neovim-confs/lua/custom/plugins/lsp.lua

local cmp = require 'cmp' -- this is nvim-cmp
return {
  {
    'neovim/nvim-lspconfig',
    dependencies = {
      -- Automatically install LSPs and related tools to stdpath for Neovim
      { 'williamboman/mason.nvim', config = true }, -- NOTE: Must be loaded before dependants
      'williamboman/mason-lspconfig.nvim',
      'WhoIsSethDaniel/mason-tool-installer.nvim',

      -- Useful status updates for LSP.
      -- NOTE: `opts = {}` is the same as calling `require('fidget').setup({})`
      { 'j-hui/fidget.nvim', opts = {} },

      -- `neodev` configures Lua LSP for your Neovim config, runtime and plugins
      -- used for completion, annotations and signatures of Neovim apis
      { 'folke/neodev.nvim', opts = {} },
    },
    keys = {
      { '<C-k>', cmp.mapping.select_prev_item(), desc = 'Next completion' },
      { '<C-j>', cmp.mapping.select_next_item(), desc = 'Last completion' },
      { '<C-Space>', cmp.mapping.complete(), desc = 'Accept completion' },
      { '<C-e>', cmp.mapping.close(), desc = 'Hide completions' },
      { '<CR>', cmp.mapping.confirm {
        behavior = cmp.ConfirmBehavior.Insert,
        select = true,
      }, desc = 'Accept completion' },
      {
        '<Tab>',
        cmp.mapping(function(fallback)
          if cmp.visible() then
            cmp.select_next_item()
          elseif require('luasnip').expand_or_jumpable() then
            vim.fn.feedkeys(vim.api.nvim_replace_termcodes('<Plug>luasnip-expand-or-jump', true, true, true), '')
          else
            fallback()
          end
        end, {
          'i',
          's',
        }),
        desc = 'Next completion',
      },
      {
        '<S-Tab>',
        cmp.mapping(function(fallback)
          if cmp.visible() then
            cmp.select_prev_item()
          elseif require('luasnip').expand_or_jumpable() then
            vim.fn.feedkeys(vim.api.nvim_replace_termcodes('<Plug>luasnip-expand-or-jump', true, true, true), '')
          else
            fallback()
          end
        end, {
          'i',
          's',
        }),
        desc = 'Last completion',
      },
    },
    config = function()
      require 'custom.plugins.configs.lsp'
    end,
  },
  -- See `:help gitsigns` to understand what the configuration keys do
  { -- Adds git related signs to the gutter, as well as utilities for managing changes
    'lewis6991/gitsigns.nvim',
    opts = {
      signs = {
        add = { text = '+' },
        change = { text = '~' },
        delete = { text = '_' },
        topdelete = { text = '‾' },
        changedelete = { text = '~' },
      },
    },
  },
  {
    'folke/trouble.nvim',
    cmd = 'Trouble',
    opts = { use_diagnostic_signs = true },
        -- stylua: ignore
        keys = {
            { '<leader>rb', "<cmd>Trouble diagnostics toggle filter.buf=0<cr>", desc = 'Document Diagnostics (Trouble)' },
            { '<leader>rr', '<cmd>Trouble diagnostics toggle<cr>',              desc = 'Workspace Diagnostics (Trouble)' },
            { '<leader>rq', "<cmd>Trouble qflist toggle<cr>",                   desc = 'Quickfix List (Trouble)' },
            { '<leader>rl', "<cmd>Trouble loclist toggle<cr>",                  desc = 'Location List (Trouble)' },
            { '<leader>rd', "<cmd>Trouble symbols<cr>",                         desc = 'LSP symbols (Trouble)' },
            { '<leader>rt', "<cmd>Trouble todo<cr>",                            desc = 'Todos (Trouble)' },
            {
                '[q',
                function()
                    if require('trouble').is_open() then
                        require('trouble').previous({ skip_groups = true, jump = true })
                    else
                        vim.cmd.cprev()
                    end
                end,
                desc = 'Previous trouble/quickfix item',
            },
            {
                ']q',
                function()
                    if require('trouble').is_open() then
                        require('trouble').next({ skip_groups = true, jump = true })
                    else
                        vim.cmd.cnext()
                    end
                end,
                desc = 'Next trouble/quickfix item',
            },
        },
  },
  { -- Autocompletion
    'hrsh7th/nvim-cmp',
    enabled = not vim.g.started_by_firenvim,
    event = 'InsertEnter',
    dependencies = {
      -- Snippet Engine & its associated nvim-cmp source
      {
        'L3MON4D3/LuaSnip',
        build = (function()
          -- Build Step is needed for regex support in snippets.
          -- This step is not supported in many windows environments.
          -- Remove the below condition to re-enable on windows.
          if vim.fn.has 'win32' == 1 or vim.fn.executable 'make' == 0 then
            return
          end
          return 'make install_jsregexp'
        end)(),
        dependencies = {
          -- `friendly-snippets` contains a variety of premade snippets.
          --    See the README about individual language/framework/plugin snippets:
          --    https://github.com/rafamadriz/friendly-snippets
          -- {
          --   'rafamadriz/friendly-snippets',
          --   config = function()
          --     require('luasnip.loaders.from_vscode').lazy_load()
          --   end,
          -- },
        },
      },
      'saadparwaiz1/cmp_luasnip',

