add devexp plugins and their mappings

neovim/init.lua

@@ -7,12 +7,30 @@ set shiftwidth=4
 set smartindent
 set exrc
 set incsearch
-set scrolloff=7
+set scrolloff=15
 set signcolumn=yes
 set colorcolumn=80
-set background=light
+set background=dark
 ]])
 vim.opt.termguicolors = true
+-- some plugins misbehave when we do swap files
+vim.opt.swapfile = false
+vim.opt.backup = false
+vim.opt.undodir = os.getenv("HOME") .. "/.vim/undodir"
+vim.opt.undofile = true
+vim.opt.completeopt = 'menuone,noselect'
+
+vim.g.mapleader = ' '
+
+-- basic keymaps
+vim.keymap.set({'n','v'}, '<Space>', '<Nop>', {silent=true}) -- since we're using space for leader
+
+-- diagnostics (errors/warnings to be shown)
+vim.keymap.set('n', '[d', vim.diagnostic.goto_prev)
+vim.keymap.set('n', ']d', vim.diagnostic.goto_next)
+vim.keymap.set('n', '<leader>e', vim.diagnostic.open_float) -- opens diag in box (floating)
+vim.keymap.set('n', '<leader>q', vim.diagnostic.setloclist)
+
 
 -- vim-plug
 vim.cmd([[
@@ -25,10 +43,105 @@ endif
 
 local Plug = vim.fn['plug#']
 vim.call('plug#begin', '~/.config/nvim/plugged')
+-- libs and dependencies
 Plug('nvim-lua/plenary.nvim')
-Plug('nvim-telescope/telescope.nvim', {tag = '0.1.0'})
+
+-- plugins 
+Plug('nvim-treesitter/nvim-treesitter') -- language parser engine
+Plug('nvim-treesitter/nvim-treesitter-textobjects') -- more text objects
+Plug('nvim-telescope/telescope.nvim', {tag = '0.1.0'}) -- fuzzy search thru files
+-- cmp: auto-complete/suggestions
+Plug('neovim/nvim-lspconfig') -- built-in LSP configurations
+Plug('hrsh7th/cmp-nvim-lsp')
+Plug('hrsh7th/cmp-buffer')
+Plug('hrsh7th/nvim-cmp')
+Plug('onsails/lspkind-nvim')
+-- DevExp
+Plug('numToStr/Comment.nvim')  -- "gc" to comment visual regions/lines
+Plug('lewis6991/gitsigns.nvim') -- add git info to sign columns
+Plug('tpope/vim-fugitive') -- git commands in nvim
+
+-- UI & colorscheme
 Plug('gruvbox-community/gruvbox')
+Plug('nvim-lualine/lualine.nvim') -- fancy status line
+Plug('lukas-reineke/indent-blankline.nvim') -- identation lines on blank lines
+
+-- other
+Plug('nvim-treesitter/nvim-treesitter', {run = ':TSUpdate'})
+
+---------
 vim.call('plug#end')
 
+-- color, highlighting, UI stuffs
 vim.cmd.colorscheme('gruvbox')
 
+-- plugin keymaps
+function remap(mode, key_cmd, binded_fn, opts)
+  opts = opts or {remap = true}
+  return vim.keymap.set(mode, key_cmd, binded_fn, opts)
+end
+-- Comment.nvim
+require('Comment').setup()
+-- lukas-reineke/indent-blankline.nvim
+require('indent_blankline').setup {
+  char = '┊',
+  show_trailing_blankline_indent = false,
+}
+-- telescope
+require('telescope').setup {
+  defaults = {
+    mappings = {
+      i = {
+        ['<C-u>'] = false,
+        ['<C-d>'] = false,
+      }
+    }
+  }
+}
+pcall(require('telescope').load_extension, 'fzf')
+remap('n', '<C-p>','<cmd>Telescope<cr>', {desc = 'Open Telescope general search'})
+remap('n', '<leader>ff',function()
+  require('telescope.builtin').find_files()
+end, {desc = '[F]ind [F]iles'})
+remap('n', '<leader>fg',function()
+  require('telescope.builtin').live_grep()
+end, {desc = '[F]ind by [G]rep'})
+remap('n', '<leader>fb',function()
+  require('telescope.builtin').buffers()
+end, {desc = '[F]ind existing [B]uffers'})
+remap('n', '<leader>fh',function()
+  require('telescope.builtin').help_tags()
+end, {desc = '[F]ind [H]elp'})
+remap('n', '<leader>fd',function()
+  require('telescope.builtin').live_grep()
+end, {desc = '[F]ind [D]iagnostics'})
+-- treesitter
+require('nvim-treesitter.configs').setup {
+  ensure_installed = {'lua', 'typescript', 'rust', 'go', 'python'},
+  highlight = {enable = true},
+  indent = {enable = true},
+  incremental_selection = {
+    enable = true,
+    keymap = {
+      init_selection = '<c-space>',
+      node_incremental = '<c-space>',
+      node_decremental = '<c-backspace>'
+    }
+  },
+  textobjects = {
+    select = {
+      enable = true,
+      lookahead = true,
+      keymaps = {
+        ['af'] = '@function.outer',
+        ['if'] = '@function.inner',
+        ['ac'] = '@class.outer',
+        ['ic'] = '@class.inner',
+      },
+    },
+  },
+
+}
+
+
+