Vendor dependenciesvendor

Just testing how CI works with this. I tend to prefer vendoring, as it
means that if you have a copy of the code *you can always build it*.
Even if you're 20 years in the future

This is the output of

```
cargo vendor --versioned-dirs
```

10 files changed, 819 insertions, 0 deletions

diff --git a/vendor/dirs-3.0.1/.cargo-checksum.json b/vendor/dirs-3.0.1/.cargo-checksum.json
new file mode 100644
index 00000000..2d356e9e
--- /dev/null
+++ b/vendor/dirs-3.0.1/.cargo-checksum.json
@@ -0,0 +1 @@
+{"files":{"Cargo.toml":"484dfe4111dc697ed30f99974df9abc4bbff53c39d74e8524fccde3608002b4c","LICENSE-APACHE":"d3174ad63e721d4c9dccb8ad4320848992d314369bc46319720b5802c9153fe9","LICENSE-MIT":"6a2e0ade09a7d5f816f11566fee2b151b32235a7fad52b41d49cce96f833c1a9","README.md":"4d00f673e64fd2081ad1b8e893539d12da852253e6fa256817669d4b7273c854","src/lib.rs":"e6f5f9f6bf6e59487044d1a62d0b064172b69d821b54ca05ea311f6d23fd63d9","src/lin.rs":"a766f304b3ff57c89a99e4758bdab68ec6574f4260f7d9eef597e29946287bb0","src/mac.rs":"0a46b1ac65fa4862e6fbd6b48c30728549a7012f2681673ff4376412ca7ac1c8","src/wasm.rs":"4b360672a329c21465fa8404310f887785b31c5901b933b78d92eece2dcb4af0","src/win.rs":"ef2ffee565be720e155a8cbbf489ecf7e56c1f20023731d614e89e6e54f03cd9"},"package":"142995ed02755914747cc6ca76fc7e4583cd18578746716d0508ea6ed558b9ff"}
\ No newline at end of file
diff --git a/vendor/dirs-3.0.1/Cargo.toml b/vendor/dirs-3.0.1/Cargo.toml
new file mode 100644
index 00000000..1485b1b2
--- /dev/null
+++ b/vendor/dirs-3.0.1/Cargo.toml
@@ -0,0 +1,23 @@
+# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
+#
+# When uploading crates to the registry Cargo will automatically
+# "normalize" Cargo.toml files for maximal compatibility
+# with all versions of Cargo and also rewrite `path` dependencies
+# to registry (e.g., crates.io) dependencies
+#
+# If you believe there's an error in this file please file an
+# issue against the rust-lang/cargo repository. If you're
+# editing this file be aware that the upstream Cargo.toml
+# will likely look very different (and much more reasonable)
+
+[package]
+name = "dirs"
+version = "3.0.1"
+authors = ["Simon Ochsenreither <simon@ochsenreither.de>"]
+description = "A tiny low-level library that provides platform-specific standard locations of directories for config, cache and other data on Linux, Windows, macOS and Redox by leveraging the mechanisms defined by the XDG base/user directory specifications on Linux, the Known Folder API on Windows, and the Standard Directory guidelines on macOS."
+readme = "README.md"
+keywords = ["xdg", "basedir", "app_dirs", "path", "folder"]
+license = "MIT OR Apache-2.0"
+repository = "https://github.com/soc/dirs-rs"
+[dependencies.dirs-sys]
+version = "0.3.5"
diff --git a/vendor/dirs-3.0.1/LICENSE-APACHE b/vendor/dirs-3.0.1/LICENSE-APACHE
new file mode 100644
index 00000000..91e18a62
--- /dev/null
+++ b/vendor/dirs-3.0.1/LICENSE-APACHE
@@ -0,0 +1,174 @@
+                              Apache License
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diff --git a/vendor/dirs-3.0.1/LICENSE-MIT b/vendor/dirs-3.0.1/LICENSE-MIT
new file mode 100644
index 00000000..1452dc14
--- /dev/null
+++ b/vendor/dirs-3.0.1/LICENSE-MIT
@@ -0,0 +1,19 @@
+Copyright (c) 2018-2019 dirs-rs contributors
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/vendor/dirs-3.0.1/README.md b/vendor/dirs-3.0.1/README.md
new file mode 100644
index 00000000..a81d67d1
--- /dev/null
+++ b/vendor/dirs-3.0.1/README.md
@@ -0,0 +1,210 @@
+[![crates.io](https://img.shields.io/crates/v/dirs.svg)](https://crates.io/crates/dirs)
+[![API documentation](https://docs.rs/dirs/badge.svg)](https://docs.rs/dirs/)
+![actively developed](https://img.shields.io/badge/maintenance-actively--developed-brightgreen.svg)
+[![TravisCI status](https://img.shields.io/travis/dirs-dev/dirs-rs/master.svg?label=Linux/macOS%20build)](https://travis-ci.org/dirs-dev/dirs-rs)
+[![AppVeyor status](https://img.shields.io/appveyor/ci/soc/dirs-rs/master.svg?label=Windows%20build)](https://ci.appveyor.com/project/soc/dirs-rs/branch/master)
+![License: MIT/Apache-2.0](https://img.shields.io/badge/license-MIT%2FApache--2.0-orange.svg)
+
+# `dirs`
+
+## Introduction
+
+- a tiny low-level library with a minimal API
+- that provides the platform-specific, user-accessible locations
+- for retrieving and storing configuration, cache and other data
+- on Linux, Redox, Windows (≥ Vista), macOS and other platforms.
