Use the schema to eliminate custom code (#11108)

* use the schema to eliminate custom code

* Update docs/reference_info_json.md

Co-authored-by: Ryan <fauxpark@gmail.com>

* make flake8 happy

* bugfix

* do not overwrite make vars from json

Co-authored-by: Ryan <fauxpark@gmail.com>

5 files changed, 71 insertions, 53 deletions

diff --git a/lib/python/qmk/cli/generate/info_json.py b/lib/python/qmk/cli/generate/info_json.py
index fba4b1c014..f3fc54ddcf 100755
--- a/lib/python/qmk/cli/generate/info_json.py
+++ b/lib/python/qmk/cli/generate/info_json.py
@@ -4,14 +4,41 @@ Compile an info.json for a particular keyboard and pretty-print it.
 """
 import json
 
+from jsonschema import Draft7Validator, validators
 from milc import cli
 
-from qmk.info_json_encoder import InfoJSONEncoder
 from qmk.decorators import automagic_keyboard, automagic_keymap
-from qmk.info import info_json
+from qmk.info import info_json, _jsonschema
+from qmk.info_json_encoder import InfoJSONEncoder
 from qmk.path import is_keyboard
 
 
+def pruning_validator(validator_class):
+    """Extends Draft7Validator to remove properties that aren't specified in the schema.
+    """
+    validate_properties = validator_class.VALIDATORS["properties"]
+
+    def remove_additional_properties(validator, properties, instance, schema):
+        for prop in list(instance.keys()):
+            if prop not in properties:
+                del instance[prop]
+
+        for error in validate_properties(validator, properties, instance, schema):
+            yield error
+
+    return validators.extend(validator_class, {"properties": remove_additional_properties})
+
+
+def strip_info_json(kb_info_json):
+    """Remove the API-only properties from the info.json.
+    """
+    pruning_draft_7_validator = pruning_validator(Draft7Validator)
+    schema = _jsonschema('keyboard')
+    validator = pruning_draft_7_validator(schema).validate
+
+    return validator(kb_info_json)
+
+
 @cli.argument('-kb', '--keyboard', help='Keyboard to show info for.')
 @cli.argument('-km', '--keymap', help='Show the layers for a JSON keymap too.')
 @cli.subcommand('Generate an info.json file for a keyboard.', hidden=False if cli.config.user.developer else True)
@@ -22,7 +49,7 @@ def generate_info_json(cli):
     """
     # Determine our keyboard(s)
     if not cli.config.generate_info_json.keyboard:
-        cli.log.error('Missing paramater: --keyboard')
+        cli.log.error('Missing parameter: --keyboard')
         cli.subcommands['info'].print_help()
         return False
 
@@ -32,18 +59,7 @@ def generate_info_json(cli):
 
     # Build the info.json file
     kb_info_json = info_json(cli.config.generate_info_json.keyboard)
-    pared_down_json = {}
-
-    for key in ('manufacturer', 'maintainer', 'usb', 'keyboard_name', 'width', 'height', 'debounce', 'diode_direction', 'features', 'community_layouts', 'layout_aliases', 'matrix_pins', 'rgblight', 'url'):
-        if key in kb_info_json:
-            pared_down_json[key] = kb_info_json[key]
-
-    pared_down_json['layouts'] = {}
-    if 'layouts' in kb_info_json:
-        for layout_name, layout in kb_info_json['layouts'].items():
-            pared_down_json['layouts'][layout_name] = {}
-            pared_down_json['layouts'][layout_name]['key_count'] = layout.get('key_count', len(layout['layout']))
-            pared_down_json['layouts'][layout_name]['layout'] = layout['layout']
+    strip_info_json(kb_info_json)
 
     # Display the results
-    print(json.dumps(pared_down_json, indent=2, cls=InfoJSONEncoder))
+    print(json.dumps(kb_info_json, indent=2, cls=InfoJSONEncoder))
diff --git a/lib/python/qmk/cli/generate/layouts.py b/lib/python/qmk/cli/generate/layouts.py
index 273870e15c..b7baae0651 100755
--- a/lib/python/qmk/cli/generate/layouts.py
+++ b/lib/python/qmk/cli/generate/layouts.py
@@ -54,6 +54,10 @@ def generate_layouts(cli):
         if kb_info_json['layouts'][layout_name]['c_macro']:
             continue
 
+        if 'matrix' not in kb_info_json['layouts'][layout_name]['layout'][0]:
+            cli.log.debug('%s/%s: No matrix data!', cli.config.generate_layouts.keyboard, layout_name)
+            continue
+
         layout_keys = []
         layout_matrix = [['KC_NO' for i in range(col_num)] for i in range(row_num)]
 
diff --git a/lib/python/qmk/cli/generate/rules_mk.py b/lib/python/qmk/cli/generate/rules_mk.py
index 2a7e918569..0fdccb4048 100755
--- a/lib/python/qmk/cli/generate/rules_mk.py
+++ b/lib/python/qmk/cli/generate/rules_mk.py
@@ -37,26 +37,26 @@ def generate_rules_mk(cli):
 
     # Bring in settings
     for info_key, rule_key in info_to_rules.items():
-        rules_mk_lines.append(f'{rule_key} := {kb_info_json[info_key]}')
+        rules_mk_lines.append(f'{rule_key} ?= {kb_info_json[info_key]}')
 
