1#!/usr/bin/perl -w
2
3#
4# cmpVERSION - compare two Perl source trees for modules
5# that have identical version numbers but different contents.
6#
7# Original by slaven@rezic.de, modified by jhi.
8#
9
10use strict;
11
12use ExtUtils::MakeMaker;
13use File::Compare;
14use File::Find;
15use File::Spec::Functions qw(rel2abs abs2rel catfile catdir curdir);
16
17for (@ARGV[0, 1]) {
18    die "$0: '$_' does not look like Perl directory\n"
19	unless -f catfile($_, "perl.h") && -d catdir($_, "Porting");
20}
21
22my $dir2 = rel2abs($ARGV[1]);
23chdir $ARGV[0] or die "$0: chdir '$ARGV[0]' failed: $!\n";
24
25# Files to skip from the check for one reason or another,
26# usually because they pull in their version from some other file.
27my %skip;
28@skip{'./lib/Exporter/Heavy.pm'} = ();
29
30my @wanted;
31find(
32     sub { /\.pm$/ &&
33	       ! exists $skip{$File::Find::name}
34	       &&
35	       do { my $file2 =
36			catfile(catdir($dir2, $File::Find::dir), $_);
37		    (my $xs_file1 = $_)     =~ s/\.pm$/.xs/;
38		    (my $xs_file2 = $file2) =~ s/\.pm$/.xs/;
39		    if (-e $xs_file1 && -e $xs_file2) {
40			return if compare($_, $file2) == 0 &&
41			          compare($xs_file1, $xs_file2) == 0;
42		    } else {
43			return if compare($_, $file2) == 0;
44		    }
45		    my $version1 = eval {MM->parse_version($_)};
46		    my $version2 = eval {MM->parse_version($file2)};
47		    push @wanted, $File::Find::name
48			if defined $version1 &&
49			   defined $version2 &&
50                           $version1 eq $version2
51		} }, curdir);
52print map { $_, "\n" } sort @wanted;
53
54