fix: check cmd type equals function (#2142)

* fix: check cmd type equals function

* fix: set meg in cmd field when is function

* fix: format with stylua

* fix: remove unused variable

* fix: improve cmd check

* fix: check executable in a table

* fix: improve

* fix: use underline instead of unused param

1 files changed, 16 insertions, 7 deletions

diff --git a/lua/lspconfig/ui/lspinfo.lua b/lua/lspconfig/ui/lspinfo.lua
index 2ece965c..611d8006 100644
--- a/lua/lspconfig/ui/lspinfo.lua
+++ b/lua/lspconfig/ui/lspinfo.lua
@@ -36,17 +36,26 @@ local function remove_newlines(cmd)
   return cmd
 end
 
+local cmd_type = {
+  ['function'] = function(_)
+    return '<function>', 'NA'
+  end,
+  ['table'] = function(config)
+    local cmd = remove_newlines(config.cmd)
+    if vim.fn.executable(config.cmd[1]) == 1 then
+      return cmd, 'true'
+    end
+    return cmd, error_messages.cmd_not_found
+  end,
+}
+
 local function make_config_info(config, bufnr)
   local config_info = {}
   config_info.name = config.name
   config_info.helptags = {}
+
   if config.cmd then
-    config_info.cmd = remove_newlines(config.cmd)
-    if vim.fn.executable(config.cmd[1]) == 1 then
-      config_info.cmd_is_executable = 'true'
-    else
-      config_info.cmd_is_executable = error_messages.cmd_not_found
-    end
+    config_info.cmd, config_info.cmd_is_executable = cmd_type[type(config.cmd)](config)
   else
     config_info.cmd = 'cmd not defined'
     config_info.cmd_is_executable = 'NA'
@@ -104,7 +113,7 @@ end
 local function make_client_info(client)
   local client_info = {}
 
-  client_info.cmd = remove_newlines(client.config.cmd)
+  client_info.cmd = cmd_type[type(client.config.cmd)](client.config)
   if client.workspaceFolders then
     client_info.root_dir = client.workspaceFolders[1].name
   else