0.29.7

src/cache/model/entry.rs

@@ -188,6 +188,9 @@ impl Settings {
                 value.parse::<HeaderValue>().expect("validated cache Via header"),
             );
         }
+        if self.expose_only_hits && outcome != "HIT" {
+            return;
+        }
         if self.expose_status {
             headers.insert("x-cache", HeaderValue::from_static(outcome));
         }
@@ -222,7 +225,10 @@ impl Settings {
         }
     }
     pub fn annotate_transformed(&self, headers: &mut HeaderMap, transformed: bool) {
-        if !self.enabled || !self.expose_cache_status || !transformed {
+        if !self.enabled || !self.expose_cache_status || !transformed
+            || (self.expose_only_hits && !headers.get("cache-status")
+                .and_then(|value| value.to_str().ok())
+                .is_some_and(|value| value.starts_with("RustProxy; hit"))) {
             return;
         }
         let base = headers
@@ -249,7 +255,7 @@ impl Settings {
         reason: &'static str,
     ) {
         self.annotate(headers, outcome, hits, ttl);
-        if !self.enabled {
+        if !self.enabled || (self.expose_only_hits && outcome != "HIT") {
             return;
         }
         if self.expose_status {
@@ -333,6 +339,7 @@ pub struct Overrides {
     pub expose_hits: Option<bool>,
     pub expose_cache_status: Option<bool>,
     pub expose_resident_age: Option<bool>,
+    pub expose_only_hits: Option<bool>,
     /// Deliberately unavailable in the global cache configuration.
     pub unsafe_force: UnsafeForce,
 }
@@ -380,6 +387,9 @@ impl Overrides {
         if let Some(value) = self.expose_resident_age {
             result.expose_resident_age = value;
         }
+        if let Some(value) = self.expose_only_hits {
+            result.expose_only_hits = value;
+        }
         result.validate()?;
         Ok(result)
     }