.vimrc

" PLUGINS VIA VUNDLE

" Vundle Commands
" :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
" :PluginUpdate     - checks installed plugins for updates

" when making changes, you must reload the file before running Vundle commands
" :so %

" Package dependencies
" tagbar: universal-ctags
" vim-markdown-preview: grip
 
" Necessary settings for Vundle
set nocompatible
filetype off

" Global settings
set autoindent                  " Auto indent new lines
set nonumber                    " Do not show line numbers
set ruler                       " Show line/column number in bottom right
set rulerformat=%l,%v           " Format ruler
set expandtab                   " Insert space characters on tab
set tabstop=2                   " Number of space chars for tab
set shiftwidth=2                " Number of space chars for indentation
set wildmenu                    " Enable menu at bottom of the vim window
set wildmode=longest:list,full  " File system tab completion
set splitright                  " Open verticle split pane to the right
set splitbelow                  " Open horizontal split plane below
set foldcolumn=0                " Column spaces between left border and text
set wrap                        " Wrap words at EOL
set linebreak                   " Only insert line breaks on enter key press
set nolist                      " List disables linebreak
set wrap linebreak nolist       " Do not automatically insert line breaks
set clipboard=unnamedplus       " Use the system clipboard
set autoread                    " Automatically read in amended files
set hlsearch                    " Highlight the search terms during a search
set nowrapscan                  " Do not wrap around to top of search results
set colorcolumn=80              " Show marker at column 80
set laststatus=0                " Do not show status line 
set fillchars=""                " Remove verticle split seperator

" Put vim generated files in the vim application directory. These directories
" need to be created manually.
set backupdir=~/.vim/backup_files//  " Backup files dir
set directory=~/.vim/swap_files//    " Swap files dir
set undodir=~/.vim/undo_files//      " Undo files dir

" Solarized color scheme needs to be installed manually.
" https://github.com/altercation/vim-colors-solarized
syntax enable
set background=dark
colorscheme solarized
set t_Co=16
highlight SignColumn ctermbg=0
highlight ColorColumn ctermbg=0
highlight VertSplit ctermbg=0 ctermfg=0

" Make navigating between panes easier. Right/left navigations are able to
" wrap around
nnoremap <C-J> <C-W><C-J>
nnoremap <C-K> <C-W><C-K>
nnoremap <C-L> <C-W>w
nnoremap <C-H> <C-W>W

" Set the runtime path to include Vundle and initialize
set rtp+=~/.vim/bundle/Vundle.vim

" Plugins must be defined in between vundle#begin/end.
call vundle#begin()

" Let Vundle manage Vundle (required)
Plugin 'VundleVim/Vundle.vim'

" Show the git diff in the sign column
Plugin 'airblade/vim-gitgutter'

" File structure tree
Plugin 'scrooloose/nerdtree'

" Tagbar that parses file structure
Plugin 'majutsushi/tagbar'

" vim-gutentags auto-generates ctags so you don't have to worry about it.
" Requires universal-ctags.
Plugin 'ludovicchabant/vim-gutentags'

" Save the tag file in the hidden git directory
let g:gutentags_ctags_tagfile=".git/tags"

" Don't generate a tag file for golang files
function! GutentagsEnable(path) abort
    return fnamemodify(a:path, ':e') != 'go'
endfunction

let g:gutentags_enabled_user_func = 'GutentagsEnable'

" Syntax checking
Plugin 'scrooloose/syntastic'
let g:syntastic_always_populate_loc_list = 1    " enables :lnext and :lprev commands
let g:syntastic_auto_loc_list = 0               " don't automatically open location list window 
let g:syntastic_loc_list_height = 10            " height of the error location list
let g:syntastic_check_on_open = 0               " don't check syntax on open
let g:syntastic_check_on_wq = 0                 " skip syntax check if :wq command is used
let g:syntastic_aggregate_errors = 1            " don't stop on first error found
let g:syntastic_javascript_checkers = ['eslint']
let g:syntastic_typescript_checkers = ['eslint']
let g:syntastic_go_checkers = ['golint', 'govet']
let g:syntastic_mode_map = { 'mode': 'active', 'passive_filetypes': ['go'] }

":Bdelete - close a buffer without exiting split pane
Plugin 'moll/vim-bbye'

" Markdown preview
Plugin 'iamcco/markdown-preview.nvim' 

" tmux navigation keybindings
Plugin 'christoomey/vim-tmux-navigator'

" Disable tmux navigator when zooming the Vim pane
let g:tmux_navigator_disable_when_zoomed = 1  

" Fuzzy file finder
" Plugin 'wincent/command-t'
Plugin 'ctrlpvim/ctrlp.vim'

" Git wrapper
Plugin 'tpope/vim-fugitive'
Plugin 'tpope/vim-rhubarb'  " Gbrowse cmd handler for Github

" Syntax highlighting
"
" Plugin 'pangloss/vim-javascript'                
" let g:javascript_plugin_jsdoc = 1
"
" Plugin 'leafgarland/typescript-vim'
" Plugin 'elzr/vim-json'
" Plugin 'ekalinin/Dockerfile.vim'
" Plugin 'gabrielelana/vim-markdown'

" Syntax highlighting for all languages
Plugin 'sheerun/vim-polyglot'

