From 2a3ec5d33195d7290ac0869798cad6f84f84d238 Mon Sep 17 00:00:00 2001
From: nsfisis <nsfisis@gmail.com>
Date: Sat, 27 Jun 2026 05:48:36 +0900
Subject: fix(filesystem-repository): avoid RefCell double borrow on
 installed.php

file_put_contents_if_modified held a filesystem borrow_mut() receiver
while its argument re-borrowed the same RefCell via dump_to_php_code(),
panicking with "RefCell already borrowed". Build the file contents
before taking the borrow.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---
 crates/shirabe/src/repository/filesystem_repository.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/crates/shirabe/src/repository/filesystem_repository.rs b/crates/shirabe/src/repository/filesystem_repository.rs
index 30c01e8..0dae316 100644
--- a/crates/shirabe/src/repository/filesystem_repository.rs
+++ b/crates/shirabe/src/repository/filesystem_repository.rs
@@ -324,9 +324,10 @@ impl FilesystemRepository {
                 &repo_dir,
             )?;
 
+            let installed_php = format!("<?php return {};\n", self.dump_to_php_code(&versions, 0));
             self.filesystem.borrow_mut().file_put_contents_if_modified(
                 &format!("{}/installed.php", repo_dir),
-                &format!("<?php return {};\n", self.dump_to_php_code(&versions, 0)),
+                &installed_php,
             );
             self.filesystem.borrow_mut().file_put_contents_if_modified(
                 &format!("{}/InstalledVersions.php", repo_dir),
-- 
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