-by: martin f. krafft <madduck@madduck.net>
Refactor remote procedure calls in the proxy Add an rpc() method to the proxy to allow users to call remote procedures, and route the proxy's own import registration via this function. Also, implement convenience functions for the RPC calls exported in the IkiWiki::XML::RPC namespace. Signed-off-by: martin f. krafft <madduck@madduck.net>
Allow external plugins to return no value Instead of using the XML-RPC v2 extension <nil/>, which Perl's XML::RPC::Parser does not (yet) support (Joey's patch is pending), we agreed on a sentinel: {'null':''}, that is, a hash with a single key "null" pointing to the empty string. The Python proxy automatically converts None appropriately and raises an exception if a hook function should, by weird coincidence, attempt to return {'null':''}. Signed-off-by: martin f. krafft <madduck@madduck.net>