Migrate to latest age-plugin crate commit

src/main.rs

@@ -327,11 +327,7 @@ fn main() -> Result<(), Error> {
     }
 
     if let Some(state_machine) = opts.age_plugin {
-        run_state_machine(
-            &state_machine,
-            Some(plugin::RecipientPlugin::default),
-            Some(plugin::IdentityPlugin::default),
-        )?;
+        run_state_machine(&state_machine, plugin::Handler)?;
         Ok(())
     } else if opts.version {
         println!("age-plugin-yubikey {}", env!("CARGO_PKG_VERSION"));

src/plugin.rs

@@ -2,13 +2,28 @@ use age_core::format::{FileKey, Stanza};
 use age_plugin::{
     identity::{self, IdentityPluginV1},
     recipient::{self, RecipientPluginV1},
-    Callbacks,
+    Callbacks, PluginHandler,
 };
-use std::collections::HashMap;
+use std::collections::{HashMap, HashSet};
 use std::io;
 
 use crate::{fl, format, key, p256::Recipient, PLUGIN_NAME};
 
+pub(crate) struct Handler;
+
+impl PluginHandler for Handler {
+    type RecipientV1 = RecipientPlugin;
+    type IdentityV1 = IdentityPlugin;
+
+    fn recipient_v1(self) -> io::Result<Self::RecipientV1> {
+        Ok(RecipientPlugin::default())
+    }
+
+    fn identity_v1(self) -> io::Result<Self::IdentityV1> {
+        Ok(IdentityPlugin::default())
+    }
+}
+
 #[derive(Debug, Default)]
 pub(crate) struct RecipientPlugin {
     recipients: Vec<Recipient>,
@@ -58,6 +73,10 @@ impl RecipientPluginV1 for RecipientPlugin {
         }
     }
 
+    fn labels(&mut self) -> HashSet<String> {
+        HashSet::new()
+    }
+
     fn wrap_file_keys(
         &mut self,
         file_keys: Vec<FileKey>,