24 lines
707 B
TypeScript
24 lines
707 B
TypeScript
import untar, { TarFile } from 'js-untar';
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const unpackTar = (data: Uint8Array): Promise<TarFile[]> => {
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const isTar = true;
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// tarball ustar starts from 257, 75 73 74 61 72, but this is getting lost here for some reason
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// so we rely on try catch
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// data[257] === 0x75 &&
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// data[258] === 0x73 &&
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// data[259] === 0x74 &&
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// data[260] === 0x61 &&
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// data[261] === 0x72 &&
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// data[262] === 0x00;
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if (isTar) {
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const now = performance.now();
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return untar(data.buffer).then((files) => {
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console.debug('Tar unpack time', `${Math.floor(performance.now() - now)}ms`);
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return files;
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});
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}
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return Promise.reject('Not a tarball file');
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};
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export default unpackTar;
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