fix: harden reproducible checkout races

scripts/install-hooks.mjs

@@ -72,28 +72,6 @@ export async function installHooks({
   activateHooks = async () => {
     await run('git', ['config', 'core.hooksPath', '.husky/_'], { cwd: root, stdio: 'inherit' });
   },
-  readHooksPath = async () => {
-    try {
-      const { stdout } = await execFileAsync('git', ['config', '--get', 'core.hooksPath'], {
-        cwd: root,
-      });
-      return stdout.trim() || null;
-    } catch (error) {
-      if (error.code === 1) return null;
-      throw error;
-    }
-  },
-  restoreHooksPath = async (previous) => {
-    if (previous === null) {
-      try {
-        await execFileAsync('git', ['config', '--unset', 'core.hooksPath'], { cwd: root });
-      } catch (error) {
-        if (error.code !== 5) throw error;
-      }
-    } else {
-      await execFileAsync('git', ['config', 'core.hooksPath', previous], { cwd: root });
-    }
-  },
 } = {}) {
   if (disabled) return;
 
@@ -103,8 +81,6 @@ export async function installHooks({
   const stagingRepo = path.join(root, '.mosaic-test-work', `husky-stage-${nonce}`);
   const stagingHooks = path.join(stagingRepo, '.husky');
   const quarantined = path.join(quarantineRoot, `${path.basename(root)}-${nonce}`);
-
-  const previousHooksPath = await readHooksPath();
   await mkdir(huskyDir, { recursive: true });
   await mkdir(quarantineRoot, { recursive: true });
 
@@ -142,13 +118,6 @@ export async function installHooks({
     }
   } catch (error) {
     const cleanupFailures = [];
-    try {
-      if ((await pathExists(active)) && !previousComplete) {
-        await rename(active, `${quarantined}-failed`);
-      }
-    } catch (cleanupError) {
-      cleanupFailures.push(`active hooks: ${cleanupError.message}`);
-    }
     try {
       if (await pathExists(stagingRepo)) {
         await rename(stagingRepo, `${quarantined}-staging`);
@@ -156,11 +125,6 @@ export async function installHooks({
     } catch (cleanupError) {
       cleanupFailures.push(`staging hooks: ${cleanupError.message}`);
     }
-    try {
-      await restoreHooksPath(previousHooksPath);
-    } catch (cleanupError) {
-      cleanupFailures.push(`core.hooksPath: ${cleanupError.message}`);
-    }
     const cleanup =
       cleanupFailures.length === 0
         ? 'No partial hook set was activated.'