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|
use strict;
use warnings;
# FILENAME: metacpan.pm
# CREATED: 25/10/11 00:29:25 by Kent Fredric (kentnl) <kentfredric@gmail.com>
# ABSTRACT: A thin shim wrapper for metacpan::api with caching.
#
package metacpan;
use File::Spec;
use Sub::Exporter -setup => { exports => ['mcpan'], };
my $mcpan;
sub mcpan {
$mcpan ||= do {
require CHI;
my $cache = CHI->new(
driver => 'File',
root_dir => File::Spec->catdir( File::Spec->tmpdir, 'gentoo-metacpan-cache' ),
);
require WWW::Mechanize::Cached;
my $mech;
if ( defined $ENV{WWW_MECH_NOCACHE} ) {
$mech = LWP::UserAgent->new();
} else {
$mech = WWW::Mechanize::Cached->new(
cache => $cache,
timeout => 20000,
autocheck => 1,
);
}
if ( defined $ENV{WWW_MECH_DEBUG} ) {
$mech->add_handler("request_send", sub { warn shift->dump ; return });
$mech->add_handler("response_done", sub {
if( $ENV{WWW_MECH_DEBUG} > 1 ){
warn shift->content;
} else {
warn shift->dump;
}
return;
});
}
require HTTP::Tiny::Mech;
my $tinymech = HTTP::Tiny::Mech->new( mechua => $mech );
require MetaCPAN::API;
MetaCPAN::API->new( ua => $tinymech );
}
}
#
# ->find_dist_all( $module::name , \%opts ) # returns an array of results.
#
# $opts{notrim} = 1 to skip the postprocessing filter that eliminates false matches.
#
# $opts{mangle} = sub {
# my $query = shift;
# # You can optionally do this to modify the query before it is performed.
# };
#
# Array items are each a subset of a 'file' entry which contains information
# about the distribution that file was in.
#
# each 'file' entry will have at least one 'file.module' entry that conforms to
#
# module.name == $module::name && module.authorized == true && module.indexed == true
#
# Essentially returning exactly what CPAN does.
#
sub find_dist_all {
my ( $class, $module, $opts ) = @_;
my @wanted_terms = (
{ term => { 'file.module.authorized' => 1 } },
{ term => { 'file.module.indexed' => 1 } },
{ term => { 'file.module.name' => $module } },
);
my @unwanted_terms = ( { terms => { 'file.distribution' => [qw( libwww-perl HTTP-Message )] } } );
my $simple_filter = { bool => { must => [@wanted_terms] } };
my $nested_filer = {
nested => {
path => 'file.module',
query => { bool => { must => [@wanted_terms] } },
}
};
my $query_nondirs = { term => { directory => 0 } };
my $fields = [
'status', 'date', 'author', 'maturity', 'indexed', 'documentation',
'id', '_source.module', 'authorized', 'release_id', 'version', 'name',
'release', 'path', 'version_numified', '_source.stat', 'distribution', 'level',
'sloc', 'abstract', 'slop', 'mime'
];
my $q = {
query => $query_nondirs,
filter => $simple_filter,
fields => $fields,
sort => { 'file.date' => 'desc' },
size => 9999,
};
if ( $opts->{mangle} ) {
$opts->{mangle}->( $q, );
}
my $results = mcpan->post( "file/_search" => $q );
if ( not $opts->{notrim} ) {
$results->{hits}->{hits} = [ grep { _skip_result( $_, $module ) } @{ $results->{hits}->{hits} } ];
}
return map { $_->{fields} } @{ $results->{hits}->{hits} };
}
# ->find_dist_simple( $module::name , \%opts ) # returns an array of results.
#
# A convenience wrapper around find_dist_all
#
# Adds 3 records not already in metacpan to the result for conveninece.
#
# $record{mod_path} = "AUTHOR/Release-Name-1.2.3-TRIAL/lib/path/to/module.pm"
# $record{mod} = [ "path::to::module" , "1.9.9" ]
#
# $record{as_string} = "path::to::module 1.9.9 in AUTHOR/Release-Name-1.2.3-TRIAL/lib/path/to/module.pm"
#
#
sub find_dist_simple {
my ( $class, $module, $opts ) = @_;
return map {
my $i = $_;
my ( $j ) = grep { $_->{name} eq $module } @{ $i->{'_source.module'} };
my $x = {
%{$i},
mod_path => ( sprintf q{%s/%s/%s}, $i->{author}, $i->{release}, $i->{path} ),
mod => [ $j->{name}, $j->{version} ],
};
$x->{as_string} = $j->{name} . ' ' . ($j->{version}//'') . ' in ' . $x->{mod_path};
$x;
} $class->find_dist_all( $module, $opts );
}
sub _skip_result {
my ( $result, $module ) = @_;
return 1 if not $result->{fields};
return 1 if not $result->{fields}->{'_source.module'};
for my $package ( @{ $result->{fields}->{'_source.module'} } ) {
return
if $package->{name} eq $module
and ( ( not $package->{authorized} ) or ( not $package->{indexed} ) );
}
return 1;
}
#
# ->find_release( 'DOY' , 'Moose-2.0301-TRIAL' )
#
# Returns the content of a /release/ entry matching that criteria.
#
# Will return an array just in case there's more than one, but its not likely.
#
sub find_release {
my ( $class, $author, $distrelease , $opts ) = @_ ;
my @terms = (
{ term => { author => $author } },
{ term => { name => $distrelease } },
);
my $filter = { filter => { and => [
@terms
]}};
my $q = {
explain => 1,
query => { constant_score => $filter },
};
my @query = (
"release/_search" => $q
);
if ( $opts->{mangle} ) {
$opts->{mangle}->( $q, );
}
my $results = mcpan->post(@query);
return map { $_->{_source} } @{ $results->{hits}->{hits} };
}
1;
|
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