snapper: add nixos module

fixes #27154
2017-07-16 10:06:42 +01:00
parent f1b45f7d41
commit e8a8f1233a
4 changed files with 197 additions and 0 deletions
@@ -0,0 +1,43 @@
+import ./make-test.nix ({ ... }:
+{
+  name = "snapper";
+
+  machine = { pkgs, lib, ... }: {
+    boot.initrd.postDeviceCommands = ''
+      ${pkgs.btrfs-progs}/bin/mkfs.btrfs -f -L aux /dev/vdb
+    '';
+
+    virtualisation.emptyDiskImages = [ 4096 ];
+
+    fileSystems = lib.mkVMOverride {
+      "/home" = {
+        device = "/dev/disk/by-label/aux";
+        fsType = "btrfs";
+      };
+    };
+    services.snapper.configs.home.subvolume = "/home";
+    services.snapper.filters = "/nix";
+  };
+
+  testScript = ''
+    $machine->succeed("btrfs subvolume create /home/.snapshots");
+
+    $machine->succeed("snapper -c home list");
+
+    $machine->succeed("snapper -c home create --description empty");
+
+    $machine->succeed("echo test > /home/file");
+    $machine->succeed("snapper -c home create --description file");
+
+    $machine->succeed("snapper -c home status 1..2");
+
+    $machine->succeed("snapper -c home undochange 1..2");
+    $machine->fail("ls /home/file");
+
+    $machine->succeed("snapper -c home delete 2");
+
+    $machine->succeed("systemctl --wait start snapper-timeline.service");
+
+    $machine->succeed("systemctl --wait start snapper-cleanup.service");
+  '';
+})