@cspell/cspell-tools/dist/shasum/checksum.js

Tools to assist with the development of cSpell

import { createHash } from 'node:crypto';
import { readFile } from 'node:fs/promises';
export function calcChecksum(buf, alg = 'SHA1') {
    const hash = createHash(alg);
    hash.update(buf);
    return hash.digest('hex');
}
export function checkChecksum(checksum, buf, alg) {
    const value = calcChecksum(buf, alg);
    return value === checksum;
}
export async function calcFileChecksum(filename, alg) {
    const buf = await readFile(filename);
    return calcChecksum(buf, alg);
}
export async function checkFile(checksum, filename, alg) {
    return (await calcFileChecksum(filename, alg)) === checksum;
}
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