From c1ba46b6d32c2e4310e33f739bb43db113dc2d40 Mon Sep 17 00:00:00 2001
From: Lewis Russell <lewis6991@gmail.com>
Date: Wed, 3 Apr 2024 12:06:19 +0100
Subject: [PATCH] fix(attach): allow attaching inside .git/

Only if GIT_DIR and GIT_WORK_TREE exist in the env

Fixes #923
---
 lua/gitsigns/attach.lua | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/lua/gitsigns/attach.lua b/lua/gitsigns/attach.lua
index d8e1c301..16d652e6 100644
--- a/lua/gitsigns/attach.lua
+++ b/lua/gitsigns/attach.lua
@@ -314,7 +314,11 @@ local attach_throttled = throttle_by_id(function(cbuf, ctx, aucmd)
     gitdir = repo.gitdir,
   })
 
-  if vim.startswith(file, repo.gitdir .. util.path_sep) then
+  if
+    vim.startswith(file, repo.gitdir .. util.path_sep)
+    and not vim.env.GIT_DIR
+    and not vim.env.GIT_WORK_TREE
+  then
     dprint('In non-standard git dir')
     return
   end