use crate::file::File;
use anyhow::{self, format_err, Context, Error};
use proc_macro2::TokenStream;
use quote::{quote, ToTokens};
use std::path::{Path, PathBuf};
#[derive(Debug, Clone, PartialEq)]
pub(crate) struct Dir {
root_rel_path: PathBuf,
abs_path: PathBuf,
files: Vec<File>,
dirs: Vec<Dir>,
}
impl Dir {
pub fn from_disk<Q: AsRef<Path>, P: Into<PathBuf>>(root: Q, path: P) -> Result<Dir, Error> {
let abs_path = path.into();
let root = root.as_ref();
let root_rel_path = abs_path.strip_prefix(&root).unwrap().to_path_buf();
if !abs_path.exists() {
return Err(format_err!("The directory doesn't exist"));
}
let mut files = Vec::new();
let mut dirs = Vec::new();
for entry in abs_path.read_dir().context("Couldn't read the directory")? {
let entry = entry?.path();
if entry.is_file() {
files.push(File::from_disk(&root, entry)?);
} else if entry.is_dir() {
dirs.push(Dir::from_disk(&root, entry)?);
}
}
Ok(Dir {
root_rel_path,
abs_path,
files,
dirs,
})
}
}
impl ToTokens for Dir {
fn to_tokens(&self, tokens: &mut TokenStream) {
let root_rel_path = self.root_rel_path.display().to_string();
let files = &self.files;
let dirs = &self.dirs;
let tok = quote! {
$crate::Dir {
path: #root_rel_path,
files: &[#(
#files
),*],
dirs: &[#(
#dirs
),*],
}
};
tok.to_tokens(tokens);
}
}