From ea6a24b1c1492283777ad4f7f954b0e37339172d Mon Sep 17 00:00:00 2001
From: Kyle Sexton <153232337+kyle-sexton@users.noreply.github.com>
Date: Sat, 24 Oct 2026 02:34:21 -0400
Subject: [PATCH] test(git-hooks): stop auto maintenance racing the installer
 test's tree snapshots

A fixture commit can spawn a detached `git maintenance --auto` whose
.git/objects/maintenance.lock appears in one tree() read and not the next,
failing "plan returns the remotes: entry and lefthook install, and writes
nothing" (run 40069911482). Every git the test spawns now runs with
maintenance.auto=false and gc.auto=0 through GIT_CONFIG_COUNT.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
---
 lib/git-hooks/install.test.mjs | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)

diff --git a/lib/git-hooks/install.test.mjs b/lib/git-hooks/install.test.mjs
index 3b80f722f8f..acfd336a04c 100644
--- a/lib/git-hooks/install.test.mjs
+++ b/lib/git-hooks/install.test.mjs
@@ -34,13 +34,22 @@ after(() => rmSync(work, { recursive: true, force: true }));
 const has = (tool) => spawnSync("sh", ["-c", `command -v ${tool}`]).status === 0;
 const posixHost = process.platform !== "win32";
 
-// Git sees no global or system config, so a host core.hooksPath cannot leak in.
-const baseEnv = { ...process.env, GIT_CONFIG_GLOBAL: path.join(work, "no-global"), GIT_CONFIG_NOSYSTEM: "1" };
+// Git sees no global or system config, so a host core.hooksPath cannot leak in,
+// and runs no detached auto maintenance, whose lock file would change a tree() snapshot.
+const gitEnv = {
+  GIT_CONFIG_GLOBAL: path.join(work, "no-global"),
+  GIT_CONFIG_NOSYSTEM: "1",
+  GIT_CONFIG_COUNT: "2",
+  GIT_CONFIG_KEY_0: "maintenance.auto",
+  GIT_CONFIG_VALUE_0: "false",
+  GIT_CONFIG_KEY_1: "gc.auto",
+  GIT_CONFIG_VALUE_1: "0",
+};
+const baseEnv = { ...process.env, ...gitEnv };
 for (const k of ["GIT_DIR", "GIT_WORK_TREE", "GIT_INDEX_FILE", "CLAUDECODE", "AI_AGENT", "HUSKY", "CLAUDE_PLUGIN_DATA"]) {
   delete baseEnv[k];
 }
-process.env.GIT_CONFIG_GLOBAL = baseEnv.GIT_CONFIG_GLOBAL;
-process.env.GIT_CONFIG_NOSYSTEM = "1";
+Object.assign(process.env, gitEnv);
 
 let counter = 0;
 function git(repo, args, env = {}) {