From 67a573dae86ae43d30395864351b81ec03c8bef8 Mon Sep 17 00:00:00 2001
From: Erik Arvstedt <erik.arvstedt@gmail.com>
Date: Sun, 28 Aug 2022 17:52:47 +0200
Subject: [PATCH] create-git-repo.sh: fix amend error if there's no branch
 checked out

In this case, `git commit --amend` fails.

The state of a .git repo existing without a branch being checked out
can be reached through the following sequence of events (which I just
seem to have triggered):
1. The script calls `git init`
2. The user interrupts the script before `git commit` is finished
---
 test/lib/create-git-repo.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/lib/create-git-repo.sh b/test/lib/create-git-repo.sh
index 110dfdf..3549904 100644
--- a/test/lib/create-git-repo.sh
+++ b/test/lib/create-git-repo.sh
@@ -4,7 +4,7 @@
   cd "$scriptDir/.."
   amend=--amend
 
-  if [[ ! -e .git ]]; then
+  if [[ ! -e .git ]] || ! git rev-parse HEAD 2>/dev/null; then
     git init
     amend=
   fi