From 4641b8b4f78a82411c8952aed73139483ead9e37 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Thu, 22 Sep 2016 01:10:31 +0100
Subject: dgit: Some extra error reports for wrong split brain mode

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---
 dgit | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'dgit')

diff --git a/dgit b/dgit
index 13c8add..77eae6b 100755
--- a/dgit
+++ b/dgit
@@ -3316,6 +3316,13 @@ sub quiltify_splitbrain ($$$$$$) {
 	}  
 	fail $msg;
     }
+    if ($quilt_mode =~ m/dpm/ &&
+	($diffbits->{H2A} & 01)) {
+	fail <<END;
+--quilt=$quilt_mode specified, implying patches-applied git tree
+ but git tree differs from result of applying debian/patches to upstream
+END
+    }
     if ($quilt_mode =~ m/gbp|unapplied/ &&
 	($diffbits->{O2A} & 01)) { # some patches
 	quiltify_splitbrain_needed();
@@ -3325,6 +3332,14 @@ sub quiltify_splitbrain ($$$$$$) {
 	runcmd @git, qw(update-ref refs/heads/dgit-view HEAD);
 	runcmd @git, qw(checkout -q dgit-view);
     }
+    if ($quilt_mode =~ m/gbp|dpm/ &&
+	($diffbits->{O2A} & 02)) {
+	fail <<END
+--quilt=$quilt_mode specified, implying that HEAD is for use with a
+ tool which does not create patches for changes to upstream
+ .gitignores: but, such patches exist in debian/patches.
+END
+    }
     if (($diffbits->{H2O} & 02) && # user has modified .gitignore
 	!($diffbits->{O2A} & 02)) { # patches do not change .gitignore
 	quiltify_splitbrain_needed();
-- 
cgit v1.2.3