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respond to SIGUSR1 by reloading config (#3952) 

* respond to SIGUSR1 by reloading config

* document USR1 signal handling
pull/4085/head
Karsten Gebbert 2022-10-03 17:08:32 +02:00 committed by GitHub
parent 3d59d3f8be
commit 9124c231f4
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2 changed files with 10 additions and 2 deletions
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4
book/src/configuration.md
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@ -28,6 +28,10 @@ hidden = false
You may also specify a file to use for configuration with the `-c` or You may also specify a file to use for configuration with the `-c` or
`--config` CLI argument: `hx -c path/to/custom-config.toml`. `--config` CLI argument: `hx -c path/to/custom-config.toml`.
It is also possible to trigger configuration file reloading by sending the `USR1`
signal to the helix process, e.g. via `pkill -USR1 hx`. This is only supported
on unix operating systems.
## Editor ## Editor
### `[editor]` Section ### `[editor]` Section

8
helix-term/src/application.rs
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@ -224,8 +224,8 @@ impl Application {
#[cfg(windows)] #[cfg(windows)]
let signals = futures_util::stream::empty(); let signals = futures_util::stream::empty();
#[cfg(not(windows))] #[cfg(not(windows))]
let signals = let signals = Signals::new(&[signal::SIGTSTP, signal::SIGCONT, signal::SIGUSR1])
Signals::new(&[signal::SIGTSTP, signal::SIGCONT]).context("build signal handler")?; .context("build signal handler")?;
let app = Self { let app = Self {
compositor, compositor,
@ -426,6 +426,10 @@ impl Application {
self.compositor.load_cursor(); self.compositor.load_cursor();
self.render(); self.render();
} }
signal::SIGUSR1 => {
self.refresh_config();
self.render();
}
_ => unreachable!(), _ => unreachable!(),
} }
} }