vimrc

" Comments in Vimscript start with a `"`.

" If you open this file in Vim, it'll be syntax highlighted for you.

" Vim is based on Vi. Setting `nocompatible` switches from the default
" Vi-compatibility mode and enables useful Vim functionality. This
" configuration option turns out not to be necessary for the file named
" '~/.vimrc', because Vim automatically enters nocompatible mode if that file
" is present. But we're including it here just in case this config file is
" loaded some other way (e.g. saved as `foo`, and then Vim started with
" `vim -u foo`).
set nocompatible
filetype off

" As I'm using lightline, the --INSERT-- in no longer necessary
set noshowmode

" Disable swap files
set noswapfile

" set the runtime path to include Vundle and initialize
set rtp+=~/.vim/bundle/Vundle.vim
call vundle#begin()
" alternatively, pass a path where Vundle should install plugins
"call vundle#begin('~/some/path/here')

" let Vundle manage Vundle, required
Plugin 'VundleVim/Vundle.vim'

" Turn on syntax highlighting.
syntax on

" Disable the default Vim startup message.
set shortmess+=I

" Show line numbers.
set number


" Tab completation for files/buffers
set wildmode=longest,list
set wildmenu

" This enables relative line numbering mode. With both number and
" relativenumber enabled, the current line shows the true line number, while
" all other lines (above and below) are numbered relative to the current line.
" This is useful because you can tell, at a glance, what count is needed to
" jump up or down to a particular line, by {count}k to go up or {count}j to go
" down.
set relativenumber

" Always show the status line at the bottom, even if you only have one window open.
set laststatus=2

" The backspace key has slightly unintuitive behavior by default. For example,
" by default, you can't backspace before the insertion point set with 'i'.
" This configuration makes backspace behave more reasonably, in that you can
" backspace over anything.
set backspace=indent,eol,start

" By default, Vim doesn't let you hide a buffer (i.e. have a buffer that isn't
" shown in any window) that has unsaved changes. This is to prevent you from "
" forgetting about unsaved changes and then quitting e.g. via `:qa!`. We find
" hidden buffers helpful enough to disable this protection. See `:help hidden`
" for more information on this.
set hidden

" This setting makes search case-insensitive when all characters in the string
" being searched are lowercase. However, the search becomes case-sensitive if
" it contains any capital letters. This makes searching more convenient.
set ignorecase
set smartcase

" Enable searching as you type, rather than waiting till you press enter.
set incsearch
highlight Search cterm=underline


" Unbind some useless/annoying default key bindings.
nmap Q <Nop> " 'Q' in normal mode enters Ex mode. You almost never want this.

" Disable audible bell because it's annoying.
set noerrorbells visualbell t_vb=

" Enable mouse support. You should avoid relying on this too much, but it can
" sometimes be convenient.
set mouse+=a

" Try to prevent bad habits like using the arrow keys for movement. This is
" not the only possible bad habit. For example, holding down the h/j/k/l keys
" for movement, rather than using more efficient movement commands, is also a
" bad habit. The former is enforceable through a .vimrc, while we don't know
" how to prevent the latter.
" Do this in normal mode...
nnoremap <Left>  :echoe "Use h"<CR>
nnoremap <Right> :echoe "Use l"<CR>
nnoremap <Up>    :echoe "Use k"<CR>
nnoremap <Down>  :echoe "Use j"<CR>
" ...and in insert mode
inoremap <Left>  <ESC>:echoe "Use h"<CR>
inoremap <Right> <ESC>:echoe "Use l"<CR>
inoremap <Up>    <ESC>:echoe "Use k"<CR>
inoremap <Down>  <ESC>:echoe "Use j"<CR>


" =============================================================================
" " # Keyboard shortcuts
" "
" =============================================================================
" " ; as :
" nnoremap ; :
"
" " Ctrl+j and Ctrl+k as Esc
" " Ctrl-j is a little awkward unfortunately:
" " https://github.com/neovim/neovim/issues/5916
" " So we also map Ctrl+k
nnoremap <C-j> <Esc>
inoremap <C-j> <Esc>
vnoremap <C-j> <Esc>
snoremap <C-j> <Esc>
xnoremap <C-j> <Esc>
cnoremap <C-j> <C-c>
onoremap <C-j> <Esc>
lnoremap <C-j> <Esc>
tnoremap <C-j> <Esc>

nnoremap <C-k> <Esc>
inoremap <C-k> <Esc>
vnoremap <C-k> <Esc>
snoremap <C-k> <Esc>
xnoremap <C-k> <Esc>
cnoremap <C-k> <C-c>
onoremap <C-k> <Esc>
lnoremap <C-k> <Esc>
tnoremap <C-k> <Esc>

" " Also to 'jj' 
inoremap jj <Esc> 

" " Ctrl+h to stop searching
vnoremap <C-h> :nohlsearch<cr>
nnoremap <C-h> :nohlsearch<cr>

" " Suspend with Ctrl+f
inoremap <C-f> :sus<cr>
vnoremap <C-f> :sus<cr>
nnoremap <C-f> :sus<cr>

" " Jump to start and end of line using the home row keys
map H ^
map L $

"easier window navigation
nmap <C-h> <C-w>h
nmap <C-j> <C-w>j
nmap <C-k> <C-w>k
nmap <C-l> <C-w>l


" Temporal
filetype plugin indent on



" Color scheme "
let g:airline_theme='gruvbox'
set bg=dark

"------------------------------------------------
"Plugin configuration
"------------------------------------------------

"Gruvbox
Plugin 'morhetz/gruvbox'

"Nerdtree
Plugin 'scrooloose/nerdtree'
nnoremap <Leader>n :NERDTreeToggle<CR>
nnoremap <Leader>f :NERDTreeFind<CR>

"Tab completions
Plugin 'ervandew/supertab'

"Temporal
"Remap Ctrl+n to open nerdtree
map <C-n> :NERDTreeToggle<CR>



"------------------------------------------------

" Vundle conf
" All of your Plugins must be added before the following line
call vundle#end()            " required
filetype plugin indent on    " required
" To ignore plugin indent changes, instead use:
"filetype plugin on
"
" Brief help
" :PluginList       - lists configured plugins
" :PluginInstall    - installs plugins; append `!` to update or just :PluginUpdate
" :PluginSearch foo - searches for foo; append `!` to refresh local cache
" :PluginClean      - confirms removal of unused plugins; append `!` to auto-approve removal
"
" see :h vundle for more details or wiki for FAQ
" Put your non-Plugin stuff after this line
colorscheme gruvbox

" highlight current line, but only in active window
augroup CursorLineOnlyInActiveWindow
    autocmd!
    autocmd VimEnter,WinEnter,BufWinEnter * setlocal cursorline
    autocmd WinLeave * setlocal nocursorline
augroup END