neovim_config/lua/barink/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)
require("lazy").setup({
    {
        "folke/tokyonight.nvim",
        lazy = false,
        priority = 1000,
        opts = {},
        config = function()
            require("tokyonight").setup({
                style = "night",
                light_style = "day",
                transparent = true,
                terminal_colors = true,
                dim_inactive = false,
                lualine_bold = false,
            })

            vim.cmd [[colorscheme tokyonight]]
        end
    },
    {
        "nvim-telescope/telescope.nvim",
        dependencies = { 'nvim-lua/plenary.nvim' }
    },
    {
        "nvim-treesitter/nvim-treesitter",
        build = ":TSUpdate",
        config = function()
            local configs = require("nvim-treesitter.configs")

            configs.setup({
                ensure_installed = { "c", "lua", "vim", "vimdoc", "bash" },
                sync_install = false,
                highlight = { enable = true },
                indent = { enable = true },
            })
        end
    },
    { "mbbill/undotree" },
    {
        'neovim/nvim-lspconfig',
        dependencies = {
            "williamboman/mason-lspconfig",
            "williamboman/mason.nvim",
            "hrsh7th/cmp-nvim-lsp",
            "hrsh7th/cmp-buffer",
            "hrsh7th/cmp-path",
            "hrsh7th/cmp-cmdline",
            "hrsh7th/nvim-cmp",
            'L3MON4D3/LuaSnip',
        },
        config = function()
            require("mason").setup()
            require("mason-lspconfig").setup({
                ensure_installed = { "lua_ls", "bashls", "rust_analyzer" }
            })
           local cmp = require('cmp')
            cmp.setup({
                snippet = {
                    expand = function(args)
                        require('luasnip').lsp_expand(args.body)
                    end,
                },
                mapping = cmp.mapping.preset.insert({
                    ['<C-b>'] = cmp.mapping.scroll_docs(-4),
                    ['<C-f>'] = cmp.mapping.scroll_docs(4),
                    ['<C-Space>'] = cmp.mapping.complete(),
                    ['<C-e>'] = cmp.mapping.abort(),
                    ['<CR>'] = cmp.mapping.confirm({ select = true }), -- Accept currently selected item. Set `select` to `false` to only confirm explicitly selected items.
                }),
                sources = cmp.config.sources({
                    { name = 'nvim_lsp' },
                    { name = 'luasnip' },
                }, {
                    { name = 'buffer' },
                })
            })

            -- Set configuration for specific filetype.
            cmp.setup.filetype('gitcommit', {
                sources = cmp.config.sources({
                    { name = 'git' }, -- You can specify the `git` source if [you were installed it](https://github.com/petertriho/cmp-git).
                }, {
                    { name = 'buffer' },
                })
            })

            -- Use buffer source for `/` and `?` (if you enabled `native_menu`, this won't work anymore).
            cmp.setup.cmdline({ '/', '?' }, {
                mapping = cmp.mapping.preset.cmdline(),
                sources = {
                    { name = 'buffer' }
                }
            })

            -- Use cmdline & path source for ':' (if you enabled `native_menu`, this won't work anymore).
            cmp.setup.cmdline(':', {
                mapping = cmp.mapping.preset.cmdline(),
                sources = cmp.config.sources({
                    { name = 'path' }
                }, {
                    { name = 'cmdline' }
                }),
                matching = { disallow_symbol_nonprefix_matching = false }
            })

            -- Set up lspconfig.
            local capabilities = require('cmp_nvim_lsp').default_capabilities()

            require('lspconfig')['asm_lsp'].setup({
                capabilities = capabilities
            })

            local lsp = require("lspconfig")
            lsp.lua_ls.setup({
                capabilities = require('cmp_nvim_lsp').default_capabilities(),
                settings = {
                    Lua = {
                        diagnostics = {
                            globals = { 'vim' }
                        }
                    }
                }
            })
        end
    },
    { 'tpope/vim-fugitive' },
    {
        "j-hui/fidget.nvim",
        config = function()
            require('fidget').setup({})
        end
    }

}, {})

-- Set basic vim options
vim.opt.guicursor = ""

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

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

vim.opt.smartindent = true

vim.opt.wrap = false

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

vim.opt.termguicolors = true

vim.opt.scrolloff = 8

-- Keymaps
vim.g.mapleader = " "

local builtin = require('telescope.builtin')

vim.keymap.set('n', '<leader>ff', builtin.find_files, {})
vim.keymap.set('n', '<leader>fs', builtin.git_files, {})

vim.keymap.set('n', '<leader><F8>', vim.cmd.UndotreeToggle)

vim.keymap.set('n', '<leader>p', [["_dP]])
vim.keymap.set('n', '<leader>f', vim.lsp.buf.format)
vim.keymap.set('n', '<leader>m', ":Mason<CR>")
local osname = vim.loop.os_uname().sysname
if osname == "Windows_NT" then
    print("Windows Detected!!")
    vim.keymap.set('n', '<leader>x', function() print("sorry this is windows!") end)
elseif osname == "Linux" then
    -- Linux only!!
    vim.keymap.set('n', '<leader>x', "<cmd>!chmod +x %<CR>", { silent = true })
end