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.

Table Of Contents

• Installation
  • Build Options
  • Configuration Options
• Usage
  • VSCode
• Related Projects
• License

Installation

Installing zls is pretty simple;

git clone --recurse-submodules https://github.com/zigtools/zls
cd zls
zig build

Build Options

Option	Type	Default Value	What it Does
-Ddata_version	string (master or 0.6.0)	0.6.0	The data file version. This selects the files in the src/data folder that correspond to the Zig version being served.

Then, you can use the zls executable in an editor of your choice that has a Zig language server client!

Note:zls itself must be built using the master branch of zig currently due to a bug in std.json which was fixed after 0.6.0 was released.

Configuration Options

You can configure zls by providing a zls.json file.
zls will look for a zls.json configuration file in multiple locations with the following priority:

• In the folders open in your workspace (this applies for files in those folders)
• In the local configuration folder of your OS (as provided by known-folders)
• In the same directory as the executable

The following options are currently available.

Option	Type	Default value	What it Does
enable_snippets	bool	false	Enables snippet completion, set to false for compatibility with language clients that do not support snippets (such as ale).
zig_lib_path	?[]const u8	null	zig library path, e.g. /path/to/zig/lib/zig, used to analyze std library imports.
warn_style	bool	false	Enables warnings for style guideline mismatches

Usage

zls is in its early stages, with a full analysis/completion engine coming soon, but it is still usable.

VSCode

Install the zls-vscode extension from here.

Related Projects

• sublime-zig-language by @prime31
  • Supports basic language features
  • Uses data provided by src/data to perform builtin autocompletion
• zig-lsp by @xackus
  • Inspiration for zls
• known-folders by @ziglibs
  • Provides API to acces known folders on Linux, Windows and Mac OS

License

MIT