+
+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 and Redox
+- the [Known Folder](https://msdn.microsoft.com/en-us/library/windows/desktop/dd378457.aspx) API on Windows
+- the [Standard Directories](https://developer.apple.com/library/content/documentation/FileManagement/Conceptual/FileSystemProgrammingGuide/FileSystemOverview/FileSystemOverview.html#//apple_ref/doc/uid/TP40010672-CH2-SW6)
+  guidelines on macOS
+
+## Platforms
+
+This library is written in Rust, and supports Linux, Redox, macOS and Windows.
+Other platforms are also supported; they use the Linux conventions.
+
+The minimal required version of Rust is 1.13 except for Redox, where the minimum Rust version
+depends on the [`redox_users`](https://crates.io/crates/redox_users) crate.
+
+It's mid-level sister library, _directories_, is available for Rust ([directories-rs](https://github.com/dirs-dev/directories-rs))
+and on the JVM ([directories-jvm](https://github.com/dirs-dev/directories-jvm)).
+
+## Usage
+
+#### Dependency
+
+Add the library as a dependency to your project by inserting
+
+```toml
+dirs = "3.0"
+```
+
+into the `[dependencies]` section of your Cargo.toml file.
+
+If you are upgrading from version 2, please read the [section on breaking changes](#3) first.
+
+#### Example
+
+Library run by user Alice:
+
+```rust
+extern crate dirs;
+
+dirs::home_dir();
+// Lin: Some(/home/alice)
+// Win: Some(C:\Users\Alice)
+// Mac: Some(/Users/Alice)
+
+dirs::audio_dir();
+// Lin: Some(/home/alice/Music)
+// Win: Some(C:\Users\Alice\Music)
+// Mac: Some(/Users/Alice/Music)
+
+dirs::config_dir();
+// Lin: Some(/home/alice/.config)
+// Win: Some(C:\Users\Alice\AppData\Roaming)
+// Mac: Some(/Users/Alice/Library/Application Support)
+
+dirs::executable_dir();
+// Lin: Some(/home/alice/.local/bin)
+// Win: None
+// Mac: None
+```
+
+## Design Goals
+
+- The _dirs_ library is a low-level crate designed to provide the paths to standard directories
+  as defined by operating systems rules or conventions.<br/>
+  If your requirements are more complex, e. g. computing cache, config, etc. paths for specific
+  applications or projects, consider using [directories](https://github.com/dirs-dev/directories-rs)
+  instead.
+- This library does not create directories or check for their existence. The library only provides
+  information on what the path to a certain directory _should_ be.<br/>
+  How this information is used is a decision that developers need to make based on the requirements
+  of each individual application.
+- This library is intentionally focused on providing information on user-writable directories only,
+  as there is no discernible benefit in returning a path that points to a user-level, writable
+  directory on one operating system, but a system-level, read-only directory on another.<br/>
+  The confusion and unexpected failure modes of such an approach would be immense.
+  - `executable_dir` is specified to provide the path to a user-writable directory for binaries.<br/>
+    As such a directory only commonly exists on Linux, it returns `None` on macOS and Windows.
+  - `font_dir` is specified to provide the path to a user-writable directory for fonts.<br/>
+    As such a directory only exists on Linux and macOS, it returns `None` on Windows.
+  - `runtime_dir` is specified to provide the path to a directory for non-essential runtime data.
+    It is required that this directory is created when the user logs in, is only accessible by the
+    user itself, is deleted when the user logs out, and supports all filesystem features of the
+    operating system.<br/>
+    As such a directory only commonly exists on Linux, it returns `None` on macOS and Windows.
+
+## Features
+
+**If you want to compute the location of cache, config or data directories for your own application or project,
+use `ProjectDirs` of the [directories](https://github.com/dirs-dev/directories-rs) project instead.**
+
+| Function name    | Value on Linux/Redox                                                                             | Value on Windows                  | Value on macOS                              |
+| ---------------- | ------------------------------------------------------------------------------------------------ | --------------------------------- | ------------------------------------------- |
+| `home_dir`       | `Some($HOME)`                                                                                    | `Some({FOLDERID_Profile})`        | `Some($HOME)`                               |
+| `cache_dir`      | `Some($XDG_CACHE_HOME)`         or `Some($HOME`/.cache`)`                                        | `Some({FOLDERID_LocalAppData})`   | `Some($HOME`/Library/Caches`)`              |
+| `config_dir`     | `Some($XDG_CONFIG_HOME)`        or `Some($HOME`/.config`)`                                       | `Some({FOLDERID_RoamingAppData})` | `Some($HOME`/Library/Application Support`)` |
+| `data_dir`       | `Some($XDG_DATA_HOME)`          or `Some($HOME`/.local/share`)`                                  | `Some({FOLDERID_RoamingAppData})` | `Some($HOME`/Library/Application Support`)` |
+| `data_local_dir` | `Some($XDG_DATA_HOME)`          or `Some($HOME`/.local/share`)`                                  | `Some({FOLDERID_LocalAppData})`   | `Some($HOME`/Library/Application Support`)` |
+| `executable_dir` | `Some($XDG_BIN_HOME`/../bin`)`  or `Some($XDG_DATA_HOME`/../bin`)` or `Some($HOME`/.local/bin`)` | `None`                            | `None`                                      |
+| `preference_dir` | `Some($XDG_CONFIG_HOME)`        or `Some($HOME`/.config`)`                                       | `Some({FOLDERID_RoamingAppData})` | `Some($HOME`/Library/Preferences`)`         |
+| `runtime_dir`    | `Some($XDG_RUNTIME_DIR)`        or `None`                                                        | `None`                            | `None`                                      |
+| `audio_dir`      | `Some(XDG_MUSIC_DIR)`           or `None`                                                        | `Some({FOLDERID_Music})`          | `Some($HOME`/Music/`)`                      |
+| `desktop_dir`    | `Some(XDG_DESKTOP_DIR)`         or `None`                                                        | `Some({FOLDERID_Desktop})`        | `Some($HOME`/Desktop/`)`                    |
+| `document_dir`   | `Some(XDG_DOCUMENTS_DIR)`       or `None`                                                        | `Some({FOLDERID_Documents})`      | `Some($HOME`/Documents/`)`                  |
+| `download_dir`   | `Some(XDG_DOWNLOAD_DIR)`        or `None`                                                        | `Some({FOLDERID_Downloads})`      | `Some($HOME`/Downloads/`)`                  |
+| `font_dir`       | `Some($XDG_DATA_HOME`/fonts/`)` or `Some($HOME`/.local/share/fonts/`)`                           | `None`                            | `Some($HOME`/Library/Fonts/`)`              |
+| `picture_dir`    | `Some(XDG_PICTURES_DIR)`        or `None`                                                        | `Some({FOLDERID_Pictures})`       | `Some($HOME`/Pictures/`)`                   |
+| `public_dir`     | `Some(XDG_PUBLICSHARE_DIR)`     or `None`                                                        | `Some({FOLDERID_Public})`         | `Some($HOME`/Public/`)`                     |
+| `template_dir`   | `Some(XDG_TEMPLATES_DIR)`       or `None`                                                        | `Some({FOLDERID_Templates})`      | `None`                                      |
+| `video_dir`      | `Some(XDG_VIDEOS_DIR)`          or `None`                                                        | `Some({FOLDERID_Videos})`         | `Some($HOME`/Movies/`)`                     |
+
+## Comparison
+
+There are other crates in the Rust ecosystem that try similar or related things.
+Here is an overview of them, combined with ratings on properties that guided the design of this crate.
+
+Please take this table with a grain of salt: a different crate might very well be more suitable for your specific use case.
+(Of course _my_ crate achieves _my_ design goals better than other crates, which might have had different design goals.)
