HexDocs MCP

defmodule HexdocsMcp.Application do @moduledoc false use Application @impl true def start(_type, _args) do ensure_sqlite_vec_available() children = [ {HexdocsMcp.Repo, load_extensions: [sqlite_vec_extension_path()], database: HexdocsMcp.Config.database()} ] opts = [strategy: :one_for_one, name: HexdocsMcp.Supervisor] Supervisor.start_link(children, opts) end defp ensure_sqlite_vec_available do version = SqliteVec.Downloader.default_version() output_dir = sqlite_vec_dir(version) File.mkdir_p!(output_dir) case SqliteVec.download(output_dir, version) do :skip -> :ok {:ok, _, []} -> :ok {:ok, _, failed_files} -> raise "Failed to download: #{Enum.join(failed_files, ", ")}" {:error, message} -> raise message end end defp sqlite_vec_extension_path do version = SqliteVec.Downloader.default_version() Path.join(sqlite_vec_dir(version), "vec0") end defp sqlite_vec_dir(version) do Path.join([HexdocsMcp.Config.data_path(), "sqlite_vec", version]) end end