      -- Adds other completion capabilities.
      --  nvim-cmp does not ship with all sources by default. They are split
      --  into multiple repos for maintenance purposes.
      'hrsh7th/cmp-nvim-lsp',
      'hrsh7th/cmp-path',
    },
    config = function()
      -- See `:help cmp`
      local cmp = require 'cmp'
      local luasnip = require 'luasnip'
      luasnip.config.setup {}

      cmp.setup {
        snippet = {
          expand = function(args)
            luasnip.lsp_expand(args.body)
          end,
        },
        completion = { completeopt = 'menu,menuone,noinsert' },

        -- For an understanding of why these mappings were
        -- chosen, you will need to read `:help ins-completion`
        --
        -- No, but seriously. Please read `:help ins-completion`, it is really good!
        mapping = cmp.mapping.preset.insert {
          -- Select the [n]ext item
          ['<C-n>'] = cmp.mapping.select_next_item(),
          -- Select the [p]revious item
          ['<C-p>'] = cmp.mapping.select_prev_item(),

          -- Scroll the documentation window [b]ack / [f]orward
          ['<C-b>'] = cmp.mapping.scroll_docs(-4),
          ['<C-f>'] = cmp.mapping.scroll_docs(4),

          -- Accept ([y]es) the completion.
          --  This will auto-import if your LSP supports it.
          --  This will expand snippets if the LSP sent a snippet.
          ['<C-y>'] = cmp.mapping.confirm { select = true },

          -- If you prefer more traditional completion keymaps,
          -- you can uncomment the following lines
          --['<CR>'] = cmp.mapping.confirm { select = true },
          --['<Tab>'] = cmp.mapping.select_next_item(),
          --['<S-Tab>'] = cmp.mapping.select_prev_item(),

          -- Manually trigger a completion from nvim-cmp.
          --  Generally you don't need this, because nvim-cmp will display
          --  completions whenever it has completion options available.
          ['<C-Space>'] = cmp.mapping.complete {},

          -- Think of <c-l> as moving to the right of your snippet expansion.
          --  So if you have a snippet that's like:
          --  function $name($args)
          --    $body
          --  end
          --
          -- <c-l> will move you to the right of each of the expansion locations.
          -- <c-h> is similar, except moving you backwards.
          ['<C-l>'] = cmp.mapping(function()
            if luasnip.expand_or_locally_jumpable() then
              luasnip.expand_or_jump()
            end
          end, { 'i', 's' }),
          ['<C-h>'] = cmp.mapping(function()
            if luasnip.locally_jumpable(-1) then
              luasnip.jump(-1)
            end
          end, { 'i', 's' }),

