[Buildroot] [PATCH 6/8 v3] tools: move scancpan out of support/scripts/

Yann E. MORIN yann.morin.1998 at free.fr
Fri Jun 30 21:50:10 UTC 2017


Move it to the top-level tools/ directory, so that it is easier to
find for users.

Add a legacy symlink for those users who already used them, so as
not to break their habits.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998 at free.fr>
Cc: "François Perrad" <francois.perrad at gadz.org>
Cc: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
Cc: Arnout Vandecappelle <arnout at mind.be>
---
 support/scripts/scancpan | 859 +----------------------------------------------
 tools/readme.txt         |   4 +
 tools/scancpan           | 858 ++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 863 insertions(+), 858 deletions(-)
 mode change 100755 => 120000 support/scripts/scancpan
 create mode 100755 tools/scancpan

diff --git a/support/scripts/scancpan b/support/scripts/scancpan
deleted file mode 100755
index 62df225361..0000000000
--- a/support/scripts/scancpan
+++ /dev/null
@@ -1,858 +0,0 @@
-#!/usr/bin/env perl
-
-# This chunk of stuff was generated by App::FatPacker. To find the original
-# file's code, look for the end of this BEGIN block or the string 'FATPACK'
-BEGIN {
-my %fatpacked;
-
-$fatpacked{"MetaCPAN/API/Tiny.pm"} = <<'METACPAN_API_TINY';
-  package MetaCPAN::API::Tiny;
-  {
-    $MetaCPAN::API::Tiny::VERSION = '1.131730';
-  }
-  use strict;
-  use warnings;
-  # ABSTRACT: A Tiny API client for MetaCPAN
-
-  use Carp;
-  use JSON::PP 'encode_json', 'decode_json';
-  use HTTP::Tiny;
-
-
-  sub new {
-      my ($class, @args) = @_;
-
-      $#_ % 2 == 0
-          or croak 'Arguments must be provided as name/value pairs';
-
-      my %params = @args;
-
-      die 'ua_args must be an array reference'
-          if $params{ua_args} && ref($params{ua_args}) ne 'ARRAY';
-
-      my $self = +{
-          base_url => $params{base_url} || 'http://api.metacpan.org/v0',
-          ua => $params{ua} || HTTP::Tiny->new(
-              $params{ua_args}
-                  ? @{$params{ua_args}}
-                  : (agent => 'MetaCPAN::API::Tiny/'
-                      . ($MetaCPAN::API::VERSION || 'xx'))),
-      };
-
-      return bless($self, $class);
-  }
-
-  sub _build_extra_params {
-      my $self = shift;
-
-      @_ % 2 == 0
-          or croak 'Incorrect number of params, must be key/value';
-
-      my %extra = @_;
-      my $ua = $self->{ua};
-
-      foreach my $key (keys %extra)
-      {
-          # The implementation in HTTP::Tiny uses + instead of %20, fix that
-          $extra{$key} = $ua->_uri_escape($extra{$key});
-          $extra{$key} =~ s/\+/%20/g;
-      }
-
-      my $params = join '&', map { "$_=" . $extra{$_} } sort keys %extra;
-
-      return $params;
-  }
-
-
-  # /source/{author}/{release}/{path}
-  sub source {
-      my $self  = shift;
-      my %opts  = @_ ? @_ : ();
-      my $url   = '';
-      my $error = "Provide 'author' and 'release' and 'path'";
-
-      %opts or croak $error;
-
-      if (
-          defined ( my $author  = $opts{'author'}  ) &&
-          defined ( my $release = $opts{'release'} ) &&
-          defined ( my $path    = $opts{'path'}    )
-        ) {
-          $url = "source/$author/$release/$path";
-      } else {
-          croak $error;
-      }
-
-      $url = $self->{base_url} . "/$url";
-
-      my $result = $self->{ua}->get($url);
-      $result->{'success'}
-          or croak "Failed to fetch '$url': " . $result->{'reason'};
-
-      return $result->{'content'};
-  }
-
-
-  # /release/{distribution}
-  # /release/{author}/{release}
-  sub release {
-      my $self  = shift;
-      my %opts  = @_ ? @_ : ();
-      my $url   = '';
-      my $error = "Either provide 'distribution', or 'author' and 'release', " .
-                  "or 'search'";
-
-      %opts or croak $error;
-
-      my %extra_opts = ();
-
-      if ( defined ( my $dist = $opts{'distribution'} ) ) {
-          $url = "release/$dist";
-      } elsif (
-          defined ( my $author  = $opts{'author'}  ) &&
-          defined ( my $release = $opts{'release'} )
-        ) {
-          $url = "release/$author/$release";
-      } elsif ( defined ( my $search_opts = $opts{'search'} ) ) {
-          ref $search_opts && ref $search_opts eq 'HASH'
-              or croak $error;
-
-          %extra_opts = %{$search_opts};
-          $url        = 'release/_search';
-      } else {
-          croak $error;
-      }
-
-      return $self->fetch( $url, %extra_opts );
-  }
-
-
-  # /pod/{module}
-  # /pod/{author}/{release}/{path}
-  sub pod {
-      my $self  = shift;
-      my %opts  = @_ ? @_ : ();
-      my $url   = '';
-      my $error = "Either provide 'module' or 'author and 'release' and 'path'";
-
-      %opts or croak $error;
-
-      if ( defined ( my $module = $opts{'module'} ) ) {
-          $url = "pod/$module";
-      } elsif (
-          defined ( my $author  = $opts{'author'}  ) &&
-          defined ( my $release = $opts{'release'} ) &&
-          defined ( my $path    = $opts{'path'}    )
-        ) {
-          $url = "pod/$author/$release/$path";
-      } else {
-          croak $error;
-      }
-
-      # check content-type
-      my %extra = ();
-      if ( defined ( my $type = $opts{'content-type'} ) ) {
-          $type =~ m{^ text/ (?: html|plain|x-pod|x-markdown ) $}x
-              or croak 'Incorrect content-type provided';
-
-          $extra{headers}{'content-type'} = $type;
-      }
-
-      $url = $self->{base_url}. "/$url";
-
-      my $result = $self->{ua}->get( $url, \%extra );
-      $result->{'success'}
-          or croak "Failed to fetch '$url': " . $result->{'reason'};
-
-      return $result->{'content'};
-  }
-
-
-  # /module/{module}
-  sub module {
-      my $self = shift;
-      my $name = shift;
-
-      $name or croak 'Please provide a module name';
-
-      return $self->fetch("module/$name");
-  }
-
-
-  # file() is a synonym of module
-  sub file { goto &module }
-
-
-  # /author/{author}
-  sub author {
-      my $self = shift;
-      my ( $pause_id, $url, %extra_opts );
-
-      if ( @_ == 1 ) {
-          $url = 'author/' . shift;
-      } elsif ( @_ == 2 ) {
-          my %opts = @_;
-
-          if ( defined $opts{'pauseid'} ) {
-              $url = "author/" . $opts{'pauseid'};
-          } elsif ( defined $opts{'search'} ) {
-              my $search_opts = $opts{'search'};
-
-              ref $search_opts && ref $search_opts eq 'HASH'
-                  or croak "'search' key must be hashref";
-
-              %extra_opts = %{$search_opts};
-              $url        = 'author/_search';
-          } else {
-              croak 'Unknown option given';
-          }
-      } else {
-          croak 'Please provide an author PAUSEID or a "search"';
-      }
-
-      return $self->fetch( $url, %extra_opts );
-  }
-
-
-
-  sub fetch {
-      my $self    = shift;
-      my $url     = shift;
-      my $extra   = $self->_build_extra_params(@_);
-      my $base    = $self->{base_url};
