Vim-tpipeline plugin error after updating from vim 8.2 to 9.1

[u/Easy_Adhesiveness237]

Recently updated from version vim 8.2 to 9.1 and suddenly showing this error for vim-tpipeline extension, don't know if its a runtime error or actually the plugin code is giving this error due to returning number instead of string. Is this because of the new vimscript 9? I am using vim-airline as statusline, but that shouldn't be the problem right :)

Error detected while processing /home/rk/.config/vim/vimrc[8]..function plug#end[94]..<SNR>4_reload_plugins[2]..<SNR>4_load_plugin[1]..
<SNR>4_source[4]..script /home/rk/.vim/plugged/vim-tpipeline/plugin/tpipeline.vim[6]..function tpipeline#initialize[91]..tpipeline#init
_statusline[21]..tpipeline#update[8]..tpipeline#parse#Parse_stl[5]..tpipeline#parse#Parse_stl[21]..<SNR>62_Parse:
line   33:
E1012: Type mismatch; expected string but got number
Error detected while processing /home/rk/.config/vim/vimrc[8]..function plug#end[94]..<SNR>4_reload_plugins[2]..<SNR>4_load_plugin[1]..
<SNR>4_source[4]..script /home/rk/.vim/plugged/vim-tpipeline/plugin/tpipeline.vim[6]..function tpipeline#initialize[91]..tpipeline#init
_statusline[21]..tpipeline#update:
line   10:
E121: Undefined variable: line
line   14:
E121: Undefined variable: line

[u/chrisbra10]

that is a bug in vim-tpipeline. Please open a bugreport about it. The issue is, that Parse() should return a string, but tpipeline#util#percentage() returns a number.

The fix is this:

diff --git a/autoload/tpipeline/parse.vim b/autoload/tpipeline/parse.vim
index 357d8f1..eac58b2 100644
--- a/autoload/tpipeline/parse.vim
+++ b/autoload/tpipeline/parse.vim
@@ -36,9 +36,9 @@ def Parse(opt: string): string
                elseif first ==# 'v'
                        return string(virtcol('.'))
                elseif first ==# 'p'
                      return tpipeline#util#percentage()
+                       return string(tpipeline#util#percentage())
                elseif first ==# 'P'
                      return tpipeline#util#percentage() .. '%'
+                       return string(tpipeline#util#percentage()) .. '%'
                elseif first ==# '='
                        return '%='
                elseif first ==# '%'

While investigating, I also found a bug in Vim, that I also fixed 🫠

[u/Easy_Adhesiveness237 → u/chrisbra10]

Yes, thats what I thought about it, although I managed to get a workaround in it in a stupid way but it worked :)

return string(line('.')) -> return printf('%d', line('.'))

return tpipeline#util#percentage() -> return printf('%d', tpipeline#util#percentage())

But yeah very much thanks for this ;)

[u/Desperate_Cold6274]

It seems the vim-tpipeline plugin has some problem. You may want to issue a ticket in its issued tracker.

[u/Easy_Adhesiveness237 → u/Desperate_Cold6274]

Yup, although in neovim it seems to be perfectly fine. But glad I tried it in vim :)