From bd2d128ff40122f786010a9dd5a184cd2bc2de89 Mon Sep 17 00:00:00 2001
From: Mischa POSLAWSKY <perl@shiar.org>
Date: Fri, 4 Feb 2011 04:25:54 +0100
Subject: [PATCH] count option

---
 git-grep-footer | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

diff --git a/git-grep-footer b/git-grep-footer
index ff279a6..8ac3a03 100755
--- a/git-grep-footer
+++ b/git-grep-footer
@@ -9,6 +9,7 @@ use Getopt::Long qw(:config bundling);
 
 GetOptions(\my %opt,
 	'debug!',
+	'count|c!',
 	'simplify|s:s',
 	'ignore-case|i!',
 	'min|min-count|unique|u:i',
@@ -23,6 +24,8 @@ local $/ = "\0";
 
 my $HEADERMATCH = qr/ [a-z]+ (?: (?:-\w+)+ | \ by ) /ix;
 
+my (%headercount, @headercache);
+
 while (readline) {
 	s/(.+)\n//m;
 	my $hash = $1;
@@ -105,19 +108,28 @@ while (readline) {
 		}
 
 		for (@headers) {
+			my $line = $_->[2] // join(': ', @$_);
 			if (defined $opt{min} or $opt{max}) {
-				state $seen;
-				my $count = $seen->{ $_->[0] }->{ $_->[1] // '' }++;
-				next if $count >= ($opt{min} // 0) + ($opt{max} || 1);
-				next if $count < ($opt{min} // 0);
+				my $counter = \$headercount{ $_->[0] }->{ $_->[1] // '' };
+				my $excess = $$counter++ - ($opt{min} // 0);
+				next if $excess >= ($opt{max} || 1);
+				next if $excess <  0;
+				if ($opt{count}) {
+					push @headercache, [ $line, $excess ? \undef : $counter ];
+					next;
+				}
 			}
-			say $_->[2] // join(': ', @$_);
+			say $line;
 		}
 
 		last BLOCK;
 	}
 }
 
+for (@headercache) {
+	say ${$_->[1]} // '', "\t", $_->[0];
+}
+
 __END__
 
 =head1 NAME
-- 
2.30.0