check for vimfile features, add settings

vim/vimrc

@@ -9,22 +9,17 @@ if filereadable(expand('$VIMRUNTIME/defaults.vim'))
     source $VIMRUNTIME/defaults.vim
 endif
 
-"vimfile paths
-let myUndoDir = expand("$HOME/.vim/.undo")
-let myBackupDir = expand("$HOME/.vim/.backup")
-let mySwapDir = expand("$HOME/.vim/.swap")
-
-"plug paths
-let plugDir = expand("$HOME/.vim/autoload/plug.vim")
-let pluginDir = expand("$HOME/.vim/plugged")
-let plugRemote = "https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim"
-
 if has('win32')
     let &runtimepath.=",$HOME/.vim"
 endif
 
 "plugins (vim-plug)
 "------------------
+"vim-plug paths
+let plugDir = expand("$HOME/.vim/autoload/plug.vim")
+let pluginDir = expand("$HOME/.vim/plugged")
+let plugRemote = "https://raw.githubusercontent.com/junegunn/vim-plug/master/plug.vim"
+
 "ensure vim-plug is installed on VimEnter
 if empty(glob(plugDir))
     silent execute "!curl -fLo " . shellescape(expand(plugDir)) . " --create-dirs " . shellescape(plugRemote)
@@ -80,21 +75,25 @@ let g:ale_linters = {
 \   'javascript': ['standard'],
 \   'markdown': ['mdl', 'write-good']
 \}
+
 let g:ale_fixers = {
 \   '*': ['remove_trailing_lines', 'trim_whitespace'],
 \   'javascript': ['standard'],
 \   'markdown': ['prettier']
 \}
+
 let g:ale_sign_error = '->'
 let g:ale_sign_warning = '--'
-" let g:ale_lint_on_save = 1
-" let g:ale_fix_on_save = 1
+let g:ale_lint_on_save = 1
+let g:ale_fix_on_save = 1
 
 "md
 let g:vim_markdown_folding_disabled = 1
+let g:vim_markdown_no_default_key_mappings = 1
+let g:vim_markdown_toc_autofit = 1
 
 " colorschemes
-
+" {{{
 " colorscheme 1989
 " colorscheme PaperColor
 " colorscheme gruvbox
@@ -108,6 +107,7 @@ let g:vim_markdown_folding_disabled = 1
 " colorscheme wargrey
 " colorscheme Tomorrow-Night-Bright
 " colorscheme monokai-phoenix
+" }}}
 
 "general settings
 "----------------
@@ -124,9 +124,11 @@ set confirm
 set background=dark
 set number
 set wrap
+set foldmethod=marker
 set listchars=tab:→\ ,extends:›,precedes:‹,nbsp:·,trail:·,eol:¬
 "set list
-set foldmethod=marker
+
+"drawing
 set lazyredraw
 set regexpengine=1
 set redrawtime=10000
@@ -166,18 +168,33 @@ set ttimeoutlen=20 "for keycodes
 set splitbelow
 set splitright
 
-"undo/bkup dirs
+"swap
+let mySwapDir = expand("$HOME/.vim/.swap")
+if !isdirectory(mySwapDir)
+    silent! call mkdir(mySwapDir, "p")
+endif
+let &directory=mySwapDir
+
+"undo
 if has('persistent_undo')
-    call mkdir(myUndoDir, "p")
-    call mkdir(myBackupDir, "p")
-    call mkdir(mySwapDir, "p")
+    let myUndoDir = expand("$HOME/.vim/.undo")
+    if !isdirectory(myUndoDir)
+        silent! call mkdir(myUndoDir, "p")
+    endif
     let &undodir=myUndoDir
-    let &backupdir=myBackupDir
-    let &directory=mySwapDir
-    set backup
     set undofile
 endif
 
+"backup
+if has('writebackup')
+    let myBackupDir = expand("$HOME/.vim/.backup")
+    if !isdirectory(myBackupDir)
+        silent! call mkdir(myBackupDir, "p")
+    endif
+    let &backupdir=myBackupDir
+    set backup
+endif
+
 "leader key
 let mapleader=' '
 
@@ -282,7 +299,7 @@ endfunction
 
 "syntax/filetype
 "---------------
-syntax enable
+syntax on
 filetype plugin indent on
 runtime macros/matchit.vim
 
@@ -318,7 +335,9 @@ if has("autocmd")
         autocmd!
         autocmd BufNewFile,BufRead *bash* set syntax=sh
         autocmd FileType python xnoremap <leader>r <esc>:'<,'>:w !python3<CR>
-        autocmd FileType go set noexpandtab
+        autocmd FileType go set noexpandtab |
+                    \ let g:go_auto_type_info = 1 |
+                    \ let g:go_imports_autosave = 1
         autocmd FileType html :syntax sync fromstart
         autocmd FileType html,javascript,css,json,yaml,sh
                     \ setlocal ts=2 sts=2 sw=2 expandtab