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#!/usr/bin/perl -w
#
# cmpVERSION - compare two Perl source trees for modules
# that have identical version numbers but different contents.
#
# with -d option, output the diffs too
# with -x option, exclude dual-life modules (after all, there are tools
# like core-cpan-diff that can already deal with them)
# With this option, one of the directories must be '.'.
#
# Original by slaven@rezic.de, modified by jhi.
#
use strict;
use ExtUtils::MakeMaker;
use File::Compare;
use File::Find;
use File::Spec::Functions qw(rel2abs abs2rel catfile catdir curdir);
use Getopt::Std;
use lib 'Porting';
use Maintainers;
sub usage {
die <<'EOF';
usage: $0 [ -d -x ] source_dir1 source_dir2
EOF
}
my %opts;
getopts('dx', \%opts) or usage;
@ARGV == 2 or usage;
for (@ARGV[0, 1]) {
die "$0: '$_' does not look like Perl directory\n"
unless -f catfile($_, "perl.h") && -d catdir($_, "Porting");
}
my %dual_files;
if ($opts{x}) {
die "With -x, one of the directories must be '.'\n"
unless $ARGV[0] eq '.' or $ARGV[1] eq '.';
for my $m (grep $Maintainers::Modules{$_}{CPAN},
keys %Maintainers::Modules)
{
$dual_files{"./$_"} = 1 for Maintainers::get_module_files($m);
}
}
my $dir2 = rel2abs($ARGV[1]);
chdir $ARGV[0] or die "$0: chdir '$ARGV[0]' failed: $!\n";
# Files to skip from the check for one reason or another,
# usually because they pull in their version from some other file.
my %skip;
@skip{
'./lib/Carp/Heavy.pm',
'./lib/Config.pm', # no version number but contents will vary
'./lib/Exporter/Heavy.pm',
'./win32/FindExt.pm',
} = ();
my $skip_dirs = qr|^\./t/lib|;
my @wanted;
my @diffs;
find(
sub { /\.pm$/ &&
$File::Find::dir !~ $skip_dirs &&
! exists $skip{$File::Find::name} &&
! exists $dual_files{$File::Find::name}
&&
do { my $file2 =
catfile(catdir($dir2, $File::Find::dir), $_);
(my $xs_file1 = $_) =~ s/\.pm$/.xs/;
(my $xs_file2 = $file2) =~ s/\.pm$/.xs/;
my $eq1 = compare($_, $file2) == 0;
my $eq2 = 1;
if (-e $xs_file1 && -e $xs_file2) {
$eq2 = compare($xs_file1, $xs_file2) == 0;
}
return if $eq1 && $eq2;
my $version1 = eval {MM->parse_version($_)};
my $version2 = eval {MM->parse_version($file2)};
return unless
defined $version1 &&
defined $version2 &&
$version1 eq $version2;
push @wanted, $File::Find::name;
push @diffs, [ "$File::Find::dir/$_", $file2 ] unless $eq1;
push @diffs, [ "$File::Find::dir/$xs_file1", $xs_file2 ]
unless $eq2;
} }, curdir);
for (sort @wanted) {
print "$_\n";
}
exit unless $opts{d};
for (sort { $a->[0] cmp $b->[0] } @diffs) {
print "\n";
system "diff -du '$_->[0]' '$_->[1]'";
}
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