Neovim 0.5 config

init.lua

-- Setup plugins (remember trailing semi-colon)
-- (Use :PaqInstall or :PaqUpdate)
require "paq-nvim" {
    -- Let Paq manage itself
    "savq/paq-nvim";

    -- LSP support
    "neovim/nvim-lspconfig";

    -- Auto complete
    "nvim-lua/completion-nvim";

    -- Syntax highlighting
    {"nvim-treesitter/nvim-treesitter", run=vim.fn["TSUpdate"]};

    -- Extensions for LSP (like variable types in Rust)
    "nvim-lua/lsp_extensions.nvim";

    -- Easy motion like
    "ggandor/lightspeed.nvim";

    -- Gruvbox color scheme with treesitter support
    "rktjmp/lush.nvim";
    "npxbr/gruvbox.nvim";

    -- Airline
    "hoob3rt/lualine.nvim";

    -- Allow closing a buffer without messing up the window layout
    "famiu/bufdelete.nvim";

    -- Fuzzy finder
    "nvim-lua/popup.nvim";
    "nvim-lua/plenary.nvim";
    "nvim-telescope/telescope.nvim";

    "editorconfig/editorconfig-vim";
}

vim.o.mouse = "a"

-- Color theme support
vim.o.termguicolors = true

-- Display line numbers and gutter
vim.o.signcolumn = "yes"
vim.o.number = true

-- Get rid of the modern slim cursor for insert mode
vim.o.guicursor = ""

-- Make backspace work like a normal editor
vim.o.backspace = "indent,eol,start"

-- Allow opening another buffer while there are unsaved changes
vim.o.hidden = true

-- Make saving work with change detection
vim.o.backupcopy = "yes"

-- Use soft tabs
vim.o.tabstop = 4
vim.o.expandtab = true
vim.o.shiftwidth = 4
vim.o.softtabstop = 4

-- Live preview of regex substitution
vim.o.inccommand = "nosplit"

-- Enable treesitter for all major languages
local ts = require 'nvim-treesitter.configs'
ts.setup {ensure_installed = 'maintained', highlight = {enable = true}}

vim.o.background = "dark" -- or "light" for light mode
vim.cmd([[colorscheme gruvbox]])
vim.cmd([[highlight! link String GruvboxYellow]])

-- Airline
require "lualine".setup {
    options = {theme = 'gruvbox'};
}
vim.opt.showmode = false

-- Make language dependent colorcolumn
vim.o.colorcolumn = "80,120"
vim.cmd([[autocmd FileType python set colorcolumn=80,88]])
vim.cmd([[autocmd FileType rust set colorcolumn=100]])


local function map(mode, lhs, rhs, opts)
    local options = {noremap = true, silent = true}
    if opts then options = vim.tbl_extend('force', options, opts) end
    vim.api.nvim_set_keymap(mode, lhs, rhs, options)
end

vim.g.mapleader = " "

-- Alt+Left/Right/Up/Down navigation for windows
map('n', '<A-Left>', ':wincmd h<CR>')
map('n', '<A-Right>', ':wincmd l<CR>')
map('n', '<A-Up>', ':wincmd k<CR>')
map('n', '<A-Down>', ':wincmd j<CR>')

-- Clear search highlighting
map('n', '<C-c>', ':let@/=""<CR>')

-- Make search center selection vertically
map('n', 'N', 'Nzz')
map('n', 'n', 'nzz')

-- Close current buffer
map('n', '<leader>q', ':Bwipeout<CR>')

-- Telescope bindings
map('n', '<leader>s', '<cmd>lua require "telescope.builtin".buffers()<CR>')
map('n', '<leader>d', '<cmd>lua require "telescope.builtin".live_grep()<CR>')
map('n', '<leader>f', '<cmd>lua require "telescope.builtin".file_browser()<CR>')
map('n', '<leader>g', '<cmd>lua require "telescope.builtin".git_files()<CR>')

-- Language server bindings
map('n', 'gd', '<cmd>lua require "telescope.builtin".lsp_definitions()<CR>')
map('n', 'gi', '<cmd>lua require "telescope.builtin".lsp_implementations()<CR>')
map('n', 'gr', '<cmd>lua require "telescope.builtin".lsp_references()<CR>')
map('n', '<leader><space>', '<cmd>lua vim.lsp.buf.hover()<CR>')

-- Language server refactoring
map('n', '<leader>rn', '<cmd>lua vim.lsp.buf.rename()<CR>')
map('n', '<leader>rn', '<cmd>lua vim.lsp.buf.rename()<CR>')
map('n', '<leader>ac', '<cmd>lua vim.lsp.buf.code_action()<CR>')