qmk_firmware/lib/python/qmk/json_encoders.py

238 lines
6.8 KiB
Python
Executable File

"""Class that pretty-prints QMK info.json files.
"""
import json
from decimal import Decimal
newline = '\n'
class QMKJSONEncoder(json.JSONEncoder):
"""Base class for all QMK JSON encoders.
"""
container_types = (list, tuple, dict)
indentation_char = " "
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
self.indentation_level = 0
if not self.indent:
self.indent = 4
def encode_decimal(self, obj):
"""Encode a decimal object.
"""
if obj == int(obj): # I can't believe Decimal objects don't have .is_integer()
return int(obj)
return float(obj)
def encode_dict(self, obj, path):
"""Encode a dict-like object.
"""
if obj:
self.indentation_level += 1
items = sorted(obj.items(), key=self.sort_dict) if self.sort_keys else obj.items()
output = [self.indent_str + f"{json.dumps(key)}: {self.encode(value, path + [key])}" for key, value in items]
self.indentation_level -= 1
return "{\n" + ",\n".join(output) + "\n" + self.indent_str + "}"
else:
return "{}"
def encode_dict_single_line(self, obj, path):
"""Encode a dict-like object onto a single line.
"""
return "{" + ", ".join(f"{json.dumps(key)}: {self.encode(value, path + [key])}" for key, value in sorted(obj.items(), key=self.sort_layout)) + "}"
def encode_list(self, obj, path):
"""Encode a list-like object.
"""
if self.primitives_only(obj):
return "[" + ", ".join(self.encode(value, path + [index]) for index, value in enumerate(obj)) + "]"
else:
self.indentation_level += 1
if path[-1] in ('layout', 'rotary'):
# These are part of a LED layout or encoder config, put them on a single line
output = [self.indent_str + self.encode_dict_single_line(value, path + [index]) for index, value in enumerate(obj)]
else:
output = [self.indent_str + self.encode(value, path + [index]) for index, value in enumerate(obj)]
self.indentation_level -= 1
return "[\n" + ",\n".join(output) + "\n" + self.indent_str + "]"
def encode(self, obj, path=[]):
"""Encode JSON objects for QMK.
"""
if isinstance(obj, Decimal):
return self.encode_decimal(obj)
elif isinstance(obj, (list, tuple)):
return self.encode_list(obj, path)
elif isinstance(obj, dict):
return self.encode_dict(obj, path)
else:
return super().encode(obj)
def primitives_only(self, obj):
"""Returns true if the object doesn't have any container type objects (list, tuple, dict).
"""
if isinstance(obj, dict):
obj = obj.values()
return not any(isinstance(element, self.container_types) for element in obj)
@property
def indent_str(self):
return self.indentation_char * (self.indentation_level * self.indent)
class InfoJSONEncoder(QMKJSONEncoder):
"""Custom encoder to make info.json's a little nicer to work with.
"""
def sort_layout(self, item):
"""Sorts the hashes in a nice way.
"""
key = item[0]
if key == 'label':
return '00label'
elif key == 'matrix':
return '01matrix'
elif key == 'x':
return '02x'
elif key == 'y':
return '03y'
elif key == 'w':
return '04w'
elif key == 'h':
return '05h'
elif key == 'flags':
return '06flags'
return key
def sort_dict(self, item):
"""Forces layout to the back of the sort order.
"""
key = item[0]
if self.indentation_level == 1:
if key == 'manufacturer':
return '10manufacturer'
elif key == 'keyboard_name':
return '11keyboard_name'
elif key == 'maintainer':
return '12maintainer'
elif key == 'community_layouts':
return '97community_layouts'
elif key == 'layout_aliases':
return '98layout_aliases'
elif key == 'layouts':
return '99layouts'
else:
return '50' + str(key)
return key
class KeymapJSONEncoder(QMKJSONEncoder):
"""Custom encoder to make keymap.json's a little nicer to work with.
"""
def encode_list(self, obj, path):
"""Encode a list-like object.
"""
if self.indentation_level == 2:
indent_level = self.indentation_level + 1
# We have a list of keycodes
layer = [[]]
for key in obj:
if key == 'JSON_NEWLINE':
layer.append([])
else:
if isinstance(key, dict):
# We have a macro
# TODO: Add proper support for nicely formatting keymap.json macros
layer[-1].append(f'{self.encode(key)}')
else:
layer[-1].append(f'"{key}"')
layer = [f"{self.indent_str*indent_level}{', '.join(row)}" for row in layer]
return f"{self.indent_str}[\n{newline.join(layer)}\n{self.indent_str*self.indentation_level}]"
elif self.primitives_only(obj):
return "[" + ", ".join(self.encode(element) for element in obj) + "]"
else:
self.indentation_level += 1
output = [self.indent_str + self.encode(element) for element in obj]
self.indentation_level -= 1
return "[\n" + ",\n".join(output) + "\n" + self.indent_str + "]"
def sort_dict(self, item):
"""Sorts the hashes in a nice way.
"""
key = item[0]
if self.indentation_level == 1:
if key == 'version':
return '00version'
elif key == 'author':
return '01author'
elif key == 'notes':
return '02notes'
elif key == 'layers':
return '98layers'
elif key == 'documentation':
return '99documentation'
else:
return '50' + str(key)
return key
class UserspaceJSONEncoder(QMKJSONEncoder):
"""Custom encoder to make userspace qmk.json's a little nicer to work with.
"""
def sort_dict(self, item):
"""Sorts the hashes in a nice way.
"""
key = item[0]
if self.indentation_level == 1:
if key == 'userspace_version':
return '00userspace_version'
if key == 'build_targets':
return '01build_targets'
return key