From 04bedda0b605dcecacb23b65d5a05c8f4aecfbdd Mon Sep 17 00:00:00 2001
From: Philipp Middendorf <middendorf@plapadoo.de>
Date: Thu, 9 Apr 2020 17:05:29 +0200
Subject: [PATCH] gc.cc: Ignore hidden files in temproots

---
 src/libstore/gc.cc | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/libstore/gc.cc b/src/libstore/gc.cc
index 0c3d89611..6bab1e37c 100644
--- a/src/libstore/gc.cc
+++ b/src/libstore/gc.cc
@@ -202,6 +202,11 @@ void LocalStore::findTempRoots(FDs & fds, Roots & tempRoots, bool censor)
     /* Read the `temproots' directory for per-process temporary root
        files. */
     for (auto & i : readDirectory(tempRootsDir)) {
+        if (i.name[0] == '.') {
+            // Ignore hidden files. Some package managers (notably portage) create
+            // those to keep the directory alive.
+            continue;
+        }
         Path path = tempRootsDir + "/" + i.name;
 
         pid_t pid = std::stoi(i.name);