-      my $req_url = $extra ? "$base/$url?$extra" : "$base/$url";
-
-      my $result  = $self->{ua}->get($req_url);
-      return $self->_decode_result( $result, $req_url );
-  }
-
-
-  sub post {
-      my $self  = shift;
-      my $url   = shift;
-      my $query = shift;
-      my $base  = $self->{base_url};
-
-      defined $url
-          or croak 'First argument of URL must be provided';
-
-      ref $query and ref $query eq 'HASH'
-          or croak 'Second argument of query hashref must be provided';
-
-      my $query_json = encode_json( $query );
-      my $result     = $self->{ua}->request(
-          'POST',
-          "$base/$url",
-          {
-              headers => { 'Content-Type' => 'application/json' },
-              content => $query_json,
-          }
-      );
-
-      return $self->_decode_result( $result, $url, $query_json );
-  }
-
-  sub _decode_result {
-      my $self = shift;
-      my ( $result, $url, $original ) = @_;
-      my $decoded_result;
-
-      ref $result and ref $result eq 'HASH'
-          or croak 'First argument must be hashref';
-
-      defined $url
-          or croak 'Second argument of a URL must be provided';
-
-      if ( defined ( my $success = $result->{'success'} ) ) {
-          my $reason = $result->{'reason'} || '';
-          $reason .= ( defined $original ? " (request: $original)" : '' );
-
-          $success or croak "Failed to fetch '$url': $reason";
-      } else {
-          croak 'Missing success in return value';
-      }
-
-      defined ( my $content = $result->{'content'} )
-          or croak 'Missing content in return value';
-
-      eval { $decoded_result = decode_json $content; 1 }
-      or do { croak "Couldn't decode '$content': $@" };
-
-      return $decoded_result;
-  }
-
-  1;
-
-  __END__
-
-  =pod
-
-  =head1 NAME
-
-  MetaCPAN::API::Tiny - A Tiny API client for MetaCPAN
-
-  =head1 VERSION
-
-  version 1.131730
-
-  =head1 DESCRIPTION
-
-  This is the Tiny version of L<MetaCPAN::API>. It implements a compatible API
-  with a few notable exceptions:
-
-  =over 4
-
-  =item Attributes are direct hash access
-
-  The attributes defined using Mo(o|u)se are now accessed via the blessed hash
-  directly. There are no accessors defined to access this elements.
-
-  =item Exception handling
-
-  Instead of using Try::Tiny, raw evals are used. This could potentially cause
-  issues, so just be aware.
-
-  =item Testing
-
-  Test::Fatal was replaced with an eval implementation of exception().
-  Test::TinyMocker usage is retained, but may be absorbed since it is pure perl
-
-  =back
-
-  =head1 CLASS_METHODS
-
-  =head2 new
-
-  new is the constructor for MetaCPAN::API::Tiny. In the non-tiny version of this
-  module, this is provided via Any::Moose built from the attributes defined. In
-  the tiny version, we define our own constructor. It takes the same arguments
-  and provides similar checks to MetaCPAN::API with regards to arguments passed.
-
-  =head1 PUBLIC_METHODS
-
-  =head2 source
-
-      my $source = $mcpan->source(
-          author  => 'DOY',
-          release => 'Moose-2.0201',
-          path    => 'lib/Moose.pm',
-      );
-
-  Searches MetaCPAN for a module or a specific release and returns the plain source.
-
-  =head2 release
-
-      my $result = $mcpan->release( distribution => 'Moose' );
-
-      # or
-      my $result = $mcpan->release( author => 'DOY', release => 'Moose-2.0001' );
-
-  Searches MetaCPAN for a dist.
-
-  You can do complex searches using 'search' parameter:
-
-      # example lifted from MetaCPAN docs
-      my $result = $mcpan->release(
-          search => {
-              author => "OALDERS AND ",
-              filter => "status:latest",
-              fields => "name",
-              size   => 1,
-          },
-      );
-
-  =head2 pod
-
-      my $result = $mcpan->pod( module => 'Moose' );
-
-      # or
-      my $result = $mcpan->pod(
-          author  => 'DOY',
-          release => 'Moose-2.0201',
-          path    => 'lib/Moose.pm',
-      );
-
-  Searches MetaCPAN for a module or a specific release and returns the POD.
-
-  =head2 module
-
-      my $result = $mcpan->module('MetaCPAN::API');
-
-  Searches MetaCPAN and returns a module's ".pm" file.
-
-  =head2 file
-
-  A synonym of L</module>
-
-  =head2 author
-
-      my $result1 = $mcpan->author('XSAWYERX');
-      my $result2 = $mcpan->author( pauseid => 'XSAWYERX' );
-
-  Searches MetaCPAN for a specific author.
-
-  You can do complex searches using 'search' parameter:
-
-      # example lifted from MetaCPAN docs
-      my $result = $mcpan->author(
-          search => {
-              q    => 'profile.name:twitter',
-              size => 1,
-          },
-      );
-
-  =head2 fetch
-
-      my $result = $mcpan->fetch('/release/distribution/Moose');
-
-      # with parameters
-      my $more = $mcpan->fetch(
-          '/release/distribution/Moose',
-          param => 'value',
-      );
-
-  This is a helper method for API implementations. It fetches a path from MetaCPAN, decodes the JSON from the content variable and returns it.
-
-  You don't really need to use it, but you can in case you want to write your own extension implementation to MetaCPAN::API.
-
-  It accepts an additional hash as "GET" parameters.
-
-  =head2 post
-
-      # /release&content={"query":{"match_all":{}},"filter":{"prefix":{"archive":"Cache-Cache-1.06"}}}
-      my $result = $mcpan->post(
-          'release',
-          {
-              query  => { match_all => {} },
-              filter => { prefix => { archive => 'Cache-Cache-1.06' } },
-          },
-      );
-
-  The POST equivalent of the "fetch()" method. It gets the path and JSON request.
-
-  =head1 THANKS
-
-  Overall the tests and code were ripped directly from MetaCPAN::API and
-  tiny-fied. A big thanks to Sawyer X for writing the original module.
-
-  =head1 AUTHOR
-
-  Nicholas R. Perez <nperez at cpan.org>
-
-  =head1 COPYRIGHT AND LICENSE
-
-  This software is copyright (c) 2013 by Nicholas R. Perez <nperez at cpan.org>.
-
-  This is free software; you can redistribute it and/or modify it under
-  the same terms as the Perl 5 programming language system itself.
-
-  =cut
-METACPAN_API_TINY
-
-s/^  //mg for values %fatpacked;
-
-unshift @INC, sub {
-  if (my $fat = $fatpacked{$_[1]}) {
-    if ($] < 5.008) {
-      return sub {
-        return 0 unless length $fat;
-        $fat =~ s/^([^\n]*\n?)//;
-        $_ = $1;
-        return 1;
-      };
-    }
-    open my $fh, '<', \$fat
-      or die "FatPacker error loading $_[1] (could be a perl installation issue?)";
-    return $fh;
-  }
-  return
-};
-
-} # END OF FATPACK CODE
-
-
-use 5.010;
-use strict;
-use warnings;
-use Fatal qw(open close);
-
-use Getopt::Long;
-use Pod::Usage;
-use File::Basename;
-use Module::CoreList;
-use HTTP::Tiny;
-use Safe;
-use MetaCPAN::API::Tiny;
-
-# Below, 5.024 should be aligned with the version of perl actually
-# bundled in Buildroot:
-die <<"MSG" if $] < 5.024;
-This script needs a host perl with the same major version as Buildroot target perl.
