Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
30 lines
1009 B
JavaScript
30 lines
1009 B
JavaScript
import { symlinkSync, lstatSync, existsSync } from 'node:fs';
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import { resolve } from 'node:path';
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import { platform } from 'node:process';
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// Windows 用 junction(免管理员、仅限目录);其它平台用 dir 符号链接
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const LINK_TYPE = platform === 'win32' ? 'junction' : 'dir';
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export function isLink(p) {
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try {
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return lstatSync(p).isSymbolicLink();
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} catch {
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return false;
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}
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}
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// 在 linkPath 建一个指向 targetPath 的目录链接。
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// 返回 'created' | 'exists';目标不存在或 linkPath 已被真实文件占用则抛错。
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export function ensureJunction(linkPath, targetPath) {
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const target = resolve(targetPath); // junction 要求绝对目标
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if (!existsSync(target)) {
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throw new Error(`junction target 不存在: ${target}`);
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}
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if (isLink(linkPath)) return 'exists';
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if (existsSync(linkPath)) {
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throw new Error(`路径已存在且非链接,拒绝覆盖: ${linkPath}`);
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}
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symlinkSync(target, linkPath, LINK_TYPE);
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return 'created';
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}
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