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Diffstat (limited to 'third_party/rust/dirs/src/lib.rs')
| -rw-r--r-- | third_party/rust/dirs/src/lib.rs | 316 |
1 files changed, 316 insertions, 0 deletions
diff --git a/third_party/rust/dirs/src/lib.rs b/third_party/rust/dirs/src/lib.rs new file mode 100644 index 0000000000..3828b4fe73 --- /dev/null +++ b/third_party/rust/dirs/src/lib.rs @@ -0,0 +1,316 @@ +//! The _dirs_ crate is +//! +//! - a tiny library with a minimal API (18 public functions) +//! - that provides the platform-specific, user-accessible locations +//! - for finding and storing configuration, cache and other data +//! - on Linux, Redox, Windows (≥ Vista) and macOS. +//! +//! The library provides the location of these directories by leveraging the mechanisms defined by +//! +//! - the [XDG base directory](https://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html) and the [XDG user directory](https://www.freedesktop.org/wiki/Software/xdg-user-dirs/) specifications on Linux, +//! - the [Known Folder](https://msdn.microsoft.com/en-us/library/windows/desktop/bb776911(v=vs.85).aspx) system on Windows, and +//! - the [Standard Directories](https://developer.apple.com/library/content/documentation/FileManagement/Conceptual/FileSystemProgrammingGuide/FileSystemOverview/FileSystemOverview.html#//apple_ref/doc/uid/TP40010672-CH2-SW6) on macOS. + +#![deny(missing_docs)] + +use std::path::PathBuf; + +#[cfg(target_os = "windows")] +mod win; +#[cfg(target_os = "windows")] +use win as sys; + +#[cfg(any(target_os = "macos", target_os = "ios"))] +mod mac; +#[cfg(any(target_os = "macos", target_os = "ios"))] +use mac as sys; + +#[cfg(target_arch = "wasm32")] +mod wasm; +#[cfg(target_arch = "wasm32")] +use wasm as sys; + +#[cfg(not(any( + target_os = "windows", + target_os = "macos", target_os = "ios", + target_arch = "wasm32" +)))] +mod lin; +#[cfg(not(any( + target_os = "windows", + target_os = "macos", target_os = "ios", + target_arch = "wasm32" +)))] +use lin as sys; + +/// Returns the path to the user's home directory. +/// +/// The returned value depends on the operating system and is either a `Some`, containing a value from the following table, or a `None`. +/// +/// |Platform | Value | Example | +/// | ------- | -------------------- | -------------- | +/// | Linux | `$HOME` | /home/alice | +/// | macOS | `$HOME` | /Users/Alice | +/// | Windows | `{FOLDERID_Profile}` | C:\Users\Alice | +/// +/// ### Linux and macOS: +/// +/// - Use `$HOME` if it is set and not empty. +/// - If `$HOME` is not set or empty, then the function `getpwuid_r` is used to determine +/// the home directory of the current user. +/// - If `getpwuid_r` lacks an entry for the current user id or the home directory field is empty, +/// then the function returns `None`. +/// +/// ### Windows: +/// +/// This function retrieves the user profile folder using `SHGetKnownFolderPath`. +/// +/// All the examples on this page mentioning `$HOME` use this behavior. +/// +/// _Note:_ This function's behavior differs from [`std::env::home_dir`], +/// which works incorrectly on Linux, macOS and Windows. +/// +/// [`std::env::home_dir`]: https://doc.rust-lang.org/std/env/fn.home_dir.html +pub fn home_dir() -> Option<PathBuf> { + sys::home_dir() +} +/// Returns the path to the user's cache directory. +/// +/// The returned value depends on the operating system and is either a `Some`, containing a value from the following table, or a `None`. +/// +/// |Platform | Value | Example | +/// | ------- | ----------------------------------- | ---------------------------- | +/// | Linux | `$XDG_CACHE_HOME` or `$HOME`/.cache | /home/alice/.cache | +/// | macOS | `$HOME`/Library/Caches | /Users/Alice/Library/Caches | +/// | Windows | `{FOLDERID_LocalAppData}` | C:\Users\Alice\AppData\Local | +pub fn cache_dir() -> Option<PathBuf> { + sys::cache_dir() +} +/// Returns the path to the user's config directory. +/// +/// The returned value depends on the operating system and is either a `Some`, containing a value from the following table, or a `None`. +/// +/// |Platform | Value | Example | +/// | ------- | ------------------------------------- | ---------------------------------------- | +/// | Linux | `$XDG_CONFIG_HOME` or `$HOME`/.config | /home/alice/.config | +/// | macOS | `$HOME`/Library/Application Support | /Users/Alice/Library/Application Support | +/// | Windows | `{FOLDERID_RoamingAppData}` | C:\Users\Alice\AppData\Roaming | +pub fn config_dir() -> Option<PathBuf> { + sys::config_dir() +} +/// Returns the path to the user's data directory. +/// +/// The returned value depends on the operating system and is either a `Some`, containing a value from the following table, or a `None`. +/// +/// |Platform | Value | Example | +/// | ------- | ---------------------------------------- | ---------------------------------------- | +/// | Linux | `$XDG_DATA_HOME` or `$HOME`/.local/share | /home/alice/.local/share | +/// | macOS | `$HOME`/Library/Application Support | /Users/Alice/Library/Application Support | +/// | Windows | `{FOLDERID_RoamingAppData}` | C:\Users\Alice\AppData\Roaming | +pub fn data_dir() -> Option<PathBuf> { + sys::data_dir() +} +/// Returns the path to the user's local data directory. +/// +/// The returned value depends on the operating system and is either a `Some`, containing a value from the following table, or a `None`. +/// +/// |Platform | Value | Example | +/// | ------- | ---------------------------------------- | ---------------------------------------- | +/// | Linux | `$XDG_DATA_HOME` or `$HOME`/.local/share | /home/alice/.local/share | +/// | macOS | `$HOME`/Library/Application Support | /Users/Alice/Library/Application Support | +/// | Windows | `{FOLDERID_LocalAppData}` | C:\Users\Alice\AppData\Local | +pub fn data_local_dir() -> Option<PathBuf> { + sys::data_local_dir() +} +/// Returns the path to the user's executable directory. +/// +/// The returned value depends on the operating system and is either a `Some`, containing a value from the following table, or a `None`. +/// +/// |Platform | Value | Example | +/// | ------- | ---------------------------------------------------------------- | ---------------------- | +/// | Linux | `$XDG_BIN_HOME` or `$XDG_DATA_HOME`/../bin or `$HOME`/.local/bin | /home/alice/.local/bin | +/// | macOS | – | – | +/// | Windows | – | – | +pub fn executable_dir() -> Option<PathBuf> { + sys::executable_dir() +} +/// Returns the path to the user's preference directory. +/// +/// The returned value depends on the operating system and is either a `Some`, containing a value from the following table, or a `None`. +/// +/// |Platform | Value | Example | +/// | ------- | ------------------------------------- | -------------------------------- | +/// | Linux | `$XDG_CONFIG_HOME` or `$HOME`/.config | /home/alice/.config | +/// | macOS | `$HOME`/Library/Preferences | /Users/Alice/Library/Preferences | +/// | Windows | `{FOLDERID_RoamingAppData}` | C:\Users\Alice\AppData\Roaming | +pub fn preference_dir() -> Option<PathBuf> { + sys::preference_dir() +} +/// Returns the path to the user's runtime directory. +/// +/// The runtime directory contains transient, non-essential data (like sockets or named pipes) that +/// is expected to be cleared when the user's session ends. +/// +/// The returned value depends on the operating system and is either a `Some`, containing a value from the following table, or a `None`. +/// +/// |Platform | Value | Example | +/// | ------- | ------------------ | --------------- | +/// | Linux | `$XDG_RUNTIME_DIR` | /run/user/1001/ | +/// | macOS | – | – | +/// | Windows | – | – | +pub fn runtime_dir() -> Option<PathBuf> { + sys::runtime_dir() +} +/// Returns the path to the user's state directory. +/// +/// The state directory contains data that should be retained between sessions (unlike the runtime +/// directory), but may not be important/portable enough to be synchronized across machines (unlike +/// the config/preferences/data directories). +/// +/// The returned value depends on the operating system and is either a `Some`, containing a value from the following table, or a `None`. +/// +/// |Platform | Value | Example | +/// | ------- | ----------------------------------------- | ------------------------ | +/// | Linux | `$XDG_STATE_HOME` or `$HOME`/.local/state | /home/alice/.local/state | +/// | macOS | – | – | +/// | Windows | – | – | +pub fn state_dir() -> Option<PathBuf> { + sys::state_dir() +} + +/// Returns the path to the user's audio directory. +/// +/// The returned value depends on the operating system and is either a `Some`, containing a value from the following table, or a `None`. +/// +/// |Platform | Value | Example | +/// | ------- | ------------------ | -------------------- | +/// | Linux | `XDG_MUSIC_DIR` | /home/alice/Music | +/// | macOS | `$HOME`/Music | /Users/Alice/Music | +/// | Windows | `{FOLDERID_Music}` | C:\Users\Alice\Music | +pub fn audio_dir() -> Option<PathBuf> { + sys::audio_dir() +} +/// Returns the path to the user's desktop directory. +/// +/// The returned value depends on the operating system and is either a `Some`, containing a value from the following table, or a `None`. +/// +/// |Platform | Value | Example | +/// | ------- | -------------------- | ---------------------- | +/// | Linux | `XDG_DESKTOP_DIR` | /home/alice/Desktop | +/// | macOS | `$HOME`/Desktop | /Users/Alice/Desktop | +/// | Windows | `{FOLDERID_Desktop}` | C:\Users\Alice\Desktop | +pub fn desktop_dir() -> Option<PathBuf> { + sys::desktop_dir() +} +/// Returns the path to the user's document directory. +/// +/// The returned value depends on