port playtwitch to ocaml

scripts/playtwitch

@@ -1,18 +1,24 @@
-#!/bin/sh
+#!/usr/bin/env scriptisto
 
-# play a twitch stream using streamlink
+(*
+  scriptisto-begin
+  script_src: playtwitch.ml
+  build_cmd: dune build playtwitch.exe
+  target_bin: ./_build/default/playtwitch.exe
+  files:
+   - path: dune
+     content: (executable (name playtwitch) (libraries clap))
+  scriptisto-end
+*)
 
-__usage="
+Clap.description "play a twitch stream using streamlink";
-USAGE:
+let stream_name = Clap.mandatory_string ~placeholder:"stream_name" () in
-    $0 <stream_name> [quality]
+let quality = Clap.default_string ~placeholder:"quality" "best" in
+Clap.close ();
 
-ARGS:
+let stream_name = "https://twitch.tv/" ^ stream_name in
-    <stream_name>   Name of the stream to play
-    [quality]       quality to use [default: best]
-"
 
-if [ -z $1 ] || [ $# -gt 2 ] || [ $1 = "--help" ]; then
+let exit =
-    echo -e "$__usage"
+  String.concat " " [ "streamlink"; stream_name; quality ] |> Sys.command
-else
+in
-    streamlink https://twitch.tv/$1 ${2:-best}
+if exit != 0 then Stdlib.print_endline "streamlink crashed :("
-fi

scripts/sysupdate

@@ -27,7 +27,7 @@ let run cmd =
              (String.concat " "
                 [ "Command"; cmd; "exited with code"; string_of_int status ]))
   | _ ->
-      Stdlib.print_endline (String.concat " " [ "Command"; cmd; "not found." ])
+      String.concat " " [ "Command"; cmd; "not found." ] |> Stdlib.print_endline
 
 let () =
   Clap.description "Update the system";