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Hornwitser
2e48b728dd
These packages are obsoleted by the promises API to the built-in Node fs module. The fs-extra package is also causing problems with broken APIs that don't behave the same as Node's fs module, and throwing errors without code properties on them.
41 lines
974 B
TypeScript
41 lines
974 B
TypeScript
/**
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* Hashing functions
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* @module lib/hash
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*/
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import crypto from "crypto";
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import fs from "node:fs/promises";
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/**
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* Returns a promise that resolves to the SHA1 hash of the stream given
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*
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* @param stream - Node stream of the content to hash.
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* @returns hash of the stream.
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*/
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export function hashStream(stream: NodeJS.ReadableStream): Promise<string> {
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return new Promise((resolve, reject) => {
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let hasher = crypto.createHash("sha1");
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hasher.setEncoding("hex");
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hasher.on("finish", () => {
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resolve(hasher.read());
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});
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stream.on("error", (error) => {
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// the docs doesn't say anything about what's passed on error
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reject(error);
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});
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stream.pipe(hasher);
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});
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}
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/**
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* Returns a promise that resolves to the SHA1 hash of the file given by path
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*
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* @param path - Path to the file to hash.
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* @returns hash of the file given.
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*/
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export async function hashFile(path: string) {
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return hashStream((await fs.open(path)).createReadStream());
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}
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