349 lines
13 KiB
Markdown
349 lines
13 KiB
Markdown
|
|
|
|
[](https://github.com/zigtools/zls/actions)
|
|
|
|
|
|
**Need support? Wanna help out? Join our [Discord server](https://discord.gg/5m5U3qpUhk)!**
|
|
|
|
Zig Language Server, or `zls`, is a language server for Zig. The Zig wiki states that "The Zig community is decentralized" and "There is no concept of 'official' or 'unofficial'", so instead of calling `zls` unofficial, and I'm going to call it a cool option, one of [many](https://github.com/search?q=zig+language+server).
|
|
|
|
<!-- omit in toc -->
|
|
## Table Of Contents
|
|
|
|
- [Installation](#installation)
|
|
- [Installing binaries](#installing-binaries)
|
|
- [MacOS](#macos)
|
|
- [Linux](#linux)
|
|
- [From Source](#from-source)
|
|
- [Build Options](#build-options)
|
|
- [Updating Data Files](#updating-data-files)
|
|
- [Configuration Options](#configuration-options)
|
|
- [Features](#features)
|
|
- [VS Code](#vs-code)
|
|
- [Sublime Text](#sublime-text)
|
|
- [Sublime Text 3](#sublime-text-3)
|
|
- [Sublime Text 4](#sublime-text-4)
|
|
- [Kate](#kate)
|
|
- [Neovim/Vim8](#neovimvim8)
|
|
- [CoC](#coc)
|
|
- [YouCompleteMe](#youcompleteme)
|
|
- [nvim-lspconfig](#nvim-lspconfig)
|
|
- [LanguageClient-neovim](#languageclient-neovim)
|
|
- [Emacs](#emacs)
|
|
- [Doom Emacs](#doom-emacs)
|
|
- [Spacemacs](#spacemacs)
|
|
- [Related Projects](#related-projects)
|
|
- [License](#license)
|
|
|
|
## Installation
|
|
|
|
Installation starts with downloading an official release from the [Releases page](https://github.com/zigtools/zls/releases).
|
|
Up to date builds from master branch are also available in the [latest successful CI run](https://github.com/zigtools/zls/actions), contained in the `builds` artifact.
|
|
|
|
See [Downloading and Building ZLS](https://github.com/zigtools/zls/wiki/Downloading-and-Building-ZLS) on the Wiki, or the page about [using ZLS with Visual Studio Code](https://github.com/zigtools/zls/wiki/Installing-for-Visual-Studio-Code) for a guide to help get `zls` running in your editor.
|
|
|
|
### Installing binaries
|
|
|
|
#### MacOS
|
|
|
|
You can install the latest release into `$HOME/zls` using e.g.:
|
|
|
|
```sh
|
|
brew install xz
|
|
mkdir $HOME/zls && cd $HOME/zls && curl -L https://github.com/zigtools/zls/releases/download/0.9.0/x86_64-macos.tar.xz | tar -xJ --strip-components=1 -C .
|
|
```
|
|
|
|
#### Linux
|
|
|
|
You can install the latest release into `$HOME/zls` using e.g.:
|
|
|
|
```bash
|
|
sudo apt install xz-utils
|
|
mkdir $HOME/zls && cd $HOME/zls && curl -L https://github.com/zigtools/zls/releases/download/0.9.0/x86_64-linux.tar.xz | tar -xJ --strip-components=1 -C .
|
|
```
|
|
|
|
### From Source
|
|
|
|
Building `zls` is very easy. You will need [a build of Zig master](https://ziglang.org/download/) to build zls.
|
|
|
|
```bash
|
|
git clone --recurse-submodules https://github.com/zigtools/zls
|
|
cd zls
|
|
zig build -Drelease-safe
|
|
./zig-out/bin/zls config # Configure ZLS
|
|
```
|
|
|
|
*For detailed building instructions, see the Wiki page about [Cloning With Git](https://github.com/zigtools/zls/wiki/Downloading-and-Building-ZLS#cloning-with-git).*
|
|
|
|
#### Build Options
|
|
|
|
<!-- When updating this table, be sure to copy changes to the Wiki page about building from source. -->
|
|
<!-- If this table grows too large, then delete this one and move it all over to the Wiki page about building from source. -->
|
|
| Option | Type | Default Value | What it Does |
|
|
| --- | --- | --- | --- |
|
|
| `-Ddata_version` | `string` (like 0.7.1 or 0.9.0) | master | The data file version. This selects the files in the `src/data` folder that correspond to the Zig version being served.|
|
|
|
|
#### Updating Data Files
|
|
|
|
There is a `generate-data.py` in the `src/data` folder, run this file to update data files.
