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Perf: use Bun.peek() to save a few ticks

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SukkaW
2024-01-28 22:29:14 +08:00
parent c95e96fc61
commit e626a6b5d2
13 changed files with 108 additions and 47 deletions
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10
Build/build-apple-cdn.ts
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@@ -5,9 +5,9 @@ import { parseFelixDnsmasq } from './lib/parse-dnsmasq';
import { task } from './trace';
import { SHARED_DESCRIPTION } from './lib/constants';
import { createMemoizedPromise } from './lib/memo-promise';
import { TTL, deserializeArray, fsCache, serializeArray } from './lib/cache-filesystem';
import { TTL, deserializeArray, fsFetchCache, serializeArray } from './lib/cache-filesystem';
export const getAppleCdnDomainsPromise = createMemoizedPromise(() => fsCache.apply(
export const getAppleCdnDomainsPromise = createMemoizedPromise(() => fsFetchCache.apply(
'https://raw.githubusercontent.com/felixonmars/dnsmasq-china-list/master/apple.china.conf',
() => parseFelixDnsmasq('https://raw.githubusercontent.com/felixonmars/dnsmasq-china-list/master/apple.china.conf'),
{
@@ -18,7 +18,11 @@ export const getAppleCdnDomainsPromise = createMemoizedPromise(() => fsCache.app
));
export const buildAppleCdn = task(import.meta.path, async (span) => {
const res = await span.traceChild('get apple cdn domains').traceAsyncFn(getAppleCdnDomainsPromise);
const promise = getAppleCdnDomainsPromise();
const peeked = Bun.peek(promise);
const res: string[] = peeked === promise
? await span.traceChild('get apple cdn domains').traceAsyncFn(() => promise)
: (peeked as string[]);
const description = [
...SHARED_DESCRIPTION,