kickstart.nvim/lua/kickstart/plugins/lspconfig.lua

return {
  {
    'folke/lazydev.nvim',
    ft = 'lua',
    opts = {
      library = {
        { path = '${3rd}/luv/library', words = { 'vim%.uv' } },
      },
    },
  },
  {
    -- Main LSP Configuration using native vim.lsp.config (NeoVIM 0.12+)
    'mason-org/mason.nvim',
    dependencies = {
      'WhoIsSethDaniel/mason-tool-installer.nvim',
      { 'j-hui/fidget.nvim', opts = {} },
      'saghen/blink.cmp',
    },
    config = function()
      -- Diagnostic Config
      -- See :help vim.diagnostic.Opts
      vim.diagnostic.config {
        severity_sort = true,
        float = { border = 'rounded', source = 'if_many' },
        underline = { severity = vim.diagnostic.severity.ERROR },
        signs = vim.g.have_nerd_font and {
          text = {
            [vim.diagnostic.severity.ERROR] = '󰅚 ',
            [vim.diagnostic.severity.WARN] = '󰀪 ',
            [vim.diagnostic.severity.INFO] = '󰋽 ',
            [vim.diagnostic.severity.HINT] = '󰌶 ',
          },
        } or {},
        virtual_text = {
          source = 'if_many',
          spacing = 2,
          format = function(diagnostic)
            local diagnostic_message = {
              [vim.diagnostic.severity.ERROR] = diagnostic.message,
              [vim.diagnostic.severity.WARN] = diagnostic.message,
              [vim.diagnostic.severity.INFO] = diagnostic.message,
              [vim.diagnostic.severity.HINT] = diagnostic.message,
            }
            return diagnostic_message[diagnostic.severity]
          end,
        },
      }

      -- Setup Mason for server installation
      require('mason').setup()

      -- Get blink.cmp capabilities to share with all LSP servers
      local capabilities = require('blink.cmp').get_lsp_capabilities()

      -- Configure global LSP settings for all servers
      vim.lsp.config('*', {
        capabilities = capabilities,
      })

      -- Configure individual LSP servers using vim.lsp.config()
      vim.lsp.config('lua_ls', {
        cmd = { 'lua-language-server' },
        filetypes = { 'lua' },
        root_markers = { '.luarc.json', '.luarc.jsonc', '.stylua.toml', '.git' },
        settings = {
          Lua = {
            completion = {
              callSnippet = 'Replace',
            },
          },
        },
      })

      vim.lsp.config('ty', {
        cmd = { 'ty', 'server' },
        filetypes = { 'python' },
        root_markers = { 'ty.toml', 'pyproject.toml', '.git' },
      })

      vim.lsp.config('ruff', {
        cmd = { 'ruff', 'server' },
        filetypes = { 'python' },
        root_markers = { 'ruff.toml', 'pyproject.toml', '.git' },
      })

      vim.lsp.config('docker_compose_language_service', {
        cmd = { 'docker-compose-langserver', '--stdio' },
        filetypes = { 'yaml.docker-compose' },
        root_markers = { 'docker-compose.yml', 'docker-compose.yaml', '.git' },
      })

      -- Enable all configured LSP servers
      vim.lsp.enable({ 'lua_ls', 'ty', 'ruff', 'docker_compose_language_service' })

      -- Setup mason-tool-installer for formatters and other tools
      require('mason-tool-installer').setup {
        ensure_installed = {
          'stylua', -- Used to format Lua code
        },
      }

      -- LspAttach: Setup custom keybindings and behaviors
      vim.api.nvim_create_autocmd('LspAttach', {
        group = vim.api.nvim_create_augroup('kickstart-lsp-attach', { clear = true }),
        callback = function(event)
          local map = function(keys, func, desc, mode)
            mode = mode or 'n'
            vim.keymap.set(mode, keys, func, { buffer = event.buf, desc = 'LSP: ' .. desc })
          end

          local client = vim.lsp.get_client_by_id(event.data.client_id)

          -- Rename the variable under your cursor.
          --  Most Language Servers support renaming across files, etc.
          map('grn', vim.lsp.buf.rename, '[R]e[n]ame')

          -- Execute a code action, usually your cursor needs to be on top of an error
          -- or a suggestion from your LSP for this to activate.
          map('gra', vim.lsp.buf.code_action, '[G]oto Code [A]ction', { 'n', 'x' })

          -- Find references for the word under your cursor (with Telescope).
          map('grr', require('telescope.builtin').lsp_references, '[G]oto [R]eferences')

          -- Jump to the implementation of the word under your cursor.
          --  Useful when your language has ways of declaring types without an actual implementation.
          map('gri', require('telescope.builtin').lsp_implementations, '[G]oto [I]mplementation')

          -- Jump to the definition of the word under your cursor.
          --  This is where a variable was first declared, or where a function is defined, etc.
          --  To jump back, press <C-t>.
          map('grd', require('telescope.builtin').lsp_definitions, '[G]oto [D]efinition')

          map('grD', vim.lsp.buf.declaration, '[G]oto [D]eclaration')

          -- Fuzzy find all the symbols in your current document.
          --  Symbols are things like variables, functions, types, etc.
          map('gO', require('telescope.builtin').lsp_document_symbols, 'Open Document Symbols')

          -- Fuzzy find all the symbols in your current workspace.
          --  Similar to document symbols, except searches over your entire project.
          map('gW', require('telescope.builtin').lsp_dynamic_workspace_symbols, 'Open Workspace Symbols')

          -- Jump to the type of the word under your cursor.
          --  Useful when you're not sure what type a variable is and you want to see
          --  the definition of its *type*, not where it was *defined*.
          map('grt', require('telescope.builtin').lsp_type_definitions, '[G]oto [T]ype Definition')

          -- Document highlight: highlights references of the word under your cursor when cursor rests there.
          --    See `:help CursorHold` for information about when this is executed
          if client and client:supports_method(vim.lsp.protocol.Methods.textDocument_documentHighlight, event.buf) then
            local highlight_augroup = vim.api.nvim_create_augroup('kickstart-lsp-highlight', { clear = false })
            vim.api.nvim_create_autocmd({ 'CursorHold', 'CursorHoldI' }, {
              buffer = event.buf,
              group = highlight_augroup,
              callback = vim.lsp.buf.document_highlight,
            })

            vim.api.nvim_create_autocmd({ 'CursorMoved', 'CursorMovedI' }, {
              buffer = event.buf,
              group = highlight_augroup,
              callback = vim.lsp.buf.clear_references,
            })

            vim.api.nvim_create_autocmd('LspDetach', {
              group = vim.api.nvim_create_augroup('kickstart-lsp-detach', { clear = true }),
              callback = function(event2)
                vim.lsp.buf.clear_references()
                vim.api.nvim_clear_autocmds { group = 'kickstart-lsp-highlight', buffer = event2.buf }
              end,
            })
          end

          -- Inlay hints: toggle with <leader>th if the language server supports them
          if client and client:supports_method(vim.lsp.protocol.Methods.textDocument_inlayHint, event.buf) then
            map('<leader>th', function()
              vim.lsp.inlay_hint.enable(not vim.lsp.inlay_hint.is_enabled { bufnr = event.buf })
            end, '[T]oggle Inlay [H]ints')
          end
        end,
      })

    end,
  },
}

-- vim: ts=2 sts=2 sw=2 et