Neovim config

init.vim

" To do
" - Configure feline
" - Configure LSP starting from scratch
" - Learn tmux

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


" initialize plugin system
call plug#end()

" ===============
" GENERAL OPTIONS
" ===============

set number
set tabstop=2
set shiftwidth=2 " always uses spaces instead of tab characters
set expandtab
set updatetime=500
set shortmess+=c " don't give |ins-completion-menu| messages.
set signcolumn=yes " always show signcolumns
set mouse=a " enable mouse in all modes

" ===========
" KEY MAPPING
" ===========

inoremap jk <ESC> " non-recurively cancel insert mode with jk
nnoremap <C-n> :NERDTreeToggle<CR>
vnoremap ++ <plug>NERDCommenterToggle " these use a key binding in iTerm2
nnoremap ++ <plug>NERDCommenterToggle " these use a key binding in iTerm2

" moving line(s) up or down
nnoremap m :m -2<CR> " move line up
nnoremap n :m +1<CR> " move line down
xnoremap m :m-2<CR>gv=gv " move selected lines up one line
xnoremap n :m'>+<CR>gv=gv " move selected lines down one line

" Use K to show documentation in preview window
nnoremap <silent> K :call <SID>show_documentation()<CR>

" =============
" AUTO COMMANDS
" =============

" open NERDTree automatically
autocmd StdinReadPre * let s:std_in=1
autocmd VimEnter * NERDTree

" highlight currently open buffer in NERDTree
autocmd BufEnter * call SyncTree()

" push this config file to github gist when saving it
autocmd BufWritePost * if expand('%:t') == "init.vim" | call GitPushConfig() | endif

" ====================
" PLUGIN CONFIGURATION
" ====================

colorscheme tokyonight

" call feline initialization in lua
lua << EOF
  require('feline').setup()
EOF

" configure language servers
lua << EOF
  require('lspconfig').tsserver.setup {}
EOF

let g:NERDTreeGitStatusWithFlags = 1
"let g:WebDevIconsUnicodeDecorateFolderNodes = 1
"let g:NERDTreeGitStatusNodeColorization = 1
"let g:NERDTreeColorMapCustom = {
    "\ "Staged"    : "#0ee375",  
    "\ "Modified"  : "#d9bf91",  
    "\ "Renamed"   : "#51C9FC",  
    "\ "Untracked" : "#FCE77C",  
    "\ "Unmerged"  : "#FC51E6",  
    "\ "Dirty"     : "#FFBD61",  
    "\ "Clean"     : "#87939A",   
    "\ "Ignored"   : "#808080"   
    "\ }                         

" let g:NERDTreeIgnore = ['^node_modules$']

" =========
" FUNCTIONS
" =========

" sync open file with NERDTree
" check if NERDTree is open or active
function! IsNERDTreeOpen()        
  return exists("t:NERDTreeBufName") && (bufwinnr(t:NERDTreeBufName) != -1)
endfunction

" call NERDTreeFind iff NERDTree is active, current window contains a modifiable
" file, and we're not in vimdiff
function! SyncTree()
  if &modifiable && IsNERDTreeOpen() && strlen(expand('%')) > 0 && !&diff
    NERDTreeFind
    wincmd p
  endif
endfunction

" this function should only be called when this config file is saved!
function! GitPushConfig()
  let l:path = expand('%:p:h')
  let l:d = strftime("%d-%m-%y_%T")
  silent execute "!cd " . l:path . " && git add init.vim && git commit -am ". l:d ." && git push &"
endfunction

function! s:show_documentation()
  if (index(['vim','help'], &filetype) >= 0)
    execute 'h '.expand('<cword>')
  else
    call CocAction('doHover')
  endif
endfunction