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use anyhow::bail;
use std::fs::{self, File};
use std::io::{self, Write};
use std::os::fd::AsFd;
use std::process::Command;
use std::thread;
use termcolor::{Color, ColorChoice, ColorSpec, StandardStream, WriteColor};
fn null() -> anyhow::Result<File> {
Ok(File::open("/dev/null")?)
}
fn start() -> anyhow::Result<()> {
let mut stdout = StandardStream::stdout(ColorChoice::Always);
stdout.set_color(ColorSpec::new().set_fg(Some(Color::Yellow)))?;
writeln!(&mut stdout, "Starting rustkrazy")?;
for service in fs::read_dir("/bin")? {
let service = service?;
let service_name = match service.file_name().into_string() {
Ok(v) => v,
Err(_) => bail!("[ ERROR ] invalid unicode in file name"),
};
if service_name == "init" {
continue;
}
let mut cmd = Command::new(service.path());
cmd.stderr(null()?).stdin(null()?).stdout(null()?);
match cmd.spawn() {
Ok(_) => {
stdout.set_color(ColorSpec::new().set_fg(Some(Color::Green)))?;
writeln!(&mut stdout, "[ OK ] Starting {}", service_name)?;
stdout.reset()?;
stdout.flush()?;
cmd.stderr(io::stderr().as_fd().try_clone_to_owned()?);
cmd.stdin(io::stdin().as_fd().try_clone_to_owned()?);
cmd.stdout(io::stdout().as_fd().try_clone_to_owned()?);
}
Err(e) => {
stdout.set_color(ColorSpec::new().set_fg(Some(Color::Red)))?;
writeln!(&mut stdout, "[ ERROR ] Starting {}: {}", service_name, e)?;
stdout.reset()?;
stdout.flush()?;
}
}
}
Ok(())
}
fn main() {
match start() {
Ok(_) => {}
Err(e) => {
let mut stdout = StandardStream::stdout(ColorChoice::Always);
match stdout.set_color(ColorSpec::new().set_fg(Some(Color::Red))) {
Ok(_) => match writeln!(&mut stdout, "[ ERROR ] {}", e) {
Ok(_) => {}
Err(_) => println!("[ ERROR ] {}", e),
},
Err(_) => {
println!("[ ERROR ] {}", e);
}
}
}
}
loop {
thread::yield_now();
}
}
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