-
-Your current host perl is:
-    $^X
-    version $]
-
-You may install a local one by running:
-    perlbrew install perl-5.24.0
-MSG
-
-my ($help, $man, $quiet, $force, $recommend, $test, $host);
-my $target = 1;
-GetOptions( 'help|?' => \$help,
-            'man' => \$man,
-            'quiet|q' => \$quiet,
-            'force|f' => \$force,
-            'host!' => \$host,
-            'target!' => \$target,
-            'recommend' => \$recommend,
-            'test' => \$test
-) or pod2usage(-exitval => 1);
-pod2usage(-exitval => 0) if $help;
-pod2usage(-exitval => 0, -verbose => 2) if $man;
-pod2usage(-exitval => 1) if scalar @ARGV == 0;
-
-my %dist;               # name -> metacpan data
-my %need_target;        # name -> 1 if target package is needed
-my %need_host;          # name -> 1 if host package is needed
-my %need_dlopen;        # name -> 1 if requires dynamic library
-my %deps_build;         # name -> list of host dependencies
-my %deps_runtime;       # name -> list of target dependencies
-my %deps_optional;      # name -> list of optional target dependencies
-my %license_files;      # name -> list of license files
-my %checksum;           # author -> list of checksum
-my $mirror = 'http://cpan.metacpan.org';        # a CPAN mirror
-my $mcpan = MetaCPAN::API::Tiny->new(base_url => 'http://fastapi.metacpan.org/v1');
-my $ua = HTTP::Tiny->new();
-
-sub get_checksum {
-    my ($url) = @_;
-    my($path) = $url =~ m|^[^:/?#]+://[^/?#]*([^?#]*)|;
-    my($basename, $dirname) = fileparse( $path );
-    unless ($checksum{$dirname}) {
-        my $url = $mirror . $dirname . q{CHECKSUMS};
-        my $response = $ua->get($url);
-        $checksum{$dirname} = $response->{content};
-    }
-    my $chksum = Safe->new->reval($checksum{$dirname});
-    return $chksum->{$basename}, $basename;
-}
-
-sub is_xs {
-    my ($manifest) = @_;
-    # This heuristic determines if a module is a native extension, by searching
-    # some file extension types in the MANIFEST of the distribution.
-    # It was inspired by http://deps.cpantesters.org/static/purity.html
-    return $manifest =~ m/\.(swg|xs|c|h|i)[\n\s]/;
-}
-
-sub find_license_files {
-    my ($manifest) = @_;
-    my @license_files;
-    foreach (split /\n/, $manifest) {
-        next if m|/|;
-        push @license_files, $_ if m/(ARTISTIC|COPYING|COPYRIGHT|LICENSE)/i;
-    }
-    if (scalar @license_files == 0 && $manifest =~ m/(README)[\n\s]/i) {
-        @license_files = ($1);
-    }
-    return \@license_files;
-}
-
-sub fetch {
-    my ($name, $need_target, $need_host, $top) = @_;
-    $need_target{$name} = $need_target if $need_target;
-    $need_host{$name} = $need_host if $need_host;
-    unless ($dist{$name} && !$top) {
-        say qq{fetch ${name}} unless $quiet;
-        my $result = $mcpan->release( distribution => $name );
-        $dist{$name} = $result;
-        my $manifest = $mcpan->source( author => $result->{author},
-                                       release => $name . q{-} . $result->{version},
-                                       path => 'MANIFEST' );
-        $need_dlopen{$name} = is_xs( $manifest );
-        $license_files{$name} = find_license_files( $manifest );
-        my %build = ();
-        my %runtime = ();
-        my %optional = ();
-        foreach my $dep (@{$result->{dependency}}) {
-            my $modname = ${$dep}{module};
-            next if $modname eq q{perl};
-            next if $modname =~ m|^Alien|;
-            next if $modname =~ m|^Win32|;
-            next if !($test && $top) && $modname =~ m|^Test|;
-            next if Module::CoreList::is_core( $modname, undef, $] );
-            # we could use the host Module::CoreList data, because host perl and
-            # target perl have the same major version
-            next if ${$dep}{phase} eq q{develop};
-            next if !($test && $top) && ${$dep}{phase} eq q{test};
-            my $distname = $mcpan->module( $modname )->{distribution};
-            if (${$dep}{phase} eq q{runtime}) {
-                if (${$dep}{relationship} eq q{requires}) {
-                    $runtime{$distname} = 1;
-                }
-                else {
-                    $optional{$distname} = 1 if $recommend && $top;
-                }
-            }
-            else { # configure, build
-                $build{$distname} = 1;
-            }
-        }
-        $deps_build{$name} = [keys %build];
-        $deps_runtime{$name} = [keys %runtime];
-        $deps_optional{$name} = [keys %optional];
-        foreach my $distname (@{$deps_build{$name}}) {
-            fetch( $distname, 0, 1 );
-        }
-        foreach my $distname (@{$deps_runtime{$name}}) {
-            fetch( $distname, $need_target, $need_host );
-            $need_dlopen{$name} ||= $need_dlopen{$distname};
-        }
-        foreach my $distname (@{$deps_optional{$name}}) {
-            fetch( $distname, $need_target, $need_host );
-        }
-    }
-    return;
-}
-
-foreach my $distname (@ARGV) {
-    # Command-line's distributions
-    fetch( $distname, !!$target, !!$host, 1 );
-}
-say scalar keys %dist, q{ packages fetched.} unless $quiet;
-
-# Buildroot package name: lowercase
-sub fsname {
-    my $name = shift;
-    $name =~ s|_|-|g;
-    return q{perl-} . lc $name;
-}
-
-# Buildroot variable name: uppercase
-sub brname {
-    my $name = shift;
-    $name =~ s|-|_|g;
-    return uc $name;
-}
-
-while (my ($distname, $dist) = each %dist) {
-    my $fsname = fsname( $distname );
-    my $dirname = q{package/} . $fsname;
-    my $cfgname = $dirname . q{/Config.in};
-    my $mkname = $dirname . q{/} . $fsname . q{.mk};
-    my $hashname = $dirname . q{/} . $fsname . q{.hash};
-    my $brname = brname( $fsname );
-    mkdir $dirname unless -d $dirname;
-    if ($need_target{$distname} && ($force || !-f $cfgname)) {
-        my $abstract = $dist->{abstract};
-        my $homepage = $dist->{resources}->{homepage} || qq{https://metacpan.org/release/${distname}};
-        say qq{write ${cfgname}} unless $quiet;
-        open my $fh, q{>}, $cfgname;
-        say {$fh} qq{config BR2_PACKAGE_${brname}};
-        say {$fh} qq{\tbool "${fsname}"};
-        say {$fh} qq{\tdepends on !BR2_STATIC_LIBS} if $need_dlopen{$distname};
-        foreach my $dep (sort @{$deps_runtime{$distname}}) {
-            my $brdep = brname( fsname( $dep ) );
-            say {$fh} qq{\tselect BR2_PACKAGE_${brdep}};
-        }
-        say {$fh} qq{\thelp};
-        say {$fh} qq{\t  ${abstract}\n} if $abstract;
-        say {$fh} qq{\t  ${homepage}};
