chore: bump all

modules/nixos/impermanence/rollback.nix

@@ -24,36 +24,51 @@ in {
   };
 
   config = mkIf cfg.enable {
-    boot.initrd.postDeviceCommands = ''
-      # Mount the btrfs filesystem.
-      mkdir -p /btrfs-tmp
-      mount -t btrfs "${cfg.device}" /btrfs-tmp
+    boot.initrd.systemd.services.rollback = {
+      description = ''
+        Rollback root filesystem to empty while maintaining old roots
+      '';
+      wantedBy = [ "initrd.target" ];
+      before = [ "sysroot.mount" ];
+      path = with pkgs; [
+        coreutils
+        findutils
+        util-linuxMinimal.bin
+        btrfs-progs
+      ];
+      unitConfig.DefaultDependencies = "no";
+      serviceConfig.Type = "oneshot";
+      script = ''
+        # Mount the btrfs filesystem.
+        mkdir -p /btrfs-tmp
+        mount -t btrfs "${cfg.device}" /btrfs-tmp
 
-      # If the moribund subvolume exists, send it do 'death row' (old-roots),
-      # where live for about three days before its eventual deletion.
-      if [[ -e "/btrfs-tmp/${cfg.subvolume}" ]]; then
-          mkdir -p /btrfs-tmp/old-roots
-          timestamp=$(date --date="@$(stat -c %Y "/btrfs-tmp/${cfg.subvolume}")" "+%Y-%m-%-d_%H:%M:%S")
-          mv "/btrfs-tmp/${cfg.subvolume}" "/btrfs-tmp/old-roots/$timestamp"
-      fi
+        # If the moribund subvolume exists, send it do 'death row' (old-roots),
+        # where live for about three days before its eventual deletion.
+        if [[ -e "/btrfs-tmp/${cfg.subvolume}" ]]; then
+            mkdir -p /btrfs-tmp/old-roots
+            timestamp=$(date --date="@$(stat -c %Y "/btrfs-tmp/${cfg.subvolume}")" "+%Y-%m-%-d_%H:%M:%S")
+            mv "/btrfs-tmp/${cfg.subvolume}" "/btrfs-tmp/old-roots/$timestamp"
+        fi
 
-      delete_subvolume_recursively() {
-          IFS=$'\n'
-          for i in $(btrfs subvolume list -o "$1" | cut -f 9- -d ' '); do
-              delete_subvolume_recursively "/btrfs-tmp/$i"
-          done
-          btrfs subvolume delete "$1"
-      }
+        delete_subvolume_recursively() {
+            IFS=$'\n'
+            for i in $(btrfs subvolume list -o "$1" | cut -f 9- -d ' '); do
+                delete_subvolume_recursively "/btrfs-tmp/$i"
+            done
+            btrfs subvolume delete "$1"
+        }
 
-      # Delete previous roots older than three days.
-      # TODO: I would prefer archiving the last N previous roots, rather than
-      # time.
-      for i in $(find /btrfs-tmp/old-roots/ -maxdepth 1 -mtime +3); do
-          delete_subvolume_recursively "$i"
-      done
+        # Delete previous roots older than three days.
+        # TODO: I would prefer archiving the last N previous roots, rather than
+        # time.
+        for i in $(find /btrfs-tmp/old-roots/ -maxdepth 1 -mtime +3); do
+            delete_subvolume_recursively "$i"
+        done
 
-      btrfs subvolume create "/btrfs-tmp/${cfg.subvolume}"
-      umount /btrfs-tmp
-    '';
+        btrfs subvolume create "/btrfs-tmp/${cfg.subvolume}"
+        umount /btrfs-tmp
+      '';
+    };
   };
 }