|
|
It writes to stdout and you can redirect output to a zig file like `master.zig`. By default it generates data file for `master`, but can be configured to generate for a different version by modifying the `zig_version` variable. Files generated by this tool **contains** formatting information.
|
|
|
|
There is also a `generate-data.js` in the `src/data` folder, you'll need to run this inside a Chrome DevTools console and copy the output. Files generated by this tool **does not contain** formatting information.
|
|
|
|
### Configuration Options
|
|
|
|
You can configure zls by running `zls config` or manually creating your own `zls.json` configuration file.
|
|
zls will look for a zls.json configuration file in multiple locations with the following priority:
|
|
- In the local configuration folder of your OS (as provided by [known-folders](https://github.com/ziglibs/known-folders/blob/master/RESOURCES.md#folder-list))
|
|
- In the global configuration folder of your OS (as provided by [known-folders](https://github.com/ziglibs/known-folders/blob/master/RESOURCES.md#folder-list))
|
|
|
|
The following options are currently available.
|
|
|
|
| Option | Type | Default value | What it Does |
|
|
| --- | --- | --- | --- |
|
|
| `enable_snippets` | `bool` | `false` | Enables snippet completions when the client also supports them. |
|
|
| `enable_unused_variable_warnings` | `bool` | `false`| Enables warnings for local variables that aren't used. |
|
|
| `enable_import_embedfile_argument_completions` | `bool` | `false` | Whether to enable import/embedFile argument completions |
|
|
| `zig_lib_path` | `?[]const u8` | `null` | zig library path, e.g. `/path/to/zig/lib/zig`, used to analyze std library imports. |
|
|
| `zig_exe_path` | `?[]const u8` | `null` | zig executable path, e.g. `/path/to/zig/zig`, used to run the custom build runner. If `null`, zig is looked up in `PATH`. Will be used to infer the zig standard library path if none is provided. |
|
|
| `warn_style` | `bool` | `false` | Enables warnings for style *guideline* mismatches |
|
|
| `build_runner_path` | `?[]const u8` | `null` | Path to the build_runner.zig file provided by zls. `null` is equivalent to `${executable_directory}/build_runner.zig` |
|
|
| `global_cache_path` | `?[]const u8` | `null` | Path to a directroy that will be used as zig's cache. `null` is equivalent to `${KnownFloders.Cache}/zls` |
|
|
| `enable_semantic_tokens` | `bool` | `true` | Enables semantic token support when the client also supports it. |
|
|
| `enable_inlay_hints` | `bool` | `false` | Enables inlay hint support when the client also supports it. |
|
|
| `operator_completions` | `bool` | `true` | Enables `*` and `?` operators in completion lists. |
|
|
|`include_at_in_builtins`|`bool`|`false`| Whether the @ sign should be part of the completion of builtins.
|
|
|`max_detail_length`|`usize`|`1024 * 1024`| The detail field of completions is truncated to be no longer than this (in bytes).
|
|
| `skip_std_references` | `bool` | `false` | When true, skips searching for references in std. Improves lookup speed for functions in user's code. Renaming and go-to-definition will continue to work as is.
|
|
|
|
## Features
|
|
|
|
`zls` supports most language features, including simple type function support, using namespace, payload capture type resolution, custom packages and others.
|
|
Notable language features that are not currently implemented include `@cImport` as well as most forms of compile time evaluation.
