localbackup: integrate into regression test

checks/backups/flake-module.nix

@@ -30,6 +30,7 @@
       {
         imports = [
           self.clanModules.borgbackup
+          self.clanModules.localbackup
           self.clanModules.sshd
         ];
         clan.networking.targetHost = "machine";
@@ -102,6 +103,26 @@
         };
         clan.borgbackup.destinations.test-backup.repo = "borg@machine:.";
 
+        fileSystems."/mnt/external-disk" = {
+          device = "/dev/vdb"; # created in tests with virtualisation.emptyDisks
+          autoFormat = true;
+          fsType = "ext4";
+          options = [
+            "defaults"
+            "noauto"
+          ];
+        };
+
+        clan.localbackup.targets.hdd = {
+          directory = "/mnt/external-disk";
+          mountHook = ''
+            touch /run/mount-external-disk
+          '';
+          unmountHook = ''
+            touch /run/unmount-external-disk
+          '';
+        };
+
         services.borgbackup.repos.test-backups = {
           path = "/var/lib/borgbackup/test-backups";
           authorizedKeys = [ (builtins.readFile ../lib/ssh/pubkey) ];
@@ -114,10 +135,13 @@
       checks = pkgs.lib.mkIf (pkgs.stdenv.isLinux) {
         test-backups = (import ../lib/test-base.nix) {
           name = "test-backups";
-          nodes.machine.imports = [
-            self.nixosModules.clanCore
-            self.nixosModules.test-backup
-          ];
+          nodes.machine = {
+            imports = [
+              self.nixosModules.clanCore
+              self.nixosModules.test-backup
+            ];
+            virtualisation.emptyDiskImages = [ 256 ];
+          };
 
           testScript = ''
             import json
@@ -130,16 +154,27 @@
             # create
             machine.succeed("clan --debug --flake ${self} backups create test-backup")
             machine.wait_until_succeeds("! systemctl is-active borgbackup-job-test-backup >&2")
+            machine.succeed("test -f /run/mount-external-disk")
+            machine.succeed("test -f /run/unmount-external-disk")
 
             # list
             backup_id = json.loads(machine.succeed("borg-job-test-backup list --json"))["archives"][0]["archive"]
             out = machine.succeed("clan --debug --flake ${self} backups list test-backup").strip()
             print(out)
             assert backup_id in out, f"backup {backup_id} not found in {out}"
+            localbackup_id = "hdd::/mnt/external-disk/snapshot.0"
+            assert localbackup_id in out, "localbackup not found in {out}"
 
-            # restore
+            ## borgbackup restore
             machine.succeed("rm -f /var/test-backups/somefile")
-            machine.succeed(f"clan --debug --flake ${self} backups restore test-backup borgbackup {out} >&2")
+            machine.succeed(f"clan --debug --flake ${self} backups restore test-backup borgbackup 'test-backup::borg@machine:.::{backup_id}' >&2")
+            assert machine.succeed("cat /var/test-backups/somefile").strip() == "testing", "restore failed"
+            machine.succeed("test -f /var/test-service/pre-restore-command")
+            machine.succeed("test -f /var/test-service/post-restore-command")
+
+            ## localbackup restore
+            machine.succeed("rm -f /var/test-backups/somefile /var/test-service/{pre,post}-restore-command")
+            machine.succeed(f"clan --debug --flake ${self} backups restore test-backup localbackup '{localbackup_id}' >&2")
             assert machine.succeed("cat /var/test-backups/somefile").strip() == "testing", "restore failed"
             machine.succeed("test -f /var/test-service/pre-restore-command")
             machine.succeed("test -f /var/test-service/post-restore-command")

clanModules/localbackup.nix

@@ -158,7 +158,7 @@ in
               ]
             }
             name=$(awk -F'::' '{print $1}' <<< $NAME)
-            backupname=''${NAME#$mountpoint::}
+            backupname=''${NAME#$name::}
 
             if command -v localbackup-mount-$name; then
               localbackup-mount-$name