Use nvim-notify for showing messages

core/autocommands.vim

@@ -32,7 +32,8 @@ augroup END
 " https://github.com/vim/vim/issues/4379
 augroup non_utf8_file_warn
   autocmd!
-  autocmd BufRead * if &fileencoding != 'utf-8' | unsilent echomsg 'File not in UTF-8 format!' | endif
+  " we can not `lua vim.notify()`: it will error out E5107 parsing lua.
+  autocmd BufRead * if &fileencoding != 'utf-8' | call v:lua.vim.notify('File not in UTF-8 format!', 'warn', {'title': 'nvim-config'}) | endif
 augroup END
 
 " Automatically reload the file if it is changed outside of Nvim, see
@@ -42,7 +43,7 @@ augroup END
 " https://vi.stackexchange.com/a/20397/15292.
 augroup auto_read
   autocmd!
-  autocmd FileChangedShellPost * call utils#Log("File changed on disk. Buffer reloaded!", 'warning')
+  autocmd FileChangedShellPost * call v:lua.vim.notify("File changed on disk. Buffer reloaded!", 'warn', {'title': 'nvim-config'})
   autocmd FocusGained,CursorHold * if getcmdwintype() == '' | checktime | endif
 augroup END
 

core/mappings.vim

@@ -102,7 +102,7 @@ inoremap <expr> <s-tab> pumvisible() ? "\<c-p>" : "\<s-tab>"
 " Edit and reload init.vim quickly
 nnoremap <silent> <leader>ev :<C-U>tabnew $MYVIMRC <bar> tcd %:h<cr>
 nnoremap <silent> <leader>sv :<C-U>silent update $MYVIMRC <bar> source $MYVIMRC <bar>
-      \ echomsg "Nvim config successfully reloaded!"<cr>
+      \ call v:lua.vim.notify("Nvim config successfully reloaded!", 'info', {'title': 'nvim-config'})<cr>
 
 " Reselect the text that has just been pasted, see also https://stackoverflow.com/a/4317090/6064933.
 nnoremap <expr> <leader>v printf('`[%s`]', getregtype()[0])

core/ui.vim

@@ -64,7 +64,7 @@ let s:colorscheme_func = printf('s:my_theme_dict.%s()', s:theme)
 if has_key(s:my_theme_dict, s:theme)
   execute 'call ' . s:colorscheme_func
 else
-  call utils#Log('Invalid colorscheme function: ' . s:colorscheme_func, 'error')
+  call v:lua.vim.notify('Invalid colorscheme function: ' . s:colorscheme_func, 'error', {'title': 'nvim-config'})
 endif
 "}}
 "}