|
|
|
|
The following LSP features are supported:
|
|
- Completions
|
|
- Hover
|
|
- Goto definition/declaration
|
|
- Document symbols
|
|
- Find references
|
|
- Rename symbol
|
|
- Formatting using `zig fmt`
|
|
- Semantic token highlighting (implemented by a few clients including VS Code, kak and emacs lsp-mode)
|
|
- Inlay hints (implemented by VS Code)
|
|
|
|
You can install `zls` using the instuctions for your text editor below:
|
|
|
|
### VS Code
|
|
|
|
Install the `zls-vscode` extension from [here](https://github.com/zigtools/zls-vscode/releases) or via the extensions menu.
|
|
It will install `zls` if it is not found in your `PATH`
|
|
|
|
### Sublime Text
|
|
|
|
- Install the `LSP` package from [here](https://github.com/sublimelsp/LSP/releases) or via Package Control.
|
|
- Add this snippet to `LSP's` user settings:
|
|
|
|
#### Sublime Text 3
|
|
|
|
```json
|
|
{
|
|
"clients": {
|
|
"zig": {
|
|
"command": ["zls"],
|
|
"enabled": true,
|
|
"languageId": "zig",
|
|
"scopes": ["source.zig"],
|
|
"syntaxes": ["Packages/Zig Language/Syntaxes/Zig.tmLanguage"]
|
|
}
|
|
}
|
|
}
|
|
```
|
|
|
|
#### Sublime Text 4
|
|
|
|
```json
|
|
{
|
|
"clients": {
|
|
"zig": {
|
|
"command": ["zls"],
|
|
"enabled": true,
|
|
"selector": "source.zig"
|
|
}
|
|
}
|
|
}
|
|
```
|
|
|
|
### Kate
|
|
|
|
- Install language support for Zig from [here](https://github.com/ziglang/kde-syntax-highlighting)
|
|
- Enable `LSP client` plugin in Kate settings.
|
|
- Add this snippet to `LSP client's` user settings (e.g. /$HOME/.config/kate/lspclient)
|
|
(or paste it in `LSP client's` GUI settings)
|
|
|
|
```json
|
|
{
|
|
"servers": {
|
|
"zig": {
|
|
"command": ["zls"],
|
|
"url": "https://github.com/zigtools/zls",
|
|
"highlightingModeRegex": "^Zig$"
|
|
}
|
|
}
|
|
}
|
|
```
|
|
|
|
### Neovim/Vim8
|
|
#### CoC
|
|
|
|
- Install the CoC engine from [here](https://github.com/neoclide/coc.nvim).
|
|
|
|
Then choose one of the following two ways
|
|
|
|
1. Use extension
|
|
|
|
Run `:CocInstall coc-zls` to install [coc-zls](https://github.com/xiyaowong/coc-zls),
|
|
this extension supports the same functionality as the VS Code extension
|
|
|
|
2. Manually register
|
|
```json
|
|
{
|
|
"languageserver": {
|
|
"zls" : {
|
|
"command": "command_or_path_to_zls",
|
|
"filetypes": ["zig"]
|
|
}
|
|
}
|
|
}
|
|
```
|
|
|
|
#### YouCompleteMe
|
|
- Install YouCompleteMeFrom [here](https://github.com/ycm-core/YouCompleteMe.git).
|
|
- Add these lines to your vimrc:
|
|
|
|
```vim
|
|
"ensure zig is a recognized filetype
|
|
autocmd BufNewFile,BufRead *.zig set filetype=zig
|
|
|
|
let g:ycm_language_server =
|
|
\ [
|
|
\{
|
|
\ 'name': 'zls',
|
|
\ 'filetypes': [ 'zig' ],
|
|
\ 'cmdline': [ '/path/to/zls_executable' ]
|
|
\ }
|
|
\ ]
|
|
```
|
|
|
|
#### nvim-lspconfig
|
|
|
|
Requires Nvim 0.5 (HEAD)!
|
|
|
|
- Install nvim-lspconfig from [here](https://github.com/neovim/nvim-lspconfig).
|
|
- Install zig.vim from [here](https://github.com/ziglang/zig.vim).
