From da7767a1fb510b58ca998c2e5223fc5c11fd2389 Mon Sep 17 00:00:00 2001
From: Evie Litherland-Smith <evie.litherland-smith@ukaea.uk>
Date: Mon, 7 Nov 2022 16:04:36 +0000
Subject: [PATCH] Keep support for depracated format syntax in version <= 7

---
 lua/config_lsp.lua | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/lua/config_lsp.lua b/lua/config_lsp.lua
index 7ffd4bd1..b5b22263 100644
--- a/lua/config_lsp.lua
+++ b/lua/config_lsp.lua
@@ -29,9 +29,16 @@ local on_attach = function(client, bufnr)
     vim.keymap.set('n', '<leader>rn', vim.lsp.buf.rename, bufopts)
     vim.keymap.set('n', '<leader>ca', vim.lsp.buf.code_action, bufopts)
     vim.keymap.set('n', 'gr', vim.lsp.buf.references, bufopts)
-    vim.keymap.set('n', '<leader>i', function ()
-        vim.lsp.buf.format({timeout_ms=10000,async=false})  -- async=true is strange behavior
-    end, bufopts)
+    -- Keep support for deprecated syntax in vim <= 7
+    if vim.version().major <= 7 then
+        vim.keymap.set('n', '<leader>i', function ()
+            vim.lsp.buf.formatting_sync({timeout_ms=10000})
+        end, bufopts)
+    else
+        vim.keymap.set('n', '<leader>i', function ()
+            vim.lsp.buf.format({timeout_ms=10000,async=false})
+        end, bufopts)
+    end
     -- Enable aerial support
     require("aerial").on_attach(client, bufnr)
 end