+
+| Library                                                   | Status         | Lin | Mac | Win |Base|User|Proj|Conv|
+| --------------------------------------------------------- | -------------- |:---:|:---:|:---:|:--:|:--:|:--:|:--:|
+| [app_dirs](https://crates.io/crates/app_dirs)             | Unmaintained   |  ✔  |  ✔  |  ✔  | 🞈  | ✖  | ✔  | ✖  |
+| [app_dirs2](https://crates.io/crates/app_dirs2)           | Maintained     |  ✔  |  ✔  |  ✔  | 🞈  | ✖  | ✔  | ✖  |
+| **dirs**                                                  | **Developed**  |  ✔  |  ✔  |  ✔  | ✔  | ✔  | ✖  | ✔  |
+| [directories](https://crates.io/crates/directories)       | Developed      |  ✔  |  ✔  |  ✔  | ✔  | ✔  | ✔  | ✔  |
+| [s_app_dir](https://crates.io/crates/s_app_dir)           | Unmaintained?  |  ✔  |  ✖  |  🞈  | ✖  | ✖  | 🞈  | ✖  |
+| [standard_paths](https://crates.io/crates/standard_paths) | Maintained     |  ✔  |  ✖  |  ✔  | ✔  | ✔  | ✔  | ✖  |
+| [xdg](https://crates.io/crates/xdg)                       | Maintained     |  ✔  |  ✖  |  ✖  | ✔  | ✖  | ✔  | 🞈  |
+| [xdg-basedir](https://crates.io/crates/xdg-basedir)       | Unmaintained?  |  ✔  |  ✖  |  ✖  | ✔   | ✖  | ✖  | 🞈  |
+| [xdg-rs](https://crates.io/crates/xdg-rs)                 | Obsolete       |  ✔  |  ✖  |  ✖  | ✔   | ✖  | ✖  | 🞈  |
+
+- Lin: Linux support
+- Mac: macOS support
+- Win: Windows support
+- Base: Supports [generic base directories](https://github.com/dirs-dev/directories-rs#basedirs)
+- User: Supports [user directories](https://github.com/dirs-dev/directories-rs#userdirs)
+- Proj: Supports [project-specific base directories](https://github.com/dirs-dev/directories-rs#projectdirs)
+- Conv: Follows naming conventions of the operating system it runs on
+
+## Build
+
+It's possible to cross-compile this library if the necessary toolchains are installed with rustup.
+This is helpful to ensure a change hasn't broken code on a different platform.
+
+The following commands will build this library on Linux, macOS and Windows:
+
+```
+cargo build --target=x86_64-unknown-linux-gnu
+cargo build --target=x86_64-pc-windows-gnu
+cargo build --target=x86_64-apple-darwin
+cargo build --target=x86_64-unknown-redox
+```
+
+## Changelog
+
+### 3
+
+- **BREAKING CHANGE** The behavior of `config_dir` on macOS has been adjusted
+  (thanks to [everyone involved](https://github.com/dirs-dev/directories-rs/issues/62)):
+  - The existing `config_dir` function has been changed to return the `Application Support`
+    directory on macOS, as suggested by Apple documentation.
+  - The behavior of the `config_dir` function on non-macOS platforms has not been changed.
+  - If you have used the `config_dir` function to store files, it may be necessary to write code
+    that migrates the files to the new location on macOS.<br/>
+    (Alternative: change uses of the `config_dir` function to uses of the `preference_dir` function
+    to retain the old behavior.)
+- The newly added `preference_dir` function returns the `Preferences` directory on macOS now,
+  which – according to Apple documentation – shall only be used to store .plist files using
+  Apple-proprietary APIs.
+  – `preference_dir` and `config_dir` behave identical on non-macOS platforms.
+
+### 2
+
+The behavior of deactivated, missing or invalid [_XDG User Dirs_](https://www.freedesktop.org/wiki/Software/xdg-user-dirs/)
+entries on Linux has been improved (contributed by @tmiasko, thank you!):
+
+- Version 1 returned the user's home directory (`Some($HOME)`) for such faulty entries, except for a faulty `XDG_DESKTOP_DIR` entry which returned (`Some($HOME/Desktop)`).
+- Version 2 returns `None` for such entries.
+
+## License
+
+Licensed under either of
+
+ * Apache License, Version 2.0
+   ([LICENSE-APACHE](LICENSE-APACHE) or http://www.apache.org/licenses/LICENSE-2.0)
+ * MIT license
+   ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
+
+at your option.
+
+## Contribution
+
+Unless you explicitly state otherwise, any contribution intentionally submitted
+for inclusion in the work by you, as defined in the Apache-2.0 license, shall be
+dual licensed as above, without any additional terms or conditions.
diff --git a/vendor/dirs-3.0.1/src/lib.rs b/vendor/dirs-3.0.1/src/lib.rs
new file mode 100644
index 00000000..e3c2232d
--- /dev/null
+++ b/vendor/dirs-3.0.1/src/lib.rs
@@ -0,0 +1,294 @@
+//! The _dirs_ crate is
+//!
+//! - a tiny library with a minimal API (16 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 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   | `$XDG_RUNTIME_DIR` | /run/user/1001/ |
+/// | macOS   | –                  | –               |
+/// | Windows | –                  | –               |
+pub fn runtime_dir() -> Option<PathBuf> {
+    sys::runtime_dir()
+}
+
+/// Returns the path to the user's audio directory.
+///
+/// The returned value depends on the operating system and is either a `Some`, containing a value from the following table, or a `None`.
+///
+/// |Platform | Value              | Example              |
+/// | ------- | ------------------ | -------------------- |
+/// | Linux   | `XDG_MUSIC_DIR`    | /home/alice/Music    |
+/// | macOS   | `$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 t