From 5c94f13b7c931daf2c921b4d6a7e4c293bfcb425 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Charlotte=20=F0=9F=A6=9D=20Delenk?= <lotte@chir.rs>
Date: Wed, 6 Nov 2024 09:17:37 +0100
Subject: [PATCH] persist cache files for 7 days

---
 modules/environment/impermanence.nix      | 4 ++++
 modules/environment/user-impermanence.nix | 2 ++
 2 files changed, 6 insertions(+)

diff --git a/modules/environment/impermanence.nix b/modules/environment/impermanence.nix
index 6c03b0d3..de0ff570 100644
--- a/modules/environment/impermanence.nix
+++ b/modules/environment/impermanence.nix
@@ -98,6 +98,7 @@ with lib; {
         directories = [
           "/var/log"
           "/var/lib/nixos"
+          "/var/cache"
         ];
         files = [
           "/etc/ssh/ssh_host_ecdsa_key"
@@ -108,6 +109,9 @@ with lib; {
           "/etc/ssh/ssh_host_rsa_key.pub"
         ];
       };
+      systemd.tmpfiles.rules = [
+        "d /persistent/var/cache 1777 root root 7d -"
+      ];
     })
   ];
 }
diff --git a/modules/environment/user-impermanence.nix b/modules/environment/user-impermanence.nix
index 519afee9..d28b2f87 100644
--- a/modules/environment/user-impermanence.nix
+++ b/modules/environment/user-impermanence.nix
@@ -27,10 +27,12 @@ with lib; {
             "Pictures"
             "Documents"
             "Videos"
+            ".cache"
           ];
         };
       })
       config.environment.impermanence.users);
+    systemd.tmpfiles.rules = map (name: "d /persistent/home/${name}/.cache 700 ${name} ${name} 7d -") config.environment.impermanence.users;
     systemd.services = listToAttrs (flatten (map (name: let
         cfg = config.users.users.${name};
       in [