ligo/src/client_main.ml

99 lines
3.6 KiB
OCaml

(**************************************************************************)
(* *)
(* Copyright (c) 2014 - 2016. *)
(* Dynamic Ledger Solutions, Inc. <contact@tezos.com> *)
(* *)
(* All rights reserved. No warranty, explicit or implicit, provided. *)
(* *)
(**************************************************************************)
(* Tezos Command line interface - Main Program *)
open Lwt.Infix
let cctxt =
(* TODO: set config as parameter? *)
let config = Client_commands.default_cfg in
let startup =
CalendarLib.Printer.Precise_Calendar.sprint
"%Y-%m-%dT%H:%M:%SZ"
(CalendarLib.Calendar.Precise.now ()) in
let log channel msg = match channel with
| "stdout" ->
print_endline msg ;
Lwt.return ()
| "stderr" ->
prerr_endline msg ;
Lwt.return ()
| log ->
let (//) = Filename.concat in
Lwt_utils.create_dir (config.base_dir // "logs" // log) >>= fun () ->
Lwt_io.with_file
~flags: Unix.[ O_APPEND ; O_CREAT ; O_WRONLY ]
~mode: Lwt_io.Output
Client_commands.(config.base_dir // "logs" // log // startup)
(fun chan -> Lwt_io.write chan msg) in
Client_commands.make_context log
(* Main (lwt) entry *)
let main () =
Random.self_init () ;
Sodium.Random.stir () ;
Lwt.catch begin fun () ->
Client_config.preparse_args Sys.argv cctxt >>= fun config ->
let cctxt = { cctxt with config } in
Lwt.catch begin fun () ->
Client_node_rpcs.Blocks.protocol cctxt cctxt.config.block >>= fun version ->
Lwt.return (Some version, Client_commands.commands_for_version version)
end begin fun exn ->
cctxt.warning
"Failed to acquire the protocol version from the node: %s."
(match exn with
| Failure msg -> msg
| exn -> Printexc.to_string exn) >>= fun () ->
Lwt.return (None, [])
end >>= fun (_version, commands_for_version) ->
let commands =
Client_generic_rpcs.commands @
Client_network.commands () @
Client_keys.commands () @
Client_protocols.commands () @
Client_helpers.commands () @
commands_for_version in
Client_config.parse_args
(Cli_entries.usage ~commands)
(Cli_entries.inline_dispatch commands)
Sys.argv cctxt >>= fun (command, config) ->
command { cctxt with config } >>= fun () ->
Lwt.return 0
end begin function
| Arg.Help help ->
Format.printf "%s%!" help ;
Lwt.return 0
| Arg.Bad help ->
Format.eprintf "%s%!" help ;
Lwt.return 1
| Cli_entries.Command_not_found ->
Format.eprintf "Unknown command, try `-help`.\n%!" ;
Lwt.return 1
| Client_commands.Version_not_found ->
Format.eprintf "Unknown protocol version, try `list versions`.\n%!" ;
Lwt.return 1
| Cli_entries.Bad_argument (idx, _n, v) ->
Format.eprintf "There's a problem with argument %d, %s.\n%!" idx v ;
Lwt.return 1
| Cli_entries.Command_failed message ->
Format.eprintf "Command failed, %s.\n%!" message ;
Lwt.return 1
| Failure message ->
Format.eprintf "Fatal error: %s\n%!" message ;
Lwt.return 1
| exn ->
Format.printf "Fatal internal error: %s\n%!"
(Printexc.to_string exn) ;
Lwt.return 1
end
(* Where all the user friendliness starts *)
let () = Pervasives.exit (Lwt_main.run (main ()))