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use std::ffi::OsStr;
use std::io;
use std::os::unix::process::CommandExt;
use std::path::PathBuf;
use std::process::{Command, Stdio};
use std::time::Duration;
use anyhow::Context;
use directories::UserDirs;
use nix::time::{clock_gettime, ClockId};
use smithay::utils::{Logical, Point, Rectangle};
use time::OffsetDateTime;
pub fn get_monotonic_time() -> Duration {
Duration::from(clock_gettime(ClockId::CLOCK_MONOTONIC).unwrap())
}
pub fn center(rect: Rectangle<i32, Logical>) -> Point<i32, Logical> {
rect.loc + rect.size.downscale(2).to_point()
}
pub fn make_screenshot_path() -> anyhow::Result<PathBuf> {
let dirs = UserDirs::new().context("error retrieving home directory")?;
let mut path = dirs.picture_dir().map(|p| p.to_owned()).unwrap_or_else(|| {
let mut dir = dirs.home_dir().to_owned();
dir.push("Pictures");
dir
});
path.push("Screenshots");
unsafe {
// are you kidding me
time::util::local_offset::set_soundness(time::util::local_offset::Soundness::Unsound);
};
let now = OffsetDateTime::now_local().unwrap_or_else(|_| OffsetDateTime::now_utc());
let desc = time::macros::format_description!(
"Screenshot from [year]-[month]-[day] [hour]-[minute]-[second].png"
);
let name = now.format(desc).context("error formatting time")?;
path.push(name);
Ok(path)
}
/// Spawns the command to run independently of the compositor.
pub fn spawn(command: impl AsRef<OsStr>, args: impl IntoIterator<Item = impl AsRef<OsStr>>) {
let _span = tracy_client::span!();
let command = command.as_ref();
let mut process = Command::new(command);
process
.args(args)
.stdin(Stdio::null())
.stdout(Stdio::null())
.stderr(Stdio::null());
// Double-fork to avoid having to waitpid the child.
unsafe {
process.pre_exec(|| {
match libc::fork() {
-1 => return Err(io::Error::last_os_error()),
0 => (),
_ => libc::_exit(0),
}
Ok(())
});
}
let mut child = match process.spawn() {
Ok(child) => child,
Err(err) => {
warn!("error spawning {command:?}: {err:?}");
return;
}
};
match child.wait() {
Ok(status) => {
if !status.success() {
warn!("child did not exit successfully: {status:?}");
}
}
Err(err) => {
warn!("error waiting for child: {err:?}");
}
}
}
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