openmw-config 0.1.0

A library for interacting with the Openmw Configuration system.
Documentation 
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pub fn debug_log(message: String) {
    if std::env::var("CFG_DEBUG").is_ok() {
        println!("[CONFIG DEBUG]: {message}")
    }
}

pub fn user_config_path(
    sub_configs: &Vec<&std::path::PathBuf>,
    fallthrough_dir: &std::path::PathBuf,
) -> std::path::PathBuf {
    sub_configs
        .into_iter()
        .last()
        .unwrap_or(&fallthrough_dir)
        .to_path_buf()
}

pub fn user_config_writable(path: &std::path::PathBuf) -> bool {
    std::fs::metadata(path)
        .map(|m| m.permissions().readonly() == false)
        .unwrap_or(false)
}

pub fn can_write_to_dir<P: AsRef<std::path::Path>>(dir: &P) -> bool {
    let test_path = dir.as_ref().join(".openmw_cfg_write_test");
    match std::fs::File::create(&test_path) {
        Ok(_) => {
            let _ = std::fs::remove_file(&test_path);
            true
        }
        Err(_) => false,
    }
}

/// Transposes an input directory or file path to an openmw.cfg path
/// Maybe could do with some additional validation
pub fn input_config_path(
    config_path: &std::path::Path,
) -> Result<std::path::PathBuf, crate::ConfigError> {
    if config_path.is_file() || config_path.is_symlink() {
        Ok(config_path.to_path_buf())
    } else if config_path.is_dir() {
        let maybe_config = config_path.join("openmw.cfg");

        if std::fs::metadata(maybe_config).is_ok() {
            Ok(config_path.join("openmw.cfg"))
        } else {
            crate::config::bail_config!(cannot_find, config_path);
        }
    } else {
        crate::config::bail_config!(not_file_or_directory, config_path);
    }
}