-        if ($need_dlopen{$distname}) {
-            say {$fh} qq{\ncomment "${fsname} needs a toolchain w/ dynamic library"};
-            say {$fh} qq{\tdepends on BR2_STATIC_LIBS};
-        }
-        close $fh;
-    }
-    if ($force || !-f $mkname) {
-        my $version = $dist->{version};
-        my($path) = $dist->{download_url} =~ m|^[^:/?#]+://[^/?#]*([^?#]*)|;
-        # this URL contains only the scheme, auth and path parts (but no query and fragment parts)
-        # the scheme is not used, because the job is done by the BR download infrastructure
-        # the auth part is not used, because we use $(BR2_CPAN_MIRROR)
-        my($filename, $directories, $suffix) = fileparse( $path, q{tar.gz}, q{tgz} );
-        $directories =~ s|/$||;
-        my $dependencies = join q{ }, map( { q{host-} . fsname( $_ ); } sort @{$deps_build{$distname}} ),
-                                      map( { fsname( $_ ); } sort @{$deps_runtime{$distname}} );
-        my $host_dependencies = join q{ }, map { q{host-} . fsname( $_ ); } sort( @{$deps_build{$distname}},
-                                                                                  @{$deps_runtime{$distname}} );
-        my $license = ref $dist->{license} eq 'ARRAY'
-                    ? join q{ or }, @{$dist->{license}}
-                    : $dist->{license};
-        # BR requires license name as in http://spdx.org/licenses/
-        $license =~ s|apache_2_0|Apache-2.0|;
-        $license =~ s|artistic_2|Artistic-2.0|;
-        $license =~ s|mit|MIT|;
-        $license =~ s|openssl|OpenSSL|;
-        $license =~ s|perl_5|Artistic or GPL-1.0+|;
-        my $license_files = join q{ }, @{$license_files{$distname}};
-        say qq{write ${mkname}} unless $quiet;
-        open my $fh, q{>}, $mkname;
-        say {$fh} qq{################################################################################};
-        say {$fh} qq{#};
-        say {$fh} qq{# ${fsname}};
-        say {$fh} qq{#};
-        say {$fh} qq{################################################################################};
-        say {$fh} qq{};
-        say {$fh} qq{${brname}_VERSION = ${version}};
-        say {$fh} qq{${brname}_SOURCE = ${distname}-\$(${brname}_VERSION).${suffix}};
-        say {$fh} qq{${brname}_SITE = \$(BR2_CPAN_MIRROR)${directories}};
-        say {$fh} qq{${brname}_DEPENDENCIES = ${dependencies}} if $need_target{$distname} && $dependencies;
-        say {$fh} qq{HOST_${brname}_DEPENDENCIES = ${host_dependencies}} if $need_host{$distname} && $host_dependencies;
-        say {$fh} qq{${brname}_LICENSE = ${license}} if $license && $license ne q{unknown};
-        say {$fh} qq{${brname}_LICENSE_FILES = ${license_files}} if $license_files;
-        say {$fh} qq{};
-        foreach (sort @{$deps_optional{$distname}}) {
-            next if grep { $_ eq $distname; } @{$deps_runtime{$_}};     # avoid cyclic dependencies
-            my $opt_brname = brname( $_ );
-            my $opt_fsname = fsname( $_ );
-            say {$fh} qq{ifeq (\$(BR2_PACKAGE_PERL_${opt_brname}),y)};
-            say {$fh} qq{${brname}_DEPENDENCIES += ${opt_fsname}};
-            say {$fh} qq{endif};
-            say {$fh} qq{};
-        }
-        say {$fh} qq{\$(eval \$(perl-package))} if $need_target{$distname};
-        say {$fh} qq{\$(eval \$(host-perl-package))} if $need_host{$distname};
-        close $fh;
-    }
-    if ($force || !-f $hashname) {
-        my($checksum, $filename) = get_checksum($dist->{download_url});
-        my $md5 = $checksum->{md5};
-        my $sha256 = $checksum->{sha256};
-        say qq{write ${hashname}} unless $quiet;
-        open my $fh, q{>}, $hashname;
-        say {$fh} qq{# retrieved by scancpan from ${mirror}/};
-        say {$fh} qq{md5    ${md5} ${filename}};
-        say {$fh} qq{sha256 ${sha256} ${filename}};
-        close $fh;
-    }
-}
-
-my %pkg;
-my $cfgname = q{package/Config.in};
-if (-f $cfgname) {
-    open my $fh, q{<}, $cfgname;
-    while (<$fh>) {
-        chomp;
-        $pkg{$_} = 1 if m|package/perl-|;
-    }
-    close $fh;
-}
-
-foreach my $distname (keys %need_target) {
-    my $fsname = fsname( $distname );
-    $pkg{qq{\tsource "package/${fsname}/Config.in"}} = 1;
-}
-
-say qq{${cfgname} must contain the following lines:};
-say join qq{\n}, sort keys %pkg;
-
-__END__
-
-=head1 NAME
-
-support/scripts/scancpan Try-Tiny Moo
-
-=head1 SYNOPSIS
-
-supports/scripts/scancpan [options] [distname ...]
-
- Options:
-   -help
-   -man
-   -quiet
-   -force
-   -target/-notarget
-   -host/-nohost
-   -recommend
-   -test
-
-=head1 OPTIONS
-
-=over 8
-
-=item B<-help>
-
-Prints a brief help message and exits.
-
-=item B<-man>
-
-Prints the manual page and exits.
-
-=item B<-quiet>
-
-Executes without output
-
-=item B<-force>
-
-Forces the overwriting of existing files.
-
-=item B<-target/-notarget>
-
-Switches package generation for the target variant (the default is C<-target>).
-
-=item B<-host/-nohost>
-
-Switches package generation for the host variant (the default is C<-nohost>).
-
-=item B<-recommend>
-
-Adds I<recommended> dependencies.
-
-=item B<-test>
-
-Adds dependencies for test.
-
-=back
-
-=head1 DESCRIPTION
-
-This script creates templates of the Buildroot package files for all the
-Perl/CPAN distributions required by the specified distnames. The
-dependencies and metadata are fetched from https://metacpan.org/.
-
-After running this script, it is necessary to check the generated files.
-You have to manually add the license files (PERL_FOO_LICENSE_FILES variable).
-For distributions that link against a target library, you have to add the
-buildroot package name for that library to the DEPENDENCIES variable.
-
-See the Buildroot documentation for details on the usage of the Perl
-infrastructure.
-
-The major version of the host perl must be aligned on the target one,
-in order to work with the right CoreList data.
-
-=head1 LICENSE
-
-Copyright (C) 2013-2016 by Francois Perrad <francois.perrad at gadz.org>
-
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
-This script is a part of Buildroot.
-
-This script requires the module C<MetaCPAN::API::Tiny> (version 1.131730)
-which was included at the beginning of this file by the tool C<fatpack>.
-
-See L<http://search.cpan.org/~nperez/MetaCPAN-API-Tiny-1.131730/>.
-
-See L<http://search.cpan.org/search?query=App-FatPacker&mode=dist>.
-
-These both libraries are free software and may be distributed under the same
-terms as perl itself.
-
-And perl may be distributed under the terms of Artistic v1 or GPL v1 license.
