jake/careful-downloader
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go back to simultaneously downloading the desired file and its checksums

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This commit is contained in:
Jake Jarvis 2021-10-16 06:19:20 -04:00
parent 249b0605f0
commit 97315225c1
Signed by: jake
GPG Key ID: 2B0C9CF251E69A39
1 changed files with 11 additions and 4 deletions
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15
index.js
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@ -47,9 +47,6 @@ export default async (downloadUrl, options = {}) => {
debug(`Temp dir generated: '${tempDir}'`); debug(`Temp dir generated: '${tempDir}'`);
try { try {
// get the desired file
await download(downloadUrl, path.join(tempDir, options.filename));
// validate the checksum of the download // validate the checksum of the download
let validated = false; let validated = false;
@ -57,8 +54,14 @@ export default async (downloadUrl, options = {}) => {
debug("Using a downloaded checksum file to validate..."); debug("Using a downloaded checksum file to validate...");
const checksumFilename = new URL(checksumKey).pathname.split("/").pop(); const checksumFilename = new URL(checksumKey).pathname.split("/").pop();
await download(checksumKey, path.join(tempDir, checksumFilename));
// simultaneously download the desired file and its checksums
await Promise.all([
download(downloadUrl, path.join(tempDir, options.filename)),
download(checksumKey, path.join(tempDir, checksumFilename)),
]);
// validate the checksum
// eslint-disable-next-line max-len // eslint-disable-next-line max-len
if (await checksumViaFile(path.join(tempDir, options.filename), path.join(tempDir, checksumFilename), options.algorithm, options.encoding)) { if (await checksumViaFile(path.join(tempDir, options.filename), path.join(tempDir, checksumFilename), options.algorithm, options.encoding)) {
validated = true; validated = true;
@ -66,6 +69,10 @@ export default async (downloadUrl, options = {}) => {
} else if (checksumMethod === "string") { } else if (checksumMethod === "string") {
debug("Using a provided hash to validate..."); debug("Using a provided hash to validate...");
// get the desired file
await download(downloadUrl, path.join(tempDir, options.filename));
// validate the checksum
// eslint-disable-next-line max-len // eslint-disable-next-line max-len
if (await checksumViaString(path.join(tempDir, options.filename), checksumKey, options.algorithm, options.encoding)) { if (await checksumViaString(path.join(tempDir, options.filename), checksumKey, options.algorithm, options.encoding)) {
validated = true; validated = true;