fix(git): peel les tags annotés vers leur commit cible dans log_graph — #218

crates/infrastructure/src/git/mod.rs

@@ -207,8 +207,9 @@ impl GitPort for Git2Repository {
         let mut ref_map: HashMap<git2::Oid, Vec<String>> = HashMap::new();
         if let Ok(references) = repo.references() {
             for reference in references.flatten() {
-                // Only handle symbolic and direct refs; skip errors.
-                let target_oid = reference.resolve().ok().and_then(|r| r.target());
+                // Only handle refs that resolve to commits; annotated tags point at
+                // tag objects, so `target()` alone would never match revwalk commits.
+                let target_oid = reference_commit_oid(&reference);
                 if let Some(oid) = target_oid {
                     let label = match reference.shorthand() {
                         Some(name) => {
@@ -269,3 +270,16 @@ impl GitPort for Git2Repository {
         ))
     }
 }
+
+fn reference_commit_oid(reference: &git2::Reference<'_>) -> Option<git2::Oid> {
+    reference
+        .peel(git2::ObjectType::Commit)
+        .ok()
+        .map(|object| object.id())
+        .or_else(|| {
+            reference
+                .resolve()
+                .ok()
+                .and_then(|resolved| resolved.target())
+        })
+}