From ad002663a657328eccc58fafa057e594b64d1f84 Mon Sep 17 00:00:00 2001
From: Melorise <0d00@0721.hk>
Date: Thu, 27 Aug 2026 11:16:27 +0800
Subject: [PATCH] fix: only clone target branch

---
 .github/workflows/mirror-nixpkgs.yml | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/.github/workflows/mirror-nixpkgs.yml b/.github/workflows/mirror-nixpkgs.yml
index e7de73d78..0a2c3c231 100644
--- a/.github/workflows/mirror-nixpkgs.yml
+++ b/.github/workflows/mirror-nixpkgs.yml
@@ -20,7 +20,10 @@ jobs:
           set -euo pipefail
           : "${NIX_BRANCH_TOKEN:?Set the NIX_BRANCH_TOKEN repository secret.}"
 
-          git clone --bare "https://github.com/NixOS/nixpkgs.git" nixpkgs.git
+          git clone --bare --single-branch --branch nixos-26.05 \
+            "https://github.com/NixOS/nixpkgs.git" nixpkgs.git
+          git -C nixpkgs.git fetch origin \
+            "refs/heads/nixos-unstable:refs/heads/nixos-unstable"
           git -C nixpkgs.git remote add target \
             "https://x-access-token:${NIX_BRANCH_TOKEN}@github.com/${TARGET_REPOSITORY}.git"