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
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
#![doc = include_str!("../README.md")]
use std::{
collections::HashMap,
env,
io::Read,
sync::{
mpsc::{self, Receiver, Sender},
Arc,
},
thread::{self, JoinHandle},
};
mod misc;
mod ui;
use clap::{ArgMatches, Command};
use misc::{AppInfo, ArgState};
use shh::{ShhStderr, ShhStdout};
pub use clap;
pub fn run<F: Fn(&ArgMatches) + Send + Sync + 'static>(
app: Command,
func: F,
) -> Result<(), eframe::Error> {
eframe::run_native(
app.clone().get_name(),
eframe::NativeOptions::default(),
Box::new(|_cc| Box::new(Claui::new(app, Arc::new(func)))),
)
}
type SharedFunction = Arc<dyn Fn(&ArgMatches) + Send + Sync + 'static>;
type SharedFunctionSender = Sender<(SharedFunction, ArgMatches)>;
type SharedFunctionReceiver = Receiver<(SharedFunction, ArgMatches)>;
struct Claui {
app: Box<Command>,
app_info: AppInfo,
shh: (ShhStdout, ShhStderr),
buffer: String,
func: SharedFunction,
func_handle: Option<Arc<JoinHandle<()>>>,
args: Vec<ArgState>,
ui_arg_state: HashMap<String, (bool, String)>,
}
impl Claui {
pub fn new(app: Command, func: SharedFunction) -> Self {
let app = Box::new(app);
let app_info = AppInfo::new(&app);
let mut args = Vec::new();
for arg in app.get_arguments() {
match arg.get_id().as_str() {
"version" => (),
"help" => (),
_ => args.push(ArgState::new(arg)),
}
}
let mut ui_arg_state = HashMap::new();
for arg in &args {
ui_arg_state.insert(arg.name.clone(), (false, String::new()));
}
Self {
app,
app_info,
shh: (shh::stdout().unwrap(), shh::stderr().unwrap()),
buffer: String::new(),
func,
func_handle: None,
args,
ui_arg_state,
}
}
fn update_buffer(&mut self) {
self.shh.0.read_to_string(&mut self.buffer).unwrap();
self.shh.1.read_to_string(&mut self.buffer).unwrap();
}
fn run(&mut self) {
self.buffer.clear();
let (sender, receiver): (SharedFunctionSender, SharedFunctionReceiver) = mpsc::channel();
let matches = match self.app.clone().try_get_matches_from(self.get_arg_output()) {
Ok(res) => res,
Err(err) => {
eprintln!("{err}");
return;
}
};
self.func_handle = Some(Arc::new(
thread::Builder::new()
.name(String::from("claui child"))
.spawn(move || {
let (func, matches) = receiver.recv().unwrap();
func(&matches);
})
.unwrap(),
));
sender.send((Arc::clone(&self.func), matches)).unwrap();
}
fn get_arg_output(&mut self) -> Vec<String> {
let mut res = Vec::new();
res.push(
env::current_exe()
.unwrap()
.as_path()
.to_str()
.unwrap()
.to_string(),
);
for arg in self.args.iter() {
if arg.takes_value {
let value = self
.ui_arg_state
.get(&arg.name.clone())
.unwrap()
.1
.to_owned();
if !value.is_empty() {
res.push(format!("--{}", arg.name));
res.push(value);
}
} else if self.ui_arg_state.get(&arg.name.clone()).unwrap().0 {
res.push(format!("--{}", arg.name));
}
}
res
}
fn update_thread_state(&mut self) {
if let Some(func_handle) = &self.func_handle {
if func_handle.is_finished() {
self.func_handle = None;
}
}
}
}