From eb9135dded650fcc0c87417fc7b44dbb6995f8f2 Mon Sep 17 00:00:00 2001
From: Ward Wouts <ward@wouts.nl>
Date: Thu, 30 Aug 2001 08:36:08 +0000
Subject: [PATCH] ook maar es in cvs kwakken. kan ik um een keer fatsoenlijk
 maken...

---
 list_same/list_same | 69 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100755 list_same/list_same

diff --git a/list_same/list_same b/list_same/list_same
new file mode 100755
index 0000000..8aafbab
--- /dev/null
+++ b/list_same/list_same
@@ -0,0 +1,69 @@
+#!/usr/bin/perl -w
+
+# Generates a list of files in cur. dir which are actually the same
+# Compares size and MD5 checksum
+# Handy for cleaning up pictures like this:
+# list_same|cut -f 1 -d " "|xargs rm
+
+# This still sucks big time!
+# Can it handle directories at all?
+# Why does it bother with calculating md5 checksums of everything,
+# instead of just the files that have the same size?
+
+# Changelog:
+# 2001-08-29:
+#	use MD5; instead of a shell call to md5
+#	some cleaning of code
+
+use MD5;
+
+opendir(DIR, ".") or die "can't open . $!";
+while (defined($file = readdir(DIR))) {
+	&get_finfo;
+}
+closedir(DIR);
+
+$old_md5="";
+$old_size="";
+$old_name="";
+
+foreach $line (sort(@file_lijstje)) {
+#  print $line;
+	$line .= "\n";
+	$line =~ /(.*?)\s(.*?)\s(.*)/;
+	$md5 = $1; $size = $2; $name = $3;
+	if (($old_md5 eq $md5) && ($old_size eq $size)) {
+		print "$old_name $name\n";
+	} else {
+		$old_md5=$md5;
+		$old_size=$size;
+		$old_name=$name;
+	}
+}
+
+#################################
+# dain bread functions
+
+sub get_finfo() {
+	my ($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size, $atime,$mtime,$ctime,$blksize,$blocks);
+	my $line;
+	if (($file ne ".")&&($file ne "..")) {
+		($dev,$ino,$mode,$nlink,$uid,$gid,$rdev,$size,
+		$atime,$mtime,$ctime,$blksize,$blocks) = stat $file;
+		$line = &calc_md5($file);
+		push @file_lijstje, "$line $size $file";
+	}
+}
+
+sub calc_md5($file) {
+	my ($file, $digest);
+	$file = shift;
+	$md5 = new MD5;
+	open FILE, "<$file" or die "couldn't open file: $!\n";
+	seek(FILE, 0, 0);
+	$md5->reset;
+	$md5->addfile(FILE);
+	$digest = $md5->hexdigest;
+	close(FILE);
+	return $digest;
+}