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extern crate dirs_sys;
use std::env;
use std::path::PathBuf;
pub fn home_dir() -> Option<PathBuf> { dirs_sys::home_dir() }
pub fn cache_dir() -> Option<PathBuf> { env::var_os("XDG_CACHE_HOME") .and_then(dirs_sys::is_absolute_path).or_else(|| home_dir().map(|h| h.join(".cache"))) }
pub fn config_dir() -> Option<PathBuf> { env::var_os("XDG_CONFIG_HOME").and_then(dirs_sys::is_absolute_path).or_else(|| home_dir().map(|h| h.join(".config"))) }
pub fn data_dir() -> Option<PathBuf> { env::var_os("XDG_DATA_HOME") .and_then(dirs_sys::is_absolute_path).or_else(|| home_dir().map(|h| h.join(".local/share"))) }
pub fn data_local_dir() -> Option<PathBuf> { data_dir() }
pub fn preference_dir() -> Option<PathBuf> { config_dir() }
pub fn runtime_dir() -> Option<PathBuf> { env::var_os("XDG_RUNTIME_DIR").and_then(dirs_sys::is_absolute_path) }
pub fn state_dir() -> Option<PathBuf> { env::var_os("XDG_STATE_HOME") .and_then(dirs_sys::is_absolute_path).or_else(|| home_dir().map(|h| h.join(".local/state"))) }
pub fn executable_dir() -> Option<PathBuf> { env::var_os("XDG_BIN_HOME") .and_then(dirs_sys::is_absolute_path).or_else(|| home_dir().map(|h| h.join(".local/bin"))) }
pub fn audio_dir() -> Option<PathBuf> { dirs_sys::user_dir("MUSIC") }
pub fn desktop_dir() -> Option<PathBuf> { dirs_sys::user_dir("DESKTOP") }
pub fn document_dir() -> Option<PathBuf> { dirs_sys::user_dir("DOCUMENTS") }
pub fn download_dir() -> Option<PathBuf> { dirs_sys::user_dir("DOWNLOAD") }
pub fn font_dir() -> Option<PathBuf> { data_dir().map(|d| d.join("fonts")) }
pub fn picture_dir() -> Option<PathBuf> { dirs_sys::user_dir("PICTURES") }
pub fn public_dir() -> Option<PathBuf> { dirs_sys::user_dir("PUBLICSHARE") }
pub fn template_dir() -> Option<PathBuf> { dirs_sys::user_dir("TEMPLATES") }
pub fn video_dir() -> Option<PathBuf> { dirs_sys::user_dir("VIDEOS") }
#[cfg(test)]
mod tests {
#[test]
fn test_file_user_dirs_exists() {
let user_dirs_file = ::config_dir().unwrap().join("user-dirs.dirs");
println!("{:?} exists: {:?}", user_dirs_file, user_dirs_file.exists());
}
}