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main.ts: use fetch-retry, add retry/backoff to fetching installer

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Cole Mickens 2023-10-18 12:34:23 +02:00
parent e0fea1fb58
commit 58853de798
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3 changed files with 3364 additions and 7087 deletions
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10418
dist/index.js vendored
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2
dist/index.js.map vendored
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31
src/main.ts
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@ -5,12 +5,15 @@ import { spawn } from "node:child_process";
import { randomUUID } from "node:crypto";
import { join } from "node:path";
import { tmpdir } from "node:os";
import { pipeline } from "node:stream";
import fetch from "node-fetch";
import { promisify } from "node:util";
import stream from "node:stream";
import stream_web from "node:stream/web";
import { finished } from "node:stream/promises";
import fs from "node:fs";
import stringArgv from "string-argv";
import fetchRetry from "fetch-retry";
const retry_fetch = fetchRetry(global.fetch);
class NixInstallerAction {
platform: string;
nix_package_url: string | null;
@ -408,7 +411,17 @@ class NixInstallerAction {
private async fetch_binary(): Promise<string> {
if (!this.local_root) {
actions_core.info(`Fetching binary from ${this.nix_installer_url}`);
const response = await fetch(this.nix_installer_url);
const response = await retry_fetch(this.nix_installer_url, {
retries: 5,
retryDelay(
attempt: number,
_error: Error | null,
_response: Response | null,
) {
return Math.pow(2, attempt) * 1000; // 1000, 2000, 4000
},
});
if (!response.ok) {
throw new Error(
`Got a status of ${response.status} from \`${this.nix_installer_url}\`, expected a 200`,
@ -423,8 +436,14 @@ class NixInstallerAction {
}
if (response.body !== null) {
const streamPipeline = promisify(pipeline);
await streamPipeline(response.body, fs.createWriteStream(tempfile));
// shameless: https://stackoverflow.com/a/51302466
const fileStream = fs.createWriteStream(tempfile);
const responseBodyCast =
response.body as stream_web.ReadableStream<any>; // eslint-disable-line @typescript-eslint/no-explicit-any
await finished(
stream.Readable.fromWeb(responseBodyCast).pipe(fileStream),
);
actions_core.info(`Downloaded \`nix-installer\` to \`${tempfile}\``);
} else {
throw new Error("No response body recieved");