From 911d8538fa67f3cc17a37b86291c60a86d9c1435 Mon Sep 17 00:00:00 2001
From: Infinidoge <infinidoge@inx.moe>
Date: Mon, 31 Jan 2022 22:46:29 -0500
Subject: [PATCH] feat(ensure): create ensure module

This module serves to ensure specific directories exist, however in the
future it could be used for other things that need to be 'ensured'.
---
 modules/functionality/ensure.nix             | 21 ++++++++++++++++++++
 modules/modules/{security.nix => global.nix} |  3 +++
 2 files changed, 24 insertions(+)
 create mode 100644 modules/functionality/ensure.nix
 rename modules/modules/{security.nix => global.nix} (84%)

diff --git a/modules/functionality/ensure.nix b/modules/functionality/ensure.nix
new file mode 100644
index 0000000..47d5eb5
--- /dev/null
+++ b/modules/functionality/ensure.nix
@@ -0,0 +1,21 @@
+{ config, lib, pkgs, ... }:
+with lib;
+with lib.hlissner;
+let
+  cfg = config.services.ensure;
+in
+{
+  options.services.ensure = with types; {
+    enable = mkBoolOpt true;
+    directories = mkOpt (listOf string) [ ];
+  };
+
+  config.systemd.services = {
+    "ensure-directories" = mkIf (cfg.enable && (length cfg.directories > 0)) {
+      description = "Ensures certain directories exist (${concatStringsSep "," cfg.directories})";
+      wantedBy = [ "multi-user.target" ];
+      serviceConfig.Type = "oneshot";
+      script = "mkdir -p ${concatStringsSep " " cfg.directories}";
+    };
+  };
+}
diff --git a/modules/modules/security.nix b/modules/modules/global.nix
similarity index 84%
rename from modules/modules/security.nix
rename to modules/modules/global.nix
index d078be9..3679858 100644
--- a/modules/modules/security.nix
+++ b/modules/modules/global.nix
@@ -18,4 +18,7 @@ with lib.hlissner;
 
   # Allow non-root users to allow other users to access mount point
   programs.fuse.userAllowOther = mkDefault true;
+
+  # Ensure certain necessary directories always exist
+  services.ensure.directories = [ "/mnt" ];
 }