the operating system and is either a `Some`, containing a value from the following table, or a `None`. +/// +/// |Platform | Value | Example | +/// | ------- | ---------------------- | ------------------------ | +/// | Linux | `XDG_DOCUMENTS_DIR` | /home/alice/Documents | +/// | macOS | `$HOME`/Documents | /Users/Alice/Documents | +/// | Windows | `{FOLDERID_Documents}` | C:\Users\Alice\Documents | +pub fn document_dir() -> Option<PathBuf> { + sys::document_dir() +} +/// Returns the path to the user's download directory. +/// +/// The returned value depends on the operating system and is either a `Some`, containing a value from the following table, or a `None`. +/// +/// |Platform | Value | Example | +/// | ------- | ---------------------- | ------------------------ | +/// | Linux | `XDG_DOWNLOAD_DIR` | /home/alice/Downloads | +/// | macOS | `$HOME`/Downloads | /Users/Alice/Downloads | +/// | Windows | `{FOLDERID_Downloads}` | C:\Users\Alice\Downloads | +pub fn download_dir() -> Option<PathBuf> { + sys::download_dir() +} +/// Returns the path to the user's font directory. +/// +/// The returned value depends on the operating system and is either a `Some`, containing a value from the following table, or a `None`. +/// +/// |Platform | Value | Example | +/// | ------- | ---------------------------------------------------- | ------------------------------ | +/// | Linux | `$XDG_DATA_HOME`/fonts or `$HOME`/.local/share/fonts | /home/alice/.local/share/fonts | +/// | macOS | `$HOME/Library/Fonts` | /Users/Alice/Library/Fonts | +/// | Windows | – | – | +pub fn font_dir() -> Option<PathBuf> { + sys::font_dir() +} +/// Returns the path to the user's picture directory. +/// +/// The returned value depends on the operating system and is either a `Some`, containing a value from the following table, or a `None`. +/// +/// |Platform | Value | Example | +/// | ------- | --------------------- | ----------------------- | +/// | Linux | `XDG_PICTURES_DIR` | /home/alice/Pictures | +/// | macOS | `$HOME`/Pictures | /Users/Alice/Pictures | +/// | Windows | `{FOLDERID_Pictures}` | C:\Users\Alice\Pictures | +pub fn picture_dir() -> Option<PathBuf> { + sys::picture_dir() +} +/// Returns the path to the user's public directory. +/// +/// The returned value depends on the operating system and is either a `Some`, containing a value from the following table, or a `None`. +/// +/// |Platform | Value | Example | +/// | ------- | --------------------- | ------------------- | +/// | Linux | `XDG_PUBLICSHARE_DIR` | /home/alice/Public | +/// | macOS | `$HOME`/Public | /Users/Alice/Public | +/// | Windows | `{FOLDERID_Public}` | C:\Users\Public | +pub fn public_dir() -> Option<PathBuf> { + sys::public_dir() +} +/// Returns the path to the user's template directory. +/// +/// The returned value depends on the operating system and is either a `Some`, containing a value from the following table, or a `None`. +/// +/// |Platform | Value | Example | +/// | ------- | ---------------------- | ---------------------------------------------------------- | +/// | Linux | `XDG_TEMPLATES_DIR` | /home/alice/Templates | +/// | macOS | – | – | +/// | Windows | `{FOLDERID_Templates}` | C:\Users\Alice\AppData\Roaming\Microsoft\Windows\Templates | +pub fn template_dir() -> Option<PathBuf> { + sys::template_dir() +} + +/// Returns the path to the user's video directory. +/// +/// The returned value depends on the operating system and is either a `Some`, containing a value from the following table, or a `None`. +/// +/// |Platform | Value | Example | +/// | ------- | ------------------- | --------------------- | +/// | Linux | `XDG_VIDEOS_DIR` | /home/alice/Videos | +/// | macOS | `$HOME`/Movies | /Users/Alice/Movies | +/// | Windows | `{FOLDERID_Videos}` | C:\Users\Alice\Videos | +pub fn video_dir() -> Option<PathBuf> { + sys::video_dir() +} + +#[cfg(test)] +mod tests { + #[test] + fn test_dirs() { + println!("home_dir: {:?}", ::home_dir()); + println!(); + println!("cache_dir: {:?}", ::cache_dir()); + println!("config_dir: {:?}", ::config_dir()); + println!("data_dir: {:?}", ::data_dir()); + println!("data_local_dir: {:?}", ::data_local_dir()); + println!("executable_dir: {:?}", ::executable_dir()); + println!("preference_dir: {:?}", ::preference_dir()); + println!("runtime_dir: {:?}", ::runtime_dir()); + println!("state_dir: {:?}", ::state_dir()); + println!(); + println!("audio_dir: {:?}", ::audio_dir()); + println!("desktop_dir: {:?}", ::desktop_dir()); + println!("cache_dir: {:?}", ::document_dir()); + println!("config_dir: {:?}", ::download_dir()); + println!("font_dir: {:?}", ::font_dir()); + println!("picture_dir: {:?}", ::picture_dir()); + println!("public_dir: {:?}", ::public_dir()); + println!("template_dir: {:?}", ::template_dir()); + println!("video_dir: {:?}", ::video_dir()); + } +} |