From bffa7a4d23addaedc64075b06c00f1cbb5dec667 Mon Sep 17 00:00:00 2001
From: Christian Brabandt <cb@256bit.org>
Date: Tue, 2 Feb 2021 10:07:51 +0100
Subject: [PATCH] nvimlsp: do not check for :LspInstallInfo

nvimlsp removed the :LspInstallInfo command. So instead check explicitly
for neovim for enabling the nvimlsp extension.

In the extension itself check that at least one LSP is attached to the
buffer before returning warning and error messages.

closes #2323
---
 autoload/airline/extensions.vim         | 2 +-
 autoload/airline/extensions/nvimlsp.vim | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/autoload/airline/extensions.vim b/autoload/airline/extensions.vim
index cb0cb902..eda34b81 100644
--- a/autoload/airline/extensions.vim
+++ b/autoload/airline/extensions.vim
@@ -338,7 +338,7 @@ function! airline#extensions#load()
   endif
 
   if (get(g:, 'airline#extensions#nvimlsp#enabled', 1)
-        \ && exists(':LspInstallInfo'))
+        \ && has("nvim"))
     call airline#extensions#nvimlsp#init(s:ext)
     call add(s:loaded_ext, 'nvimlsp')
   endif
diff --git a/autoload/airline/extensions/nvimlsp.vim b/autoload/airline/extensions/nvimlsp.vim
index 4d1c766c..a5521894 100644
--- a/autoload/airline/extensions/nvimlsp.vim
+++ b/autoload/airline/extensions/nvimlsp.vim
@@ -5,7 +5,7 @@
 scriptencoding utf-8
 
 if !(get(g:, 'airline#extensions#nvimlsp#enabled', 1)
-      \ && exists(':LspInstallInfo'))
+      \ && has("nvim"))
   finish
 endif
 
@@ -14,7 +14,7 @@ function! s:airline_nvimlsp_count(cnt, symbol) abort
 endfunction
 
 function! airline#extensions#nvimlsp#get(type) abort
-  if !exists(':LspInstallInfo')
+  if vim.lsp.buf_get_clients() == 0
     return ''
   endif