Neovim LSP Enhanced - init.lua

init.lua

local on_attach = function(client, bufnr)

    -- require('completion').on_attach()

    local function buf_set_keymap(...) vim.api.nvim_buf_set_keymap(bufnr, ...) end
    local function buf_set_option(...) vim.api.nvim_buf_set_option(bufnr, ...) end

    buf_set_option('omnifunc', 'v:lua.vim.lsp.omnifunc')

    -- Mappings.
    local opts = { noremap=true, silent=true }
    buf_set_keymap('n', 'gD', '<Cmd>lua vim.lsp.buf.declaration()<CR>', opts)
    buf_set_keymap('n', 'gd', '<Cmd>lua vim.lsp.buf.definition()<CR>', opts)
    buf_set_keymap('n', 'K', '<Cmd>lua vim.lsp.buf.hover()<CR>', opts)
    buf_set_keymap('n', 'gi', '<cmd>lua vim.lsp.buf.implementation()<CR>', opts)
    buf_set_keymap('n', '<C-k>', '<cmd>lua vim.lsp.buf.signature_help()<CR>', opts)
    buf_set_keymap('n', '[d', '<cmd>lua vim.lsp.diagnostic.goto_prev()<CR>', opts)
    buf_set_keymap('n', ']d', '<cmd>lua vim.lsp.diagnostic.goto_next()<CR>', opts)
    buf_set_keymap('n', '<leader>law', '<cmd>lua vim.lsp.buf.add_workspace_folder()<CR>', opts)
    buf_set_keymap('n', '<leader>lrw', '<cmd>lua vim.lsp.buf.remove_workspace_folder()<CR>', opts)
    buf_set_keymap('n', '<leader>llw', '<cmd>lua print(vim.inspect(vim.lsp.buf.list_workspace_folders()))<CR>', opts)
    buf_set_keymap('n', '<leader>lt', '<cmd>lua vim.lsp.buf.type_definition()<CR>', opts)
    buf_set_keymap('n', '<leader>lrn', '<cmd>lua vim.lsp.buf.rename()<CR>', opts)
    buf_set_keymap('n', '<leader>lrf', '<cmd>lua vim.lsp.buf.references()<CR>', opts)
    buf_set_keymap('n', '<leader>ld', '<cmd>lua vim.lsp.diagnostic.show_line_diagnostics()<CR>', opts)
    buf_set_keymap('n', '<leader>ll', '<cmd>lua vim.lsp.diagnostic.set_loclist()<CR>', opts)
    buf_set_keymap('n', '<leader>lca', '<cmd>lua vim.lsp.buf.code_action()<CR>', opts)

    -- Set some keybinds conditional on server capabilities
    if client.resolved_capabilities.document_formatting then
        buf_set_keymap("n", "<leader>lf", "<cmd>lua vim.lsp.buf.formatting()<CR>", opts)
    elseif client.resolved_capabilities.document_range_formatting then
        buf_set_keymap("n", "<leader>lf", "<cmd>lua vim.lsp.buf.range_formatting()<CR>", opts)
    end

    -- Set autocommands conditional on server_capabilities
    if client.resolved_capabilities.document_highlight then
        vim.api.nvim_exec([[
        hi LspReferenceRead cterm=bold ctermbg=red guibg=LightYellow
        hi LspReferenceText cterm=bold ctermbg=red guibg=LightYellow
        hi LspReferenceWrite cterm=bold ctermbg=red guibg=LightYellow
        augroup lsp_document_highlight
        autocmd! * <buffer>
        autocmd CursorHold <buffer> lua vim.lsp.buf.document_highlight()
        autocmd CursorMoved <buffer> lua vim.lsp.buf.clear_references()
        augroup END
        ]], false)
    end
end


local nvim_lsp = require('lspconfig')
local capabilities = vim.lsp.protocol.make_client_capabilities()

-- require'snippets'.use_suggested_mappings(true) -- for snippets.vim

-- -- Code actions
-- capabilities.textDocument.codeAction = {
--   dynamicRegistration = false;
--       codeActionLiteralSupport = {
--           codeActionKind = {
--               valueSet = {
--                  "",
--                  "quickfix",
--                  "refactor",
--                  "refactor.extract",
--                  "refactor.inline",
--                  "refactor.rewrite",
--                  "source",
--                  "source.organizeImports",
--               };
--           };
--       };
-- }

capabilities.textDocument.completion.completionItem.snippetSupport = true;

-- LSPs
local servers = { "pyright", "rust_analyzer", "gopls", "tsserver" }
for _, lsp in ipairs(servers) do
    nvim_lsp[lsp].setup { 
        capabilities = capabilities;
        on_attach = on_attach;
        -- init_options = {
        --     onlyAnalyzeProjectsWithOpenFiles = true,
        --     suggestFromUnimportedLibraries = false,
        --     closingLabels = true,
        -- };
    }
end

-- Lua LSP. NOTE: This replaces the calls where you would have before done `require('nvim_lsp').sumneko_lua.setup()`
require('nlua.lsp.nvim').setup(require('lspconfig'), {
    capabilities = capabilities;
    on_attach = on_attach;
    init_options = {
        onlyAnalyzeProjectsWithOpenFiles = true,
        suggestFromUnimportedLibraries = false,
        closingLabels = true,
    };
})