dotfiles/.config/nvim/lua/lsp.lua

require('plugins')
require('keymaps')

packer.use {
    'https://github.com/neovim/nvim-lspconfig',
    requires = 'https://github.com/L3MON4D3/LuaSnip',
    config = function()
        map('n', '<space>e', vim.diagnostic.open_float)
        map('n', '<f5>', vim.diagnostic.goto_prev)
        map('n', '<f6>', vim.diagnostic.goto_next)
        map('n', '<space>q', vim.diagnostic.setloclist)

        -- Only map the following keys after the language server attaches to the
        -- current buffer
        local on_attach = function(client, bufnr)
            -- Enable completion triggered by <c-x><c-o>
            vim.api.nvim_buf_set_option(bufnr, 'omnifunc', 'v:lua.vim.lsp.omnifunc')

            local function maplsp(mode, shortcut, command)
                vim.keymap.set(mode, shortcut, command,
                               { noremap = true, silent = true, buffer=bufnr })
            end

            maplsp('n', 'gD', vim.lsp.buf.declaration)
            maplsp('n', 'gd', vim.lsp.buf.definition)
            maplsp('n', 'K', vim.lsp.buf.hover)
            maplsp('n', 'gi', vim.lsp.buf.implementation)
            maplsp('n', '<C-k>', vim.lsp.buf.signature_help)
            maplsp('n', '<space>wa', vim.lsp.buf.add_workspace_folder)
            maplsp('n', '<space>wr', vim.lsp.buf.remove_workspace_folder)
            maplsp('n', '<space>wl', function()
              print(vim.inspect(vim.lsp.buf.list_workspace_folders()))
            end)
            maplsp('n', '<space>D', vim.lsp.buf.type_definition)
            maplsp('n', '<space>rn', vim.lsp.buf.rename)
            maplsp('n', '<space>ca', vim.lsp.buf.code_action)
            maplsp('n', 'gr', vim.lsp.buf.references)
            maplsp('n', '<space>f', vim.lsp.buf.formatting)
        end

        -- setup servers
        require'lspconfig'.clangd.setup{
            cmd = {
                'clangd',
                '--compile-commands-dir=build',
                '--clang-tidy',                     -- needs >=clangd-9
                '--ranking-model=decision_forest'   -- needs >=clangd-12
            },
            on_attach = on_attach
        }
    end
}