-
-=cut
diff --git a/support/scripts/scancpan b/support/scripts/scancpan
new file mode 120000
index 0000000000..ac09a4c9c0
--- /dev/null
+++ b/support/scripts/scancpan
@@ -0,0 +1 @@
+../../tools/scancpan
\ No newline at end of file
diff --git a/tools/readme.txt b/tools/readme.txt
index 4d6d5fb62c..522c6898bd 100644
--- a/tools/readme.txt
+++ b/tools/readme.txt
@@ -17,6 +17,10 @@ get-developpers
     of Buildroot, so they can be Cc:ed on a mail. Accepts a patch as
     input, a package name or and architecture name.
 
+scancpan
+    a script to create a Buildroot package by scanning a CPAN module
+    description.
+
 size-stat-compare
     a script to compare the rootfs size between two differnt Buildroot
     configurations. This can be used to identify the size impact of
diff --git a/tools/scancpan b/tools/scancpan
new file mode 100755
index 0000000000..62df225361
--- /dev/null
+++ b/tools/scancpan
@@ -0,0 +1,858 @@
+#!/usr/bin/env perl
+
+# This chunk of stuff was generated by App::FatPacker. To find the original
+# file's code, look for the end of this BEGIN block or the string 'FATPACK'
+BEGIN {
+my %fatpacked;
+
+$fatpacked{"MetaCPAN/API/Tiny.pm"} = <<'METACPAN_API_TINY';
+  package MetaCPAN::API::Tiny;
+  {
+    $MetaCPAN::API::Tiny::VERSION = '1.131730';
+  }
+  use strict;
+  use warnings;
+  # ABSTRACT: A Tiny API client for MetaCPAN
+
+  use Carp;
+  use JSON::PP 'encode_json', 'decode_json';
+  use HTTP::Tiny;
+
+
+  sub new {
+      my ($class, @args) = @_;
+
+      $#_ % 2 == 0
+          or croak 'Arguments must be provided as name/value pairs';
+
+      my %params = @args;
+
+      die 'ua_args must be an array reference'
+          if $params{ua_args} && ref($params{ua_args}) ne 'ARRAY';
+
+      my $self = +{
+          base_url => $params{base_url} || 'http://api.metacpan.org/v0',
+          ua => $params{ua} || HTTP::Tiny->new(
+              $params{ua_args}
+                  ? @{$params{ua_args}}
+                  : (agent => 'MetaCPAN::API::Tiny/'
+                      . ($MetaCPAN::API::VERSION || 'xx'))),
+      };
+
+      return bless($self, $class);
+  }
+
+  sub _build_extra_params {
+      my $self = shift;
+
+      @_ % 2 == 0
+          or croak 'Incorrect number of params, must be key/value';
+
+      my %extra = @_;
+      my $ua = $self->{ua};
+
+      foreach my $key (keys %extra)
+      {
+          # The implementation in HTTP::Tiny uses + instead of %20, fix that
+          $extra{$key} = $ua->_uri_escape($extra{$key});
+          $extra{$key} =~ s/\+/%20/g;
+      }
+
+      my $params = join '&', map { "$_=" . $extra{$_} } sort keys %extra;
+
+      return $params;
+  }
+
+
+  # /source/{author}/{release}/{path}
+  sub source {
+      my $self  = shift;
+      my %opts  = @_ ? @_ : ();
+      my $url   = '';
+      my $error = "Provide 'author' and 'release' and 'path'";
+
+      %opts or croak $error;
+
+      if (
+          defined ( my $author  = $opts{'author'}  ) &&
+          defined ( my $release = $opts{'release'} ) &&
+          defined ( my $path    = $opts{'path'}    )
+        ) {
+          $url = "source/$author/$release/$path";
+      } else {
+          croak $error;
+      }
+
+      $url = $self->{base_url} . "/$url";
+
+      my $result = $self->{ua}->get($url);
+      $result->{'success'}
+          or croak "Failed to fetch '$url': " . $result->{'reason'};
+
+      return $result->{'content'};
+  }
+
+
+  # /release/{distribution}
+  # /release/{author}/{release}
+  sub release {
+      my $self  = shift;
+      my %opts  = @_ ? @_ : ();
+      my $url   = '';
+      my $error = "Either provide 'distribution', or 'author' and 'release', " .
+                  "or 'search'";
+
+      %opts or croak $error;
+
+      my %extra_opts = ();
+
+      if ( defined ( my $dist = $opts{'distribution'} ) ) {
+          $url = "release/$dist";
+      } elsif (
+          defined ( my $author  = $opts{'author'}  ) &&
+          defined ( my $release = $opts{'release'} )
+        ) {
+          $url = "release/$author/$release";
+      } elsif ( defined ( my $search_opts = $opts{'search'} ) ) {
+          ref $search_opts && ref $search_opts eq 'HASH'
+              or croak $error;
+
+          %extra_opts = %{$search_opts};
+          $url        = 'release/_search';
+      } else {
+          croak $error;
+      }
+
+      return $self->fetch( $url, %extra_opts );
+  }
+
+
+  # /pod/{module}
+  # /pod/{author}/{release}/{path}
+  sub pod {
+      my $self  = shift;
+      my %opts  = @_ ? @_ : ();
+      my $url   = '';
+      my $error = "Either provide 'module' or 'author and 'release' and 'path'";
+
+      %opts or croak $error;
+
+      if ( defined ( my $module = $opts{'module'} ) ) {
+          $url = "pod/$module";
+      } elsif (
+          defined ( my $author  = $opts{'author'}  ) &&
+          defined ( my $release = $opts{'release'} ) &&
+          defined ( my $path    = $opts{'path'}    )
+        ) {
+          $url = "pod/$author/$release/$path";
+      } else {
+          croak $error;
+      }
+
+      # check content-type
+      my %extra = ();
+      if ( defined ( my $type = $opts{'content-type'} ) ) {
+          $type =~ m{^ text/ (?: html|plain|x-pod|x-markdown ) $}x
+              or croak 'Incorrect content-type provided';
+
+          $extra{headers}{'content-type'} = $type;
+      }
+
+      $url = $self->{base_url}. "/$url";
+
+      my $result = $self->{ua}->get( $url, \%extra );
+      $result->{'success'}
+          or croak "Failed to fetch '$url': " . $result->{'reason'};
+
+      return $result->{'content'};
+  }
+
+
+  # /module/{module}
+  sub module {
+      my $self = shift;
+      my $name = shift;
+
+      $name or croak 'Please provide a module name';
+
+      return $self->fetch("module/$name");
+  }
+
+
+  # file() is a synonym of module
+  sub file { goto &module }
+
+
+  # /author/{author}
+  sub author {
+      my $self = shift;
+      my ( $pause_id, $url, %extra_opts );
+
+      if ( @_ == 1 ) {
+          $url = 'author/' . shift;
+      } elsif ( @_ == 2 ) {
+          my %opts = @_;
+
+          if ( defined $opts{'pauseid'} ) {
+              $url = "author/" . $opts{'pauseid'};
+          } elsif ( defined $opts{'search'} ) {
+              my $search_opts = $opts{'search'};
+
+              ref $search_opts && ref $search_opts eq 'HASH'
+                  or croak "'search' key must be hashref";
+
+              %extra_opts = %{$search_opts};
+              $url        = 'author/_search';
+          } else {
+              croak 'Unknown option given';
+          }
+      } else {
+          croak 'Please provide an author PAUSEID or a "search"';
+      }
+
+      return $self->fetch( $url, %extra_opts );
+  }
+
+
+
+  sub fetch {
+      my $self    = shift;
+      my $url     = shift;
+      my $extra   = $self->_build_extra_params(@_);
+      my $base    = $self->{base_url};
+      my $req_url = $extra ? "$base/$url?$extra" : "$base/$url";
+
