feat: add tracing support to describt().

Author: Byron

Cargo.lock

@@ -22,6 +22,7 @@ gix-object = { version = "^0.34.0", path = "../gix-object" }
 gix-date = { version = "^0.7.2", path = "../gix-date" }
 gix-hashtable = { version = "^0.2.4", path = "../gix-hashtable" }
 gix-revwalk = { version = "^0.5.0", path = "../gix-revwalk" }
+gix-trace = { version = "^0.1.3", path = "../gix-trace" }
 
 bstr = { version = "1.3.0", default-features = false, features = ["std"]}
 thiserror = "1.0.26"

gix-revision/Cargo.toml

@@ -168,6 +168,13 @@ pub(crate) mod function {
             first_parent,
         }: Options<'name>,
     ) -> Result<Option<Outcome<'name>>, Error> {
+        let _span = gix_trace::coarse!(
+            "gix_revision::describe()",
+            commit = %commit,
+            name_count = name_by_oid.len(),
+            max_candidates,
+            first_parent
+        );
         max_candidates = max_candidates.min(MAX_CANDIDATES);
         if let Some(name) = name_by_oid.get(commit) {
             return Ok(Some(Outcome {