85 lines
2.3 KiB
TypeScript
85 lines
2.3 KiB
TypeScript
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/**
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* 路径解析工具
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* 解决开发环境下路径解析问题
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*/
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import path from 'path';
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import fs from 'fs';
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import { fileURLToPath } from 'url';
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/**
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* 获取项目根目录
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* 通过从当前文件向上查找 package.json 来确定
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*/
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export function getProjectRoot(): string {
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// 在开发环境使用 tsx 时，使用 process.cwd()
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// 在构建后的环境，使用 __dirname 的方式
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let currentDir: string;
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try {
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// ESM 模式下获取当前文件目录
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const __filename = fileURLToPath(import.meta.url);
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currentDir = path.dirname(__filename);
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} catch {
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// 回退到 process.cwd()
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currentDir = process.cwd();
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}
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// Windows 路径处理（去除开头的 /）
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if (process.platform === 'win32' && currentDir.startsWith('/') && /^[a-zA-Z]:/.test(currentDir.slice(1))) {
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currentDir = currentDir.substring(1);
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}
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// 从当前目录向上查找 package.json
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let searchDir = currentDir;
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for (let i = 0; i < 10; i++) {
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const pkgPath = path.join(searchDir, 'package.json');
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if (fs.existsSync(pkgPath)) {
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return searchDir;
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}
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searchDir = path.dirname(searchDir);
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}
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// 如果找不到，回退到 process.cwd()
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return process.cwd();
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}
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/**
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* 获取上传目录的绝对路径
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*/
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export function getUploadsDir(): string {
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const projectRoot = getProjectRoot();
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return path.join(projectRoot, 'uploads');
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}
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/**
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* 解析图片路径
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* 将数据库中存储的路径 (/uploads/xxx.png) 解析为绝对路径
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*/
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export function resolveImagePath(imagePath: string): string {
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// 在 Windows 上，path.isAbsolute 会将 /uploads/... 认为是绝对路径
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// 但这实际上是 Unix 风格的相对路径，需要特殊处理
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const isWindowsAbsPath = process.platform === 'win32'
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? /^[a-zA-Z]:\\/.test(imagePath) // Windows 真正的绝对路径如 C:\
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: path.isAbsolute(imagePath);
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if (isWindowsAbsPath) {
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return imagePath;
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}
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// 处理 /uploads/ 开头的相对路径
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if (imagePath.startsWith('/uploads/')) {
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return path.join(getUploadsDir(), imagePath.replace('/uploads/', ''));
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}
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// 其他相对路径，使用项目根目录
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return path.join(getProjectRoot(), imagePath);
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}
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/**
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* 生成存储到数据库的路径
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*/
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export function generateDbPath(filename: string): string {
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return `/uploads/${filename}`;
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}
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