+      my $result  = $self->{ua}->get($req_url);
+      return $self->_decode_result( $result, $req_url );
+  }
+
+
+  sub post {
+      my $self  = shift;
+      my $url   = shift;
+      my $query = shift;
+      my $base  = $self->{base_url};
+
+      defined $url
+          or croak 'First argument of URL must be provided';
+
+      ref $query and ref $query eq 'HASH'
+          or croak 'Second argument of query hashref must be provided';
+
+      my $query_json = encode_json( $query );
+      my $result     = $self->{ua}->request(
+          'POST',
+          "$base/$url",
+          {
+              headers => { 'Content-Type' => 'application/json' },
+              content => $query_json,
+          }
+      );
+
+      return $self->_decode_result( $result, $url, $query_json );
+  }
+
+  sub _decode_result {
+      my $self = shift;
+      my ( $result, $url, $original ) = @_;
+      my $decoded_result;
+
+      ref $result and ref $result eq 'HASH'
+          or croak 'First argument must be hashref';
+
+      defined $url
+          or croak 'Second argument of a URL must be provided';
+
+      if ( defined ( my $success = $result->{'success'} ) ) {
+          my $reason = $result->{'reason'} || '';
+          $reason .= ( defined $original ? " (request: $original)" : '' );
+
+          $success or croak "Failed to fetch '$url': $reason";
+      } else {
+          croak 'Missing success in return value';
+      }
+
+      defined ( my $content = $result->{'content'} )
+          or croak 'Missing content in return value';
+
+      eval { $decoded_result = decode_json $content; 1 }
+      or do { croak "Couldn't decode '$content': $@" };
+
+      return $decoded_result;
+  }
+
+  1;
+
+  __END__
+
+  =pod
+
+  =head1 NAME
+
+  MetaCPAN::API::Tiny - A Tiny API client for MetaCPAN
+
+  =head1 VERSION
+
+  version 1.131730
+
+  =head1 DESCRIPTION
+
+  This is the Tiny version of L<MetaCPAN::API>. It implements a compatible API
+  with a few notable exceptions:
+
+  =over 4
+
+  =item Attributes are direct hash access
+
+  The attributes defined using Mo(o|u)se are now accessed via the blessed hash
+  directly. There are no accessors defined to access this elements.
+
+  =item Exception handling
+
+  Instead of using Try::Tiny, raw evals are used. This could potentially cause
+  issues, so just be aware.
+
+  =item Testing
+
+  Test::Fatal was replaced with an eval implementation of exception().
+  Test::TinyMocker usage is retained, but may be absorbed since it is pure perl
+
+  =back
+
+  =head1 CLASS_METHODS
+
+  =head2 new
+
+  new is the constructor for MetaCPAN::API::Tiny. In the non-tiny version of this
+  module, this is provided via Any::Moose built from the attributes defined. In
+  the tiny version, we define our own constructor. It takes the same arguments
+  and provides similar checks to MetaCPAN::API with regards to arguments passed.
+
+  =head1 PUBLIC_METHODS
+
+  =head2 source
+
+      my $source = $mcpan->source(
+          author  => 'DOY',
+          release => 'Moose-2.0201',
+          path    => 'lib/Moose.pm',
+      );
+
+  Searches MetaCPAN for a module or a specific release and returns the plain source.
+
+  =head2 release
+
+      my $result = $mcpan->release( distribution => 'Moose' );
+
+      # or
+      my $result = $mcpan->release( author => 'DOY', release => 'Moose-2.0001' );
+
+  Searches MetaCPAN for a dist.
+
+  You can do complex searches using 'search' parameter:
+
+      # example lifted from MetaCPAN docs
+      my $result = $mcpan->release(
+          search => {
+              author => "OALDERS AND ",
+              filter => "status:latest",
+              fields => "name",
+              size   => 1,
+          },
+      );
+
+  =head2 pod
+
+      my $result = $mcpan->pod( module => 'Moose' );
+
+      # or
+      my $result = $mcpan->pod(
+          author  => 'DOY',
+          release => 'Moose-2.0201',
+          path    => 'lib/Moose.pm',
+      );
+
+  Searches MetaCPAN for a module or a specific release and returns the POD.
+
+  =head2 module
+
+      my $result = $mcpan->module('MetaCPAN::API');
+
+  Searches MetaCPAN and returns a module's ".pm" file.
+
+  =head2 file
+
+  A synonym of L</module>
+
+  =head2 author
+
+      my $result1 = $mcpan->author('XSAWYERX');
+      my $result2 = $mcpan->author( pauseid => 'XSAWYERX' );
+
+  Searches MetaCPAN for a specific author.
+
+  You can do complex searches using 'search' parameter:
+
+      # example lifted from MetaCPAN docs
+      my $result = $mcpan->author(
+          search => {
+              q    => 'profile.name:twitter',
+              size => 1,
+          },
+      );
+
+  =head2 fetch
+
+      my $result = $mcpan->fetch('/release/distribution/Moose');
+
+      # with parameters
+      my $more = $mcpan->fetch(
+          '/release/distribution/Moose',
+          param => 'value',
+      );
+
+  This is a helper method for API implementations. It fetches a path from MetaCPAN, decodes the JSON from the content variable and returns it.
+
+  You don't really need to use it, but you can in case you want to write your own extension implementation to MetaCPAN::API.
+
+  It accepts an additional hash as "GET" parameters.
+
+  =head2 post
+
+      # /release&content={"query":{"match_all":{}},"filter":{"prefix":{"archive":"Cache-Cache-1.06"}}}
+      my $result = $mcpan->post(
+          'release',
+          {
+              query  => { match_all => {} },
+              filter => { prefix => { archive => 'Cache-Cache-1.06' } },
+          },
+      );
+
+  The POST equivalent of the "fetch()" method. It gets the path and JSON request.
+
+  =head1 THANKS
+
+  Overall the tests and code were ripped directly from MetaCPAN::API and
+  tiny-fied. A big thanks to Sawyer X for writing the original module.
+
+  =head1 AUTHOR
+
+  Nicholas R. Perez <nperez at cpan.org>
+
+  =head1 COPYRIGHT AND LICENSE
+
+  This software is copyright (c) 2013 by Nicholas R. Perez <nperez at cpan.org>.
+
+  This is free software; you can redistribute it and/or modify it under
+  the same terms as the Perl 5 programming language system itself.
+
+  =cut
+METACPAN_API_TINY
+
+s/^  //mg for values %fatpacked;
+
+unshift @INC, sub {
+  if (my $fat = $fatpacked{$_[1]}) {
+    if ($] < 5.008) {
+      return sub {
+        return 0 unless length $fat;
+        $fat =~ s/^([^\n]*\n?)//;
+        $_ = $1;
+        return 1;
+      };
+    }
+    open my $fh, '<', \$fat
+      or die "FatPacker error loading $_[1] (could be a perl installation issue?)";
+    return $fh;
+  }
+  return
+};
+
+} # END OF FATPACK CODE
+
+
+use 5.010;
+use strict;
+use warnings;
+use Fatal qw(open close);
+
+use Getopt::Long;
+use Pod::Usage;
+use File::Basename;
+use Module::CoreList;
+use HTTP::Tiny;
+use Safe;
+use MetaCPAN::API::Tiny;
+
+# Below, 5.024 should be aligned with the version of perl actually
+# bundled in Buildroot:
+die <<"MSG" if $] < 5.024;
+This script needs a host perl with the same major version as Buildroot target perl.
