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96 lines
3.1 KiB
96 lines
3.1 KiB
"""Class that pretty-prints QMK info.json files.
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"""
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import json
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from decimal import Decimal
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class InfoJSONEncoder(json.JSONEncoder):
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"""Custom encoder to make info.json's a little nicer to work with.
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"""
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container_types = (list, tuple, dict)
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indentation_char = " "
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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self.indentation_level = 0
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if not self.indent:
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self.indent = 4
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def encode(self, obj):
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"""Encode JSON objects for QMK.
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"""
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if isinstance(obj, Decimal):
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if obj == int(obj): # I can't believe Decimal objects don't have .is_integer()
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return int(obj)
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return float(obj)
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elif isinstance(obj, (list, tuple)):
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if self._primitives_only(obj):
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return "[" + ", ".join(self.encode(element) for element in obj) + "]"
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else:
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self.indentation_level += 1
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output = [self.indent_str + self.encode(element) for element in obj]
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self.indentation_level -= 1
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return "[\n" + ",\n".join(output) + "\n" + self.indent_str + "]"
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elif isinstance(obj, dict):
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if obj:
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if self.indentation_level == 4:
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# These are part of a layout, put them on a single line.
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return "{ " + ", ".join(f"{self.encode(key)}: {self.encode(element)}" for key, element in sorted(obj.items())) + " }"
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else:
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self.indentation_level += 1
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output = [self.indent_str + f"{json.dumps(key)}: {self.encode(value)}" for key, value in sorted(obj.items(), key=self.sort_root_dict)]
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self.indentation_level -= 1
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return "{\n" + ",\n".join(output) + "\n" + self.indent_str + "}"
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else:
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return "{}"
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else:
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return super().encode(obj)
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def _primitives_only(self, obj):
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"""Returns true if the object doesn't have any container type objects (list, tuple, dict).
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"""
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if isinstance(obj, dict):
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obj = obj.values()
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return not any(isinstance(element, self.container_types) for element in obj)
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def sort_root_dict(self, key):
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"""Forces layout to the back of the sort order.
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"""
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key = key[0]
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if self.indentation_level == 1:
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if key == 'manufacturer':
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return '10keyboard_name'
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elif key == 'keyboard_name':
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return '11keyboard_name'
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elif key == 'maintainer':
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return '12maintainer'
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elif key in ('height', 'width'):
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return '40' + str(key)
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elif key == 'community_layouts':
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return '97community_layouts'
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elif key == 'layout_aliases':
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return '98layout_aliases'
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elif key == 'layouts':
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return '99layouts'
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else:
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return '50' + str(key)
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return key
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@property
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def indent_str(self):
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return self.indentation_char * (self.indentation_level * self.indent)
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