Function getDirectorySize

lib/models/files.ts:799–837

(path: string)

// NOTE: We're using `-h` (human readable) and parsing the output because that's more stable than `-B 1B` across different systems for a reliable byte size.
async function getDirectorySize(path: string): Promise<number> {
  try {
    const controller = new AbortController();
    const commandTimeout = setTimeout(() => controller.abort(), 5_000);

    const command = new Deno.Command(`du`, {
      args: [
        `-sh`,
        path,
      ],
      signal: controller.signal,
    });

    const { code, stdout, stderr } = await command.output();

    if (commandTimeout) {
      clearTimeout(commandTimeout);
    }

    if (code !== 0) {
      if (stderr) {
        throw new Error(new TextDecoder().decode(stderr));
      }

      throw new Error(`Unknown error running "du"`);
    }

    const output = new TextDecoder().decode(stdout);

    const value = output.split('\t')[0].trim();

    const number = Number.parseFloat(value.match(/\d+(\.\d+)?/)?.[0] || '0');
    const unit = value.match(/[A-Z]+/)?.[0] || 'B'.toUpperCase();

    return bytesFromHumanFileSize(`${number} ${unit}B`);
  } catch {
    return getDirectorySizeFallback(path);
  }
}