init.vim

call plug#begin()
Plug 'zchee/deoplete-go', { 'do': 'make'}
Plug 'Shougo/deoplete.nvim'
Plug 'fatih/vim-go'
Plug 'scrooloose/nerdtree'
Plug 'majutsushi/tagbar'
Plug 'jiangmiao/auto-pairs'
Plug 'junegunn/fzf', { 'dir': '~/.fzf', 'do': './install --all' }
call plug#end()

set completeopt+=noinsert,menuone,longest,noselect

let g:deoplete#enable_at_startup = 1
let g:deoplete#ignore_sources = {}
let g:deoplete#ignore_sources._ = ['buffer', 'member', 'tag', 'file', 'neosnippet']
let g:deoplete#sources#go#sort_class = ['func', 'type', 'var', 'const']

" Use partial fuzzy matches like YouCompleteMe
call deoplete#custom#set('_', 'matchers', ['matcher_full_fuzzy'])
  
let g:deoplete#sources#go#align_class = 1

inoremap <silent> <CR> <C-r>=<SID>my_cr_function()<CR>
function! s:my_cr_function() abort
    return deoplete#mappings#close_popup() . "\<CR>"
endfunction

set number
syntax enable
colorscheme kalisi

nmap <silent> <A-Up> :wincmd k<CR>
nmap <silent> <A-Down> :wincmd j<CR>
nmap <silent> <A-Left> :wincmd h<CR>
nmap <silent> <A-Right> :wincmd l<CR>

" size of a hard tabstop
set tabstop=4

" size of an "indent"
set shiftwidth=4

" a combination of spaces and tabs are used to simulate tab stops at a width
" other than the (hard)tabstop
set softtabstop=4

"------------------------------------------------------------------------------
" NERDTree
"------------------------------------------------------------------------------

" General properties
let NERDTreeDirArrows=1
let NERDTreeMinimalUI=1
let NERDTreeIgnore=['\.o$', '\.pyc$', '\.php\~$']
let NERDTreeWinSize = 35

" Make sure that when NT root is changed, Vim's pwd is also updated
let NERDTreeChDirMode = 2
let NERDTreeShowLineNumbers = 1
let NERDTreeAutoCenter = 1

" Locate file in hierarchy quickly
map <leader>T :NERDTreeFind<cr>

" Toogle on/off
nmap <leader>o :NERDTreeToggle<cr>


nmap <F8> :TagbarToggle<CR>
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'
\ }


"------------------------------------------------------------------------------
" Vim-go
"------------------------------------------------------------------------------
let g:go_fmt_fail_silently = 1
let g:go_fmt_command = "gofmt" "Explicited the formater plugin (gofmt, goimports, goreturn...)

" Show a list of interfaces which is implemented by the type under your cursor
au FileType go nmap <Leader>s <Plug>(go-implements)

" Show type info for the word under your cursor
au FileType go nmap <Leader>i <Plug>(go-info)

" Open the relevant Godoc for the word under the cursor
au FileType go nmap <Leader>gd <Plug>(go-doc)
au FileType go nmap <Leader>gv <Plug>(go-doc-vertical)

" Open the Godoc in browser
au FileType go nmap <Leader>gb <Plug>(go-doc-browser)

" Run/build/test/coverage/definiton
au FileType go nmap <leader>r <Plug>(go-run)
au FileType go nmap <leader>b <Plug>(go-build)
au FileType go nmap <leader>t <Plug>(go-test)
au FileType go nmap <leader>c <Plug>(go-coverage)
au FileType go nmap <leader>d <Plug>(go-def-tab)

nmap <leader>T :tabnew term://$SHELL <CR>
inoremap <C-o> <c-o>:update<cr>
nmap <C-o> :update<cr>

"set completeopt+=noinsert
let g:go_highlight_functions = 1
let g:go_highlight_methods = 1
let g:go_highlight_structs = 1
let g:go_highlight_interfaces = 1
let g:go_highlight_operators = 1
let g:go_highlight_build_constraints = 1
let g:go_fmt_command = "goimports"
let g:go_term_enabled = 0

"This unsets the "last search pattern" register by hitting return
nnoremap <CR> :noh<CR><CR>
nnoremap <C-Left> :tabprevious<CR>
nnoremap <C-Right> :tabnext<CR>
nnoremap <C-w> :tabclose<CR>
tnoremap <Esc> <C-\><C-n>

set ignorecase
autocmd VimEnter * NERDTree