43 lines
901 B
TypeScript
43 lines
901 B
TypeScript
import { base64, io } from "./deps.ts";
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const stdinLines = io.readLines(Deno.stdin);
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export function urlBase64Encode(data: ArrayBuffer) {
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return base64.encode(data)
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.replaceAll("+", "_")
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.replaceAll("/", "-")
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.replaceAll("=", "");
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}
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export function urlBase64Decode(data: string) {
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return base64.decode(
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data
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.replaceAll("_", "+")
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.replaceAll("-", "/"),
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);
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}
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export async function readline() {
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for await (const line of stdinLines) {
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if (line !== "") {
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return line;
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}
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}
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}
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type PromiseReturnType<T> = T extends () => Promise<infer R> ? R : never;
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export async function retry<F extends () => Promise<unknown>>(
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f: F,
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times = 2,
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): Promise<PromiseReturnType<F>> {
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let lastError;
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for (let i = 0; i < times; i++) {
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try {
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return await f() as PromiseReturnType<F>;
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} catch (e) {
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lastError = e;
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}
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}
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throw lastError;
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}
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