Merge overrides settings if values are dicts (#188)

* Merge overrides settings if dicts

* test

* Pin sphinx version <4 and fix changelog username change

* Add tests

CHANGELOG.md

@@ -90,7 +90,7 @@ github_url: 'https://github.com/jupyterlab/jupyterlab_server/blob/master/CHANGEL
 
 ## 2.1.5
 
-* Fix/cp949 encoding error [#158](https://github.com/jupyterlab/jupyterlab_server/pull/158) ([@takavfx](https://github.com/takavfx))
+* Fix/cp949 encoding error [#158](https://github.com/jupyterlab/jupyterlab_server/pull/158) ([@k-takanori](https://github.com/k-takanori))
 
 ## 2.1.4
 

docs/environment.yml

@@ -4,7 +4,7 @@ channels:
   - conda-forge
 dependencies:
 - python=3.8
-- sphinx>=1.8
+- sphinx<4.0
 - sphinx-copybutton
 - pip
 - myst-parser

jupyterlab_server/settings_handler.py

@@ -21,8 +21,6 @@
 
 def _get_schema(schemas_dir, schema_name, overrides, labextensions_path):
     """Returns a dict containing a parsed and validated JSON schema."""
-
-
     notfound_error = 'Schema not found: %s'
     parse_error = 'Failed parsing schema (%s): %s'
     validation_error = 'Failed validating schema (%s): %s'
@@ -215,12 +213,18 @@ def _list_settings(schemas_dir, settings_dir, overrides, extension='.json', labe
 
 def _override(schema_name, schema, overrides):
     """Override default values in the schema if necessary."""
-
     if schema_name in overrides:
         defaults = overrides[schema_name]
         for key in defaults:
             if key in schema['properties']:
-                schema['properties'][key]['default'] = defaults[key]
+                new_defaults = schema['properties'][key]['default']
+                # If values for defaults are dicts do a recursive update
+                if isinstance(new_defaults, dict):
+                    recursive_update(new_defaults.copy(), defaults[key])
+                else:
+                    new_defaults = defaults[key]
+
+                schema['properties'][key]['default'] = new_defaults
             else:
                 schema['properties'][key] = dict(default=defaults[key])
 
@@ -259,14 +263,17 @@ def _get_overrides(app_settings_dir):
     """Get overrides settings from `app_settings_dir`."""
     overrides, error = {}, ""
     overrides_path = os.path.join(app_settings_dir, 'overrides.json')
+
     if not os.path.exists(overrides_path):
         overrides_path = os.path.join(app_settings_dir, 'overrides.json5')
+
     if os.path.exists(overrides_path):
         with open(overrides_path, encoding='utf-8') as fid:
             try:
                 overrides = json5.load(fid)
             except Exception as e:
                 error = e
+
     # Allow `default_settings_overrides.json` files in <jupyter_config>/labconfig dirs
     # to allow layering of defaults
     cm = ConfigManager(config_dir_name="labconfig")

jupyterlab_server/tests/app-settings/overrides.json

@@ -1,6 +1,9 @@
 {
   "@jupyterlab/apputils-extension:themes": {
-    "theme": "JupyterLab Dark"
+    "theme": "JupyterLab Dark",
+    "codeCellConfig": {
+      "lineNumbers": false
+   }
   },
   "@jupyterlab/unicode-extension:plugin": {
     "comment": "Here are some languages with unicode in their names: id: Bahasa Indonesia, ms: Bahasa Melayu, bs: Bosanski, ca: Català, cs: Čeština, da: Dansk, de: Deutsch, et: Eesti, en: English, es: Español, fil: Filipino, fr: Français, it: Italiano, hu: Magyar, nl: Nederlands, no: Norsk, pl: Polski, pt-br: Português (Brasil), pt: Português (Portugal), ro: Română, fi: Suomi, sv: Svenska, vi: Tiếng Việt, tr: Türkçe, el: Ελληνικά, ru: Русский, sr: Српски, uk: Українська, he: עברית, ar: العربية, th: ไทย, ko: 한국어, ja: 日本語, zh: 中文（中国）, zh-tw: 中文（台灣）"

jupyterlab_server/tests/schemas/@jupyterlab/apputils-extension/themes.json

@@ -4,6 +4,28 @@
   "properties": {
     "theme": {
       "type": "string", "title": "Selected Theme", "default": "JupyterLab Light"
+    },
+    "codeCellConfig": {
+      "title": "Code Cell Configuration",
+      "description": "The configuration for all code cells.",
+      "$ref": "#/definitions/editorConfig",
+      "default": {
+        "autoClosingBrackets": true,
+        "cursorBlinkRate": 530,
+        "fontFamily": null,
+        "fontSize": null,
+        "lineHeight": null,
+        "lineNumbers": false,
+        "lineWrap": "off",
+        "matchBrackets": true,
+        "readOnly": false,
+        "insertSpaces": true,
+        "tabSize": 4,
+        "wordWrapColumn": 80,
+        "rulers": [],
+        "codeFolding": false,
+        "lineWiseCopyCut": true
+      }
     }
   },
   "type": "object"

jupyterlab_server/tests/test_settings_api.py

@@ -13,6 +13,21 @@
 from .utils import validate_request
 
 
+async def test_get_settings_overrides_dicts(jp_fetch, labserverapp):
+    # Check that values that are dictionaries in overrides.json are
+    # merged with the schema.
+    id = '@jupyterlab/apputils-extension:themes'
+    r = await jp_fetch('lab', 'api', 'settings', id)
+    validate_request(r)
+    res = r.body.decode()
+    data = json.loads(res)
+    assert data['id'] == id
+    schema = data['schema']
+    # Check that overrides.json file is respected.
+    assert schema['properties']['codeCellConfig']['default']["lineNumbers"] is False
+    assert len(schema['properties']['codeCellConfig']['default']) == 15
+
+
 async def test_get_settings(jp_fetch, labserverapp):
     id = '@jupyterlab/apputils-extension:themes'
     r = await jp_fetch('lab', 'api', 'settings', id)