My .vimrc file

.vimrc

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" => General
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" Set 'nocompatible' to ward off unexpected things that your distro might
" have made, as well as sanely reset options when re-sourcing .vimrc
set nocompatible

" Set to auto read when a file is changed from the outside
set autoread

" Attempt to determine the type of a file based on its name and possibly its
" contents. Use this to allow intelligent auto-indenting for each filetype,
" and for plugins that are filetype specific.
filetype indent plugin on

" Enable syntax highlighting
syntax on

" With a map leader it's possible to do extra key combinations
" like <leader>w saves the current file
let mapleader = "`"

" Autosave when leaving insert mode
autocmd InsertLeave * write


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" => VIM user interface
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" Highlight searches (use <C-L> to temporarily turn off highlighting; see the
" mapping of <C-L> below)
" incsearch ensures results are highlighted as charachters are entered
set incsearch
set hlsearch

" Use case insensitive search, except when using capital letters
set ignorecase
set smartcase

" Allow backspacing over autoindent, line breaks and start of insert action
set backspace=indent,eol,start

" When opening a new line and no filetype-specific indenting is enabled, keep
" the same indent as the line you're currently on. Useful for READMEs, etc.
set autoindent

" Indent line breaks like they should be.
set breakindent

" Stop certain movements from always going to the first character of a line.
" While this behaviour deviates from that of Vi, it does what most users
" coming from other editors would expect.
set nostartofline

" Display the cursor position on the last line of the screen or in the status
" line of a window
set ruler

" Instead of failing a command because of unsaved changes, instead raise a
" dialogue asking if you wish to save changed files.
set confirm

" Display line numbers on the left
set number relativenumber

" Always keep at least five lines above and below the cursor
set scrolloff=5

" Show current command in the bottom
set showcmd


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" => Mappings
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" Fast saving
nmap <leader>w :w!<cr>

" Fast quitting
nmap <leader>q :q<cr>

" Fast commenting
nmap <leader>c gcc

" Map Y to act like D and C, i.e. to yank until EOL, rather than act as yy,
" which is the default
map Y y$

" Map B to beginning of line, and E to end of line
map B ^
map E $

" move vertically by visual line (don't skip wrapped lines)
nmap j gj
nmap k gk

map <Down> gj
map <Up> gk

" Map <C-L> (redraw screen) to also turn off search highlighting until the
" next search
nnoremap <C-L> :nohl<cr><C-L>

" Use F9 as a quick way to run python files
autocmd FileType python map <buffer> <F9> :w<CR>:exec '!python3' shellescape(@%, 1)<CR>
autocmd FileType python imap <buffer> <F9> <esc>:w<CR>:exec '!python3' shellescape(@%, 1)<CR>


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" => Text, tab and indent related
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" Indentation settings for using hard tabs for indent. Display tabs as
" four characters wide.
set shiftwidth=4
set tabstop=4

" Set the encoding to UTF-8
set encoding=utf-8


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" => Spellcheck configuration
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autocmd FileType tex setlocal spell
set spelllang=en_gb

inoremap <C-l> <c-g>u<Esc>[s1z=gi<c-g>u


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" => Plugins, via VimPlug
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if empty(glob('~/.vim/autoload/plug.vim'))
	silent !curl -fLo ~/.vim/autoload/plug.vim --create-dirs
		\ https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim
	autocmd VimEnter * PlugInstall --sync | source $MYVIMRC
endif

call plug#begin('~/.vim/plugged')

" VimTex pluggin for using latex in Vim
Plug 'lervag/vimtex'
let g:tex_flavor='latex'
let g:vimtex_view_method='zathura'
let g:vimtex_quickfix_mode=0

" Vim Snips for latex snippets
Plug 'sirver/ultisnips'
let g:UltiSnipsExpandTrigger = '<tab>'
let g:UltiSnipsJumpForwardTrigger = '<tab>'
let g:UltiSnipsJumpBackwardTrigger = '<s-tab>'
let g:UltiSnipsEditSplit = 'vertical'

" Color scheme wal
Plug 'dylanaraps/wal'

" Comment and uncomment using "gcc" command
Plug 'tpope/vim-commentary'

" Goyo, Distraction-free writing in Vim
Plug 'junegunn/goyo.vim'

call plug#end()

" Set colorscheme
colorscheme wal
set background=dark


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" => Goyo settings
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"Shortcut for entering Goyo
nmap <leader>g :Goyo<cr>

" Ensure :q to quit even when Goyo is active
" https://github.com/junegunn/goyo.vim/wiki/Customization
function! s:goyo_enter()
	let b:quitting = 0
	let b:quitting_bang = 0
	autocmd QuitPre <buffer> let b:quitting = 1
	cabbrev <buffer> q! let b:quitting_bang = 1 <bar> q!
endfunction

function! s:goyo_leave()
	" Quit Vim if this is the only remaining buffer
	if b:quitting && len(filter(range(1, bufnr('$')), 'buflisted(v:val)')) == 1
		if b:quitting_bang
			qa!
		else
			qa
		endif
	endif
endfunction

autocmd! User GoyoEnter call <SID>goyo_enter()
autocmd! User GoyoLeave call <SID>goyo_leave()