move basic init & autocmd back to plugin/

plugin/tagbar.vim

@@ -26,6 +26,101 @@ if &cp || exists('g:loaded_tagbar')
     finish
 endif
 
+" Basic init {{{1
+
+if v:version < 700
+    echomsg 'Tagbar: Vim version is too old, Tagbar requires at least 7.0'
+    finish
+endif
+
+if !exists('g:tagbar_ctags_bin')
+    if executable('ctags-exuberant')
+        let g:tagbar_ctags_bin = 'ctags-exuberant'
+    elseif executable('exuberant-ctags')
+        let g:tagbar_ctags_bin = 'exuberant-ctags'
+    elseif executable('exctags')
+        let g:tagbar_ctags_bin = 'exctags'
+    elseif executable('ctags')
+        let g:tagbar_ctags_bin = 'ctags'
+    elseif executable('ctags.exe')
+        let g:tagbar_ctags_bin = 'ctags.exe'
+    elseif executable('tags')
+        let g:tagbar_ctags_bin = 'tags'
+    else
+        echomsg 'Tagbar: Exuberant ctags not found, skipping plugin'
+        finish
+    endif
+else
+    let g:tagbar_ctags_bin = expand(g:tagbar_ctags_bin)
+    if !executable(g:tagbar_ctags_bin)
+        echomsg 'Tagbar: Exuberant ctags not found in specified place,'
+              \ 'skipping plugin'
+        finish
+    endif
+endif
+
+redir => s:ftype_out
+silent filetype
+redir END
+if s:ftype_out !~# 'detection:ON'
+    echomsg 'Tagbar: Filetype detection is turned off, skipping plugin'
+    unlet s:ftype_out
+    finish
+endif
+unlet s:ftype_out
+
+let g:loaded_tagbar = 1
+
+if !exists('g:tagbar_left')
+    let g:tagbar_left = 0
+endif
+
+if !exists('g:tagbar_width')
+    let g:tagbar_width = 40
+endif
+
+if !exists('g:tagbar_autoclose')
+    let g:tagbar_autoclose = 0
+endif
+
+if !exists('g:tagbar_autofocus')
+    let g:tagbar_autofocus = 0
+endif
+
+if !exists('g:tagbar_sort')
+    let g:tagbar_sort = 1
+endif
+
+if !exists('g:tagbar_compact')
+    let g:tagbar_compact = 0
+endif
+
+if !exists('g:tagbar_expand')
+    let g:tagbar_expand = 0
+endif
+
+if !exists('g:tagbar_singleclick')
+    let g:tagbar_singleclick = 0
+endif
+
+if !exists('g:tagbar_foldlevel')
+    let g:tagbar_foldlevel = 99
+endif
+
+if !exists('g:tagbar_usearrows')
+    let g:tagbar_usearrows = 0
+endif
+
+if !exists('g:tagbar_autoshowtag')
+    let g:tagbar_autoshowtag = 0
+endif
+
+if !exists('g:tagbar_systemenc')
+    let g:tagbar_systemenc = &encoding
+endif
+
+autocmd SessionLoadPost * nested call tagbar#RestoreSession()
+
 " Commands {{{1
 command! -nargs=0 TagbarToggle        call tagbar#ToggleWindow()
 command! -nargs=0 TagbarOpen          call tagbar#OpenWindow(0)