env_logger/fmt/writer/
atty.rs

1/*
2This internal module contains the terminal detection implementation.
3
4If the `atty` crate is available then we use it to detect whether we're
5attached to a particular TTY. If the `atty` crate is not available we
6assume we're not attached to anything. This effectively prevents styles
7from being printed.
8*/
9
10#[cfg(feature = "atty")]
11mod imp {
12    pub(in crate::fmt) fn is_stdout() -> bool {
13        atty::is(atty::Stream::Stdout)
14    }
15
16    pub(in crate::fmt) fn is_stderr() -> bool {
17        atty::is(atty::Stream::Stderr)
18    }
19}
20
21#[cfg(not(feature = "atty"))]
22mod imp {
23    pub(in crate::fmt) fn is_stdout() -> bool {
24        false
25    }
26
27    pub(in crate::fmt) fn is_stderr() -> bool {
28        false
29    }
30}
31
32pub(in crate::fmt) use self::imp::*;