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=head1 NAME CPAN::Plugin::Specfile - Proof of concept implementation of a trivial CPAN::Plugin =head1 SYNOPSIS # once in the cpan shell o conf plugin_list push CPAN::Plugin::Specfile # make permanent o conf commit # any time in the cpan shell to write a spec file test Acme::Meta # disable # if it is the last in plugin_list: o conf plugin_list pop # otherwise, determine the index to splice: o conf plugin_list # and then use splice, e.g. to splice position 3: o conf plugin_list splice 3 1 =head1 DESCRIPTION Implemented as a post-test hook, this plugin writes a specfile after every successful test run. The content is also written to the terminal. As a side effect, the timestamps of the written specfiles reflect the linear order of all dependencies. B<WARNING:> This code is just a small demo how to use the plugin system of the CPAN shell, not a full fledged spec file writer. Do not expect new features in this plugin. =head2 OPTIONS The target directory to store the spec files in can be set using C<dir> as in o conf plugin_list push CPAN::Plugin::Specfile=dir,/tmp/specfiles-000042 The default directory for this is the C<plugins/CPAN::Plugin::Specfile> directory in the I<cpan_home> directory. =head1 AUTHOR Andreas Koenig <andk@cpan.org>, Branislav Zahradnik <barney@cpan.org> =cut package CPAN::Plugin::Specfile; our $VERSION = '0.02'; use File::Path; use File::Spec; sub __accessor { my ($class, $key) = @_; no strict 'refs'; *{$class . '::' . $key} = sub { my $self = shift; if (@_) { $self->{$key} = shift; } return $self->{$key}; }; } BEGIN { __PACKAGE__->__accessor($_) for qw(dir dir_default) } sub new { my($class, @rest) = @_; my $self = bless {}, $class; while (my($arg,$val) = splice @rest, 0, 2) { $self->$arg($val); } $self->dir_default(File::Spec->catdir($CPAN::Config->{cpan_home},"plugins",__PACKAGE__)); $self; } sub post_test { my $self = shift; my $distribution_object = shift; my $distribution = $distribution_object->pretty_id; unless ($CPAN::META->has_inst("CPAN::DistnameInfo")){ $CPAN::Frontend->mydie("CPAN::DistnameInfo not installed; cannot continue"); } my $d = CPAN::Shell->expand("Distribution",$distribution) or $CPAN::Frontend->mydie("Unknowns distribution '$distribution'\n"); my $build_dir = $d->{build_dir} or $CPAN::Frontend->mydie("Distribution has not been built yet, cannot proceed"); my %contains = map {($_ => undef)} $d->containsmods; my @m; my $width = 16; my $header = sub { my($header,$value) = @_; push @m, sprintf("%-s:%*s%s\n", $header, $width-length($header), "", $value); }; my $dni = CPAN::DistnameInfo->new($distribution); my $dist = $dni->dist; my $summary = CPAN::Shell->_guess_manpage($d,\%contains,$dist); $header->("Name", "perl-$dist"); my $version = $dni->version; $header->("Version", $version); $header->("Release", "1%{?dist}"); #Summary: Template processing system #Group: Development/Libraries #License: GPL+ or Artistic #URL: http://www.template-toolkit.org/ #Source0: http://search.cpan.org/CPAN/authors/id/A/AB/ABW/Template-Toolkit-%{version}.tar.gz #Patch0: Template-2.22-SREZIC-01.patch #BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n) for my $h_tuple ([Summary => $summary], [Group => "Development/Libraries"], [License =>], [URL =>], [BuildRoot => "%{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)"], [Requires => "perl(:MODULE_COMPAT_%(eval \"`%{__perl} -V:version`\"; echo \$version))"], ) { my($h,$v) = @$h_tuple; $v = "unknown" unless defined $v; $header->($h, $v); } $header->("Source0", sprintf( "http://search.cpan.org/CPAN/authors/id/%s/%s/%s", substr($distribution,0,1), substr($distribution,0,2), $distribution )); require POSIX; my @xs = glob "$build_dir/*.xs"; # quick try unless (@xs) { require ExtUtils::Manifest; my $manifest_file = "$build_dir/MANIFEST"; my $manifest = ExtUtils::Manifest::maniread($manifest_file); @xs = grep /\.xs$/, keys %$manifest; } if (! @xs) { $header->('BuildArch', 'noarch'); } for my $k (sort keys %contains) { my $m = CPAN::Shell->expand("Module",$k); my $v = $contains{$k} = $m->cpan_version; my $vspec = $v eq "undef" ? "" : " = $v"; $header->("Provides", "perl($k)$vspec"); } if (my $prereq_pm = $d->{prereq_pm}) { my %req; for my $reqkey (keys %$prereq_pm) { while (my($k,$v) = each %{$prereq_pm->{$reqkey}}) { $req{$k} = $v; } } if (-e "$build_dir/Build.PL" && ! exists $req{"Module::Build"}) { $req{"Module::Build"} = 0; } for my $k (sort keys %req) { next if $k eq "perl"; my $v = $req{$k}; my $vspec = defined $v && length $v && $v > 0 ? " >= $v" : ""; $header->(BuildRequires => "perl($k)$vspec"); next if $k =~ /^(Module::Build)$/; # MB is always only a # BuildRequires; if we # turn it into a # Requires, then we # would have to make it # a BuildRequires # everywhere we depend # on *one* MB built # module. $header->(Requires => "perl($k)$vspec"); } } push @m, "\n%define _use_internal_dependency_generator 0 %define __find_requires %{nil} %define __find_provides %{nil} "; push @m, "\n%description\n%{summary}.\n"; push @m, "\n%prep\n%setup -q -n $dist-%{version}\n"; if (-e "$build_dir/Build.PL") { # see http://www.redhat.com/archives/rpm-list/2002-July/msg00110.html about RPM_BUILD_ROOT vs %{buildroot} push @m, <<'EOF'; %build %{__perl} Build.PL --installdirs=vendor --libdoc installvendorman3dir ./Build %install rm -rf $RPM_BUILD_ROOT ./Build install destdir=$RPM_BUILD_ROOT create_packlist=0 find $RPM_BUILD_ROOT -depth -type d -exec rmdir {} 2>/dev/null \; %{_fixperms} $RPM_BUILD_ROOT/* %check ./Build test EOF } elsif (-e "$build_dir/Makefile.PL") { push @m, <<'EOF'; %build %{__perl} Makefile.PL INSTALLDIRS=vendor make %{?_smp_mflags} %install rm -rf $RPM_BUILD_ROOT make pure_install DESTDIR=$RPM_BUILD_ROOT find $RPM_BUILD_ROOT -type f -name .packlist -exec rm -f {} ';' find $RPM_BUILD_ROOT -depth -type d -exec rmdir {} 2>/dev/null ';' %{_fixperms} $RPM_BUILD_ROOT/* %check make test EOF } else { $CPAN::Frontend->mydie("'$distribution' has neither a Build.PL nor a Makefile.PL\n"); } push @m, "\n%clean\nrm -rf \$RPM_BUILD_ROOT\n"; my $vendorlib = @xs ? "vendorarch" : "vendorlib"; my $date = POSIX::strftime("%a %b %d %Y", gmtime); my @doc = grep { -e "$build_dir/$_" } qw(README Changes); my $exe_stanza = "\n"; if (my $exe_files = $d->_exe_files) { if (@$exe_files) { $exe_stanza = "%{_mandir}/man1/*.1*\n"; for my $e (@$exe_files) { unless (CPAN->has_inst("File::Basename")) { $CPAN::Frontend->mydie("File::Basename not installed, cannot continue"); } my $basename = File::Basename::basename($e); $exe_stanza .= "/usr/bin/$basename\n"; } } } push @m, <<EOF; %files %defattr(-,root,root,-) %doc @doc %{perl_$vendorlib}/* %{_mandir}/man3/*.3* $exe_stanza %changelog * $date <specfile\@specfile.cpan.org> - $version-1 - autogenerated by CPAN::Plugin::Specfile() EOF my $ret = join "", @m; $CPAN::Frontend->myprint($ret); my $target_dir = $self->dir || $self->dir_default; File::Path::mkpath($target_dir); my $outfile = File::Spec->catfile($target_dir, "perl-$dist.spec"); open my $specout, ">", $outfile or $CPAN::Frontend->mydie("Could not open >$outfile: $!"); print $specout $ret; $CPAN::Frontend->myprint("Wrote $outfile"); $ret; } 1;