+
+Your current host perl is:
+    $^X
+    version $]
+
+You may install a local one by running:
+    perlbrew install perl-5.24.0
+MSG
+
+my ($help, $man, $quiet, $force, $recommend, $test, $host);
+my $target = 1;
+GetOptions( 'help|?' => \$help,
+            'man' => \$man,
+            'quiet|q' => \$quiet,
+            'force|f' => \$force,
+            'host!' => \$host,
+            'target!' => \$target,
+            'recommend' => \$recommend,
+            'test' => \$test
+) or pod2usage(-exitval => 1);
+pod2usage(-exitval => 0) if $help;
+pod2usage(-exitval => 0, -verbose => 2) if $man;
+pod2usage(-exitval => 1) if scalar @ARGV == 0;
+
+my %dist;               # name -> metacpan data
+my %need_target;        # name -> 1 if target package is needed
+my %need_host;          # name -> 1 if host package is needed
+my %need_dlopen;        # name -> 1 if requires dynamic library
+my %deps_build;         # name -> list of host dependencies
+my %deps_runtime;       # name -> list of target dependencies
+my %deps_optional;      # name -> list of optional target dependencies
+my %license_files;      # name -> list of license files
+my %checksum;           # author -> list of checksum
+my $mirror = 'http://cpan.metacpan.org';        # a CPAN mirror
+my $mcpan = MetaCPAN::API::Tiny->new(base_url => 'http://fastapi.metacpan.org/v1');
+my $ua = HTTP::Tiny->new();
+
+sub get_checksum {
+    my ($url) = @_;
+    my($path) = $url =~ m|^[^:/?#]+://[^/?#]*([^?#]*)|;
+    my($basename, $dirname) = fileparse( $path );
+    unless ($checksum{$dirname}) {
+        my $url = $mirror . $dirname . q{CHECKSUMS};
+        my $response = $ua->get($url);
+        $checksum{$dirname} = $response->{content};
+    }
+    my $chksum = Safe->new->reval($checksum{$dirname});
+    return $chksum->{$basename}, $basename;
+}
+
+sub is_xs {
+    my ($manifest) = @_;
+    # This heuristic determines if a module is a native extension, by searching
+    # some file extension types in the MANIFEST of the distribution.
+    # It was inspired by http://deps.cpantesters.org/static/purity.html
+    return $manifest =~ m/\.(swg|xs|c|h|i)[\n\s]/;
+}
+
+sub find_license_files {
+    my ($manifest) = @_;
+    my @license_files;
+    foreach (split /\n/, $manifest) {
+        next if m|/|;
+        push @license_files, $_ if m/(ARTISTIC|COPYING|COPYRIGHT|LICENSE)/i;
+    }
+    if (scalar @license_files == 0 && $manifest =~ m/(README)[\n\s]/i) {
+        @license_files = ($1);
+    }
+    return \@license_files;
+}
+
+sub fetch {
+    my ($name, $need_target, $need_host, $top) = @_;
+    $need_target{$name} = $need_target if $need_target;
+    $need_host{$name} = $need_host if $need_host;
+    unless ($dist{$name} && !$top) {
+        say qq{fetch ${name}} unless $quiet;
+        my $result = $mcpan->release( distribution => $name );
+        $dist{$name} = $result;
+        my $manifest = $mcpan->source( author => $result->{author},
+                                       release => $name . q{-} . $result->{version},
+                                       path => 'MANIFEST' );
+        $need_dlopen{$name} = is_xs( $manifest );
+        $license_files{$name} = find_license_files( $manifest );
+        my %build = ();
+        my %runtime = ();
+        my %optional = ();
+        foreach my $dep (@{$result->{dependency}}) {
+            my $modname = ${$dep}{module};
+            next if $modname eq q{perl};
+            next if $modname =~ m|^Alien|;
+            next if $modname =~ m|^Win32|;
+            next if !($test && $top) && $modname =~ m|^Test|;
+            next if Module::CoreList::is_core( $modname, undef, $] );
+            # we could use the host Module::CoreList data, because host perl and
+            # target perl have the same major version
+            next if ${$dep}{phase} eq q{develop};
+            next if !($test && $top) && ${$dep}{phase} eq q{test};
+            my $distname = $mcpan->module( $modname )->{distribution};
+            if (${$dep}{phase} eq q{runtime}) {
+                if (${$dep}{relationship} eq q{requires}) {
+                    $runtime{$distname} = 1;
+                }
+                else {
+                    $optional{$distname} = 1 if $recommend && $top;
+                }
+            }
+            else { # configure, build
+                $build{$distname} = 1;
+            }
+        }
+        $deps_build{$name} = [keys %build];
+        $deps_runtime{$name} = [keys %runtime];
+        $deps_optional{$name} = [keys %optional];
+        foreach my $distname (@{$deps_build{$name}}) {
+            fetch( $distname, 0, 1 );
+        }
+        foreach my $distname (@{$deps_runtime{$name}}) {
+            fetch( $distname, $need_target, $need_host );
+            $need_dlopen{$name} ||= $need_dlopen{$distname};
+        }
+        foreach my $distname (@{$deps_optional{$name}}) {
+            fetch( $distname, $need_target, $need_host );
+        }
+    }
+    return;
+}
+
+foreach my $distname (@ARGV) {
+    # Command-line's distributions
+    fetch( $distname, !!$target, !!$host, 1 );
+}
+say scalar keys %dist, q{ packages fetched.} unless $quiet;
+
+# Buildroot package name: lowercase
+sub fsname {
+    my $name = shift;
+    $name =~ s|_|-|g;
+    return q{perl-} . lc $name;
+}
+
+# Buildroot variable name: uppercase
+sub brname {
+    my $name = shift;
+    $name =~ s|-|_|g;
+    return uc $name;
+}
+
+while (my ($distname, $dist) = each %dist) {
+    my $fsname = fsname( $distname );
+    my $dirname = q{package/} . $fsname;
+    my $cfgname = $dirname . q{/Config.in};
+    my $mkname = $dirname . q{/} . $fsname . q{.mk};
+    my $hashname = $dirname . q{/} . $fsname . q{.hash};
+    my $brname = brname( $fsname );
+    mkdir $dirname unless -d $dirname;
+    if ($need_target{$distname} && ($force || !-f $cfgname)) {
+        my $abstract = $dist->{abstract};
+        my $homepage = $dist->{resources}->{homepage} || qq{https://metacpan.org/release/${distname}};
+        say qq{write ${cfgname}} unless $quiet;
+        open my $fh, q{>}, $cfgname;
+        say {$fh} qq{config BR2_PACKAGE_${brname}};
+        say {$fh} qq{\tbool "${fsname}"};
+        say {$fh} qq{\tdepends on !BR2_STATIC_LIBS} if $need_dlopen{$distname};
+        foreach my $dep (sort @{$deps_runtime{$distname}}) {
+            my $brdep = brname( fsname( $dep ) );
+            say {$fh} qq{\tselect BR2_PACKAGE_${brdep}};
+        }
+        say {$fh} qq{\thelp};
+        say {$fh} qq{\t  ${abstract}\n} if $abstract;
+        say {$fh} qq{\t  ${homepage}};
+        if ($need_dlopen{$distname}) {
