use strict;
use warnings;
use ExtUtils::MakeMaker;
$ExtUtils::MakeMaker::VERSION =~ s/_//g;
my @sign = (MM->can("signature_target") ? (SIGN => 1) : ());
my $version_diff = 0; # we'll have to die if this becomes true
my $version_from = 'lib/File/Rsync/Mirror/Recent.pm';
my $version = MM->parse_version($version_from);
if ($ARGV[0] && $ARGV[0] eq "--setversion") {
    die "Your perl is a bit dated[$]].\nDo not make a release with it\n" if $] < 5.008;
    die "Your MakeMaker is a bit dated[$ExtUtils::MakeMaker::VERSION].\nYou should get a new one\n"
        if $ExtUtils::MakeMaker::VERSION < 6.4502;
    use lib "lib";
    eval {  require $version_from; }; die $@ if $@;
    my $makefile = "Makefile";
    unless (-f $makefile) {
        $makefile = "Makefile.old";
    }
    unless (-f $makefile) {
        die "no Makefile and no Makefile.old found";
    }
    open my $fh, "make -f $makefile the-release-name|" or die "Could not fork: $!";
    local $/;
    my ($have_version) = <$fh> =~ /^version\s+([\d\._]+)/m;
    close $fh or die "Could not close: $!";
    my ($namespace) = $version_from;
    $namespace =~ s|^lib/(.+)\.pm$|$1|;
    $namespace =~ s|/|::|g;
    eval qq{ if (\$$namespace\::VERSION != \$version) {
        warn "Not equal: $namespace\\::VERSION[\$$namespace\::VERSION] MM generated version[\$version]";
        \$version_diff = 1;
    }};
}

my $provides = {
                "File::Rsync::Mirror::Recent" =>
                {
                 version => $version,
                 file => $version_from,
                }
               };
for my $m (qw(Recentfile Recentfile::Done Recentfile::FakeBigFloat )) {
    my $fullm = "File::Rsync::Mirror::$m";
    my $file = $fullm;
    $file =~ s/::/\//g;
    $file = "lib/$file.pm";
    my $v = MM->parse_version($file);
    $provides->{$fullm} = {
                           version => $v,
                           file => $file,
                          };
}

my $preferzip = "gzip"; # bzip2 | gzip
warn "XXXXXXXXXX current zip variant: $preferzip XXXXXXXXXX\n" for 1..3;
sleep 2;
WriteMakefile
    (
     NAME                => 'File::Rsync::Mirror::Recent',
     VERSION             => $version,
     AUTHOR              => 'Andreas König <andreas.koenig.7os6VVqR@franz.ak.mind.de>',
     PL_FILES            => {},
     PREREQ_PM =>
     {
      # 'Data::Serializer' => 0.46, # restricted to YAML without it
      'accessors'        => 0,
      'Data::Float'      => 0,
      'File::Rsync'      => 0,
      'Test::More'       => 0,
      'File::Basename'   => 0,
      'File::Path'       => 0,
      'File::Temp'       => 0,
      'List::MoreUtils'  => 0,
      'List::Pairwise'   => 0,
      'Scalar::Util'     => 0,
      'Data::Serializer' => 0,
      'Time::HiRes'      => 0,
      'YAML::Syck'       => 0,
      'version'          => 0,
     },
     EXE_FILES    => [
                      grep {-x $_} grep { !/~/ } glob("bin/rrr*")
                     ],
     dist => {
              DIST_DEFAULT => join(" ", # note: order matters!
                                   "verify-changes-date",
                                   "Makefile",
                                   "META.yml",
                                   "setversion",
                                   "all",
                                   "tardist",
                                   "memo-howto-release",
                                  ),
              $preferzip eq "bzip2" ?
              (COMPRESS => 'bzip2 -9f',
               SUFFIX => ".bz2") :
              (COMPRESS => 'gzip -9f',
               SUFFIX => ".gz"),
             },
     ($ExtUtils::MakeMaker::VERSION >= 6.4502 ?
      (META_MERGE => {
                      # write: git push git+ssh://repo.or.cz/srv/git/rersyncrecent.git master
                      repository => "git://repo.or.cz/rersyncrecent.git",
                      provides => $provides,
                     }) : ()),
     @sign,
     clean               => { FILES => 'File-Rsync-Mirror-Recent-*' },
    );

if ($version_diff){
  die "
==> I had to update some \$VERSIONs <==
==> Your Makefile has been rebuilt. <==
==> Please rerun the make command.  <==
";
}

package MY;
sub postamble {
  my @m;
  push @m, q{
Makefile: }.$version_from.q{

META.yml: metafile
	$(CP) $(DISTVNAME)/META.yml  ./META.yml

setversion:
	$(PERL) Makefile.PL --setversion

verify-changes-date:
	@$(PERL) -ne 'BEGIN{my@t=(localtime)[5,4,3];$$t[0]+=1900;$$t[1]++;$$t=sprintf"%04d-%02d-%02d",@t}' \
		-e '$$ok++,exit if /^$$t\s/; END{die "Alert: did not find <$$t> in Changes file" unless $$ok}' Changes

verify-no-subdir:
	@$(PERL) -e 'my$$s=join",",grep{!/^($(OKDIRS))\z/x&&-d($$_)}glob"*";' \
		-e 'die"unexpected dir:$$s"if$$s'

the-release-name :
	$(NOECHO) $(ECHO) 'version ' $(VERSION)
	$(NOECHO) $(ECHO) 'release-name ' $(DISTVNAME).tar$(SUFFIX)

memo-howto-release:
	$(NOECHO) $(ECHO) 'after successful make dist and upload do not forget to'
	$(NOECHO) $(ECHO) ' make tag'
	$(NOECHO) $(ECHO) ' git push --tags'
	$(NOECHO) $(ECHO) 'before writing Changes do not forget to'
	$(NOECHO) $(ECHO) ' git --no-pager log --no-merges --pretty=format:" %x20%x20 - %s (%an)" | less'

tag ::
	git tag -m 'This is $(VERSION)' "$(VERSION)"

sign:
	cpansign -s
};
  join "", @m;
}

sub dist_test {
  return q{
# if we depend on $(DISTVNAME).tar$(SUFFIX), then the rest of the
# Makefile breaks our intent to NOT remake dist
disttest :
	rm -rf $(DISTVNAME)
	tar xvjf $(DISTVNAME).tar$(SUFFIX)
	cd $(DISTVNAME) && $(ABSPERLRUN) Makefile.PL
	cd $(DISTVNAME) && $(MAKE) $(PASTHRU)
	cd $(DISTVNAME) && $(MAKE) test $(PASTHRU)

distdir ::
	touch $(DISTVNAME)/SIGNATURE && $(CP) $(DISTVNAME)/SIGNATURE ./SIGNATURE
	$(CP) $(DISTVNAME)/META.yml  ./META.yml
	$(CP) $(DISTVNAME)/MANIFEST  ./MANIFEST

}
}

sub distdir {
  my $self = shift;
  my $out = $self->SUPER::distdir;
  $out =~ s/distdir :/distdir ::/g;
  return $out;
}

# dist_dir was the name in very old MakeMaker as of 5.005_04
sub dist_dir {
  my $self = shift;
  my $out = $self->SUPER::dist_dir;
  $out =~ s/distdir :/distdir ::/g;
  return $out;
}