zoi-rs 1.18.3

Advanced Package Manager & Environment Orchestrator
Documentation 
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use anyhow::{Result, anyhow};
use sha2::{Digest, Sha512};
use std::fs;
use std::io::Read;
use std::path::Path;
use walkdir::WalkDir;

pub fn calculate_dir_hash(path: &Path) -> Result<String> {
    if !path.is_dir() {
        return Err(anyhow!("Path is not a directory"));
    }

    let mut hasher = Sha512::new();
    let mut paths = Vec::new();

    for entry in WalkDir::new(path).into_iter().filter_map(|e| e.ok()) {
        if entry.file_type().is_file() {
            paths.push(entry.path().to_path_buf());
        }
    }

    paths.sort();

    for file_path in paths {
        let mut file = fs::File::open(&file_path)?;
        let mut buffer = [0; 8192];
        loop {
            let bytes_read = file.read(&mut buffer)?;
            if bytes_read == 0 {
                break;
            }
            hasher.update(&buffer[..bytes_read]);
        }
    }

    Ok(hex::encode(hasher.finalize()))
}