nix_builder/src/fs_util.rs

macro_rules! assert_directory {
    ($dir:expr, $($params:tt)*) => {{
        let dir = $dir;
        let metadata = tokio::fs::metadata(&dir).await;
        match metadata {
            Ok(metadata) if !metadata.is_dir() => {
                tracing::info!($($params)*);
                tokio::fs::create_dir_all(dir).await?;
            }
            Err(_) => {
                tracing::info!($($params)*);
                tokio::fs::create_dir_all(dir).await?;
            }
            Ok(_) => {}
        };
    }};
}
use std::path::Path;

pub(crate) use assert_directory;

use crate::error::CustomError;

pub(crate) async fn is_directory<D: AsRef<Path>>(dir: D) -> Result<bool, CustomError> {
    let metadata = tokio::fs::metadata(dir).await;
    let result = matches!(metadata, Ok(metadata) if metadata.is_dir());
    Ok(result)
}

pub(crate) async fn is_git_repo<D: AsRef<Path>>(dir: D) -> Result<bool, CustomError> {
    let dot_git = dir.as_ref().join(".git");
    is_directory(dot_git).await
}