Split brain: Start work on generating gitignore patch

Generate a patch header, for now.  Still not finished.

1 files changed, 14 insertions, 0 deletions

diff --git a/dgit b/dgit
index 73432bc..50c8dd0 100755
--- a/dgit
+++ b/dgit
@@ -2576,6 +2576,20 @@ sub quiltify_splitbrain ($$) {
 	!($diffbits->{O2A} & 02)) { # patches do not change .gitignore
 	quiltify_splitbrain_needed();
 	progress "creating patch to represent .gitignore changes";
+	my $gipatch = "debian/patches/auto-gitignore";
+	open GIPATCH, ">>", "$gipatch" or die "$gipatch: $!";
+	stat GIPATCH or die "$gipatch: $!";
+	fail "$gipatch already exists; but want to create it".
+	    " to record .gitignore changes" if (stat _)[7];
+	print GIPATCH <<END or die "$gipatch: $!";
+Subject: Update .gitignore from Debian packaging branch
+
+The Debian packaging git branch contains these updates to the upstream
+.gitignore file(s).  This patch is autogenerated, to provide these
+updates to users of the official Debian archive view of the package.
+
+---
+END
     die 'xxx gitignore';
 	
     }