From 44d649c5557f7cc941773aac29ceee4d3daed30d Mon Sep 17 00:00:00 2001
From: mc-fucker <dev@mc-fucker.cool>
Date: Mon, 10 Nov 2025 14:16:07 +0100
Subject: [PATCH] made snapraid use snapshots

---
 snapraid.nix | 141 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 141 insertions(+)
 create mode 100644 snapraid.nix

diff --git a/snapraid.nix b/snapraid.nix
new file mode 100644
index 0000000..60f845b
--- /dev/null
+++ b/snapraid.nix
@@ -0,0 +1,141 @@
+{ pkgs, ... }:
+let
+  excludes = [
+    "/media/usenet/incomplete/"
+    "/.snapshot/"
+  ];
+  snapshot-path = [
+    pkgs.bash
+    pkgs.btrfs-progs
+  ];
+in
+{
+  #systemd.timers."snapraid-sync".enable = false; #temporarily
+  #systemd.timers."snapraid-scrub".enable = false; #temporarily
+
+  systemd.services."snapraid-sync" = {
+    #preStart = "systemctl start snapraid-pre";
+    #postStart = "systemctl start snapraid-post";
+    #path = [
+    #  pkgs.bash
+    #  pkgs.btrfs-progs
+    #];
+    serviceConfig = {
+      ReadWritePaths = [
+        "/mnt/snapshot/ZVV0688G/.snapshot/"
+        "/mnt/snapshot/ZVV072JR/.snapshot/"
+        "/mnt/snapshot/ZXA0FSKT/.snapshot/"
+        "/mnt/snapshot/X2N0A0AZFJDH/.snapshot/"
+        "/mnt/snapshot/53G0A2AXFJDH/.snapshot/"
+        "/mnt/snapshot/92F0A079FJDH/.snapshot/"
+        "/mnt/snapshot/X2N0A0AXFJDH/.snapshot/"
+        "/mnt/snapshot/43P0A00FFJDH/.snapshot/"
+        "/mnt/snapshot/ZA1D9307/.snapshot/"
+        "/mnt/snapshot/1EJZN6MZ/.snapshot/"
+        "/mnt/snapshot/1EKR513Z/.snapshot/"
+        "/mnt/snapshot/1EKVK21Z/.snapshot/"
+      ];
+    };
+    unitConfig.After = "snapraid-pre.service";
+    unitConfig.Before = "snapraid-post.service";
+    wants = [
+      "snapraid-pre.service"
+      "snapraid-post.service"
+    ];
+  };
+
+  systemd.services = {
+    snapraid-pre = {
+      description = "Create btrfs snapshots for each disk in the array";
+      serviceConfig = {
+        Type = "oneshot";
+        ExecStart = "/etc/nixos/modules/snapraid_snapshots.sh create";
+      };
+      path = snapshot-path;
+    };
+    snapraid-post = {
+      description = "Delete btrfs snapshots for each disk in the array";
+      serviceConfig = {
+        Type = "oneshot";
+        ExecStart = "/etc/nixos/modules/snapraid_snapshots.sh delete";
+      };
+      path = snapshot-path;
+    };
+  };
+
+  services.snapraid = {
+    enable = true;
+    scrub.plan = 5;
+    touchBeforeSync = false; # doesn't work with snapshots
+    parityFiles = [
+      "/mnt/drives/43P0A00AFJDH/snapraid1.parity"
+      "/mnt/drives/ZXA0MNRB/snapraid2.parity"
+    ];
+    dataDisks = {
+      d1 =  "/mnt/snapshot/ZVV0688G/";
+      d2 =  "/mnt/snapshot/ZVV072JR/";
+      d3 =  "/mnt/snapshot/ZXA0FSKT/";
+      d4 =  "/mnt/snapshot/X2N0A0AZFJDH/";
+      d5 =  "/mnt/snapshot/53G0A2AXFJDH/";
+      d6 =  "/mnt/snapshot/92F0A079FJDH/";
+      d7 =  "/mnt/snapshot/X2N0A0AXFJDH/";
+      d8 =  "/mnt/snapshot/43P0A00FFJDH/";
+      d9 =  "/mnt/snapshot/ZA1D9307/";
+      d10 = "/mnt/snapshot/1EJZN6MZ/";
+      d11 = "/mnt/snapshot/1EKR513Z/";
+      d12 = "/mnt/snapshot/1EKVK21Z/";
+    };
+    contentFiles = [
+      "/mnt/snapraid1.content"
+      "/mnt/drives/43P0A00AFJDH/snapraid2.content"
+      "/mnt/drives/ZXA0MNRB/snapraid3.content"
+    ];
+    exclude = excludes;
+  };
+
+  #imports = [ ./modules/snapraid.nix ];
+
+  #services.snapraidnew = {
+  #  "8tb" = {
+  #    arrayName = "8tb";
+  #    enable = true;
+  #    scrub.plan = 5;
+  #    parityFiles = [
+  #      "/mnt/drives/ZA1D9307/snapraid-8tb.parity"
+  #    ];
+  #    dataDisks = {
+  #      d1 = "/mnt/drives/1EJZN6MZ";
+  #      d2 = "/mnt/drives/1EKR513Z";
+  #      d3 = "/mnt/drives/1EKVK21Z";
+  #    };
+  #    contentFiles = [
+  #      "/mnt/snapraid-8tb1.content"
+  #      "/mnt/drives/X2N0A0AZFJDH/snapraid-8tb2.content"
+  #    ];
+  #    exclude = excludes;
+  #  };
+  #  "18tb" = {
+  #    enable = true;
+  #    scrub.plan = 5;
+  #    parityFiles = [
+  #      "/mnt/drives/X2N0A0AZFJDH/snapraid.parity"
+  #    ];
+  #    dataDisks = {
+  #      d1 = "/mnt/drives/43P0A00AFJDH";
+  #      d2 = "/mnt/drives/43P0A00FFJDH";
+  #      d3 = "/mnt/drives/92F0A079FJDH";
+  #      d4 = "/mnt/drives/X2N0A0AXFJDH";
+  #      d5 = "/mnt/drives/53J0A016FJDH";
+  #      d6 = "/mnt/drives/ZVV072JR";
+  #      d7 = "/mnt/drives/ZVV0688G";
+  #    };
+  #    contentFiles = [
+  #      "/mnt/snapraid-18tb1.content"
+  #      "/mnt/drives/ZA1D9307/snapraid-18tb2.content"
+  #    ];
+  #    exclude = excludes;
+  #  };
+  #};
+
+}
+# vim: set et ts=2 sw=2 ai: