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237 lines
6.8 KiB
Markdown
237 lines
6.8 KiB
Markdown
<h1 align="center">Alacritty</h1>
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<p align="center">
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<img width="200" alt="Alacritty Logo" src="extra/logo/alacritty-term+scanlines.svg">
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</p>
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Alacritty is the fastest terminal emulator in existence. Using the GPU for
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rendering enables optimizations that simply aren't possible without it.
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Alacritty currently supports macOS, Linux, BSD, and Windows.
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<p align="center">
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<img width="600"
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alt="Alacritty running vim inside tmux"
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src="https://cloud.githubusercontent.com/assets/4285147/21585004/2ebd0288-d06c-11e6-95d3-4a2889dbbd6f.png">
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</p>
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## About
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Alacritty is a terminal emulator with a strong focus on simplicity and
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performance. With such a strong focus on performance, included features are
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carefully considered and you can always expect Alacritty to be blazingly fast.
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By making sane choices for defaults, Alacritty requires no additional setup.
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However, it does allow [configuration](#configuration) of many aspects of the
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terminal.
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The software is considered to be at a **beta** level of readiness -- there are
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a few missing features and bugs to be fixed, but it is already used by many as
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a daily driver.
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Precompiled binaries are available from the [GitHub releases page](https://github.com/jwilm/alacritty/releases).
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## Further information
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- [Announcing Alacritty, a GPU-Accelerated Terminal Emulator](https://jwilm.io/blog/announcing-alacritty/) January 6, 2017
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- [A short talk about Alacritty at the Rust Meetup January 2017](https://air.mozilla.org/rust-meetup-january-2017/) (starts at 57:00)
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- [Alacritty Lands Scrollback, Publishes Benchmarks](https://jwilm.io/blog/alacritty-lands-scrollback/) September 17, 2018
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- [Version 0.3.0 Release Announcement](https://blog.christianduerr.com/alacritty_030_announcement) April 07, 2019
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## Installation
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Some operating systems already provide binaries for Alacritty, for everyone
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else the instructions to build Alacritty from source can be found [here](INSTALL.md).
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### Arch Linux
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```sh
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pacman -S alacritty
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```
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### Fedora
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Unofficial builds of stable tags can be found in Fedora Copr:
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[pschyska/alacritty](https://copr.fedorainfracloud.org/coprs/pschyska/alacritty/).
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``` sh
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dnf copr enable pschyska/alacritty
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dnf install alacritty
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```
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If you want to help test pre-releases, you can additionally enable
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[pschyska/alacritty-testing](https://copr.fedorainfracloud.org/coprs/pschyska/alacritty-testing/).
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### Gentoo Linux
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```sh
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emerge x11-terms/alacritty
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```
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### Mageia
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```sh
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urpmi alacritty
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```
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### NixOS
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```sh
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nix-env -iA nixos.alacritty
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```
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### openSUSE Tumbleweed
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```sh
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zypper in alacritty
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```
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### Pop!\_OS / Ubuntu
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> If you're not running Pop!_OS, you'll have to add a third party repository first:
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>
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> ```sh
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> add-apt-repository ppa:mmstick76/alacritty
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> ```
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```sh
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apt install alacritty
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```
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### Solus
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```sh
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eopkg install alacritty
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```
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### Void Linux
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```sh
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xbps-install alacritty
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```
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### FreeBSD
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```sh
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pkg install alacritty
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```
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### macOS
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```sh
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brew cask install alacritty
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```
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Once the cask is installed, it is recommended to setup the [manual page](INSTALL.md#manual-page),
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[shell completions](INSTALL.md#shell-completions), and [terminfo definitions](INSTALL.md#terminfo).
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### Windows
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#### Via [Chocolatey](https://chocolatey.org)
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```batch
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choco install alacritty
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```
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#### Via [Scoop](https://scoop.sh)
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```batch
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scoop bucket add extras
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scoop install alacritty
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```
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### Other
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Prebuilt binaries for Linux, macOS, and Windows can be downloaded from the
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[GitHub releases page](https://github.com/jwilm/alacritty/releases).
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To work properly on Windows, Alacritty requires winpty to emulate UNIX's PTY
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API. The agent is a single binary (`winpty-agent.exe`) which **must** be in
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the same directory as the Alacritty executable and is available through the
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[GitHub releases page](https://github.com/jwilm/alacritty/releases).
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On Windows, Alacritty also requires Microsoft's VC++ redistributable to work
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properly.
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## Configuration
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You can find the default configuration file with documentation for all available
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fields on the [GitHub releases page](https://github.com/jwilm/alacritty/releases) for each release.
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Alacritty looks for the configuration file at the following paths:
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1. `$XDG_CONFIG_HOME/alacritty/alacritty.yml`
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2. `$XDG_CONFIG_HOME/alacritty.yml`
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3. `$HOME/.config/alacritty/alacritty.yml`
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4. `$HOME/.alacritty.yml`
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### Windows
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On Windows the config file is located at:
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`%APPDATA%\alacritty\alacritty.yml`
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## Contributing
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A full guideline about contributing to Alacritty can be found in the
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[`CONTRIBUTING.md`](CONTRIBUTING.md) file.
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## Issues (known, unknown, feature requests, etc.)
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If you run into a problem with Alacritty, please file an issue. If you've got a
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feature request, feel free to ask about it. Please just keep in mind Alacritty
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is focused on simplicity and performance, and not all features are in line with
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that goal.
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Before opening a new issue, please check if it has already been reported.
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There's a chance someone else has already reported it, and you can subscribe to
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that issue to keep up on the latest developments.
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## FAQ
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**_Is it really the fastest terminal emulator?_**
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In the terminals we've [benchmarked](http://github.com/jwilm/vtebench),
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Alacritty is either faster or **way** faster than the others. If you've found a
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case where this isn't true, please report a bug.
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**_Why isn't feature X implemented?_**
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Alacritty has many great features, but not every feature from every other
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terminal. This could be for a number of reasons, but sometimes it's just not a
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good fit for Alacritty. This means you won't find things like tabs or splits
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(which are best left to a window manager or [terminal multiplexer][tmux]) nor
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niceties like a GUI config editor.
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**_macOS + tmux + vim is slow! I thought this was supposed to be fast!_**
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This appears to be an issue outside of terminal emulators; either macOS has an
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IPC performance issue, or either tmux or vim (or both) have a bug. This same
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issue can be seen in `iTerm2` and `Terminal.app`. I've found that if tmux is
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running on another machine which is connected to Alacritty via SSH, this issue
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disappears. Actual throughput and rendering performance are still better in
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Alacritty.
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**_My arrow keys don't work._**
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It sounds like you deleted some key bindings from your config file. Please
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reference the default config file to restore them.
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## IRC
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Alacritty discussion can be found in `#alacritty` on freenode.
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## Wayland
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Wayland is used by default on systems that support it. Using XWayland may
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circumvent Wayland specific issues and can be enabled through:
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```sh
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env WINIT_UNIX_BACKEND=x11 alacritty
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```
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## License
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Alacritty is released under the [Apache License, Version 2.0].
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[Apache License, Version 2.0]: https://github.com/jwilm/alacritty/blob/master/LICENSE-APACHE
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[faq]: https://github.com/jwilm/alacritty#faq
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[tmux]: https://github.com/tmux/tmux
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[Wayland meta issue]: https://github.com/tomaka/winit/issues/306
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