Tabline showing wrongnames

[Deshdeepak1]

environment

• vim: nvim 0.5
• vim-airline: 0.11
• OS: arch linux
• Have you reproduced with a minimal vimrc: Yes
• What is your airline configuration:

set nocompatible
set runtimepath^=~/.local/share/nvim/plugged/vim-airline
set runtimepath^=~/.local/share/nvim/plugged/gruvbox
syntax on
colo gruvbox
filetype plugin indent on
let g:airline#extensions#tabline#enabled = 1

if you are using terminal:

• terminal: Konsole
• $TERM variable: xterm-256color
• color configuration (:set t_Co?):
  if you are using Neovim:
• does it happen in Vim: Don't know

actual behavior

See Tabline, Both 2nd and 3rd have same name, but actually have different files in them if I navigate.

expected behavior

After :AirlineToggle . We can see the last tab had starify.vim instead vim-which-key.vim
So Airline was creating the problem.

[chrisbra]

how to reproduce?

[Deshdeepak1]

I just noticed it works completely fine, but this only happens if I open startify.vim

1. Create mini.vim with my code.
2. Open startify.vim : vim -u ~/mini.vim ~/.config/nvim/plug_config/startify.vim . Write anything in it .
3. Open New tabs with different files.

[chrisbra]

is startify needed? Also, what do you mean with open new tabs with different files? Please be precise.

[Deshdeepak1]

is startify needed?
I don't think its needed, because I didn't use startify in mini.vim, but maybe a file with same path as mentioned above might be required.
Also, what do you mean with open new tabs with different files? Please be precise.
:tabnew ~/.bashrc
:tabnew ~/.tmux.conf
,etc

[chrisbra]

I cannot reproduce:

" make it work with tiny Vim
if 1
  set nocp bs=2
  filetype plugin indent on
  syn on
  set t_Co=256 bg=dark wildmenu
  packloadall
  let g:airline#extensions#tabline#enabled = 1
endif

That means, the tabs are exactly as they should. Please also show the output of :tabs

[katawful]

I also experience this, but cannot find a way to replicate it

[ChunYoLin]

also experience this, very hard to reproduce

[yuanshi1602]

this happens if call:NERDTreeToggle

[chrisbra]

please provide exact reproduction steps.

[teranex]

I see the same behaviour. When I use Vimwiki with different tabs, they seem to show the correct titles, but when I then do :tab help vimwiki (for example) and switch back to a vimwiki buffer, then the tab with the help file shows the filename from a vimwiki file as the tab title

Example after opening the help file:

After switching back to the vimwiki file with gt

[UglyNoob]

I don't know how to reproduce wrongnames of tabs of actual files, but the problem of wrongnames of nvim-builtin terminals is easy to reproduce. Create a terminal tab and switch to anothor tab, the label will change to be the same as current tab's, which is not the expected behavior.

[KSR-Yasuda]

When I use Vimwiki with different tabs, they seem to show the correct titles, but when I then do :tab help vimwiki (for example) and switch back to a vimwiki buffer, then the tab with the help file shows the filename from a vimwiki file as the tab title

Perhaps some plugin's window is likely to make this issue
(I don't see actually WHAT, though...).

Opening netrw window is the same:

1. Open any directory by netrw (tab # 1)
   • :e ./
2. Open another tab (tab # 2) and set some name
   • :tabnew
   • :f a
3. Then you find the netrw tab # 1 is labeled as the name of tab # 2
   • Looks active tab name is used.
     If open another tab # 3 and move to it, the tab # 1 is labeled as the tab # 3's name.

[KSR-Yasuda]

Changing below fixes to show correct netrw tab name.

Probably windows not listed in all_buffers makes the problem.

--- a/autoload/airline/extensions/tabline.vim
+++ b/autoload/airline/extensions/tabline.vim
@@ -215,7 +215,7 @@ if !exists(":def") || !airline#util#has_vim9_script()
       let buflist = tabpagebuflist(a:n)
       let winnr = tabpagewinnr(a:n)
       let all_buffers = airline#extensions#tabline#buflist#list()
-      let curbuf = filter(buflist, 'index(all_buffers, v:val) != -1')
+      let curbuf = buflist
       if len(curbuf) ==  0
         call add(curbuf, tabpagebuflist()[0])
       endif

[KSR-Yasuda]

Or, changing as below:

--- a/autoload/airline/extensions/tabline/buflist.vim
+++ b/autoload/airline/extensions/tabline/buflist.vim
@@ -52,7 +52,7 @@ function! airline#extensions#tabline#buflist#list()
   " Basically branch 535 already does it, but since it relies on
   " BufAdd autocommand, I'd like to avoid this if possible.
   for nr in list
-    if buflisted(nr)
+    if bufloaded(nr)
       " Do not add to the bufferlist, if either
       " 1) bufnr is exclude_buffers list
       " 2) buffername matches one of exclude_paths patterns

So, nobuflisted windows are dropped here, and considered non-existent buffers to make this problem.

[KSR-Yasuda]

#2169 is the same?

[KSR-Yasuda]

Also, this looks a bug:

--- a/autoload/airline/extensions/tabline.vim
+++ b/autoload/airline/extensions/tabline.vim
@@ -217,7 +217,7 @@ if !exists(":def") || !airline#util#has_vim9_script()
       let all_buffers = airline#extensions#tabline#buflist#list()
       let curbuf = filter(buflist, 'index(all_buffers, v:val) != -1')
       if len(curbuf) ==  0
-        call add(curbuf, tabpagebuflist()[0])
+        call add(curbuf, tabpagebuflist(a:n)[0])
       endif
       return airline#extensions#tabline#get_buffer_name(curbuf[0], curbuf)
     endif

[KSR-Yasuda]

Anyway raised a pull request, though, went bad with the tests...

Can anyone fix it?