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mod log;
mod mounts;
mod pid_one;
mod host;
use crate::log::{log_critical_error, log_warning, log_success};
use crate::mounts::fstab::FstabEntry;
use crate::mounts::rescue;
use crate::pid_one::check_pid;
use crate::host::sethn::try_set_hostname;
use std::process::Command;
// RULE: I will not use .expect() and .unwrap() in this project. This causes panic,
// which will affect stability.
fn spawn_udev() -> Result<(), Box<dyn std::error::Error>> {
log_success("Spawning udev daemon.");
let udevd_paths = [
"/sbin/udevd",
"/usr/sbin/udevd",
"/bin/udevd",
"/usr/bin/udevd",
];
let udevd_path = udevd_paths
.iter()
.find(|path| std::path::Path::new(path).exists())
.ok_or("udevd not found in standard locations")?;
let child = Command::new(udevd_path)
.arg("--daemon")
.spawn()
.map_err(|e| format!("Failed to spawn udevd: {}", e))?;
log_success(&format!("udevd started with PID: {}", child.id()));
Command::new(udevd_path)
.arg("--trigger")
.output()
.map_err(|e| format!("Failed to trigger udev: {}", e))?;
Ok(())
}
fn main() -> Result<(), Box<dyn std::error::Error>> {
println!("Initializing your system.");
if let Err(e) = check_pid() {
log_critical_error(&format!("Runned not as first process. init/src/pid_one.rs:8:8 - {}", e));
return Err(e);
}
match FstabEntry::parse_fstab("/etc/fstab") {
Ok(entries) => {
log_success("Sucessfully parsed /etc/fstab.");
for entry in &entries {
let _ = entry.mount();
}
}
Err(error) => {
log_warning("Looks like fstab broken. Mounting all without reading /etc/fstab.");
log_warning(&format!("Error:\n {}", error));
let _ = rescue::mount_system();
// Minimal mounts without fstab, because /etc/fstab needs fixes :)
// Btw it should be used if fstab broken or has syntax-errors
// TODO: If fstab contains syntax errors, mount everything else that does not contain them through it anyway.
}
}
let _ = try_set_hostname();
match spawn_udev() {
Ok(_) => log_success("Successfully started udev daemon."),
Err(e) => log_critical_error(&format!("Failed to start udev daemon: {}", e)),
}
Ok(())
}
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