init.lua

local lazypath = vim.fn.stdpath("data") .. "/lazy/lazy.nvim"
if not vim.loop.fs_stat(lazypath) then
  vim.fn.system({
    "git",
    "clone",
    "--filter=blob:none",
    "https://github.com/folke/lazy.nvim.git",
    "--branch=stable", -- latest stable release
    lazypath,
  })
end
vim.opt.rtp:prepend(lazypath)
vim.g.mapleader = ' '

require("lazy").setup({
	'rmehri01/onenord.nvim',
	"neovim/nvim-lspconfig",
	"hrsh7th/nvim-cmp",
	"hrsh7th/cmp-nvim-lsp",
	"hrsh7th/cmp-vsnip",
	"hrsh7th/cmp-path",
	"hrsh7th/cmp-buffer",
	"hrsh7th/vim-vsnip",
	"simrat39/rust-tools.nvim",
	"itchyny/lightline.vim",
    "nvim-telescope/telescope.nvim",
    'nvim-lua/plenary.nvim',
    'nvim-treesitter/nvim-treesitter',
})

require('onenord').setup()

-- LSP CONFIGURATION

-- Set completeopt to have a better completion experience
-- :help completeopt
-- menuone: popup even when there's only one match
-- noinsert: Do not insert text until a selection is made
-- noselect: Do not auto-select, nvim-cmp plugin will handle this for us.
vim.o.completeopt = "menuone,noinsert,noselect"

-- Avoid showing extra messages when using completion
vim.opt.shortmess = vim.opt.shortmess + "c"

local function on_attach(client, buffer)
	local keymap_opts = { buffer = buffer }
	-- Code navigation and shortcuts
	vim.keymap.set("n", "<c-]>", vim.lsp.buf.definition, keymap_opts)
	vim.keymap.set("n", "K", vim.lsp.buf.hover, keymap_opts)
	vim.keymap.set("n", "gD", vim.lsp.buf.implementation, keymap_opts)
	vim.keymap.set("n", "<c-k>", vim.lsp.buf.signature_help, keymap_opts)
	vim.keymap.set("n", "1gD", vim.lsp.buf.type_definition, keymap_opts)
	vim.keymap.set("n", "gr", vim.lsp.buf.references, keymap_opts)
	vim.keymap.set("n", "g0", vim.lsp.buf.document_symbol, keymap_opts)
	vim.keymap.set("n", "gW", vim.lsp.buf.workspace_symbol, keymap_opts)
	vim.keymap.set("n", "gd", vim.lsp.buf.definition, keymap_opts)
end

-- Configure LSP through rust-tools.nvim plugin.
-- rust-tools will configure and enable certain LSP features for us.
-- See https://github.com/simrat39/rust-tools.nvim#configuration
local opts = {
  tools = {
    runnables = {
      use_telescope = true,
    },
    inlay_hints = {
      auto = true,
      show_parameter_hints = false,
      parameter_hints_prefix = "",
      other_hints_prefix = "",
    },
  },

  -- all the opts to send to nvim-lspconfig
  -- these override the defaults set by rust-tools.nvim
  -- see https://github.com/neovim/nvim-lspconfig/blob/master/CONFIG.md#rust_analyzer
  server = {
    -- on_attach is a callback called when the language server attachs to the buffer
    on_attach = on_attach,
    settings = {
      -- to enable rust-analyzer settings visit:
      -- https://github.com/rust-analyzer/rust-analyzer/blob/master/docs/user/generated_config.adoc
      ["rust-analyzer"] = {
        -- enable clippy on save
        checkOnSave = {
          command = "clippy",
        },
      },
    },
  },
}

require("rust-tools").setup(opts)

-- Setup Completion
-- See https://github.com/hrsh7th/nvim-cmp#basic-configuration
local cmp = require("cmp")
cmp.setup({
  preselect = cmp.PreselectMode.None,
  snippet = {
    expand = function(args)
      vim.fn["vsnip#anonymous"](args.body)
    end,
  },
  mapping = {
    ["<C-p>"] = cmp.mapping.select_prev_item(),
    ["<C-n>"] = cmp.mapping.select_next_item(),
    -- Add tab support
    ["<S-Tab>"] = cmp.mapping.select_prev_item(),
    ["<Tab>"] = cmp.mapping.select_next_item(),
    ["<C-d>"] = cmp.mapping.scroll_docs(-4),
    ["<C-f>"] = cmp.mapping.scroll_docs(4),
    ["<C-Space>"] = cmp.mapping.complete(),
    ["<C-e>"] = cmp.mapping.close(),
    ["<CR>"] = cmp.mapping.confirm({
      behavior = cmp.ConfirmBehavior.Insert,
      select = true,
    }),
  },

  -- Installed sources
  sources = {
    { name = "nvim_lsp" },
    { name = "vsnip" },
    { name = "path" },
    { name = "buffer" },
  },
})

vim.opt.nu = true
vim.opt.relativenumber = true

vim.opt.tabstop = 4
vim.opt.softtabstop = 4
vim.opt.shiftwidth = 4
vim.opt.expandtab = true

vim.opt.smartindent = true

vim.opt.wrap = false

vim.opt.swapfile = false
vim.opt.backup = false
vim.opt.undodir = os.getenv("HOME") .. "/.vim/undodir"
vim.opt.undofile = true

vim.opt.hlsearch = false
vim.opt.incsearch = true

vim.opt.termguicolors = true

vim.opt.scrolloff = 8
vim.opt.signcolumn = "yes"
vim.opt.isfname:append("@-@")

vim.opt.updatetime = 50

vim.opt.colorcolumn = "80"


vim.opt_global.nu = true
vim.opt_global.relativenumber = true

vim.opt_global.tabstop = 4
vim.opt_global.softtabstop = 4
vim.opt_global.shiftwidth = 4
vim.opt_global.expandtab = true

vim.opt_global.smartindent = true

vim.opt_global.wrap = false

vim.opt_global.swapfile = false
vim.opt_global.backup = false
vim.opt_global.undodir = os.getenv("HOME") .. "/.vim/undodir"
vim.opt_global.undofile = true

vim.opt_global.hlsearch = false
vim.opt_global.incsearch = true

vim.opt_global.termguicolors = true

vim.opt_global.scrolloff = 8
vim.opt_global.signcolumn = "yes"
vim.opt_global.isfname:append("@-@")

vim.opt_global.updatetime = 50

vim.opt_global.colorcolumn = "80"

local builtin = require('telescope.builtin')
vim.keymap.set('n', '<leader>ff', builtin.find_files, {})
vim.keymap.set('n', '<leader>fg', builtin.live_grep, {})
vim.keymap.set('n', '<leader>fb', builtin.buffers, {})
vim.keymap.set('n', '<leader>fh', builtin.help_tags, {})

require'lspconfig'.texlab.setup{}
require'lspconfig'.gopls.setup{}
require'lspconfig'.pylsp.setup{
  settings = {
    pylsp = {
      plugins = {
        pycodestyle = {
          ignore = {'W391'},
          maxLineLength = 100
        }
      }
    }
  }
}