From 20516346c4c61b2bda16d1d27fa65aecebf9fad7 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Thu, 5 Jan 2017 02:04:12 +0000
Subject: [PATCH] badcommit-fixup: only detach bare

---
 badcommit-fixup | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/badcommit-fixup b/badcommit-fixup
index 1fa95d5..b8cb88a 100755
--- a/badcommit-fixup
+++ b/badcommit-fixup
@@ -132,8 +132,13 @@ foreach my $rline (split /\n/, $refs) {
 open U, "|git update-ref -m 'dgit bad commit fixup' --stdin" or die $!;
 
 if ($real) {
-    print "detaching your HEAD\n" or die $!;
-    system 'git checkout --detach' and die "$! $?";
+    $!=0; $?=0;
+    my $bare = `git rev-parse --is-bare-repository`;
+    die "$? $!" if $?;
+    if ($bare eq 'false') {
+	print "detaching your HEAD\n" or die $!;
+	system 'git checkout --detach' and die "$! $?";
+    }
 }
 
 for my $up (@updates) {
-- 
2.30.2