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path: root/iced_builder/src/environment.rs
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use std::env;
use std::path::PathBuf;

pub const CONFIG_FILE_NAME: &str = "config.toml";

pub fn config_dir() -> PathBuf {
    portable_dir().unwrap_or_else(platform_specific_config_dir)
}

pub fn data_dir() -> PathBuf {
    portable_dir().unwrap_or_else(|| {
        dirs_next::data_dir()
            .expect("expected valid data dir")
            .join("iced-builder")
    })
}

fn portable_dir() -> Option<PathBuf> {
    let exe = env::current_exe().ok()?;
    let dir = exe.parent()?;

    dir.join(CONFIG_FILE_NAME)
        .is_file()
        .then(|| dir.to_path_buf())
}

fn platform_specific_config_dir() -> PathBuf {
    #[cfg(target_os = "macos")]
    {
        xdg_config_dir().unwrap_or_else(|| {
            dirs_next::config_dir()
                .expect("expected valid config dir")
                .join("iced-builder")
        })
    }
    #[cfg(not(target_os = "macos"))]
    {
        dirs_next::config_dir()
            .expect("expected valid config dir")
            .join("iced-builder")
    }
}

#[cfg(target_os = "macos")]
fn xdg_config_dir() -> Option<PathBuf> {
    let config_dir = xdg::BaseDirectories::with_prefix("iced-builder")
        .ok()
        .and_then(|xdg| xdg.find_config_file(CONFIG_FILE_NAME))?;

    config_dir.parent().map(|p| p.to_path_buf())
}