From d371437104d5a7a4ec623a2e0be716063c7dde92 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Thu, 15 Feb 2018 18:49:17 +0000
Subject: [PATCH] Dgit.pm: When checking that the tree is clean, check the git
 index too.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---
 Debian/Dgit.pm   | 23 +++++++++++++++--------
 debian/changelog |  3 +++
 2 files changed, 18 insertions(+), 8 deletions(-)

diff --git a/Debian/Dgit.pm b/Debian/Dgit.pm
index 7da60f66..3657aa13 100644
--- a/Debian/Dgit.pm
+++ b/Debian/Dgit.pm
@@ -445,14 +445,21 @@ sub git_for_each_tag_referring ($$) {
 }
 
 sub git_check_unmodified () {
-    my @cmd = qw(git diff --quiet HEAD);
-    debugcmd "+",@cmd;
-    $!=0; $?=-1; system @cmd;
-    return if !$?;
-    if ($?==256) {
-	fail "working tree is dirty (does not match HEAD)";
-    } else {
-	failedcmd @cmd;
+    foreach my $cached (qw(0 1)) {
+	my @cmd = qw(git diff --quiet);
+	push @cmd, qw(--cached) if $cached;
+	push @cmd, qw(HEAD);
+	debugcmd "+",@cmd;
+	$!=0; $?=-1; system @cmd;
+	return if !$?;
+	if ($?==256) {
+	    fail
+		$cached
+		? "git index contains changes (does not match HEAD)"
+		: "working tree is dirty (does not match HEAD)";
+	} else {
+	    failedcmd @cmd;
+	}
     }
 }
 
diff --git a/debian/changelog b/debian/changelog
index e4134540..91dd7c49 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,5 +1,8 @@
 dgit (4.5~) unstable; urgency=medium
 
+  Bugfixes:
+  * When checking that the tree is clean, check the git index too.
+
   Minor fixes:
   * "confess" when we die due to a warning, rather than symply dieing.
 
-- 
2.30.2