Show buffer name when there are dup buf

autoload/SpaceVim/api/vim/statusline.vim

@@ -1,7 +1,7 @@
 let s:self = {}
 
 
-function! s:self.build(left_sections, right_sections, lsep, rsep, hi_a, hi_b, hi_c, hi_z) abort
+function! s:self.build(left_sections, right_sections, lsep, rsep, fname, hi_a, hi_b, hi_c, hi_z) abort
     let l = '%#' . a:hi_a . '#' . a:left_sections[0]
     let l .= '%#' . a:hi_a . '_' . a:hi_b . '#' . a:lsep
     let flag = 1
@@ -24,9 +24,9 @@ function! s:self.build(left_sections, right_sections, lsep, rsep, hi_a, hi_b, hi
         endif
     endif
     if flag == 1
-        let l .= '%#' . a:hi_c . '_' . a:hi_z . '#' . a:lsep . '%='
+        let l .= '%#' . a:hi_c . '_' . a:hi_z . '#' . a:lsep . a:fname . '%='
     else
-        let l .= '%#' . a:hi_b . '_' . a:hi_z . '#' . a:lsep . '%='
+        let l .= '%#' . a:hi_b . '_' . a:hi_z . '#' . a:lsep . a:fname . '%='
     endif
     let l .= '%#' . a:hi_b . '_' . a:hi_z . '#' . a:rsep
     let flag = 1

autoload/SpaceVim/layers/core/statusline.vim

@@ -86,6 +86,15 @@ function! s:check_mode() abort
   endif
 endfunction
 
+" only when there are more than two buffers have same name.
+function! s:buffer_name() abort
+  if get(b:, '_spacevim_statusline_showbfname', 0) == 1
+    return  ' ' . bufname('%')
+  else
+    return ''
+  endif
+endfunction
+
 function! s:search_status() abort
   let ct = 0
   let tt = 0
@@ -285,7 +294,8 @@ function! s:active() abort
   if index(s:loaded_sections, 'whitespace') != -1
     call add(rsec, s:whitespace())
   endif
-  return s:STATUSLINE.build(lsec, rsec, s:lsep, s:rsep,
+  let fname = s:buffer_name()
+  return s:STATUSLINE.build(lsec, rsec, s:lsep, s:rsep, fname,
         \ 'SpaceVim_statusline_a', 'SpaceVim_statusline_b', 'SpaceVim_statusline_c', 'SpaceVim_statusline_z')
 endfunction
 
@@ -386,7 +396,7 @@ function! SpaceVim#layers#core#statusline#config() abort
         \ 'toggle the statuline itself', 1)
   function! TagbarStatusline(...) abort
     let name = (strwidth(a:3) > (g:spacevim_sidebar_width - 15)) ? a:3[:g:spacevim_sidebar_width - 20] . '..' : a:3
-    return s:STATUSLINE.build([s:winnr(),' Tagbar ', ' ' . name . ' '], [], s:lsep, s:rsep,
+    return s:STATUSLINE.build([s:winnr(),' Tagbar ', ' ' . name . ' '], [], s:lsep, s:rsep, '',
           \ 'SpaceVim_statusline_ia', 'SpaceVim_statusline_b', 'SpaceVim_statusline_c', 'SpaceVim_statusline_z')
   endfunction
   let g:tagbar_status_func = 'TagbarStatusline'
@@ -415,7 +425,7 @@ endfunction
 "                the marked filenames.
 function! SpaceVim#layers#core#statusline#ctrlp(focus, byfname, regex, prev, item, next, marked) abort
   return s:STATUSLINE.build([' Ctrlp ', ' ' . a:prev . ' ', ' ' . a:item . ' ', ' ' . a:next . ' '],
-        \ [' ' . a:focus . ' ', ' ' . a:byfname . ' ', ' ' . getcwd() . ' '], s:lsep, s:rsep,
+        \ [' ' . a:focus . ' ', ' ' . a:byfname . ' ', ' ' . getcwd() . ' '], s:lsep, s:rsep, '',
         \ 'SpaceVim_statusline_a_bold', 'SpaceVim_statusline_b', 'SpaceVim_statusline_c', 'SpaceVim_statusline_z')
 endfunction
 
@@ -423,7 +433,7 @@ endfunction
 "         the current directory is being scanned with a user_command.
 function! SpaceVim#layers#core#statusline#ctrlp_status(str) abort
   return s:STATUSLINE.build([' Ctrlp ', ' ' . a:str . ' '],
-        \ [' ' . getcwd() . ' '], s:lsep, s:rsep,
+        \ [' ' . getcwd() . ' '], s:lsep, s:rsep, '',
         \ 'SpaceVim_statusline_a', 'SpaceVim_statusline_b', 'SpaceVim_statusline_c', 'SpaceVim_statusline_z')
 endfunction
 

autoload/SpaceVim/layers/core/tabline.vim

@@ -58,9 +58,20 @@ function! s:tabname(id) abort
     endif
 endfunction
 
+function! s:need_show_bfname(stack, nr) abort
+    let dupbufs = filter(a:stack, "fnamemodify(bufname(v:val), ':t') ==# fnamemodify(bufname(a:nr), ':t')")
+    if len(dupbufs) >= 2
+        for i in dupbufs
+            call setbufvar(i, '_spacevim_statusline_showbfname', 1)
+        endfor
+    endif
+endfunction
+
 function! SpaceVim#layers#core#tabline#get() abort
     let nr = tabpagenr('$')
     let t = ''
+    " the stack should be the bufnr stack of tabline
+    let stack = []
     if nr > 1
         let ct = tabpagenr()
         if ct == 1
@@ -78,6 +89,8 @@ function! SpaceVim#layers#core#tabline#get() abort
             if empty(name)
                 let name = 'No Name'
             endif
+            call add(stack, buflist[winnr - 1])
+            call s:need_show_bfname(stack, buflist[winnr - 1])
             if g:spacevim_buffer_index_type == 3
                 let id = s:messletters.index_num(i)
             elseif g:spacevim_buffer_index_type == 4
@@ -123,6 +136,8 @@ function! SpaceVim#layers#core#tabline#get() abort
             if empty(name)
                 let name = 'No Name'
             endif
+            call add(stack, i)
+            call s:need_show_bfname(stack, i)
             if g:spacevim_buffer_index_type == 3
                 let id = s:messletters.index_num(index(s:buffers, i) + 1)
             elseif g:spacevim_buffer_index_type == 4