Files
ical2rem/bin/main.ml
Paolo Donadeo cef6326289 feat(cli): add output control flags, sort order, and verbose mode
- Add `--verbose`/`-v` flag; gate all diagnostic stderr output behind it
- Add `--no-uuid`, `--no-source`, `--no-location`, `--no-description`,
  `--no-conference-url` flags to suppress individual INFO lines
- Add `--sort` option (`asc`, `desc`, `original`) replacing hardcoded
  descending sort
- Add `--source` option to override calendar name (single-file only)
- Introduce `Config` module with global `ref` flags set at startup from
  CLI args
- Add `Utils.warn` helper that writes to stderr only when
  `Config.verbose` is set
- Normalise all diagnostic messages to a consistent format (`Warning:
  ... (UID: ...)`)
- Remove `debug_print_of_recurrence_and_skip`; inline skip at each call
  site
- Fix `add_common_part` to always emit a trailing `\\\n    `
  continuation line
2026-06-20 00:19:54 +02:00

89 lines
3.7 KiB
OCaml

module Map = MoreLabels.Map.Make (String)
(*
We use a list of events here because there can be multiple events with the same UID, and we want to preserve all of
them. This is important for handling cases where there are multiple events with the same UID but different properties
(e.g., due to updates or recurring events or cancellations).
*)
let read_file filename =
let ic = open_in filename in
let n = in_channel_length ic in
let s = Bytes.create n in
really_input ic s 0 n;
close_in ic;
Bytes.unsafe_to_string s
let ical2rem (args : CommandLine.cli_args) ical_files =
(* Validate --source with multiple files *)
(match args.source with
| Some _ when List.length ical_files > 1 ->
Printf.eprintf "Error: --source can only be used with a single input file.\n";
exit 1
| _ -> ());
Config.verbose := args.verbose;
Config.no_uuid := args.no_uuid;
Config.no_source := args.no_source;
Config.no_location := args.no_location;
Config.no_description := args.no_description;
Config.no_conference_url := args.no_conference_url;
Utils.init_target_tz args.tz;
let good_rems =
ListLabels.fold_left ~init:[] ical_files ~f:(fun good_rems_acc filename ->
try
let file_content = read_file filename in
let basename =
match args.source with
| Some name -> name
| None -> Filename.remove_extension (Filename.basename filename)
in
match Icalendar.parse file_content with
| Error e ->
if e <> ": not enough input" then Utils.warn "Error: could not parse %s: %s\n" filename e;
good_rems_acc
| Ok (_, components) -> begin
let events_map : Icalendar.event list Map.t =
ListLabels.fold_left ~init:Map.empty components ~f:(fun acc comp ->
match comp with
| `Event ev ->
let uid = Utils.get_uid ev in
let event_list = Map.find_opt uid acc |> Option.value ~default:[] in
Map.add ~key:uid ~data:(ev :: event_list) acc
| _ -> acc (* Ignore non-event components *))
in
let events_map = Map.map ~f:List.rev events_map in
let good_rems =
Map.fold ~init:[] events_map ~f:(fun ~key:uid ~data:events good_rems ->
let rem_or_error = EventPredicates.remind_of_event basename events in
match rem_or_error with
| Ok rem -> rem :: good_rems
| Error (EventPredicates.Invalid_date s) ->
Utils.warn "Warning: invalid date: %s (UID: %s)\n" s uid;
good_rems
| Error Skip ->
Utils.warn "Warning: event skipped (UID: %s)\n" uid;
good_rems)
in
let good_rems = List.rev good_rems in
good_rems @ good_rems_acc
end
with e ->
Utils.warn "Error: could not read file %s: %s\n" filename (Printexc.to_string e);
good_rems_acc)
in
let good_rems =
match args.sort with
| CommandLine.Desc -> List.sort (fun a b -> Timedesc.Date.compare b.Remind.date a.Remind.date) good_rems
| CommandLine.Asc -> List.sort (fun a b -> Timedesc.Date.compare a.Remind.date b.Remind.date) good_rems
| CommandLine.Original -> good_rems
in
try ListLabels.iter good_rems ~f:(fun rem -> Printf.printf "%s" (Remind.string_of_rem rem))
with e ->
Printf.eprintf "Error processing reminders: %s\n" (Printexc.to_string e);
exit 1
let () = if !Sys.interactive then () else exit (CommandLine.main ical2rem)