33 lines
1.4 KiB
TypeScript
33 lines
1.4 KiB
TypeScript
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import * as os from 'os';
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import * as nodePath from 'path';
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import downloadUrlContents from './downloadUrlContents';
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import downloadWithCurl from './downloadWithCurl';
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import checkLocalCache from './funcs/checkLocalCache';
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import createDirRecursively from './funcs/createDirRecursively';
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/** Downloads the given URL and saves it to disk. Returns the location where file is saved under. Throws error if download fails. */
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export default function downloadWrapper({ host, path, size, useCurl = false }: {host: string, path: string, size: number, useCurl: boolean}): Promise<string> {
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return new Promise((resolve, reject) => {
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//Generate file name we want to save it under
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//e.g. on Linux: /tmp/patcher/patch/assets_swtor_main/assets_swtor_main_-1to0/assets_swtor_main_-1to0.zip
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const tempFileName = nodePath.join(os.tmpdir(), 'patcher', host, path);
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//Create parent directory recursively
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const folderName = nodePath.dirname(tempFileName);
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createDirRecursively(folderName).then(() => {
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//Check if file already exists locally
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checkLocalCache(tempFileName, size).then((cacheStatus) => {
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if (cacheStatus) {
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return resolve(tempFileName);
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}
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if (useCurl) {
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downloadWithCurl({ host, path, tempFileName, size, resolve, reject });
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} else {
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downloadUrlContents(host, path, tempFileName, resolve, reject);
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}
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});
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});
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});
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}
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