From eb218a6f5fc16aadeee0736f0abc3771ad8b5542 Mon Sep 17 00:00:00 2001
From: "Kirill A. Korinsky" <kirill@korins.ky>
Date: Mon, 7 Feb 2022 01:37:13 +0100
Subject: [PATCH] `libgit2-sys`: use `src` instead `.git` as vendored indicator

When someone vendored `libgit2-sys` he may exclude `.git` folder.

When such things happened an attempt to build it may lead to error like:
`fatal: not a git repository (or any of the parent directories): .git`.

The only way to fix it is using system's `libgit2` which may lead to
`invalid version 0 on git_proxy_options; class=Invalid (3)` at some
cases.

Backported as: https://github.com/rust-lang/git2-rs/pull/801
---
 vendor/libgit2-sys/build.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/vendor/libgit2-sys/build.rs b/vendor/libgit2-sys/build.rs
index 07031cc928..3c16a272a6 100644
--- a/vendor/libgit2-sys/build.rs
+++ b/vendor/libgit2-sys/build.rs
@@ -22,7 +22,7 @@ fn main() {
         }
     }
 
-    if !Path::new("libgit2/.git").exists() {
+    if !Path::new("libgit2/src").exists() {
         let _ = Command::new("git")
             .args(&["submodule", "update", "--init"])
             .status();