go.nvim

A modern go neovim plugin based on treesitter, nvim-lsp, dap debugger and AI. It is written in Lua and async as much as possible. PR & Suggestions are welcome.

The plugin covers most features required for a gopher.

LSP & Navigation

• gopls commands: fillstruct, organize imports, list modules/packages, gc_details, generate, change signature, etc.
• All GoToXxx (reference, implementation, definition, doc, peek code/doc, etc.) via gopls/lspconfig. Check navigator.lua for a floating UI experience
• Show interface implementations with virtual text
• Inlay hints (gopls 0.9+; enabled by default in 0.10+)
• CodeLens & CodeAction support

Build, Test & Coverage

• Async build/make/test with libuv job wrapper
• Test with go test, gotestsum, or ginkgo — including floaterm support
• Generate unit tests with gotests (table-driven, testify)
• Test coverage: run coverage, display signs, and show function metrics
• Smart build-tag detection for debug/test runs (e.g. //go:build integration)

Code Generation & Refactoring

• GoIfErr, GoFillStruct, GoFillSwitch, GoFixPlurals, GoGenReturn — powered by treesitter/go AST
• GoImpl — generate interface method stubs
• GoEnum — generate enum helpers
• GoJson2Struct — convert JSON/YAML to Go structs
• GoMockGen — generate mocks with mockgen
• GoNew — create files/projects from templates (including gonew)
• Struct tag management with gomodifytags

Formatting & Linting

• Format via LSP (gopls) or CLI (gofumpt, goimports)
• Lint with golangci-lint (v2) — LSP diagnostics or async background checks

Debugging

• Dlv debug with nvim-dap and nvim-dap-ui — zero-config Go adapter included
• Load VSCode launch.json configurations

AI-Powered

• GoAI — natural-language command dispatcher (translates natural-language into go.nvim commands via Copilot/OpenAI).
• GoCmtAI — generate doc comments with AI for the declaration at cursor
• GoDocAI — AI-powered documentation: find symbols by vague name and generate rich docs from source
• GoCodeReview — AI code review for files, selections, or diffs; results populate the quickfix list
• GoAIChat — ask questions about Go code with AI; auto-includes function context and LSP references

Documentation & Navigation

• GoDoc / GoDocBrowser — view docs in a float or browser
• GoCheat — cheat sheets from cheat.sh
• GoAlt / GoAltV / GoAltS — switch between test and implementation files
• GoPkgOutline / GoPkgSymbols — package-level symbol outlines

Comments & Docs

• Auto-generate doc comments for packages, functions, structs, and interfaces (suppresses golint warnings)

Module & Workspace

• GoModTidy, GoModVendor, GoGet, GoWork, etc.
• Gomvp — rename/move packages
• GoVulnCheck — run govulncheck for vulnerability scanning

Syntax & Snippets

• Treesitter-based syntax highlighting and textobjects
• Treesitter highlight injection for SQL, JSON, go template, and gohtmltmpl
• Feature-rich LuaSnip snippets included

Project & Configuration

• Per-project setup via .gonvim/init.lua or launch.json
• Async jobs with libuv throughout

Installation

Use your favorite package manager to install. The dependency treesitter main branch (and optionally, treesitter-objects) should be installed the first time you use it. Also Run TSInstall go to install the go parser if not installed yet. sed is recommended to run this plugin.

lazy.nvim

{
  "ray-x/go.nvim",
  dependencies = {  -- optional packages
    "ray-x/guihua.lua",
    "neovim/nvim-lspconfig",
    "nvim-treesitter/nvim-treesitter",
  },
  opts = function()

    require("go").setup(opts)
    local format_sync_grp = vim.api.nvim_create_augroup("GoFormat", {})
    vim.api.nvim_create_autocmd("BufWritePre", {
      pattern = "*.go",
      callback = function()
      require('go.format').goimports()
      end,
      group = format_sync_grp,
    })
    return {
      -- lsp_keymaps = false,
      -- other options
    }
  end,
  event = {"CmdlineEnter"},
  ft = {"go", 'gomod'},
  build = ':lua require("go.install").update_all_sync()' -- if you need to install/update all binaries
}

The go.nvim load speed is fast and you can enable it by default <img width="479" alt="image" src="https://user-images.githubusercontent.com/1681295/218074895-5182c791-8649-46ad-b18e-8eb1af8c0ffa.png">

Make sure the $GOPATH/bin path is added to your $PATH environment variable. To check this you can run

echo $PATH | grep "$GOPATH/bin"

If nothing shows up, you can add the following to your shell config file:

export PATH=$PATH:$GOPATH/bin

Add format in your vimrc (or lazy.nvim config function).

lua <<EOF
local format_sync_grp = vim.api.nvim_create_augroup("GoFormat", {})
vim.api.nvim_create_autocmd("BufWritePre", {
  pattern = "*.go",
  callback = function()
   require('go.format').goimports()
  end,
  group = format_sync_grp,
})

EOF

To startup/setup the plugin

require('go').setup()

Refer to advance-setup on more installation info.

Screenshots

Add comments

Add/Remove tags

GoTest in floating term

Use:

:GoTermClose

To close the floating term.

SQL/JSON Highlight injection

<img width="718" alt="image" src="https://user-images.githubusercontent.com/1681295/227125827-538c5f3f-298d-4ae1-8762-42dfb92e79f3.png">

Inlay hints

<img width="491" alt="image" src="https://user-images.githubusercontent.com/1681295/240350775-a1d92c06-66d2-4e4b-9225-538cf1a201b2.png">

Usage & Demo

For detailed command usage, demos, screenshots, and examples, see the Usage Guide.

Quick links: Code Format | Build & Test | Debug | AI Code Review | AI Chat | GoImpl | GoDoc | Tags | Mock | All commands

Commands

Check commands.lua on all the commands provided

Gopls commands

Check gopls.lua on all the gopls commands provided, some of them are not exposed to user, but you can still use it in your lua setup.

• list_imports
• add_import
• list_packages
• tidy
• change_signature
• ...

Configuration

For the full default configuration with all options, see the Default Configuration in the Advanced Setup guide.

Minimal setup:

require('go').setup()

To enable AI features:

require('go').setup({
  ai = {
    enable = true,
    provider = 'copilot', -- or 'openai'
  },
})

To use gopls setup provided by go.nvim:

require('go').setup({
  lsp_cfg = true,
})

Project setup

go.nvim allow you override your setup by a project file. Put .gonvim/init.lua in your root folder. It is a small lua script and will be run durning go.setup(). The return value is used to override go.nvim setup. The sample project setup. You can check the youtube video here on how to use this feature.

-- .gonvim/init.lua project config

return {
  go = "go", -- set to go1.18beta1 if necessary
  goimports = "gopls", -- if set to 'gopls' will use gopls format, also goimports
  gofmt = "gofumpt", -- if set to gopls will use gopls format
  null_ls_document_formatting_disable = true
}

This will override your global go.nvim setup

Advanced Setup

For LSP/gopls configuration, text objects, LuaSnip snippets, mason-lspconfig integration, null-ls, treesitter highlighting, and sample vimrc, see the Advanced Setup Guide.

Other plugins that you may like

• goplay
• a different way to highlight coverage results

Running plugin test / github action locally

If you'd like to commit to this project, and would like to run unit tests, you can run the following command:

XDG_CONFIG_HOME=/tmp/nvim-test make localtestfile

this will run the following commands in headless mode

make setup # install plenary etc
nvim --headless