reproduce #1598

Author: Byron

gix-protocol/src/handshake/refs/shared.rs

@@ -1,6 +1,5 @@
-use bstr::{BStr, BString, ByteSlice};
-
 use crate::handshake::{refs::parse::Error, Ref};
+use bstr::{BStr, BString, ByteSlice};
 
 impl From<InternalRef> for Ref {
     fn from(v: InternalRef) -> Self {
@@ -160,7 +159,13 @@ pub(in crate::handshake::refs) fn parse_v1(
             });
         }
         None => {
-            let object = gix_hash::ObjectId::from_hex(hex_hash.as_bytes())?;
+            match gix_hash::ObjectId::from_hex(hex_hash.as_bytes()) {
+                Ok(id) => id,
+                Err(_) if hex_hash.as_bstr() == "shallow" => {
+                    todo!("shallow");
+                }
+                Err(err) => return Err(err.into()),
+            };
             match out_refs
                 .iter()
                 .take(num_initial_out_refs)

gix-protocol/src/handshake/refs/tests.rs

@@ -118,6 +118,57 @@ dce0ea858eef7ff61ad345cc5cdac62203fb3c10 refs/tags/gix-commitgraph-v0.0.0
     );
 }
 
+#[maybe_async::test(feature = "blocking-client", async(feature = "async-client", async_std::test))]
+async fn extract_references_from_v1_refs_with_shallow() {
+    let input = &mut Fixture(
+        "73a6868963993a3328e7d8fe94e5a6ac5078a944 HEAD
+21c9b7500cb144b3169a6537961ec2b9e865be81 MISSING_NAMESPACE_TARGET
+73a6868963993a3328e7d8fe94e5a6ac5078a944 refs/heads/main
+8e472f9ccc7d745927426cbb2d9d077de545aa4e refs/pull/13/head
+dce0ea858eef7ff61ad345cc5cdac62203fb3c10 refs/tags/gix-commitgraph-v0.0.0
+21c9b7500cb144b3169a6537961ec2b9e865be81 refs/tags/gix-commitgraph-v0.0.0^{}
+shallow 21c9b7500cb144b3169a6537961ec2b9e865be81"
+            .as_bytes(),
+    );
+    let out = refs::from_v1_refs_received_as_part_of_handshake_and_capabilities(
+        input,
+        Capabilities::from_bytes(b"\0symref=HEAD:refs/heads/main symref=MISSING_NAMESPACE_TARGET:(null)")
+            .expect("valid capabilities")
+            .0
+            .iter(),
+    )
+    .await
+    .expect("no failure from valid input");
+    assert_eq!(
+        out,
+        vec![
+            Ref::Symbolic {
+                full_ref_name: "HEAD".into(),
+                target: "refs/heads/main".into(),
+                tag: None,
+                object: oid("73a6868963993a3328e7d8fe94e5a6ac5078a944")
+            },
+            Ref::Direct {
+                full_ref_name: "MISSING_NAMESPACE_TARGET".into(),
+                object: oid("21c9b7500cb144b3169a6537961ec2b9e865be81")
+            },
+            Ref::Direct {
+                full_ref_name: "refs/heads/main".into(),
+                object: oid("73a6868963993a3328e7d8fe94e5a6ac5078a944")
+            },
+            Ref::Direct {
+                full_ref_name: "refs/pull/13/head".into(),
+                object: oid("8e472f9ccc7d745927426cbb2d9d077de545aa4e")
+            },
+            Ref::Peeled {
+                full_ref_name: "refs/tags/gix-commitgraph-v0.0.0".into(),
+                tag: oid("dce0ea858eef7ff61ad345cc5cdac62203fb3c10"),
+                object: oid("21c9b7500cb144b3169a6537961ec2b9e865be81")
+            },
+        ]
+    );
+}
+
 #[test]
 fn extract_symbolic_references_from_capabilities() -> Result<(), client::Error> {
     let caps = client::Capabilities::from_bytes(