          -- For more advanced Luasnip keymaps (e.g. selecting choice nodes, expansion) see:
          --    https://github.com/L3MON4D3/LuaSnip?tab=readme-ov-file#keymaps
        },
        sources = {
          { name = 'nvim_lsp' },
          { name = 'luasnip' },
          { name = 'path' },
        },
      }
    end,
  },
  { -- Highlight, edit, and navigate code
    'nvim-treesitter/nvim-treesitter',
    build = ':TSUpdate',
    opts = {
      ensure_installed = { 'bash', 'c', 'diff', 'html', 'lua', 'luadoc', 'markdown', 'vim', 'vimdoc' },
      -- Autoinstall languages that are not installed
      auto_install = true,
      highlight = {
        enable = true,
        -- Some languages depend on vim's regex highlighting system (such as Ruby) for indent rules.
        --  If you are experiencing weird indenting issues, add the language to
        --  the list of additional_vim_regex_highlighting and disabled languages for indent.
        additional_vim_regex_highlighting = { 'ruby' },
      },
      indent = { enable = true, disable = { 'ruby' } },
    },
    config = function(_, opts)
      -- [[ Configure Treesitter ]] See `:help nvim-treesitter`

      -- Prefer git instead of curl in order to improve connectivity in some environments
      require('nvim-treesitter.install').prefer_git = true
      ---@diagnostic disable-next-line: missing-fields
      require('nvim-treesitter.configs').setup(opts)

      -- There are additional nvim-treesitter modules that you can use to interact
      -- with nvim-treesitter. You should go explore a few and see what interests you:
      --
      --    - Incremental selection: Included, see `:help nvim-treesitter-incremental-selection-mod`
      --    - Show your current context: https://github.com/nvim-treesitter/nvim-treesitter-context
      --    - Treesitter + textobjects: https://github.com/nvim-treesitter/nvim-treesitter-textobjects
    end,
  },
  {
    'kevinhwang91/nvim-bqf',
    ft = 'qf',
    cmd = 'BqfAutoToggle',
    event = 'QuickFixCmdPost',
    opts = {
      auto_resize_height = false,
      func_map = {
        tab = 'st',
        split = 'sv',
        vsplit = 'sg',

