Make signing functions generic over the signer trait

crates/signed_state/src/push.rs

@@ -4,7 +4,6 @@ use anyhow::Error;
 use nostr::prelude::Url;
 use nostr_sdk::prelude::*;
 use signed_core::RepoState;
-use signed_nostr::UniversalSigner;
 
 /// `ws://` grasp servers, like ngit, use `http(s)://<host>`.
 pub(crate) fn grasp_base_url(relay: &RelayUrl) -> Option<String> {
@@ -130,9 +129,9 @@ impl PushOutcome {
 }
 
 #[allow(clippy::too_many_arguments)]
-pub(crate) async fn push_staged_to_grasps(
+pub(crate) async fn push_staged_to_grasps<S>(
     client: &Client,
-    signer: &UniversalSigner,
+    signer: &S,
     repo_id: &str,
     refs: &[(String, String)],
     head: Option<&str>,
@@ -140,7 +139,10 @@ pub(crate) async fn push_staged_to_grasps(
     owner: &str,
     servers: &[RelayUrl],
     push: impl Fn(&Path, &str, &str, &str) -> Result<(), Error>,
-) -> PushOutcome {
+) -> PushOutcome
+where
+    S: AsyncGetPublicKey + AsyncSignEvent + ?Sized,
+{
     let mut outcome = PushOutcome::default();
 
     for relay in servers {