#!/usr/bin/perl -w
#
-# cmpVERSION - compare two Perl source trees for modules
-# that have identical version numbers but different contents.
+# cmpVERSION - compare the current Perl source tree and a given tag
+# for modules that have identical version numbers but different contents.
#
-# Original by slaven@rezic.de, modified by jhi.
+# with -d option, output the diffs too
+# with -x option, exclude files from modules where blead is not upstream
#
+# (after all, there are tools like core-cpan-diff that can already deal with
+# them)
+#
+# Original by slaven@rezic.de, modified by jhi and matt.w.johnson@gmail.com.
+# Adaptation to produce TAP by Abigail, folded back into this file by Nicholas
use strict;
+use 5.006;
use ExtUtils::MakeMaker;
-use File::Compare;
-use File::Find;
-use File::Spec::Functions qw(rel2abs abs2rel catfile catdir curdir);
+use File::Spec::Functions qw(devnull);
+use Getopt::Long;
+
+my ($diffs, $exclude_upstream, $tag_to_compare, $tap);
+unless (GetOptions('diffs' => \$diffs,
+ 'exclude|x' => \$exclude_upstream,
+ 'tag=s' => \$tag_to_compare,
+ 'tap' => \$tap,
+ ) && @ARGV == 0) {
+ die "usage: $0 [ -d -x --tag TAG --tap]";
+}
+
+die "$0: This does not look like a Perl directory\n"
+ unless -f "perl.h" && -d "Porting";
+die "$0: 'This is a Perl directory but does not look like Git working directory\n"
+ unless (-d ".git" || (exists $ENV{GIT_DIR} && -d $ENV{GIT_DIR}));
+
+my $null = devnull();
+
+unless (defined $tag_to_compare) {
+ my $check = 'HEAD';
+ while(1) {
+ $check = `git describe --abbrev=0 $check 2>$null`;
+ chomp $check;
+ last unless $check =~ /-RC/;
+ $check .= '^';
+ }
+ $tag_to_compare = $check;
+ # Thanks to David Golden for this suggestion.
+
+}
+
+unless (length $tag_to_compare) {
+ die "$0: Git found, but no Git tags found\n"
+ unless $tap;
+ print "1..0 # SKIP: Git found, but no Git tags found\n";
+ exit 0;
+}
+
+my $tag_exists = `git --no-pager tag -l $tag_to_compare 2>$null`;
+chomp $tag_exists;
-for (@ARGV[0, 1]) {
- die "$0: '$_' does not look like Perl directory\n"
- unless -f catfile($_, "perl.h") && -d catdir($_, "Porting");
+unless ($tag_exists eq $tag_to_compare) {
+ die "$0: '$tag_to_compare' is not a known Git tag\n" unless $tap;
+ print "1..0 # SKIP: '$tag_to_compare' is not a known Git tag\n";
+ exit 0;
}
-my $dir2 = rel2abs($ARGV[1]);
-chdir $ARGV[0] or die "$0: chdir '$ARGV[0]' failed: $!\n";
+my %upstream_files;
+if ($exclude_upstream) {
+ unshift @INC, 'Porting';
+ require Maintainers;
+
+ for my $m (grep {!defined $Maintainers::Modules{$_}{UPSTREAM}
+ or $Maintainers::Modules{$_}{UPSTREAM} ne 'blead'}
+ keys %Maintainers::Modules) {
+ $upstream_files{$_} = 1 for Maintainers::get_module_files($m);
+ }
+}
# 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/Exporter/Heavy.pm'
+ 'cpan/ExtUtils-MakeMaker/t/lib/MakeMaker/Test/Setup/BFD.pm', # just a test module
+ 'cpan/ExtUtils-MakeMaker/t/lib/MakeMaker/Test/Setup/XS.pm', # just a test module
+ 'dist/Attribute-Handlers/demo/MyClass.pm', # it's just demonstration code
+ 'dist/Exporter/lib/Exporter/Heavy.pm',
+ 'lib/Carp/Heavy.pm',
+ 'lib/Config.pm', # no version number but contents will vary
+ 'win32/FindExt.pm',
} = ();
-my $skip_dirs = qr|^\./t/lib|;
-
-my @wanted;
-find(
- sub { /\.pm$/ &&
- $File::Find::dir !~ $skip_dirs &&
- ! exists $skip{$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/;
- if (-e $xs_file1 && -e $xs_file2) {
- return if compare($_, $file2) == 0 &&
- compare($xs_file1, $xs_file2) == 0;
- } else {
- return if compare($_, $file2) == 0;
- }
- my $version1 = eval {MM->parse_version($_)};
- my $version2 = eval {MM->parse_version($file2)};
- push @wanted, $File::Find::name
- if defined $version1 &&
- defined $version2 &&
- $version1 eq $version2
- } }, curdir);
-print map { $_, "\n" } sort @wanted;
+# Files to skip just for particular version(s),
+# usually due to some # mix-up
+
+my %skip_versions = (
+ # 'some/sample/file.pm' => [ '1.23', '1.24' ],
+ );
+
+my $skip_dirs = qr|^t/lib|;
+
+sub pm_file_from_xs {
+ my $xs = shift;
+
+ foreach my $try (sub {
+ # First try a .pm at the same level as the .xs file
+ # with the same basename
+ return shift =~ s/\.xs\z//r;
+ },
+ sub {
+ # Try for a (different) .pm at the same level, based
+ # on the directory name:
+ my ($path) = shift =~ m!^(.*)/!;
+ my ($last) = $path =~ m!([^-/]+)\z!;
+ return "$path/$last";
+ },
+ sub {
+ # Try to work out the extension's full package, and
+ # look for a .pm in lib/ based on that:
+ my ($path) = shift =~ m!^(.*)/!;
+ my ($last) = $path =~ m!([^/]+)\z!;
+ $last = 'List-Util' if $last eq 'Scalar-List-Utils';
+ $last =~ tr !-!/!;
+ return "$path/lib/$last";
+ }) {
+ # For all cases, first look to see if the .pm file is generated.
