Function _streamDataToFile

src/utils/safeWriteJson.ts:202–221

* Helper function to stream JSON data to a file. * @param targetPath The path to write the stream to. * @param data The data to stream. * @param prettyPrint Whether to format the JSON with indentation. * @returns Promise

(targetPath: string, data: any, prettyPrint = false)

 * @returns Promise<void>
 */
async function _streamDataToFile(targetPath: string, data: any, prettyPrint = false): Promise<void> {
	// Stream data to avoid high memory usage for large JSON objects.
	const fileWriteStream = fsSync.createWriteStream(targetPath, { encoding: "utf8" })

	// JsonStreamStringify traverses the object and streams tokens directly
	// The 'spaces' parameter adds indentation during streaming, not via a separate pass
	// Convert undefined to null for valid JSON serialization (undefined is not valid JSON)
	const stringifyStream = new JsonStreamStringify(
		data === undefined ? null : data,
		undefined, // replacer
		prettyPrint ? "\t" : undefined, // spaces for indentation
	)

	return new Promise<void>((resolve, reject) => {
		stringifyStream.on("error", reject)
		fileWriteStream.on("error", reject)
		fileWriteStream.on("finish", resolve)
		stringifyStream.pipe(fileWriteStream)
	})
}

export { safeWriteJson }