From bed5b0763857cf672e6f7d75e486cda3578cb92c Mon Sep 17 00:00:00 2001
From: Daniel Friesel <derf@finalrewind.org>
Date: Sun, 19 Dec 2010 10:40:29 +0100
Subject: Add hashl in-list (check if we know a file)

---
 bin/hashl | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/bin/hashl b/bin/hashl
index bd0eb6c..0724f9d 100755
--- a/bin/hashl
+++ b/bin/hashl
@@ -65,6 +65,16 @@ sub hash_file {
 	return sha1_hex($data);
 }
 
+sub is_in_list {
+	my ($file) = @_;
+	my $hash = hash_file($file);
+
+	if (grep { $_->{'hash'} eq $hash } values %{$db}) {
+		return 1;
+	}
+	return 0;
+}
+
 
 sub process_file {
 	my $file = $File::Find::name;
@@ -123,6 +133,19 @@ elsif ($action eq 'list') {
 		printf("%s %s\n", $file->{'hash'}, $name);
 	}
 }
+elsif ($action eq 'in-list') {
+	if ($ARGV[1]) {
+		exit (!is_in_list($ARGV[1]));
+	}
+	else {
+		while (my $line = <STDIN>) {
+			chomp $line;
+			if (!is_in_list($line)) {
+				say $line;
+			}
+		}
+	}
+}
 
 __END__
 
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