update vimrc and changes used plugins

vim/.vimrc

@@ -78,21 +78,9 @@ let g:airline#extensions#tabline#enabled = 1
 " Close NERDTree if it is the last window
 " autocmd bufenter * if (winnr("$") == 1 && exists("b:NERDTree") && b:NERDTree.isTabTree()) | q | endif
 
-" Syntastic options
-let g:syntastic_always_populate_loc_list = 1
-let g:syntastic_auto_loc_list = 1
-let g:syntastic_check_on_open = 1
-let g:syntastic_check_on_wq = 1
-let g:syntastic_aggregate_errors = 1
-let g:syntastic_go_checkers = ['golint', 'govet', 'errcheck']
-" let g:syntastic_mode_map = { 'mode': 'active', 'passive_filetypes': ['go'] }
-let g:syntastic_javascript_checkers = ['eslint']
-let g:syntastic_java_javac_config_file_enabled = 1
-
 " Vim-go options
 let g:go_fmt_command = "goimports"
 let g:go_fmt_autosave = 1
-let g:go_metalinter_command = "golangci-lint"
 let g:go_metalinter_enabled = ['govet', 'golint', 'errcheck', 'staticcheck', 'gosimple', 'structcheck', 'varcheck', 'ineffassign', 'deadcode', 'gosec', 'unconvert', 'dupl', 'goconst', 'gocyclo', 'misspell', 'unparam', 'lll', 'interfacer', 'nakedret', 'scopelint']
 let g:go_metalinter_autosave = 1
 "let g:go_metalinter_autosave_enabled = ['govet', 'golint', 'errcheck']
@@ -113,22 +101,17 @@ let g:go_highlight_chan_whitespace_error = 1
 let g:go_highlight_space_tab_error = 1
 let g:go_highlight_trailing_whitespace_error = 1
 let g:go_highlight_variable_declarations = 1
-let g:go_info_mode = 'gopls'
+let g:go_doc_popup_window=1
+let g:go_def_mapping_enabled = 0
+let g:go_doc_keywordprg_enabled = 0
+let g:go_code_completion_enabled = 0
+let g:go_gopls_use_placeholders = 1
+let g:go_gopls_complete_unimported = 1
 let g:go_test_show_name = 1
 let g:go_test_timeout= '60s'
 let g:go_auto_type_info = 1
 let g:go_jump_to_error = 0
-if has("autocmd")
-    autocmd FileType go nmap <leader>b  <Plug>(go-build)
-    autocmd FileType go nmap <leader>r  <Plug>(go-run)
-    autocmd FileType go nmap <leader>t  <Plug>(go-test)
-    autocmd FileType go nmap <leader>T  <Plug>(go-test-func)
-    autocmd FileType go nmap <leader>c  <Plug>(go-coverage-toggle)
-    autocmd FileType go nmap <leader>a  <Plug>(go-alternate-edit)
-    autocmd FileType go nmap <leader>f  <Plug>(go-fmt)
-    autocmd FileType go nmap <leader>d  <Plug>(go-def)
-    autocmd FileType go nmap <leader>m  <Plug>(go-metalinter)
-endif
+let g:go_auto_sameids = 0
 
 " vimwiki options
 let g:vimwiki_list = [{'path': '~/Notebook/work', 
@@ -151,6 +134,12 @@ let g:indent_guides_auto_colors = 0
 autocmd VimEnter,Colorscheme * :hi IndentGuidesOdd  ctermbg=none
 autocmd VimEnter,Colorscheme * :hi IndentGuidesEven ctermbg=black
 
+" CoC options
+
+" ALE options
+let g:ale_completion_enabled = 0
+let g:ale_fix_on_save = 0
+
 call plug#begin('~/.vim/plugged')
 
     Plug 'scrooloose/nerdtree'
@@ -170,11 +159,10 @@ call plug#begin('~/.vim/plugged')
     Plug 'mattn/emmet-vim'
     Plug 'ollykel/v-vim'
 
-    Plug 'scrooloose/syntastic'
-    Plug 'mtscout6/syntastic-local-eslint.vim'
-    Plug 'kien/ctrlp.vim'
     Plug 'liuchengxu/vim-clap'
-    Plug 'valloric/youcompleteme'
+    Plug 'neoclide/coc.nvim', {'branch': 'release'}
+    Plug 'dense-analysis/ale'
+    Plug 'joereynolds/vim-minisnip'
 
     Plug 'aklt/plantuml-syntax'
     Plug 'scrooloose/vim-slumlord'
@@ -196,3 +184,36 @@ nnoremap <leader>h :cclose<CR>
 nnoremap <leader>s :keeppattern %s/\s\+$//<CR>
 
 autocmd BufNewFile,BufRead *.tmpl set syntax=gohtmltmpl 
+
+nmap <silent> gd <Plug>(coc-definition)
+nmap <silent> gy <Plug>(coc-type-definition)
+nmap <silent> gi <Plug>(coc-implementation)
+nmap <silent> gr <Plug>(coc-references)
+nmap <silent> go <Plug>(coc-list-outline)
+
+nnoremap <silent> K :call <SID>show_documentation()<CR>
+nmap <leader>rn <Plug>(coc-rename)
+
+function! s:show_documentation()
+  if (index(['vim','help'], &filetype) >= 0)
+    execute 'h '.expand('<cword>')
+  else
+    call CocAction('doHover')
+  endif
+endfunction
+
+nmap <C-p> :Clap files<CR>
+nmap <C-p>b :Clap buffers<CR>
+
+if has("autocmd")
+    autocmd FileType go nmap <leader>b  <Plug>(go-build)
+    autocmd FileType go nmap <leader>r  <Plug>(go-run)
+    autocmd FileType go nmap <leader>t  <Plug>(go-test)
+    autocmd FileType go nmap <leader>T  <Plug>(go-test-func)
+    autocmd FileType go nmap <leader>c  <Plug>(go-coverage)
+    autocmd FileType go nmap <leader>cc  <Plug>(go-coverage-clean)
+    autocmd FileType go nmap <leader>a  <Plug>(go-alternate-edit)
+    autocmd FileType go nmap <leader>f  <Plug>(go-fmt)
+    autocmd FileType go nmap <leader>d  <Plug>(go-def)
+    autocmd FileType go nmap <leader>m  <Plug>(go-metalinter)
+endif