|
|
|
|
nvim-lspconfig already ships a configuration for zls. A simple `init.vim` might look like this:
|
|
```vim
|
|
call plug#begin('~/.config/nvim/plugged')
|
|
Plug 'neovim/nvim-lspconfig'
|
|
Plug 'nvim-lua/completion-nvim'
|
|
Plug 'ziglang/zig.vim'
|
|
call plug#end()
|
|
|
|
:lua << EOF
|
|
local lspconfig = require('lspconfig')
|
|
|
|
local on_attach = function(_, bufnr)
|
|
vim.api.nvim_buf_set_option(bufnr, 'omnifunc', 'v:lua.vim.lsp.omnifunc')
|
|
require('completion').on_attach()
|
|
end
|
|
|
|
local servers = {'zls'}
|
|
for _, lsp in ipairs(servers) do
|
|
lspconfig[lsp].setup {
|
|
on_attach = on_attach,
|
|
}
|
|
end
|
|
EOF
|
|
|
|
" Set completeopt to have a better completion experience
|
|
set completeopt=menuone,noinsert,noselect
|
|
|
|
" Enable completions as you type
|
|
let g:completion_enable_auto_popup = 1
|
|
```
|
|
|
|
#### LanguageClient-neovim
|
|
|
|
- Install the LanguageClient-neovim from [here](https://github.com/autozimu/LanguageClient-neovim)
|
|
- Edit your neovim configuration and add `zls` for zig filetypes:
|
|
|
|
```vim
|
|
let g:LanguageClient_serverCommands = {
|
|
\ 'zig': ['~/code/zls/zig-out/bin/zls'],
|
|
\ }
|
|
```
|
|
|
|
### Emacs
|
|
|
|
- Install [lsp-mode](https://github.com/emacs-lsp/lsp-mode) from melpa
|
|
- [zig mode](https://github.com/ziglang/zig-mode) is also useful
|
|
|
|
```elisp
|
|
;; Setup lsp-mode as desired.
|
|
;; See https://emacs-lsp.github.io/lsp-mode/page/installation/ for more information.
|
|
(require 'lsp-mode)
|
|
|
|
;; Either place zls in your PATH or add the following:
|
|
(setq lsp-zig-zls-executable "<path to zls>")
|
|
```
|
|
|
|
### Doom Emacs
|
|
|
|
- Enable the `lsp` module
|
|
- Install the [zig-mode](https://github.com/ziglang/zig-mode) package (add `(package! zig-mode)` to your `packages.el` file
|
|
- Add the following to your `config.el`:
|
|
|
|
```elisp
|
|
(use-package! zig-mode
|
|
:hook ((zig-mode . lsp-deferred))
|
|
:custom (zig-format-on-save nil)
|
|
:config
|
|
(after! lsp-mode
|
|
(add-to-list 'lsp-language-id-configuration '(zig-mode . "zig"))
|
|
(lsp-register-client
|
|
(make-lsp-client
|
|
:new-connection (lsp-stdio-connection "<path to zls>")
|
|
:major-modes '(zig-mode)
|
|
:server-id 'zls))))
|
|
```
|
|
|
|
### Spacemacs
|
|
|
|
- Add `lsp` and `zig` to `dotspacemacs-configuration-layers` in your `.spacemacs` file.
|
|
- If you don't have `zls` in your `PATH`, add the following to `dotspacemacs/user-config` in your
|
|
`.spacemacs` file:
|
|
|
|
```elisp
|
|
(setq lsp-zig-zls-executable "<path to zls>")
|
|
```
|
|
|
|
### Helix
|
|
|
|
- Just add `zls` to your `PATH`.
|
|
- run `hx --health` to check if helix found `zls`.
|
|
|
|
## Related Projects
|
|
|
|
- [`sublime-zig-language` by @prime31](https://github.com/prime31/sublime-zig-language)
|
|
- Supports basic language features
|
|
- Uses data provided by `src/data` to perform builtin autocompletion
|
|
- [`zig-lsp` by @xackus](https://github.com/xackus/zig-lsp)
|
|
- Inspiration for `zls`
|
|
- [`known-folders` by @ziglibs](https://github.com/ziglibs/known-folders)
|
|
- Provides API to access known folders on Linux, Windows and Mac OS
|
|
|
|
## License
|
|
|
|
MIT
|