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+[![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 = "4.0"
+```
+
+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($XDG_BIN_HOME)` or `Some($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` |
+| `state_dir` | `Some($XDG_STATE_HOME)` or `Some($HOME`/.local/state`)` | `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
+
+### 4
+
+- **BREAKING CHANGE** The behavior of `executable_dir` has been adjusted to not depend on `$XDG_DATA_HOME`.
+ Code, which assumed that setting the `$XDG_DATA_HOME` environment variable also impacted `executable_dir` if
+ the `$XDG_BIN_HOME` environment variable was not set, requires adjustment.
+- Add support for `XDG_STATE_HOME`.
+
+### 3
+
+- **BREAKING CHANGE** The behavior of `config_dir` on macOS has been adjusted
+ (thanks to [everyone involved](https://github.com/dirs-dev/directories-rs/issues/62)):
+ - The existing `config_dir` function has been changed to return the `Application Support`
+ directory on macOS, as suggested by Apple documentation.
+ - The behavior of the `config_dir` function on non-macOS platforms has not been changed.
+ - If you have used the `config_dir` function to store files, it may be necessary to write code
+ that migrates the files to the new location on macOS.<br/>
+ (Alternative: change uses of the `config_dir` function to uses of the `preference_dir` function
+ to retain the old behavior.)
+- The newly added `preference_dir` function returns the `Preferences` directory on macOS now,
+ which – according to Apple documentation – shall only be used to store .plist files using
+ Apple-proprietary APIs.
+ – `preference_dir` and `config_dir` behave identical on non-macOS platforms.
+
+### 2
+
+**BREAKING CHANGE** The behavior of deactivated, missing or invalid [_XDG User Dirs_](https://www.freedesktop.org/wiki/Software/xdg-user-dirs/)
+entries on Linux has been improved (contributed by @tmiasko, thank you!):
+
+- Version 1 returned the user's home directory (`Some($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.