bot-ci
8e7ead1669
Load business config as JSONC (comments + trailing commas) via an in-repo stripper then stdlib json — no new deps. Default path prefers config.jsonc, falls back to legacy config.json. Auth write-back targets only sibling secrets.json so JSONC comments are never wiped; secrets overlay merges on load. Examples, compose, Docker, docs, favsort and tools all share the same loader. Phase A only — no DB settings migration.
108 lines
2.9 KiB
Python
108 lines
2.9 KiB
Python
# -*- coding: utf-8 -*-
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"""JSONC（JSON with Comments）加载。
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选择**自研轻量剥离**而非引入第三方依赖：本仓库运行依赖目前只有 ``httpx``，
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配置加载属于启动/热更新热路径，JSONC 只需注释与尾逗号。实现按字符扫描，
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在字符串字面量内保留 ``//``、``/*``、引号转义，避免误伤。
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支持：
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- ``//`` 行注释、``/* ... */`` 块注释
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- 对象/数组中的尾逗号
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- UTF-8 BOM
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不支持 JSON5 扩展（无引号键、单引号、十六进制、``Infinity`` 等）。
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"""
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from __future__ import annotations
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import json
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from typing import Any
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def strip_jsonc(text: str) -> str:
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"""去掉 JSONC 注释与尾逗号，返回可交给 ``json.loads`` 的文本。"""
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if text.startswith("\ufeff"):
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text = text[1:]
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out: list[str] = []
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i = 0
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n = len(text)
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in_string = False
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escape = False
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while i < n:
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ch = text[i]
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if in_string:
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out.append(ch)
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if escape:
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escape = False
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elif ch == "\\":
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escape = True
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elif ch == '"':
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in_string = False
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i += 1
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continue
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if ch == '"':
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in_string = True
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out.append(ch)
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i += 1
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continue
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if ch == "/" and i + 1 < n:
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nxt = text[i + 1]
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if nxt == "/":
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i += 2
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while i < n and text[i] not in "\r\n":
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i += 1
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continue
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if nxt == "*":
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i += 2
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while i + 1 < n and not (text[i] == "*" and text[i + 1] == "/"):
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i += 1
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i = min(i + 2, n)
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continue
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out.append(ch)
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i += 1
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stripped = "".join(out)
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# 去掉尾逗号：`,}` / `,]`（可夹空白）
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cleaned: list[str] = []
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i = 0
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m = len(stripped)
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in_string = False
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escape = False
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while i < m:
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ch = stripped[i]
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if in_string:
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cleaned.append(ch)
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if escape:
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escape = False
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elif ch == "\\":
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escape = True
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elif ch == '"':
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in_string = False
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i += 1
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continue
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if ch == '"':
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in_string = True
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cleaned.append(ch)
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i += 1
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continue
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if ch == ",":
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j = i + 1
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while j < m and stripped[j] in " \t\r\n":
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j += 1
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if j < m and stripped[j] in "}]":
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i += 1
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continue
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cleaned.append(ch)
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i += 1
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return "".join(cleaned)
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def loads(text: str) -> Any:
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"""解析 JSONC 文本。"""
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return json.loads(strip_jsonc(text))
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def load(path: str | bytes, *, encoding: str = "utf-8") -> Any:
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"""从路径读取并解析 JSONC / JSON。"""
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with open(path, encoding=encoding) as fh:
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return loads(fh.read())
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