Shells in OCaml
Program completion
Basic program completion in interactive mode.
+19
-5
+19
-5
src/lib/interactive.ml
+19
-5
src/lib/interactive.ml
···
29
29
(Fpath.normalize @@ S.cwd state |> subst_tilde |> Fpath.to_string);
30
30
Format.flush_str_formatter ()
31
31
32
+
let resolve_programs name =
33
+
if not (String.contains name '/') then begin
34
+
Eunix.find_env "PATH"
35
+
|> Option.value ~default:"/bin:/usr/bin"
36
+
|> String.split_on_char ':'
37
+
|> List.concat_map (fun dir ->
38
+
let files = try Sys.readdir dir |> Array.to_list with _ -> [] in
39
+
List.filter (fun f -> String.starts_with ~prefix:name f) files)
40
+
end
41
+
else if Sys.file_exists name then [ name ]
42
+
else []
43
+
32
44
let complete path =
33
45
let rest, last_arg =
34
46
String.split_on_char ' ' path |> List.rev |> function
35
-
| [] -> ([], None)
36
-
| x :: rest -> (List.rev rest, Some x)
47
+
| [] -> ([], `None)
48
+
| [ prog ] -> ([], `Prog prog)
49
+
| x :: rest -> (List.rev rest, `Path x)
37
50
in
38
51
let completions from_path basename =
39
52
match (Unix.stat from_path).st_kind with
···
53
66
| exception Unix.Unix_error (Unix.ENOENT, _, _) -> []
54
67
in
55
68
match last_arg with
56
-
| None -> []
57
-
| Some path -> (
69
+
| `None -> []
70
+
| `Prog prog -> resolve_programs prog
71
+
| `Path path -> (
58
72
match Unix.(stat path).st_kind with
59
73
| exception Unix.Unix_error (Unix.ENOENT, _, _) ->
60
74
let dirname = Filename.dirname path in
···
87
101
match
88
102
Bruit.bruit
89
103
~history:(fun command -> H.history ~command !h |> H.commands)
90
-
~complete ""
104
+
~complete "% "
91
105
with
92
106
| String None ->
93
107
Fmt.pr "exit\n%!";