From c1eebe17dce34dbe0e481a744b6d10a52f1c1fc2 Mon Sep 17 00:00:00 2001
From: Moritz 'e1mo' Fromm <git@e1mo.de>
Date: Tue, 13 Jun 2023 21:55:02 +0200
Subject: [PATCH] website: Clear old generations on dev

With https://github.com/chaos-jetzt/website_pelican/pull/33, a lot of
orphans are to be expected which will take up space on our servers. This
introduces a timer which runs once a week and will delete any
website generations older than 28 days.
---
 services/website.nix | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/services/website.nix b/services/website.nix
index 5bcdab1..b6765cc 100644
--- a/services/website.nix
+++ b/services/website.nix
@@ -82,4 +82,14 @@ in {
       chown -R web-deploy:${config.services.nginx.group} ${webroot}
     fi
   '';
+
+  # Delete dev website builds older than 28 days
+  systemd.services."website-purge-old" = lib.mkIf isDev {
+    path = with pkgs; [ fd ];
+    script = ''
+      fd --print0 --changed-before 28d --type d --max-depth 1 --min-depth 1 . ${webroot} --exec-batch rm -vr {} \;
+    '';
+    startAt = "weekly";
+    serviceConfig.User = "web-deploy";
+  };
 }