Rearranged and added descriptions what most of the stuff does.

dotfiles/.vimrc

@@ -1,7 +1,10 @@
 set encoding=utf-8
 
 
-"vim-plug installation
+set nocompatible              " be iMproved, required
+
+
+"vim-plug installation (auto installs on new machines)
 
 if empty(glob('~/.vim/autoload/plug.vim'))
   silent !curl -fLo ~/.vim/autoload/plug.vim --create-dirs
@@ -10,34 +13,80 @@ if empty(glob('~/.vim/autoload/plug.vim'))
 endif
 
 
-set nocompatible              " be iMproved, required
-
 call plug#begin('~/.vim/bundle')
 
-
+" Add git changes to fron of the line
 Plug 'airblade/vim-gitgutter'
+
+" Java autocomplete
 Plug 'artur-shaik/vim-javacomplete2'
+
+" Generates a lift of todo comments
 Plug 'chauncey-garrett/vim-tasklist'
+
+" Fuzzy file finder
 Plug 'ctrlpvim/ctrlp.vim'
+
+" I need thsi for python
 Plug 'davidhalter/jedi-vim'
+
+" Linter and analyse tool
 Plug 'dense-analysis/ale'
+
+" Forces <Tab> to do what I want (autocomplete etc.)
 Plug 'ervandew/supertab'
+
+" Adds the closing equivalent of everything that opens: ""[]()....
 Plug 'jiangmiao/auto-pairs'
+
+" Git commit browser
 Plug 'junegunn/gv.vim'
+
+" When pressing " or @, it shows a popup with the register content.
 Plug 'junegunn/vim-peekaboo'
+
+" The package manager itself.
 Plug 'junegunn/vim-plug'
+
+" Add swift support
 Plug 'keith/swift.vim'
+
+" Latex, I guess? Have to check if I actually need this.
 Plug 'LaTeX-Box-Team/LaTeX-Box'
+
+" I use it as my snippet manager, but it is actually for HTML.
 Plug 'mattn/emmet-vim'
+
+" Necessary to use my emmet json snippet file
 Plug 'mattn/webapi-vim'
+
+" vue support
 Plug 'posva/vim-vue'
+
+" Makes (un)commenting out stuff much easier.
+Plug 'preservim/nerdcommenter'
+
+" My light theme.
+Plug 'NLKNguyen/papercolor-theme'
+
+" File browser
 Plug 'scrooloose/nerdtree'
+
+" Language pack for most languages I use.
 Plug 'sheerun/vim-polyglot'
+
+" Git support for vim
 Plug 'tpope/vim-fugitive'
+
+" Change surrounding stuff fast and reliable
 Plug 'tpope/vim-surround'
+
+" Status line for the bottom of the screen (and a themes pack)
 Plug 'vim-airline/vim-airline'
 Plug 'vim-airline/vim-airline-themes'
-Plug 'Yilin-Yang/vim-markbar'
+
+" Shows vertical lines to make indents more visible
+Plug 'Yggdroot/indentLine'
 
 call plug#end()
 
@@ -107,8 +156,8 @@ augroup END
 " Softtabs, 4 spaces
 set tabstop=4
 set shiftwidth=4
-set shiftround
+set shiftround          " Tabs are rounded to multiples of shiftwidth
-set expandtab
+set expandtab           " Tabs are spaces
 
 " Display extra whitespace
 set list listchars=tab:»·,trail:·,nbsp:·
@@ -116,27 +165,23 @@ set list listchars=tab:»·,trail:·,nbsp:·
 " Use one space, not two, after punctuation.
 set nojoinspaces
 
-" Use The Silver Searcher https://github.com/ggreer/the_silver_searcher
+" Make it obvious where 80 characters is (Python only)
-"if executable('ag')
+autocmd FileType python setlocal colorcolumn=81
-"  " Use Ag over Grep
-"  set grepprg=ag\ --nogroup\ --nocolor
 
-"  " Use ag in fzf for listing files. Lightning fast and respects .gitignore
+" Highlight "self." in different color in python files:
-"  let $FZF_DEFAULT_COMMAND = 'ag --literal --files-with-matches --nocolor --hidden -g ""'
+augroup python_syntax_extra
+  autocmd!
+  autocmd! Syntax python :syn keyword Keyword self
+augroup END
 
-"  if !exists(":Ag")
+" Line numbers with the width of 5 digits
-"    command -nargs=+ -complete=file -bar Ag silent! grep! <args>|cwindow|redraw!
-"    nnoremap \ :Ag<SPACE>
-"  endif
-"endif
-
-" Make it obvious where 80 characters is
-autocmd FileType python setlocal textwidth=80 colorcolumn=+1
-
-" Numbers
 set number
 set numberwidth=5
 
+" Relative line numbers, but real line number for current line
+set number relativenumber
+set nu rnu
+
 " Autocomplete menu for command mode
 set wildmenu
 set wildmode=longest:full,full
@@ -157,15 +202,6 @@ set complete+=kspell
 "Autocompletion syntax:
 set omnifunc=syntaxcomplete#Complete
 
-" Local config
-if filereadable($HOME . "/.vimrc.local")
-  source ~/.vimrc.local
-endif
-
-" Relative line numbers, but real line number for current line
-set number relativenumber
-set nu rnu
-
 " Keep 8 rows above and below the kk
 set scrolloff=8
 