+ my $base = $try->($xs);
+ return "${base}_pm.PL" if -f "${base}_pm.PL";
+ return "${base}.pm" if -f "${base}.pm";
+ }
+
+ die "No idea which .pm file corresponds to '$xs', so aborting";
+}
+
+# Key is the .pm file from which we check the version.
+# Value is a reference to an array of files to check for differences
+# The trivial case is a pure perl module, where the array holds one element,
+# the perl module's file. The "fun" comes with XS modules, and the real fun
+# with XS modules with more than one XS file, and "interesting" layouts.
+
+my %module_diffs;
+
+foreach (`git --no-pager diff --name-only $tag_to_compare --diff-filter=ACMRTUXB`) {
+ chomp;
+ next unless m/^(.*)\//;
+ my $this_dir = $1;
+ next if $this_dir =~ $skip_dirs || exists $skip{$_};
+ next if exists $upstream_files{$_};
+ if (/\.pm\z/ || m|^lib/.*\.pl\z| || /_pm\.PL\z/) {
+ push @{$module_diffs{$_}}, $_;
+ } elsif (/\.xs\z/ && !/\bt\b/) {
+ push @{$module_diffs{pm_file_from_xs($_)}}, $_;
+ }
+}
+
+unless (%module_diffs) {
+ print "1..1\nok 1 - No difference found\n" if $tap;
+ exit;
+}
+
+printf "1..%d\n" => scalar keys %module_diffs if $tap;
+
+my $count;
+my $diff_cmd = "git --no-pager diff $tag_to_compare ";
+my $q = ($^O eq 'MSWin32' || $^O eq 'NetWare' || $^O eq 'VMS') ? '"' : "'";
+my (@diff);
+
+foreach my $pm_file (sort keys %module_diffs) {
+ # git has already told us that the files differ, so no need to grab each as
+ # a blob from git, and do the comparison ourselves.
+ my $pm_version = eval {MM->parse_version($pm_file)};
+ my $orig_pm_content = get_file_from_git($pm_file, $tag_to_compare);
+ my $orig_pm_version = eval {MM->parse_version(\$orig_pm_content)};
+ ++$count;
+
+ if (!defined $orig_pm_version || $orig_pm_version eq 'undef') { # sigh
+ print "ok $count - SKIP Can't parse \$VERSION in $pm_file\n"
+ if $tap;
+ } elsif (!defined $pm_version || $pm_version eq 'undef') {
+ print "not ok $count - in $pm_file version was $orig_pm_version, now unparsable\n" if $tap;
+ } elsif ($pm_version ne $orig_pm_version) { # good
+ print "ok $count - $pm_file\n" if $tap;
+ } else {
+ if ($tap) {
+ foreach (sort @{$module_diffs{$pm_file}}) {
+ print "# $_" for `$diff_cmd $q$_$q`;
+ }
+ if (exists $skip_versions{$pm_file}
+ and grep $pm_version eq $_, @{$skip_versions{$pm_file}}) {
+ print "ok $count - SKIP $pm_file version $pm_version\n";
+ } else {
+ print "not ok $count - $pm_file\n";
+ }
+ } else {
+ push @diff, @{$module_diffs{$pm_file}};
+ print "$pm_file\n";
+ }
+ }
+}
+
+sub get_file_from_git {
+ my ($file, $tag) = @_;
+ local $/;
+
+ use open IN => ':raw';
+ return scalar `git --no-pager show $tag:$file 2>$null`;
+}
+
+if ($diffs) {
+ for (sort @diff) {
+ print "\n";
+ system "$diff_cmd $q$_$q";
+ }
+}
https://perl5.git.perl.org / perl5.git / blobdiff