fix(pack): GIT_DIR/GIT_WORK_TREE env vars may interfere #39279

Problem:
With GIT_DIR/GIT_WORK_TREE set, the LSP on the vim.pack.update()
confirmation buffer does not show the correct git log on hover.

Solution:
Temporarily remove the git vars from the environment.

1 files changed, 5 insertions, 1 deletions

diff --git a/runtime/lua/vim/pack/_lsp.lua b/runtime/lua/vim/pack/_lsp.lua
index 7eedf9dfe5..a3342e9a30 100644
--- a/runtime/lua/vim/pack/_lsp.lua
+++ b/runtime/lua/vim/pack/_lsp.lua
@@ -218,7 +218,11 @@ methods['textDocument/hover'] = function(params, callback)
     local res = { contents = { kind = vim.lsp.protocol.MarkupKind.Markdown, value = markdown } }
     callback(nil, res)
   end
-  vim.system(cmd, { cwd = path }, vim.schedule_wrap(on_exit))
+
+  -- temporarily clear GIT env vars
+  local env = vim.fn.environ() --- @type table<string,string>
+  env.GIT_DIR, env.GIT_WORK_TREE = nil, nil
+  vim.system(cmd, { cwd = path, env = env, clear_env = true }, vim.schedule_wrap(on_exit))
 end
 
 local dispatchers = {}