@@ -173,6 +209,10 @@ set scrolloff=8
 nnoremap j gj
 nnoremap k gk
 
+" Use e and E to jump to start or end of a line.
+nnoremap e ^
+nnoremap E $
+
 " Do not cut words when breaking lines.
 set linebreak
 
@@ -181,6 +221,12 @@ set ignorecase
 set smartcase
 set hlsearch
 
+" Stop highlighting search results.
+nnoremap <leader><space> :nohlsearch<CR>
+
+" Search replace bind:
+nnoremap S :%s//g<Left><Left>
+
 " Strip trailing whitespaces on each save
 fun! <SID>StripTrailingWhitespaces()
     let l = line(".")
@@ -191,27 +237,17 @@ endfun
 autocmd BufWritePre * :call <SID>StripTrailingWhitespaces()
 
 " Indent and unindent with tab.
-
 nnoremap <Tab> >>_
 nnoremap <S-Tab> <<_
 inoremap <S-Tab> <C-D>
 vnoremap <Tab> >gv
 vnoremap <S-Tab> <gv
 
-" Fuzzy file search by default:
-set path+=**
-
-"Python paths (installed with "pip3 install <package> --user)
-"let $PATH.=':' . $HOME . '/Library/Python/3.7/'
-
 " Remap buffer navigation:
 map gn :bn<cr>
 map gN :bp<cr>
 map gp :bp<cr>
 
-" indent for curly brackets:
-"inoremap {<cr> {<cr>}<c-o><s-o>
-
 " Toggle through splits:
 nnoremap <leader>w <C-w>w
 nnoremap <leader>W <C-w>W
@@ -221,20 +257,16 @@ let g:user_emmet_leader_key=','
 let g:user_emmet_settings = webapi#json#decode(join(readfile(expand('~/.vim/customizations/vim-emmet-mysnippets.json')), "\n"))
 
 " jedi-vim:
-
+let g:jedi#popup_on_dot = 1
-let g:jedi#popup_on_dot = 0
-
 
 " Peekaboo window width
 let g:peekaboo_window = 'vert bo 65new'
 
-
 " javacomplete2
 autocmd FileType java setlocal omnifunc=javacomplete#Complete
 
-
 " tasklist settings
-let g:tlTokenList = ["FIXME", "TODO", "todo"]
+let g:tlTokenList = ["FIXME", "TODO", "todo"] " keywords for todos
 let g:tlWindowPosition = 1 "Open window on bottom, 0 would be top
 let g:tlRememberPosition = 0
 map <leader>t <Plug>TaskList
@@ -246,28 +278,23 @@ map <C-n> :NERDTreeToggle<CR>
 let g:airline#extensions#tabline#enabled = 1 " Show buffers as tabs
 
 " ale settings
-
-
 let g:ale_linters = {'python': ['flake8', 'mypy', 'pylint', 'prospector']}
-
 let g:ale_fixers = {'python': ['isort', 'black'],
                    \'json': ['fixjson'],
                    \'java': ['uncrustify'],
                    \'tex': ['latexindent']}
 
 
-" Install the linter and fixer for a specific language automatically
+" colorscheme toggle dark/light:
-
-command InstallLinterFixPython python3 import pip; [pip.main(["install", singlepackage, "--user"]) for singlepackage in "flake8 pylint mypy prospector black isort".split(" ")]
-
-
-" colorscheme toggle:
-
 function! s:SwitchColorscheme()
     if g:colors_name == 'darcula'
-        colorscheme default
+        set background=light
+        colorscheme PaperColor
+        AirlineTheme papercolor
     else
         colorscheme darcula
+        set background=dark
+        AirlineTheme dark
     endif
 endfunction
 map <silent> <F4> :call <SID>SwitchColorscheme()<CR>
@@ -275,7 +302,6 @@ map <silent> <F4> :call <SID>SwitchColorscheme()<CR>
 colorscheme darcula
 
 " Highlight whole todo comment, not just the keyword itself:
-
 augroup myTodo
   autocmd!
   autocmd Syntax * syntax match myTodo /\v\_.<(TODO|FIXME|todo|fixme).*/hs=s+1 containedin=.*Comment
@@ -296,3 +322,28 @@ augroup END
 " Bind ctrl+u to jump list jump (opposite of ctrl+o)
 nnoremap <C-u> <C-i>
 
+" Load changes to a file automatically from drive if the file has not been
+" changed yet
+set autoread
+
+" Generate help tags to find the docs with :help
+"if !empty((globpath(&rtp, '~/.vim/doc/**'))
+"    helptags ~/.vim/doc
+"endif
+
+" Use persistent history. (so undo from older sessions can be used)
+if !isdirectory("$HOME/.vim/.vim-undo-dir")
+    silent !mkdir -p $HOME/.vim/.vim-undo-dir
+endif
+set undodir=$HOME/.vim/.vim-undo-dir
+set undofile
+
+" Set the character which is used as tab indent marker
+let g:indentLine_char = '┊'
+
+" Load local config if there is one
+if filereadable($HOME . "/.vimrc.local")
+  source ~/.vimrc.local
+endif
+
+