async _gzip()

in packages/azure-kusto-ingest/src/fileDescriptor.ts [41:62]

• 19 lines of code
• 1 McCabe index (conditional complexity)

    async _gzip(): Promise<string> {
        const { path, cleanup } = await tmpFile({ postfix: ".gz", keep: false });
        this.cleanupTmp = cleanup;

        const zipper = zlib.createGzip();
        const input = fs.createReadStream(this.file as string, { autoClose: true });
        const output = fs.createWriteStream(path);

        await new Promise((resolve, reject) => {
            input
                .pipe(zipper)
                .pipe(output)
                .on("error", (err) => {
                    reject(err);
                });
            output.once("close", () => {
                resolve(null);
            });
        });

        return path;
    }