-
-
Notifications
You must be signed in to change notification settings - Fork 1k
/
value_hints.rs
107 lines (103 loc) · 3.13 KB
/
value_hints.rs
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
//! Example to test arguments with different ValueHint values.
//!
//! Usage with zsh:
//! ```sh
//! cargo run --example value_hints -- --generate=zsh > /usr/local/share/zsh/site-functions/_value_hints
//! compinit
//! ./target/debug/examples/value_hints --<TAB>
//! ```
//! fish:
//! ```sh
//! cargo run --example value_hints -- --generate=fish > value_hints.fish
//! . ./value_hints.fish
//! ./target/debug/examples/value_hints --<TAB>
//! ```
use clap::{App, Arg, ValueHint};
use clap_complete::{generate, Generator, Shell};
use std::io;
fn build_cli() -> App<'static> {
App::new("value_hints")
// AppSettings::TrailingVarArg is required to use ValueHint::CommandWithArguments
.trailing_var_arg(true)
.arg(
Arg::new("generator")
.long("generate")
.possible_values(Shell::possible_values()),
)
.arg(
Arg::new("unknown")
.long("unknown")
.value_hint(ValueHint::Unknown),
)
.arg(Arg::new("other").long("other").value_hint(ValueHint::Other))
.arg(
Arg::new("path")
.long("path")
.short('p')
.value_hint(ValueHint::AnyPath),
)
.arg(
Arg::new("file")
.long("file")
.short('f')
.value_hint(ValueHint::FilePath),
)
.arg(
Arg::new("dir")
.long("dir")
.short('d')
.value_hint(ValueHint::DirPath),
)
.arg(
Arg::new("exe")
.long("exe")
.short('e')
.value_hint(ValueHint::ExecutablePath),
)
.arg(
Arg::new("cmd_name")
.long("cmd-name")
.value_hint(ValueHint::CommandName),
)
.arg(
Arg::new("cmd")
.long("cmd")
.short('c')
.value_hint(ValueHint::CommandString),
)
.arg(
Arg::new("command_with_args")
.takes_value(true)
.multiple_values(true)
.value_hint(ValueHint::CommandWithArguments),
)
.arg(
Arg::new("user")
.short('u')
.long("user")
.value_hint(ValueHint::Username),
)
.arg(
Arg::new("host")
.short('h')
.long("host")
.value_hint(ValueHint::Hostname),
)
.arg(Arg::new("url").long("url").value_hint(ValueHint::Url))
.arg(
Arg::new("email")
.long("email")
.value_hint(ValueHint::EmailAddress),
)
}
fn print_completions<G: Generator>(gen: G, app: &mut App) {
generate(gen, app, app.get_name().to_string(), &mut io::stdout());
}
fn main() {
let matches = build_cli().get_matches();
if let Ok(generator) = matches.value_of_t::<Shell>("generator") {
let mut app = build_cli();
eprintln!("Generating completion file for {}...", generator);
print_completions(generator, &mut app);
}
}