" Go tools and syntax highlighting
Plugin 'fatih/vim-go'

let g:go_list_type = "quickfix"    " use quickfix instead of location list
let g:go_list_height = 10          " specify window height of quickfix
autocmd FileType qf wincmd J       " open quickfix on the bottom, use full screen
let g:go_fmt_command = "goimports" " run goimports on save


call vundle#end()                    " required
filetype plugin indent on            " required

" vim-tmux-navigator

" vim-go
" vim-json
let g:vim_json_syntax_conceal = 0

" tagbar
let g:tagbar_foldlevel = 0          " have folds closed by default
let g:tagbar_autoshowtag = 2        " don't automatically open tag folds
let g:tagbar_iconchars = ['+', '-'] " fold icons to use
let g:tagbar_vertical = 20          " display tagbar on bottom of screen
let g:tagbar_autofocus = 1          " move cursor to tagbar window when opened
let g:tagbar_autoclose = 1          " close tagbar window when tag is selected
let g:tagbar_sort = 0               " sort tags by file position by default
let g:tagbar_compact = 1            " omit blank lines in between top-level scopes

" gitgutter
set signcolumn=yes                  " show signcolum even when empty
let g:gitgutter_diff_base = 'head'  " default diff against head
let g:gitgutter_max_signs = 2000    " number of signs allowed per file

" ctrlp
let g:ctrlp_prompt_mappings = {
  \ 'ToggleByFname()':      ['<F7>'],
  \ 'PrtDeleteEnt()':       ['<c-d>'],
  \ 'PrtClearCache()':      ['<c-f>'],
  \}


" Markdown preview
" set syntax=off
let g:mkdp_refresh_slow = 1
let g:mkdp_preview_options = {
    \ 'disable_sync_scroll': 1,
    \ }

" ---NERDTree---

" Togglethe NERDTree file structure
nmap <Esc>n :NERDTreeToggle<CR><C-w> 

" Open NERDTree to the local directory and highlight the opened file
nmap <Esc>l :NERDTreeFind<CR><C-w>

" Open NERDTree to the global working directory (:pwd)
nmap <Esc>g :NERDTreeCWD<CR><C-w> 

" Toggle tagbar
nmap <Esc>m :TagbarToggle<CR>

" Update gitgutter and unset the 'last search pattern' register
nnoremap <CR> :GitGutterAll<CR>:noh<CR><CR>

" ctags - close the current buffer and go one step up the godef stack
noremap <Esc>t :Bdelete<CR>:GoDefPop<CR>

" Toggle line numbers
nmap <Leader>n :set invnumber<CR>

" Toggle spellcheck
nmap <Leader>s :set spell! spelllang=en_us<CR>

" Git blame
nmap <Esc>b :Gblame<CR>

" CtrlP
nmap <Leader>t :CtrlPMixed<CR>
nmap <Leader>b :CtrlPBuffer<CR>

" Markdown preview
nmap <C-p> :MarkdownPreview<CR>

" COMMANDS

" copy filename to clipboard
cnoreabbrev cpfilename let @*=expand("%")
"
" copy filepath to clipboard
cnoreabbrev cppath let @*=expand("%:p")

" set working directory to current file
cnoreabbrev cdcf cd %:p:h

" vim/bbye
cnoreabbrev bd Bdelete

" vim-go
cnoreabbrev gb GoBuild
cnoreabbrev gt GoTest
cnoreabbrev gtc GoTestCompile

" GoReferrers shows a list of all package invocations of a method
cnoreabbrev gr GoReferrers

" GoDescribe shows the method set and fields of a struct
cnoreabbrev gd GoDescribe

" GoImplements shows the interfaces that a type implements
cnoreabbrev gi GoImplements

cnoreabbrev gitdiffmaster let g:gitgutter_diff_base = 'master'
cnoreabbrev gitdiffhead let g:gitgutter_diff_base = 'HEAD'

" CUSTOM TAGS

" tagbar - go support
let g:tagbar_type_go = {
	\ 'ctagstype' : 'go',
	\ 'kinds'     : [
		\ 'p:package',
		\ 'i:imports:1',
		\ 'c:constants',
		\ 'v:variables',
		\ 't:types',
		\ 'n:interfaces',
		\ 'w:fields',
		\ 'e:embedded',
		\ 'm:methods',
		\ 'r:constructor',
		\ 'f:functions'
	\ ],
	\ 'sro' : '.',
	\ 'kind2scope' : {
		\ 't' : 'ctype',
		\ 'n' : 'ntype'
	\ },
	\ 'scope2kind' : {
		\ 'ctype' : 't',
		\ 'ntype' : 'n'
	\ },
	\ 'ctagsbin'  : 'gotags',
	\ 'ctagsargs' : '-sort -silent'
\ }

" FUNCTIONS

"" Zoom / Restore window.
function! s:ZoomToggle() abort
    if exists('t:zoomed') && t:zoomed
        execute t:zoom_winrestcmd
        let t:zoomed = 0
    else
        let t:zoom_winrestcmd = winrestcmd()
        resize
        vertical resize
        let t:zoomed = 1
    endif
endfunction
command! ZoomToggle call s:ZoomToggle()
nnoremap <silent> <C-A> :ZoomToggle<CR>