        stoggleup = 'K',
        stoggledown = 'J',
        stogglevm = '<Space>',

        ptoggleitem = 'p',
        ptoggleauto = 'P',
        ptogglemode = 'zp',

        pscrollup = '<C-b>',
        pscrolldown = '<C-f>',

        prevfile = 'gk',
        nextfile = 'gj',

        prevhist = '<S-Tab>',
        nexthist = '<Tab>',
      },
      preview = {
        auto_preview = true,
        should_preview_cb = function(bufnr)
          -- file size greater than 100kb can't be previewed automatically
          local filename = vim.api.nvim_buf_get_name(bufnr)
          local fsize = vim.fn.getfsize(filename)
          if fsize > 100 * 1024 then
            return false
          end
          return true
        end,
      },
    },
  },
  {
    'rmagatti/goto-preview',
    event = 'FileType',
    keys = {
      {
        'gpd',
        function()
          require('goto-preview').goto_preview_definition()
        end,
        desc = 'Go to definition preview',
      },
      {
        'gpD',
        function()
          require('goto-preview').goto_preview_declaration()
        end,
        desc = 'Go to declaration preview',
      },
      {
        'gpi',
        function()
          require('goto-preview').goto_preview_implementation()
        end,
        desc = 'Go to implementaion preview',
      },
      {
        'gpt',
        function()
          require('goto-preview').goto_preview_type_definition()
        end,
        desc = 'Go to type preview',
      },
      {
        'gpt',
        function()
          require('goto-preview').goto_preview_type_references()
        end,
        desc = 'Preview references',
      },
      {
        'gpc',
        function()
          require('goto-preview').close_all_win()
        end,
        desc = 'Close all preview windows',
      },
    },
    config = function()
      require('goto-preview').setup {}
    end,
    dependencies = 'nvim-telescope/telescope.nvim',
    opts = {
      width = 78,
      height = 15,
      default_mappings = false,
      opacity = 10,
    },
  },
  { 'kosayoda/nvim-lightbulb', event = { 'BufReadPre', 'BufNewFile' } },
  {
    'mfussenegger/nvim-dap',
    lazy = false,
    init = function()
      require('core.utils').load_mappings 'debug'
    end,
    config = function()
      local dap = require 'dap'
      local mason_registry = require 'mason-registry'
      local codelldb_root = mason_registry.get_package('codelldb'):get_install_path() .. '/extension/'
      local codelldb_path = codelldb_root .. 'adapter/codelldb'
      local liblldb_path = codelldb_root .. 'lldb/lib/liblldb.so'
      dap.defaults.fallback.external_terminal = {
        command = '/home/plex/.local/bin/kitty',
        args = {},
      }
      dap.adapters.gdb = {
        type = 'executable',
        command = 'gdb',
        args = { '-i', 'dap' },
      }
      dap.adapters.codelldb = {
        type = 'server',
        port = '30333',
        executable = {
          command = codelldb_path,
          args = { '--port', '30333' },
          detached = false,
        },
      }
      dap.configurations.cpp = {
        {
          name = 'Launch file',
          type = 'codelldb',
          request = 'launch',
          program = function()
            return vim.fn.input('Path to executable: ', vim.fn.getcwd() .. '/', 'file')
          end,
          args = function()
            return require('custom.utils').tokenize_args(vim.fn.input 'args: ')
          end,
          cwd = '${workspaceFolder}',
          -- FIXME: perhaps we can put the stdio somewhere more practical
          stopOnEntry = false,
        },
      }
      dap.configurations.c = dap.configurations.cpp
      dap.configurations.rust = dap.configurations.cpp
    end,
  },
  {
    'rcarriga/nvim-dap-ui',
    init = function()
      require('core.utils').load_mappings 'debug'
    end,
    dependencies = {
      'mfussenegger/nvim-dap',
      'nvim-neotest/nvim-nio',
    },
    config = function(_, opts)
      local dap = require 'dap'
      local dapui = require 'dapui'
      dapui.setup(opts)
      dap.listeners.after.event_initialized['dapui_config'] = function()
        dapui.open {}
      end
      dap.listeners.before.event_terminated['dapui_config'] = function()
        -- dapui.close {}
      end
      dap.listeners.before.event_exited['dapui_config'] = function()
        -- dapui.close {}
      end
    end,
  },
  {
    'folke/lazydev.nvim',
    ft = 'lua', -- only load on lua files
    opts = {
      library = {
        -- See the configuration section for more details
        -- Load luvit types when the `vim.uv` word is found
        { path = 'luvit-meta/library', words = { 'vim%.uv' } },
      },
    },
  },
  { 'Bilal2453/luvit-meta', lazy = true }, -- optional `vim.uv` typings
  {
    'mrcjkb/rustaceanvim',
    enabled = false,
    version = '^4', -- Recommended
    ft = { 'rust' },
    config = function()
      local dap = require 'dap'
      vim.g.rustaceanvim = {
        enable_clippy = true,
        -- Plugin configuration
        tools = {
          enable_clippy = true,
        },
        -- LSP configuration
        server = {
          on_attach = function(client, bufnr)
            -- you can also put keymaps in here
          end,
          settings = {
            -- rust-analyzer language server configuration
            ['rust-analyzer'] = {
              cargo = {
                features = 'all',
              },
            },
          },
        },
        -- DAP configuration
        dap = {
          -- FIXME: the rustaceanvim debug config does not map the stdout/stderr to the
          -- opened terminal, effectively rendering debugging with it useless. Luckily,
          -- we can use the regular nvim-dap and nvim-dap-ui.
          adapter = dap.adapters.codelldb,
        },
      }
    end,
  },
  {
    'theHamsta/nvim-dap-virtual-text',
    lazy = false, -- PERF: this can be done more elegant
    config = function()
      require('nvim-dap-virtual-text').setup()
    end,
  },
}