LazyVim/lua/lazyvim/plugins/extras/lang/go.lua

return {
  recommended = function()
    return LazyVim.extras.wants({
      ft = { "go", "gomod", "gowork", "gotmpl" },
      root = { "go.work", "go.mod" },
    })
  end,
  {
    "nvim-treesitter/nvim-treesitter",
    opts = { ensure_installed = { "go", "gomod", "gowork", "gosum" } },
  },
  {
    "neovim/nvim-lspconfig",
    opts = {
      servers = {
        gopls = {
          settings = {
            gopls = {
              gofumpt = true,
              codelenses = {
                gc_details = false,
                generate = true,
                regenerate_cgo = true,
                run_govulncheck = true,
                test = true,
                tidy = true,
                upgrade_dependency = true,
                vendor = true,
              },
              hints = {
                assignVariableTypes = true,
                compositeLiteralFields = true,
                compositeLiteralTypes = true,
                constantValues = true,
                functionTypeParameters = true,
                parameterNames = true,
                rangeVariableTypes = true,
              },
              analyses = {
                fieldalignment = true,
                nilness = true,
                unusedparams = true,
                unusedwrite = true,
                useany = true,
              },
              usePlaceholders = true,
              completeUnimported = true,
              staticcheck = true,
              directoryFilters = { "-.git", "-.vscode", "-.idea", "-.vscode-test", "-node_modules" },
              semanticTokens = true,
            },
          },
        },
      },
      setup = {
        gopls = function(_, opts)
          -- workaround for gopls not supporting semanticTokensProvider
          -- https://github.com/golang/go/issues/54531#issuecomment-1464982242
          LazyVim.lsp.on_attach(function(client, _)
            if not client.server_capabilities.semanticTokensProvider then
              local semantic = client.config.capabilities.textDocument.semanticTokens
              client.server_capabilities.semanticTokensProvider = {
                full = true,
                legend = {
                  tokenTypes = semantic.tokenTypes,
                  tokenModifiers = semantic.tokenModifiers,
                },
                range = true,
              }
            end
          end, "gopls")
          -- end workaround
        end,
      },
    },
  },
  -- Ensure Go tools are installed
  {
    "williamboman/mason.nvim",
    opts = { ensure_installed = { "goimports", "gofumpt" } },
  },
  {
    "nvimtools/none-ls.nvim",
    optional = true,
    dependencies = {
      {
        "williamboman/mason.nvim",
        opts = { ensure_installed = { "gomodifytags", "impl" } },
      },
    },
    opts = function(_, opts)
      local nls = require("null-ls")
      opts.sources = vim.list_extend(opts.sources or {}, {
        nls.builtins.code_actions.gomodifytags,
        nls.builtins.code_actions.impl,
        nls.builtins.formatting.goimports,
        nls.builtins.formatting.gofumpt,
      })
    end,
  },
  {
    "stevearc/conform.nvim",
    optional = true,
    opts = {
      formatters_by_ft = {
        go = { "goimports", "gofumpt" },
      },
    },
  },
  {
    "mfussenegger/nvim-dap",
    optional = true,
    dependencies = {
      {
        "williamboman/mason.nvim",
        opts = { ensure_installed = { "delve" } },
      },
      {
        "leoluz/nvim-dap-go",
        opts = {},
      },
    },
  },
  {
    "nvim-neotest/neotest",
    optional = true,
    dependencies = {
      "fredrikaverpil/neotest-golang",
    },
    opts = {
      adapters = {
        ["neotest-golang"] = {
          -- Here we can set options for neotest-golang, e.g.
          -- go_test_args = { "-v", "-race", "-count=1", "-timeout=60s" },
          dap_go_enabled = true, -- requires leoluz/nvim-dap-go
        },
      },
    },
  },

  -- Filetype icons
  {
    "echasnovski/mini.icons",
    opts = {
      file = {
        [".go-version"] = { glyph = "", hl = "MiniIconsBlue" },
      },
      filetype = {
        gotmpl = { glyph = "󰟓", hl = "MiniIconsGrey" },
      },
    },
  },
}