Remove ZFS "enabled" option and fix override command options.

borgmatic/config/schema.yaml

@@ -2261,17 +2261,9 @@ properties:
             monitoring documentation for details.
 
     zfs:
-        type: object
-        required: ['enabled']
+        type: ["object", "null"]
         additionalProperties: false
         properties:
-            enabled:
-                type: boolean
-                description: |
-                    Whether to auto-detect and snapshot any ZFS dataset mount
-                    points listed in "source_directories" when creating backups.
-                    Defaults to false.
-                example: true
             zfs_command:
                 type: string
                 description: |

borgmatic/hooks/dispatch.py

@@ -51,7 +51,7 @@ def call_hook(function_name, config, log_prefix, hook_name, *args, **kwargs):
     Raise AttributeError if the function name is not found in the module.
     Raise anything else that the called function raises.
     '''
-    hook_config = config.get(hook_name, {})
+    hook_config = config.get(hook_name) or {}
 
     try:
         module = HOOK_NAME_TO_MODULE[hook_name]
@@ -79,7 +79,7 @@ def call_hooks(function_name, config, log_prefix, hook_names, *args, **kwargs):
     return {
         hook_name: call_hook(function_name, config, log_prefix, hook_name, *args, **kwargs)
         for hook_name in hook_names
-        if config.get(hook_name)
+        if hook_name in config
     }
 
 

borgmatic/hooks/zfs.py

@@ -47,7 +47,7 @@ def dump_data_sources(
     # TODO: Dry run.
 
     # List ZFS datasets to get their mount points.
-    zfs_command = config.get('zfs_command', 'zfs')
+    zfs_command = hook_config.get('zfs_command', 'zfs')
     list_command = (
         zfs_command,
         'list',
@@ -105,10 +105,9 @@ def dump_data_sources(
         logger.debug(f'{log_prefix}: Mounting ZFS snapshot {full_snapshot_name} at {snapshot_path}')
 
         os.makedirs(snapshot_path, mode=0o700, exist_ok=True)
-
         borgmatic.execute.execute_command(
             (
-                config.get('mount_command', 'mount'),
+                hook_config.get('mount_command', 'mount'),
                 '-t',
                 'zfs',
                 f'{dataset_name}@{snapshot_name}',
@@ -133,7 +132,7 @@ def remove_data_source_dumps(hook_config, config, log_prefix, borgmatic_runtime_
     # TODO: Dry run.
 
     # Unmount snapshots.
-    zfs_command = config.get('zfs_command', 'zfs')
+    zfs_command = hook_config.get('zfs_command', 'zfs')
     list_datasets_command = (
         zfs_command,
         'list',
@@ -171,7 +170,7 @@ def remove_data_source_dumps(hook_config, config, log_prefix, borgmatic_runtime_
             logger.debug(f'{log_prefix}: Unmounting ZFS snapshot at {snapshot_path}')
             borgmatic.execute.execute_command(
                 (
-                    config.get('umount_command', 'umount'),
+                    hook_config.get('umount_command', 'umount'),
                     snapshot_path,
                 ),
                 output_log_level=logging.DEBUG,