101 lines
3.1 KiB
JavaScript
101 lines
3.1 KiB
JavaScript
// utils/fetch.mjs
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/** @typedef {import('@octokit/types').Endpoints['GET /repos/{owner}/{repo}/commits']['response']['data']} CommitsData */
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import fetch from 'node-fetch';
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import * as dotenv from 'dotenv';
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import { toYYYYMMDD } from './date.mjs';
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dotenv.config({ path: '../.env', quiet: true });
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/**
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* 获取远程文件真实大小.
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*
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* @param {string} url
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* @param {{timeout?: number}} [options]
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* @returns {Promise<number | null>}
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*/
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export async function getRemoteFileSizeBytes(url, { timeout = 30000 } = {}) {
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const headers = {
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'user-agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124 Safari/537.36',
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'accept': '*/*',
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};
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// 1) 尝试 HEAD
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try {
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const res = await fetch(url, {
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method: 'HEAD',
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redirect: 'follow',
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headers,
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});
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if (res.ok) {
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const len = res.headers.get('content-length');
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if (len && /^\d+$/.test(len)) return Number(len);
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}
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} catch (_) {
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/* Ignored. */
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}
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// 2) 尝试 Range GET (bytes=0-0), 从 Content-Range 解析总长度
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try {
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const ac = new AbortController();
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const t = setTimeout(() => ac.abort(), timeout);
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const res = await fetch(url, {
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method: 'GET',
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redirect: 'follow',
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headers: { ...headers, range: 'bytes=0-0' },
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signal: ac.signal,
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}).finally(() => clearTimeout(t));
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if (res.ok || res.status === 206) {
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// Content-Range: bytes 0-0/123456789
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const cr = res.headers.get('content-range');
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if (cr) {
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const m = /bytes\s+\d+-\d+\/(\d+)/i.exec(cr);
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if (m) return Number(m[1]);
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}
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// 退化: 仍然尝试 content-length
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const len = res.headers.get('content-length');
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if (len && /^\d+$/.test(len)) return Number(len);
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}
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} catch (_) {
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/* Ignored. */
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}
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return null;
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}
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/**
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* @param {string} owner
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* @param {string} repo
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* @return {Promise<string>}
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*/
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export async function getLatestCommitDate(owner, repo) {
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const token = process.env.GITHUB_TOKEN; // 可选：避免频繁请求受限
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const url = `https://api.github.com/repos/${owner}/${repo}/commits?per_page=1`;
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/** @type {import('node-fetch').HeadersInit} */
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const headers = {
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accept: 'application/vnd.github+json',
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'user-agent': 'repo-last-commit-script',
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...(token ? { authorization: `Bearer ${token}` } : {}),
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};
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const res = await fetch(url, { headers });
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if (!res.ok) {
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throw new Error(`GitHub API 请求失败: ${res.status} ${res.statusText}`);
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}
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const data = /** @type {CommitsData} */ await res.json();
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const latest = Array.isArray(data) ? data[0] : null;
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if (!latest?.commit) throw new Error('未获取到最新提交');
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// 优先使用 committer 的提交时间，fallback 到 author
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const iso = latest.commit.committer?.date ?? latest.commit.author?.date;
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if (!iso) throw new Error('提交对象缺少日期字段');
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return toYYYYMMDD(iso);
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}
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