From 4c01f2c2464f4133cb48125c8f2c55827cf0bf67 Mon Sep 17 00:00:00 2001
From: Hermes Agent <hermes@localhost>
Date: Wed, 12 Aug 2026 04:54:43 +0000
Subject: Validate APT config before creating build workspace

---
 src/package_installer.rs | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/package_installer.rs')

diff --git a/src/package_installer.rs b/src/package_installer.rs
index c5c6451..03e429f 100644
--- a/src/package_installer.rs
+++ b/src/package_installer.rs
@@ -11,6 +11,9 @@ impl AptConfig {
         if path.as_os_str().is_empty() || path.is_dir() {
             bail!("APT configuration must be a file path: {}", path.display());
         }
+        if !path.is_file() {
+            bail!("APT configuration does not exist or is not a regular file: {}", path.display());
+        }
         Ok(Self(path.to_path_buf()))
     }
 
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