Function sourcePageCount

lib/gbrain-sources.ts:197–219

(id: string, env?: NodeJS.ProcessEnv)

 * variant selection.
 */
export function sourcePageCount(id: string, env?: NodeJS.ProcessEnv): number | null {
  let stdout: string;
  try {
    stdout = execFileSync("gbrain", ["sources", "list", "--json"], {
      encoding: "utf-8",
      timeout: 30_000,
      stdio: ["ignore", "pipe", "pipe"],
      env,
      shell: NEEDS_SHELL_ON_WINDOWS, // #1731: gbrain is a .cmd shim on Windows
    });
  } catch {
    return null;
  }

  try {
    const match = parseSourcesList(JSON.parse(stdout)).find((s) => s.id === id);
    if (!match) return null;
    if (typeof match.page_count !== "number") return null;
    return match.page_count;
  } catch {
    return null;
  }
}

/**
 * Whether a source's call graph has been built.