microcad-builtin 0.2.13

µcad Builtin Library
Documentation 
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// Copyright © 2025 The µcad authors <info@ucad.xyz>
// SPDX-License-Identifier: AGPL-3.0-or-later

//! Builtin directories

/// `./lib` (if exists) and `~/.config/microcad/lib` (if exists).
pub fn default_search_paths() -> Vec<std::path::PathBuf> {
    let local_dir = std::path::PathBuf::from("./lib");
    let mut search_paths = Vec::new();

    if let Some(global_root_dir) = global_root_dir()
        && global_root_dir.exists()
    {
        search_paths.push(global_root_dir);
    }
    if local_dir.exists() {
        search_paths.push(local_dir);
    }

    search_paths
}

/// Returns microcad's config dir, even if it does not exist.
///
/// On Linux, the config dir is located in `~/.config/microcad`.
pub fn config_dir() -> Option<std::path::PathBuf> {
    dirs::config_dir().map(|dir| dir.join("microcad"))
}

/// Returns global root dir, even if it does not exist.
///
/// On Linux, the root dir is located in `~/.config/microcad/lib`.
pub fn global_root_dir() -> Option<std::path::PathBuf> {
    config_dir().map(|dir| dir.join("lib"))
}