【Neovim 0.11.1】lspconfig x mise のお手軽 LSP 設定とWebフロントエンド開発者向けの設定

# ~/.config/mise/config.toml
[tools]
lua-language-server = "3.14.0"
stylua = "2.1.0"

-- ~/.config/nvim/init.lua

-- Lazy.nvim のインストールは省略
-- https://lazy.folke.io/installation

-- エラーなどの表示
vim.diagnostic.config({ virtual_text = true })

require("lazy").setup({
  defaults = {
    lazy = true,
  },
  spec = {
    -- 動画だと tokyonight テーマを使っています。
    -- { "folke/tokyonight.nvim", ... }
    {
      "neovim/nvim-lspconfig",
      lazy = false,
      init = function()
        vim.lsp.enable({
          "lua_ls",
        })
      end,
    },
    {
      "stevearc/conform.nvim",
      init = function()
        vim.api.nvim_create_autocmd("BufWritePre", {
          pattern = "*",
          callback = function(args)
            require("conform").format({ bufnr = args.buf })
          end,
        })
      end,
      --- @type conform.setupOpts
      opts = {
        formatters_by_ft = {
          lua = { "stylua" },
        },
        format_on_save = {
          timeout_ms = 500,
          lsp_format = "fallback",
        },
      },
    },
    {
      "saghen/blink.cmp",
      version = "*",
      event = { "InsertEnter" },
      opts = {},
    },
  },
})

# ~/.config/mise/config.toml
[tools]
lua-language-server = "3.14.0"
stylua = "2.1.0"
+ "npm:@biomejs/biome" = "2.0.0-beta.5"
+ "npm:typescript-language-server" = "4.3.4"

# ~/.config/nvim/init.lua
require("lazy").setup({
  ...
  spec = {
    {
      "neovim/nvim-lspconfig",
      lazy = false,
      init = function()
        vim.lsp.enable({
          "lua_ls",
+         "ts_ls",
+         "biome"
        })
      end,
    },
    {
      "stevearc/conform.nvim",
      ...
      opts = {
        formatters_by_ft = {
          lua = { "stylua" },
+         typescript = { "biome" },
        },
        format_on_save = {
          timeout_ms = 500,
          lsp_format = "fallback",
        },
      },
    },
  ...
})

-- ~/.config/nvim/after/lsp/denols.lua
--- @type vim.lsp.Config
return {
  root_markers = { 'deno.json', 'deno.jsonc' },
  workspace_required = true,
}

-- ~/.config/nvim/after/lsp/ts_ls.lua
--- @type vim.lsp.Config
return {
  init_options = {
    tsserver = {
      path = vim.fn.exepath("tsserver"), -- ないと動かないケースがあったけど、この指定で正しいのか不明
    },
  },
  root_dir = function(bufnr, on_dir)
    -- deno 関連のファイルがある場合は、ts_ls を起動しない
    local deno_files = {
      "deno.json",
      "deno.jsonc",
    }
    local deno_root = vim.fs.root(bufnr, deno_files)
    if deno_root ~= nil then
      return
    end

    local root = vim.fs.root(bufnr, {
      "tsconfig.json",
      "jsconfig.json",
      "package.json",
      ".git",
    })
    if root then
      on_dir(root)
    end
  end,
  on_attach = function(client, bufnr)
    require("twoslash-queries").attach(client, bufnr)
  end,
}

  {
    "neovim/nvim-lspconfig",
    lazy = false,
    init = function()
      local capabilities = vim.lsp.protocol.make_client_capabilities()
      capabilities.general = {
        positionEncodings = { "utf-16" },
      }

      vim.lsp.config("*", {
        offset_encoding = "utf-16",
        capabilities = capabilities,
      })

      vim.lsp.enable({
        "lua_ls",
        "ts_ls",
        "eslint",
        "biome"
      })
    end,
  },

vim.lsp: Position Encodings ~

- ⚠️ WARNING Found buffers attached to multiple clients with different position encodings.
  - Buffer 4: UTF-8 (client id(s): 2), UTF-16 (client id(s): 1, 3, 4, 5)
  - ADVICE:
    - Use the positionEncodings client capability to ensure all clients use the same position encoding

--- @type conform.setupOpts
{
  formatters_by_ft = {
    typescript = { "biome", "prettierd", "eslint_d" },
    typescriptreact = { "biome", "prettierd", "eslint_d" },
    markdown = { "prettierd" },
  },
  format_on_save = { ... },
  formatters = {
    biome = {
      require_cwd = true,
    },
    eslint_d = {
      require_cwd = true,
    },
    prettierd = {
      -- biome が有効な場合は prettierd を無効化する
      condition = function(_, ctx)
        local biome_available = require("conform").get_formatter_info("biome").available
        local formatters = require("conform").list_formatters_for_buffer(ctx.buf)
        return not (biome_available and vim.tbl_contains(formatters, "biome"))
      end,
    },
  }
}