panbuild 0.0.11

The universal builder.
Documentation 
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use std::fs::{self, DirEntry};
use std::io;
use std::path::Path;

// one possible implementation of walking a directory only visiting files
// Taken from https://doc.rust-lang.org/std/fs/fn.read_dir.html
pub fn visit_dirs(dir: &Path, cb: &dyn Fn(&DirEntry)) -> io::Result<()> {
    if dir.is_dir() {
        for entry in fs::read_dir(dir)? {
            let entry = entry?;
            let path = entry.path();
            if path.is_dir() {
                visit_dirs(&path, cb)?;
            } else {
                cb(&entry);
            }
        }
    }
    Ok(())
}

pub fn get_all_paths(dir: &Path) -> Result<Vec<std::path::PathBuf>, String> {
    let mut all_paths: Vec<std::path::PathBuf> = vec![];

    let dir_entries = match fs::read_dir(dir) {
        Ok(entries) => entries,
        Err(err) => return Ok(vec![]),
    };
    for entry in dir_entries {
        let entry_path = entry.unwrap().path();
        if entry_path.is_dir() {
            let mut dir_paths: Vec<std::path::PathBuf> = get_all_paths(&entry_path)?;
            all_paths.append(&mut dir_paths);
        } else {
            all_paths.push(entry_path);
        }
    }

    Ok(all_paths)
}