+            say {$fh} qq{\ncomment "${fsname} needs a toolchain w/ dynamic library"};
+            say {$fh} qq{\tdepends on BR2_STATIC_LIBS};
+        }
+        close $fh;
+    }
+    if ($force || !-f $mkname) {
+        my $version = $dist->{version};
+        my($path) = $dist->{download_url} =~ m|^[^:/?#]+://[^/?#]*([^?#]*)|;
+        # this URL contains only the scheme, auth and path parts (but no query and fragment parts)
+        # the scheme is not used, because the job is done by the BR download infrastructure
+        # the auth part is not used, because we use $(BR2_CPAN_MIRROR)
+        my($filename, $directories, $suffix) = fileparse( $path, q{tar.gz}, q{tgz} );
+        $directories =~ s|/$||;
+        my $dependencies = join q{ }, map( { q{host-} . fsname( $_ ); } sort @{$deps_build{$distname}} ),
+                                      map( { fsname( $_ ); } sort @{$deps_runtime{$distname}} );
+        my $host_dependencies = join q{ }, map { q{host-} . fsname( $_ ); } sort( @{$deps_build{$distname}},
+                                                                                  @{$deps_runtime{$distname}} );
+        my $license = ref $dist->{license} eq 'ARRAY'
+                    ? join q{ or }, @{$dist->{license}}
+                    : $dist->{license};
+        # BR requires license name as in http://spdx.org/licenses/
+        $license =~ s|apache_2_0|Apache-2.0|;
+        $license =~ s|artistic_2|Artistic-2.0|;
+        $license =~ s|mit|MIT|;
+        $license =~ s|openssl|OpenSSL|;
+        $license =~ s|perl_5|Artistic or GPL-1.0+|;
+        my $license_files = join q{ }, @{$license_files{$distname}};
+        say qq{write ${mkname}} unless $quiet;
+        open my $fh, q{>}, $mkname;
+        say {$fh} qq{################################################################################};
+        say {$fh} qq{#};
+        say {$fh} qq{# ${fsname}};
+        say {$fh} qq{#};
+        say {$fh} qq{################################################################################};
+        say {$fh} qq{};
+        say {$fh} qq{${brname}_VERSION = ${version}};
+        say {$fh} qq{${brname}_SOURCE = ${distname}-\$(${brname}_VERSION).${suffix}};
+        say {$fh} qq{${brname}_SITE = \$(BR2_CPAN_MIRROR)${directories}};
+        say {$fh} qq{${brname}_DEPENDENCIES = ${dependencies}} if $need_target{$distname} && $dependencies;
+        say {$fh} qq{HOST_${brname}_DEPENDENCIES = ${host_dependencies}} if $need_host{$distname} && $host_dependencies;
+        say {$fh} qq{${brname}_LICENSE = ${license}} if $license && $license ne q{unknown};
+        say {$fh} qq{${brname}_LICENSE_FILES = ${license_files}} if $license_files;
+        say {$fh} qq{};
+        foreach (sort @{$deps_optional{$distname}}) {
+            next if grep { $_ eq $distname; } @{$deps_runtime{$_}};     # avoid cyclic dependencies
+            my $opt_brname = brname( $_ );
+            my $opt_fsname = fsname( $_ );
+            say {$fh} qq{ifeq (\$(BR2_PACKAGE_PERL_${opt_brname}),y)};
+            say {$fh} qq{${brname}_DEPENDENCIES += ${opt_fsname}};
+            say {$fh} qq{endif};
+            say {$fh} qq{};
+        }
+        say {$fh} qq{\$(eval \$(perl-package))} if $need_target{$distname};
+        say {$fh} qq{\$(eval \$(host-perl-package))} if $need_host{$distname};
+        close $fh;
+    }
+    if ($force || !-f $hashname) {
+        my($checksum, $filename) = get_checksum($dist->{download_url});
+        my $md5 = $checksum->{md5};
+        my $sha256 = $checksum->{sha256};
+        say qq{write ${hashname}} unless $quiet;
+        open my $fh, q{>}, $hashname;
+        say {$fh} qq{# retrieved by scancpan from ${mirror}/};
+        say {$fh} qq{md5    ${md5} ${filename}};
+        say {$fh} qq{sha256 ${sha256} ${filename}};
+        close $fh;
+    }
+}
+
+my %pkg;
+my $cfgname = q{package/Config.in};
+if (-f $cfgname) {
+    open my $fh, q{<}, $cfgname;
+    while (<$fh>) {
+        chomp;
+        $pkg{$_} = 1 if m|package/perl-|;
+    }
+    close $fh;
+}
+
+foreach my $distname (keys %need_target) {
+    my $fsname = fsname( $distname );
+    $pkg{qq{\tsource "package/${fsname}/Config.in"}} = 1;
+}
+
+say qq{${cfgname} must contain the following lines:};
+say join qq{\n}, sort keys %pkg;
+
+__END__
+
+=head1 NAME
+
+support/scripts/scancpan Try-Tiny Moo
+
+=head1 SYNOPSIS
+
+supports/scripts/scancpan [options] [distname ...]
+
+ Options:
+   -help
+   -man
+   -quiet
+   -force
+   -target/-notarget
+   -host/-nohost
+   -recommend
+   -test
+
+=head1 OPTIONS
+
+=over 8
+
+=item B<-help>
+
+Prints a brief help message and exits.
+
+=item B<-man>
+
+Prints the manual page and exits.
+
+=item B<-quiet>
+
+Executes without output
+
+=item B<-force>
+
+Forces the overwriting of existing files.
+
+=item B<-target/-notarget>
+
+Switches package generation for the target variant (the default is C<-target>).
+
+=item B<-host/-nohost>
+
+Switches package generation for the host variant (the default is C<-nohost>).
+
+=item B<-recommend>
+
+Adds I<recommended> dependencies.
+
+=item B<-test>
+
+Adds dependencies for test.
+
+=back
+
+=head1 DESCRIPTION
+
+This script creates templates of the Buildroot package files for all the
+Perl/CPAN distributions required by the specified distnames. The
+dependencies and metadata are fetched from https://metacpan.org/.
+
+After running this script, it is necessary to check the generated files.
+You have to manually add the license files (PERL_FOO_LICENSE_FILES variable).
+For distributions that link against a target library, you have to add the
+buildroot package name for that library to the DEPENDENCIES variable.
+
+See the Buildroot documentation for details on the usage of the Perl
+infrastructure.
+
+The major version of the host perl must be aligned on the target one,
+in order to work with the right CoreList data.
+
+=head1 LICENSE
+
+Copyright (C) 2013-2016 by Francois Perrad <francois.perrad at gadz.org>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+This script is a part of Buildroot.
+
+This script requires the module C<MetaCPAN::API::Tiny> (version 1.131730)
+which was included at the beginning of this file by the tool C<fatpack>.
+
+See L<http://search.cpan.org/~nperez/MetaCPAN-API-Tiny-1.131730/>.
+
+See L<http://search.cpan.org/search?query=App-FatPacker&mode=dist>.
+
+These both libraries are free software and may be distributed under the same
+terms as perl itself.
+
+And perl may be distributed under the terms of Artistic v1 or GPL v1 license.
+
+=cut
-- 
2.11.0




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