From e1df6c220ac153ccae8f2e5bcb7969c034bc10ef Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Th=C3=A9ophane=20Hufschmitt?=
 <theophane.hufschmitt@tweag.io>
Date: Mon, 11 Apr 2022 10:20:36 +0200
Subject: [PATCH] =?UTF-8?q?Censor=20the=20gc=20roots=20that=20aren?=
 =?UTF-8?q?=E2=80=99t=20under=20`stateDir`?=
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---
 src/libstore/gc.cc | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/libstore/gc.cc b/src/libstore/gc.cc
index 1499296fb..14b559c1e 100644
--- a/src/libstore/gc.cc
+++ b/src/libstore/gc.cc
@@ -340,11 +340,13 @@ Roots LocalStore::findRoots(bool censor)
             if (parsedLine.size() != 2)
                 throw Error("Invalid result from the gc helper");
             auto rawDestPath = parsedLine[0];
+            auto retainer = parsedLine[1];
             if (!isInStore(rawDestPath)) continue;
             try {
                 auto destPath = toStorePath(rawDestPath).first;
                 if (!isValidPath(destPath)) continue;
-                roots[destPath].insert(parsedLine[1]);
+                roots[destPath].insert(
+                    (!censor || isInDir(retainer, stateDir)) ? retainer : censored);
             } catch (Error &) {
             }
         }