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
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
use async_process::unix::CommandExt as _;
pub struct Command {
inner: async_process::Command,
stdin: bool,
stdout: bool,
stderr: bool,
pre_exec_set: bool,
pre_exec: Option<
Box<dyn FnMut() -> std::io::Result<()> + Send + Sync + 'static>,
>,
}
impl Command {
pub fn new<S: AsRef<std::ffi::OsStr>>(program: S) -> Self {
Self {
inner: async_process::Command::new(program),
stdin: false,
stdout: false,
stderr: false,
pre_exec_set: false,
pre_exec: None,
}
}
pub fn arg<S: AsRef<std::ffi::OsStr>>(&mut self, arg: S) -> &mut Self {
self.inner.arg(arg);
self
}
pub fn args<I, S>(&mut self, args: I) -> &mut Self
where
I: IntoIterator<Item = S>,
S: AsRef<std::ffi::OsStr>,
{
self.inner.args(args);
self
}
pub fn env<K, V>(&mut self, key: K, val: V) -> &mut Self
where
K: AsRef<std::ffi::OsStr>,
V: AsRef<std::ffi::OsStr>,
{
self.inner.env(key, val);
self
}
pub fn envs<I, K, V>(&mut self, vars: I) -> &mut Self
where
I: IntoIterator<Item = (K, V)>,
K: AsRef<std::ffi::OsStr>,
V: AsRef<std::ffi::OsStr>,
{
self.inner.envs(vars);
self
}
pub fn env_remove<K: AsRef<std::ffi::OsStr>>(
&mut self,
key: K,
) -> &mut Self {
self.inner.env_remove(key);
self
}
pub fn env_clear(&mut self) -> &mut Self {
self.inner.env_clear();
self
}
pub fn current_dir<P: AsRef<std::path::Path>>(
&mut self,
dir: P,
) -> &mut Self {
self.inner.current_dir(dir);
self
}
pub fn stdin<T: Into<std::process::Stdio>>(
&mut self,
cfg: T,
) -> &mut Self {
self.stdin = true;
self.inner.stdin(cfg);
self
}
pub fn stdout<T: Into<std::process::Stdio>>(
&mut self,
cfg: T,
) -> &mut Self {
self.stdout = true;
self.inner.stdout(cfg);
self
}
pub fn stderr<T: Into<std::process::Stdio>>(
&mut self,
cfg: T,
) -> &mut Self {
self.stderr = true;
self.inner.stderr(cfg);
self
}
pub fn spawn(
&mut self,
pty: &crate::Pty,
) -> crate::Result<async_process::Child> {
let pts = pty.pts();
let (stdin, stdout, stderr) = crate::sys::setup_subprocess(pts)?;
if !self.stdin {
self.inner.stdin(stdin);
}
if !self.stdout {
self.inner.stdout(stdout);
}
if !self.stderr {
self.inner.stderr(stderr);
}
let mut session_leader = crate::sys::session_leader(pts);
// Safety: setsid() is an async-signal-safe function and ioctl() is a
// raw syscall (which is inherently async-signal-safe).
if let Some(mut custom) = self.pre_exec.take() {
unsafe {
self.inner.pre_exec(move || {
session_leader()?;
custom()?;
Ok(())
})
};
} else if !self.pre_exec_set {
unsafe { self.inner.pre_exec(session_leader) };
}
self.pre_exec_set = true;
Ok(self.inner.spawn()?)
}
pub fn uid(&mut self, id: u32) -> &mut Self {
self.inner.uid(id);
self
}
pub fn gid(&mut self, id: u32) -> &mut Self {
self.inner.gid(id);
self
}
pub unsafe fn pre_exec<F>(&mut self, f: F) -> &mut Self
where
F: FnMut() -> std::io::Result<()> + Send + Sync + 'static,
{
self.pre_exec = Some(Box::new(f));
self
}
pub fn arg0<S>(&mut self, arg: S) -> &mut Self
where
S: AsRef<std::ffi::OsStr>,
{
self.inner.arg0(arg);
self
}
}
|