     # Find features that should be enabled
     if 'features' in kb_info_json:
         for feature, enabled in kb_info_json['features'].items():
             if feature == 'bootmagic_lite' and enabled:
-                rules_mk_lines.append('BOOTMAGIC_ENABLE := lite')
+                rules_mk_lines.append('BOOTMAGIC_ENABLE ?= lite')
             else:
                 feature = feature.upper()
                 enabled = 'yes' if enabled else 'no'
-                rules_mk_lines.append(f'{feature}_ENABLE := {enabled}')
+                rules_mk_lines.append(f'{feature}_ENABLE ?= {enabled}')
 
     # Set the LED driver
     if 'led_matrix' in kb_info_json and 'driver' in kb_info_json['led_matrix']:
         driver = kb_info_json['led_matrix']['driver']
-        rules_mk_lines.append(f'LED_MATRIX_DRIVER = {driver}')
+        rules_mk_lines.append(f'LED_MATRIX_DRIVER ?= {driver}')
 
     # Add community layouts
     if 'community_layouts' in kb_info_json:
-        rules_mk_lines.append(f'LAYOUTS = {" ".join(kb_info_json["community_layouts"])}')
+        rules_mk_lines.append(f'LAYOUTS ?= {" ".join(kb_info_json["community_layouts"])}')
 
     # Show the results
     rules_mk = '\n'.join(rules_mk_lines) + '\n'
diff --git a/lib/python/qmk/constants.py b/lib/python/qmk/constants.py
index 675832c506..6a643070fd 100644
--- a/lib/python/qmk/constants.py
+++ b/lib/python/qmk/constants.py
@@ -26,5 +26,5 @@ ROW_LETTERS = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnop'
 LED_INDICATORS = {
     'caps_lock': 'LED_CAPS_LOCK_PIN',
     'num_lock': 'LED_NUM_LOCK_PIN',
-    'scrol_lock': 'LED_SCROLL_LOCK_PIN'
+    'scrol_lock': 'LED_SCROLL_LOCK_PIN',
 }
diff --git a/lib/python/qmk/info.py b/lib/python/qmk/info.py
index 28c281a4bc..0ea5136a97 100644
--- a/lib/python/qmk/info.py
+++ b/lib/python/qmk/info.py
@@ -1,6 +1,7 @@
 """Functions that help us generate and use info.json files.
 """
 import json
+from collections.abc import Mapping
 from glob import glob
 from pathlib import Path
 
@@ -140,6 +141,8 @@ def _json_load(json_file):
 
 def _jsonschema(schema_name):
     """Read a jsonschema file from disk.
+
+    FIXME(skullydazed/anyone): Refactor to make this a public function.
     """
     schema_path = Path(f'data/schemas/{schema_name}.jsonschema')
 
@@ -638,49 +641,44 @@ def unknown_processor_rules(info_data, rules):
     return info_data
 
 
+def deep_update(origdict, newdict):
+    """Update a dictionary in place, recursing to do a deep copy.
+    """
+    for key, value in newdict.items():
+        if isinstance(value, Mapping):
+            origdict[key] = deep_update(origdict.get(key, {}), value)
+
+        else:
+            origdict[key] = value
+
+    return origdict
+
+
 def merge_info_jsons(keyboard, info_data):
     """Return a merged copy of all the info.json files for a keyboard.
     """
     for info_file in find_info_json(keyboard):
         # Load and validate the JSON data
+        new_info_data = _json_load(info_file)
+
+        if not isinstance(new_info_data, dict):
+            _log_error(info_data, "Invalid file %s, root object should be a dictionary." % (str(info_file),))
+            continue
+
         try:
-            new_info_data = _json_load(info_file)
             keyboard_validate(new_info_data)
-
         except jsonschema.ValidationError as e:
             json_path = '.'.join([str(p) for p in e.absolute_path])
-            cli.log.error('Invalid info.json data: %s: %s: %s', info_file, json_path, e.message)
+            cli.log.error('Not including data from file: %s', info_file)
+            cli.log.error('\t%s: %s', json_path, e.message)
             continue
 
-        if not isinstance(new_info_data, dict):
-            _log_error(info_data, "Invalid file %s, root object should be a dictionary." % (str(info_file),))
-            continue
-
-        # Copy whitelisted keys into `info_data`
-        for key in ('debounce', 'diode_direction', 'indicators', 'keyboard_name', 'manufacturer', 'identifier', 'url', 'maintainer', 'processor', 'bootloader', 'width', 'height'):
-            if key in new_info_data:
-                info_data[key] = new_info_data[key]
-
-        # Deep merge certain keys
-        # FIXME(skullydazed/anyone): this should be generalized more so that we can inteligently merge more than one level deep. It would be nice if we could filter on valid keys too. That may have to wait for a future where we use openapi or something.
-        for key in ('features', 'layout_aliases', 'led_matrix', 'matrix_pins', 'rgblight', 'usb'):
-            if key in new_info_data:
-                if key not in info_data:
-                    info_data[key] = {}
-
-                info_data[key].update(new_info_data[key])
-
-        # Merge the layouts
-        if 'community_layouts' in new_info_data:
-            if 'community_layouts' in info_data:
-                for layout in new_info_data['community_layouts']:
-                    if layout not in info_data['community_layouts']:
-                        info_data['community_layouts'].append(layout)
-            else:
-                info_data['community_layouts'] = new_info_data['community_layouts']
+        # Mark the layouts as coming from json
+        for layout in new_info_data.get('layouts', {}).values():
+            layout['c_macro'] = False
 
-        if 'layouts' in new_info_data:
-            _merge_layouts(info_data, new_info_data)
+        # Update info_data with the new data
+        deep_update(info_data, new_info_data)
 
     return info_data