vimrc

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"
" Vim configuration.
"
" Description:
"     Install this vim configuration from:
"
"         https://github.com/roaldnefs/.vim
"
"     Based upon the following vim configurations:
"
"         https://github.com/jessfraz/.vim
"         https://github.com/amix/vimrc
"
" Maintainers:
"     Roald Nefs <info@roaldnefs.com>
"     Jeffrey Bouter <github@kn0x.org>
"
" Sections:
"    -> General
"    -> VIM user interface
"    -> Colors and Fonts
"    -> Files and backups
"    -> Text, tab and indent related
"    -> Visual mode related
"    -> Moving around, tabs and buffers
"    -> Status line
"    -> Editing mappings
"    -> vimgrep searching and cope displaying
"    -> Spell checking
"    -> Misc
"    -> Plugin specific configuration
"    -> Helper functions
"    -> External configuration
"
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" => General
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" Load plugins using Pathogen.
execute pathogen#infect()
call pathogen#helptags()

" Be improved.
set nocompatible

" Sets how many lines of history VIM has to remember.
set history=500

" Enable filetype plugins.
filetype plugin on
filetype indent on

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

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

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

" Save the using sudo with :W, useful for handling the permission-denied error.
command W w !sudo tee % > /dev/null

" Influence the working of <BS> in Insert mode. This allows backspacing over
" autoindent, line breaks and over start.
set backspace=indent,eol,start


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" => VIM user interface
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" Set 7 lines to the cursor, when moving vertically using j/k.
set so=7

" Turn on the Wild menu.
set wildmenu

set wildmode=list:full

set wildignore+=.hg,.git,.svn                    " Version control
set wildignore+=*.aux,*.out,*.toc                " LaTeX intermediate files
set wildignore+=*.jpg,*.bmp,*.gif,*.png,*.jpeg   " binary images
set wildignore+=*.o,*.obj,*.exe,*.dll,*.manifest " compiled object files
set wildignore+=*.spl                            " compiled spelling word lists
set wildignore+=*.sw?                            " Vim swap files
set wildignore+=*.DS_Store                       " OSX bullshit
set wildignore+=*.luac                           " Lua byte code
set wildignore+=migrations                       " Django migrations
set wildignore+=go/pkg                           " Go static files
set wildignore+=go/bin                           " Go bin files
set wildignore+=go/bin-vagrant                   " Go bin-vagrant files
set wildignore+=*.pyc                            " Python byte code
set wildignore+=*.orig                           " Merge resolution files

" Always show current position.
set ruler

" Show line numbers.
set number

" Height of the command bar.
set cmdheight=2

" A buffer becomes hidden when it is abandoned.
set hid

" Configure backspace so it acts as it should act.
set backspace=eol,start,indent
set whichwrap+=<,>,h,l

" Ignore case when searching.
set ignorecase

" When searching try to be smart about cases.
set smartcase

" Highlight search results.
set hlsearch

" Make comments italic
highlight Comment cterm=italic gui=italic

" Makes search act like search in modern browsers.
set incsearch

" Don't redraw while executing macros (good performance configuration).
set lazyredraw

" For regular expressions turn magic on.
set magic

" Show matching brackets when text indicator is over them.
set showmatch

" How many tenths of a second to blink when matching brackets.
set mat=2

" No annoying sound on errors.
set noerrorbells
set novisualbell
set t_vb=
set tm=500


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" => Colors and Fonts
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" Enable syntax highlighting.
syntax enable

" Enable 256 colors palette in Gnome Terminal.
if $COLORTERM == 'gnome-terminal'
    set t_Co=256
endif

" Set extra options when running in GUI mode.
if has("gui_running")
    set guioptions-=T
    set guioptions-=e
    set t_Co=256
    set guitablabel=%M\ %t
endif

" Set utf8 as standard encoding and en_US as the standard language.
set encoding=utf8

" Use Unix as the standard file type.
set ffs=unix,dos,mac


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" => Files, backups and undo
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" Turn backup off, since most stuff is in version control anyway.
set nobackup
set nowb
set noswapfile


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" => Text, tab and indent related
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" Use spaces instead of tabs.
set expandtab

" Be smart when using tabs.
set smarttab

" A tab should be 4 spaces wide.
set shiftwidth=4
set tabstop=4

" Linebreak on 500 characters.
set lbr
set tw=500

" Configure indentation.
set ai       " Enable auto indent
set si       " Enable smart indent

" Wrap lines.
set nowrap
" Do not automatically wrap text when typing.
set formatoptions-=t

au BufNewFile,BufRead *.vim setlocal noet ts=4 sw=4 sts=4
au BufNewFile,BufRead *.txt setlocal noet ts=4 sw=4
au BufNewFile,BufRead *.md setlocal spell noet ts=4 sw=4
au BufNewFile,BufRead *.json setlocal expandtab ts=2 sw=2
au BufNewFile,BufRead *.yml,*.yaml setlocal expandtab ts=2 sw=2
au BufNewFile,BufRead *.sls setlocal expandtab ts=2 sw=2
au BufNewFile,BufRead *.sh,*.bash setlocal expandtab ts=2 sw=2
au BufNewFile,BufRead *.go setlocal noet ts=4 sw=4 sts=4
au BufNewFile,BufRead *.pp setlocal expandtab ts=2 sw=2
au BufNewFile,BufRead *rc set expandtab ts=2 sw=2 sts=2
autocmd FileType sh set expandtab ts=2 sw=2
autocmd FileType dockerfile set noexpandtab
autocmd FileType fstab,systemd set noexpandtab
autocmd FileType gitconfig,sh,toml set noexpandtab
autocmd BufNewFile,BufRead *.py setlocal tabstop=4 softtabstop=4 shiftwidth=4 textwidth=80 smarttab expandtab
autocmd FileType gitcommit setlocal spell


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" => Visual mode related
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" => Moving around, tabs, windows and buffers
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" Disable highlight when <leader><cr> is pressed.
map <silent> <leader><cr> :noh<cr>

" Smart way to move between windows.
map <C-j> <C-W>j
map <C-k> <C-W>k
map <C-h> <C-W>h
map <C-l> <C-W>l

" Return to last edit position when opening files (You want this!).
au BufReadPost * if line("'\"") > 1 && line("'\"") <= line("$") | exe "normal! g'\"" | endif

" Move vertically by visual line.
nnoremap j gj
nnoremap k gk

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" => Status line
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" Always show the status line
set laststatus=2


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" => Editing mappings
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" => Spell checking
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" Pressing ,ss will toggle and untoggle spell checking.
map <leader>ss :setlocal spell!<cr>


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" => Misc
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" Toggle past mode on and off.
map <leader>pp :setlocal paste!<cr>

" Make tabs, trailing whitespace, and non-breaking spaces visible.
exec "set listchars=tab:\uBB\uBB,trail:\uB7,nbsp:~"
set list


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" => Plugin specific configuration
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" NERDTree, toggle NERDTree using <C-n>.
map <C-n> :NERDTreeToggle<CR>
" Close vim if the only window left open is NERDTree.
autocmd bufenter * if (winnr("$") == 1 && exists("b:NERDTree") && b:NERDTree.isTabTree()) | q | endif

" vim-go, isable warnings on older Vim releases.
let g:go_version_warning = 0


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" => Helper functions
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" => External configuration
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" Load optional external configuration file.
try
    source ~/.vimrc_personal
catch
    " No such file? No problem, just ignore it...
endtry