53 lines
2 KiB
Rust
53 lines
2 KiB
Rust
use std::env;
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use std::fs::File;
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use std::io::{BufRead, BufReader};
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use std::process::Command;
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pub fn main() {
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let file = File::open("initfs:etc/init.rc").expect("failed to open init.rc");
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let reader = BufReader::new(file);
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for line_result in reader.lines() {
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let line = line_result.expect("failed to read init.rc");
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let line = line.trim();
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if ! line.is_empty() && ! line.starts_with('#') {
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let mut args = line.split(' ');
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if let Some(cmd) = args.next() {
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match cmd {
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"echo" => {
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if let Some(arg) = args.next() {
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print!("{}", arg);
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}
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for arg in args {
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print!(" {}", arg);
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}
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print!("\n");
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},
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"cd" => if let Some(dir) = args.next() {
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if let Err(err) = env::set_current_dir(dir) {
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println!("init: failed to cd to '{}': {}", dir, err);
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}
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} else {
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println!("init: failed to cd: no argument");
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},
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_ => {
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let mut command = Command::new(cmd);
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for arg in args {
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command.arg(arg);
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}
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println!("init: spawning {}", line);
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match command.spawn() {
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Ok(mut child) => match child.wait() {
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Ok(status) => println!("init: waited for {}: {:?}", line, status.code()),
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Err(err) => println!("init: failed to wait for '{}': {}", line, err)
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},
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Err(err) => println!("init: failed to execute '{}': {}", line, err)
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}
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}
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}
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}
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}
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}
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}
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