From 615451541643a07486e209f9f17edae9436b882c Mon Sep 17 00:00:00 2001
From: Brian Henderson <henderson.bj@gmail.com>
Date: Tue, 26 Jul 2016 07:51:07 -0700
Subject: [PATCH 3/3] diff-highlight: add support for --graph output.

---
 contrib/diff-highlight/diff-highlight | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/contrib/diff-highlight/diff-highlight b/contrib/diff-highlight/diff-highlight
index ffefc31..ec31356 100755
--- a/contrib/diff-highlight/diff-highlight
+++ b/contrib/diff-highlight/diff-highlight
@@ -20,6 +20,7 @@ my @NEW_HIGHLIGHT = (
 my $RESET = "\x1b[m";
 my $COLOR = qr/\x1b\[[0-9;]*m/;
 my $BORING = qr/$COLOR|\s/;
+my $GRAPH = qr/$COLOR?\|$COLOR?\s+/;
 
 my @removed;
 my @added;
@@ -32,12 +33,12 @@ $SIG{PIPE} = 'DEFAULT';
 while (<>) {
 	if (!$in_hunk) {
 		print;
-		$in_hunk = /^$COLOR*\@/;
+		$in_hunk = /^$GRAPH*$COLOR*\@/;
 	}
-	elsif (/^$COLOR*-/) {
+	elsif (/^$GRAPH*$COLOR*-/) {
 		push @removed, $_;
 	}
-	elsif (/^$COLOR*\+/) {
+	elsif (/^$GRAPH*$COLOR*\+/) {
 		push @added, $_;
 	}
 	else {
@@ -46,7 +47,7 @@ while (<>) {
 		@added = ();
 
 		print;
-		$in_hunk = /^$COLOR*[\@ ]/;
+		$in_hunk = /^$GRAPH*$COLOR*[\@ ]/;
 	}
 
 	# Most of the time there is enough output to keep things streaming,
@@ -211,8 +212,8 @@ sub is_pair_interesting {
 	my $suffix_a = join('', @$a[($sa+1)..$#$a]);
 	my $suffix_b = join('', @$b[($sb+1)..$#$b]);
 
-	return $prefix_a !~ /^$COLOR*-$BORING*$/ ||
-	       $prefix_b !~ /^$COLOR*\+$BORING*$/ ||
+	return $prefix_a !~ /^$GRAPH*$COLOR*-$BORING*$/ ||
+	       $prefix_b !~ /^$GRAPH*$COLOR*\+$BORING*$/ ||
 	       $suffix_a !~ /^$BORING*$/ ||
 	       $suffix_b !~ /^$BORING*$/;
 }
-- 
2.9.0