76 lines
2.5 KiB
JavaScript
76 lines
2.5 KiB
JavaScript
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import fs from 'node:fs';
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import os from 'node:os';
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import path from 'node:path';
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// CLI 配置文件读写：默认值、点号路径访问与类型解析。
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export const DEFAULT_CONFIG = Object.freeze({
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port: 5173,
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host: '127.0.0.1',
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autoOpenBrowser: true,
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adapter: 'mock',
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});
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export function defaultConfigPath() {
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return path.join(os.homedir(), '.chusql', 'config.json');
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}
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export function readConfig(file = defaultConfigPath()) {
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if (!fs.existsSync(file)) {
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writeConfig(file, DEFAULT_CONFIG);
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return { ...DEFAULT_CONFIG };
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}
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let parsed;
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try {
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parsed = JSON.parse(fs.readFileSync(file, 'utf8'));
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} catch {
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throw new Error(`Configuration file is not valid JSON: ${file}`);
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}
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if (!parsed || typeof parsed !== 'object' || Array.isArray(parsed)) throw new Error(`Configuration must be a JSON object: ${file}`);
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return { ...DEFAULT_CONFIG, ...parsed };
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}
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export function writeConfig(file, value) {
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fs.mkdirSync(path.dirname(path.resolve(file)), { recursive: true });
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fs.writeFileSync(file, `${JSON.stringify(value, null, 2)}\n`, 'utf8');
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}
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export function parseConfigValue(raw) {
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if (/^-?\d+(?:\.\d+)?$/.test(raw)) return Number(raw);
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if (raw === 'true') return true;
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if (raw === 'false') return false;
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return raw;
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}
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const FORBIDDEN_PATH_PARTS = new Set(['__proto__', 'prototype', 'constructor']);
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function configPathParts(dottedPath) {
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const parts = dottedPath.split('.').filter(Boolean);
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if (!parts.length) throw new Error('Configuration key must not be empty.');
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if (parts.some((part) => FORBIDDEN_PATH_PARTS.has(part))) throw new Error('Configuration key contains a forbidden path segment.');
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return parts;
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}
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export function getAtPath(value, dottedPath) {
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return configPathParts(dottedPath).reduce((current, part) => current && typeof current === 'object' ? current[part] : undefined, value);
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}
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export function setAtPath(value, dottedPath, nextValue) {
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const parts = configPathParts(dottedPath);
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let cursor = value;
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for (const part of parts.slice(0, -1)) {
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if (!cursor[part] || typeof cursor[part] !== 'object' || Array.isArray(cursor[part])) cursor[part] = {};
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cursor = cursor[part];
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}
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cursor[parts.at(-1)] = nextValue;
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}
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export function unsetAtPath(value, dottedPath) {
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const parts = configPathParts(dottedPath);
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let cursor = value;
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for (const part of parts.slice(0, -1)) {
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if (!cursor[part] || typeof cursor[part] !== 'object') return false;
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cursor = cursor[part];
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}
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return parts.length ? delete cursor[parts.at(-1)] : false;
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}
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