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path: root/public/nvim/.nvim/lua/plugins/lang/go.lua
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return {
  {
    "fatih/vim-go",
    init = function()
      vim.g.go_fmt_command = "gofumpt"
    end,
    ft = { "go" },
  },

  {
    "nvim-treesitter/nvim-treesitter",
    opts = function(_, opts)
      if type(opts) == "table" then
        opts.ensure_installed = opts.ensure_installed or {}
        vim.list_extend(opts.ensure_installed, {
          "go",
          "gomod",
          "gosum",
        })
      end
    end,
  },

  {
    "jose-elias-alvarez/null-ls.nvim",
    opts = function(_, opts)
      if type(opts) == "table" then
        opts.sources = opts.sources or {}
        local null_ls = require("null-ls")
        vim.list_extend(opts.sources, {
          null_ls.builtins.diagnostics.golangci_lint,
          null_ls.builtins.formatting.gofumpt, -- Just here because gopls integrated gofumpt doesn't work
        })
      end
    end,
  },

  {
    "neovim/nvim-lspconfig",
    opts = function(_, opts)
      if type(opts) == "table" then
        opts.servers = opts.servers or {}
        opts.servers.gopls = {
            -- Because integrated gofumpt doesn't work
            -- I disable formatting for gopls
            -- Formatting is handled with gofumpt by:
            -- - null-ls on format request
            -- - vim-go on save
            on_attach = function(client, _)
              client.server_capabilities.documentFormattingProvider = false
              client.server_capabilities.documentRangeFormattingProvider = false
            end,
            cmd = { "gopls", "-remote=auto", "serve" }, -- Shared with vim-go's gopls instance
            settings = {
              gopls = {
                buildFlags = { "-tags=integration,unit" }, -- To make packages with those build flags actually work with the LSP
                semanticTokens = false,
                gofumpt = true,                    -- gofumpt formatting, doesn't work
              },
            },
          }
      end
    end,
  },
}