@thi.ng/file-io/hash.js

Assorted file I/O utils (w/ logging support) for NodeJS/Bun

import { createHash } from "node:crypto";
import { createReadStream } from "node:fs";
import { maskedPath } from "./mask.js";
const fileHash = async (path, logger, algo = "sha256") => {
  logger?.info("reading file:", maskedPath(path));
  return await streamHash(createReadStream(path), logger, algo);
};
const streamHash = async (src, logger, algo = "sha256") => {
  const sum = createHash(algo);
  for await (let chunk of src) sum.update(chunk);
  const hash = sum.digest("hex");
  logger?.info(`${algo} hash: ${hash}`);
  return hash;
};
const bufferHash = (src, logger, algo = "sha256") => {
  const hash = createHash(algo).update(src).digest("hex");
  logger?.info(`${algo} hash: ${hash}`);
  return hash;
};
export {
  bufferHash,
  fileHash,
  streamHash
};