Nvim Lua init script

init.lua

local Plug = vim.fn['plug#']

vim.call('plug#begin')

-- File explorer
Plug('preservim/nerdtree')
-- Commenting
Plug('tpope/vim-commentary')
-- Visualization
Plug('vim-airline/vim-airline')
Plug('vim-airline/vim-airline-themes')
-- Git
Plug('apzelos/blamer.nvim')
-- File/Buffer finder
Plug('nvim-lua/plenary.nvim')
Plug('nvim-telescope/telescope.nvim')
-- LSP
Plug('williamboman/mason.nvim')
Plug('williamboman/mason-lspconfig.nvim')
Plug('neovim/nvim-lspconfig')
-- Syntax
-- Requires tree-sitter cli
Plug('nvim-treesitter/nvim-treesitter')

vim.call('plug#end')

local opt = vim.opt

opt.tabstop = 2
opt.softtabstop = 2
opt.shiftwidth = 2
opt.expandtab = true
opt.smarttab = true
opt.incsearch = true
opt.ignorecase = true
opt.smartcase = true
opt.hlsearch = true
opt.wildmode = 'longest,list,full'
opt.list = true
opt.breakindent = true
opt.number = true
opt.title = true
opt.scrolloff = 5

vim.cmd('filetype plugin indent on')

-- Plugin Configurations
-- NERDTree
vim.g.NERDTreeShowHidden = 1
-- Blamer
vim.g.blamer_enabled = 0
vim.g.blamer_relative_time = 1
vim.g.blamer_show_in_visual_modes = 0
vim.g.blamer_delay = 200
-- highlight Blamer guifg=lightgray

-- Airline
-- Powerline fonts needs https://github.com/powerline/fonts
vim.g.airline_powerline_fonts = 0
vim.g.airline_theme = 'bubblegum'
vim.g['airline#extensions#tabline#enabled'] = 1
vim.g['airline#extensions#tabline#formatter'] = 'unique_tail'

-- LSP
local language_servers = {
  'pylsp',
  'solargraph',
  'elixirls'
}

require("mason").setup()
require("mason-lspconfig").setup {
  ensure_installed = language_servers
}

local lspconfig = require("lspconfig")

for _, server_name in pairs(language_servers) do
  lspconfig[server_name].setup {}
end

-- Treesitter
require('nvim-treesitter.configs').setup {
  ensure_installed = { 'elixir', },
  sync_install = true,
  auto_install = true,
  highlight = { enable = true }
}

-- Mappings
vim.keymap.set({'n', 'v'}, '<C-n>', ':NERDTreeToggle<CR>')
vim.keymap.set({'n', 'v'}, '<C-b>', ':NERDTreeFind<CR>')
vim.keymap.set({'n', 'v'}, '<A-b>', '::Telescope buffers<CR>')
-- fd-find recommended
vim.keymap.set({'n', 'v'}, '<C-f>', '::Telescope find_files<CR>')
-- requires ripgrep
vim.keymap.set({'n', 'v'}, '<C-s>', ':Telescope live_grep<CR>')