From 2250673c9e458438ae3df6c98bbf0423e81891d3 Mon Sep 17 00:00:00 2001
From: Ian Jackson <ijackson@chiark.greenend.org.uk>
Date: Sat, 11 Aug 2018 12:22:54 +0100
Subject: [PATCH] git-debrebase: keycommits: Break out $found_anchor

We are going to want to reuse this.

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>
---
 git-debrebase | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/git-debrebase b/git-debrebase
index 3d8d6f33..06cdc769 100755
--- a/git-debrebase
+++ b/git-debrebase
@@ -846,6 +846,13 @@ sub keycommits ($;$$$$) {
 	return unless $cb;
 	$cb->("unclean-$tagsfx", $why, $cl, $mainwhy);
     };
+    my $found_anchor = sub {
+	($anchor) = @_;
+	$breakwater //= $clogonly;
+	$breakwater //= $head;
+	no warnings qw(exiting);
+	last;
+    };
     for (;;) {
 	$cl = classify $head;
 	my $ty = $cl->{Type};
@@ -859,10 +866,7 @@ sub keycommits ($;$$$$) {
 	} elsif ($ty eq 'Anchor' or
 		 $ty eq 'TreatAsAnchor' or
 		 $ty eq 'BreakwaterStart') {
-	    $anchor = $head;
-	    $breakwater //= $clogonly;
-	    $breakwater //= $head;
-	    last;
+	    $found_anchor->($head);
 	} elsif ($ty eq 'Upstream') {
 	    $x->($unclean, 'ordering',
  "packaging change ($breakwater) follows upstream change"," (eg $head)")
-- 
2.30.2