commit 2447376a9e03c1c05e18d3505684688f64120665
from: Stefan Sperling <stsp@stsp.name>
date: Wed Oct 30 15:56:52 2024 UTC

use a default ref-prefix when fetching with git protocol v2

Github's SSH git protocol v2 server returns a useless reference list which
only contains "HEAD" unless we explicitly ask for the "refs/" prefix.

Fixes issue #1389

commit - 8ccaacf7a3bb2401fa09ec42bf513ed344c38e04
commit + 2447376a9e03c1c05e18d3505684688f64120665
blob - a79d7dd7434b10a9409ff691c9007f3e6df37b8b
blob + 5253edbcfff6745b73f46a4bee50db449a385316
--- dulwich/client.py
+++ dulwich/client.py
@@ -832,7 +832,7 @@ class GitClient:
         branch=None,
         progress=None,
         depth=None,
-        ref_prefix=[],
+        ref_prefix=[b"HEAD", b"refs/"],
         filter_spec=None,
         protocol_version: Optional[int] = None,
     ) -> Repo:
@@ -928,7 +928,7 @@ class GitClient:
         ] = None,
         progress: Optional[Callable[[bytes], None]] = None,
         depth: Optional[int] = None,
-        ref_prefix: Optional[List[bytes]] = [],
+        ref_prefix: Optional[List[bytes]] = [b"HEAD", b"refs/"],
         filter_spec: Optional[bytes] = None,
         protocol_version: Optional[int] = None,
     ) -> FetchPackResult:
@@ -1009,7 +1009,7 @@ class GitClient:
         *,
         progress: Optional[Callable[[bytes], None]] = None,
         depth: Optional[int] = None,
-        ref_prefix=[],
+        ref_prefix=[b"HEAD", b"refs/"],
         filter_spec=None,
         protocol_version: Optional[int] = None,
     ):
@@ -1311,7 +1311,7 @@ class TraditionalGitClient(GitClient):
         pack_data,
         progress=None,
         depth=None,
-        ref_prefix=[],
+        ref_prefix=[b"HEAD", b"refs/"],
         filter_spec=None,
         protocol_version: Optional[int] = None,
     ):
@@ -1791,7 +1791,7 @@ class LocalGitClient(GitClient):
         determine_wants=None,
         progress=None,
         depth=None,
-        ref_prefix=[],
+        ref_prefix=[b"HEAD", b"refs/"],
         filter_spec=None,
         **kwargs,
     ):
@@ -1836,7 +1836,7 @@ class LocalGitClient(GitClient):
         pack_data,
         progress=None,
         depth=None,
-        ref_prefix: Optional[List[bytes]] = [],
+        ref_prefix: Optional[List[bytes]] = [b"HEAD", b"refs/"],
         filter_spec: Optional[bytes] = None,
         protocol_version: Optional[int] = None,
     ) -> FetchPackResult:
@@ -2574,7 +2574,7 @@ class AbstractHttpGitClient(GitClient):
         pack_data,
         progress=None,
         depth=None,
-        ref_prefix=[],
+        ref_prefix=[b"HEAD", b"refs/"],
         filter_spec=None,
         protocol_version: Optional[int] = None,
     ):