118 lines
3.3 KiB
TypeScript
118 lines
3.3 KiB
TypeScript
import { createServerFn } from "@tanstack/react-start";
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import websitePackage from "../package.json";
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interface GitHubAsset {
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name: string;
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}
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interface GitHubRelease {
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tag_name: string;
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assets: GitHubAsset[];
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prerelease: boolean;
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draft: boolean;
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}
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const REQUIRED_ASSET_PATTERNS = [
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/Paseo-.*-arm64\.dmg$/, // Mac Apple Silicon
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/Paseo-.*-x86_64\.AppImage$/, // Linux AppImage
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/Paseo-Setup-.*\.exe$/, // Windows (any arch)
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];
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function hasRequiredAssets(release: GitHubRelease): boolean {
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return REQUIRED_ASSET_PATTERNS.every((pattern) =>
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release.assets.some((asset) => pattern.test(asset.name)),
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);
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}
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function pickWindowsAssets(assets: GitHubAsset[]) {
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const x64Suffixed = assets.find((a) => /Paseo-Setup-.*-x64\.exe$/.test(a.name));
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const arm64 = assets.find((a) => /Paseo-Setup-.*-arm64\.exe$/.test(a.name));
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const legacy = assets.find(
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(a) =>
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/Paseo-Setup-.*\.exe$/.test(a.name) &&
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!a.name.endsWith("-x64.exe") &&
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!a.name.endsWith("-arm64.exe"),
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);
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return {
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x64: (x64Suffixed ?? legacy)?.name ?? null,
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arm64: arm64?.name ?? null,
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};
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}
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function versionFromTag(tag: string): string {
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return tag.replace(/^v/, "");
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}
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interface ReleaseInfo {
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version: string;
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windowsX64Asset: string | null;
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windowsArm64Asset: string | null;
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}
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const fallbackVersion = websitePackage.version.replace(/-.*$/, "");
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const fallbackRelease: ReleaseInfo = {
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version: fallbackVersion,
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windowsX64Asset: `Paseo-Setup-${fallbackVersion}.exe`,
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windowsArm64Asset: null,
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};
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const GITHUB_RELEASES_URL = "https://api.github.com/repos/getpaseo/paseo/releases?per_page=10";
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const RELEASE_REFRESH_MS = 60_000;
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let cachedRelease = fallbackRelease;
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let cachedReleaseAt = 0;
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let refreshReleasePromise: Promise<void> | null = null;
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async function fetchLatestReadyRelease(): Promise<ReleaseInfo> {
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try {
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const res = await fetch(GITHUB_RELEASES_URL, {
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headers: {
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Accept: "application/vnd.github+json",
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"User-Agent": "paseo-website",
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},
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// Cloudflare Workers: cache the upstream response with stale-while-revalidate.
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// Fresh for 60s, serve stale for up to 300s while revalidating in background.
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// In non-Workers environments this is ignored.
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cf: {
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cacheEverything: true,
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cacheTtl: 60,
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cacheKey: "github-releases-latest",
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},
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} as RequestInit);
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if (!res.ok) return fallbackRelease;
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const releases = (await res.json()) as GitHubRelease[];
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const ready = releases.find((r) => !r.prerelease && !r.draft && hasRequiredAssets(r));
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if (!ready) return fallbackRelease;
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const win = pickWindowsAssets(ready.assets);
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return {
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version: versionFromTag(ready.tag_name),
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windowsX64Asset: win.x64,
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windowsArm64Asset: win.arm64,
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};
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} catch {
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return fallbackRelease;
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}
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}
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function refreshLatestRelease(): Promise<void> {
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refreshReleasePromise ??= fetchLatestReadyRelease()
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.then((release) => {
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cachedRelease = release;
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cachedReleaseAt = Date.now();
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return undefined;
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})
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.finally(() => {
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refreshReleasePromise = null;
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});
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return refreshReleasePromise;
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}
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export const getLatestRelease = createServerFn({ method: "GET" }).handler(async () => {
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if (Date.now() - cachedReleaseAt > RELEASE_REFRESH_MS) {
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void refreshLatestRelease();
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}
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return cachedRelease;
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});
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