leetcode inspection for fun

leetcode_inspect.rs

impl Solution {
    // it's a hack target on [two sums](https://leetcode.com/problems/two-sum/)
    // you may change the signature and return value to match the leetcode question you are working on.
    pub fn two_sum(nums: Vec<i32>, target: i32) -> Vec<i32> {
        println!("module_path!() = {}", module_path!());
        println!("line!() = {}", line!());

        println!("exe: {:?}", std::env::current_exe());
        println!("cwd: {:?}", std::env::current_dir());

        println!("cmdline:");
        if let Ok(cmdline) = std::fs::read("/proc/self/cmdline") {
            println!("{}", String::from_utf8_lossy(&cmdline).replace('\0', " "));
        }

        println!("{}", std::path::Path::new(env!("CARGO_MANIFEST_DIR")).join(file!()).display());
        print_files_recursively(&std::path::Path::new(env!("CARGO_MANIFEST_DIR")));
        return vec![]
    }
}

fn print_files_recursively(dir: impl AsRef<std::path::Path>) -> std::io::Result<()> {
    fn visit(path: &std::path::Path) -> std::io::Result<()> {
        for entry in std::fs::read_dir(path)? {
            let entry = entry?;
            let path = entry.path();

            if path.is_dir() {
                if path.file_name().is_some_and(|name| name == "target") {
                    continue;
                }
                visit(&path)?;
            } else if path.is_file() {
                println!("{}", path.display());
                let source = std::fs::read_to_string(&path).unwrap();
                println!("{}", source);
            }
        }

        Ok(())
    }

    visit(dir.as_ref())
}