/usr/share/perl5/Module/CPANTS/Kwalitee/Uses.pm is in libmodule-cpants-analyse-perl 0.95-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 | package Module::CPANTS::Kwalitee::Uses;
use warnings;
use strict;
use File::Spec::Functions qw(catfile);
use Module::ExtractUse 0.33;
use Set::Scalar qw();
use version;
our $VERSION = '0.95';
$VERSION = eval $VERSION; ## no critic
# These equivalents should be reasonably well-known and, preferably,
# well-documented. Don't add obscure modules used by only one person
# or a few people, to keep the list relatively small and to encourage
# people to use a better equivalent.
# "use_(strict|warnings)" should fail if someone feels the need
# to add "use $1;" in the modules.
our @STRICT_EQUIV = qw( strict );
our @WARNINGS_EQUIV = qw( warnings warnings::compat );
our @STRICT_WARNINGS_EQUIV = qw(
common::sense
Any::Moose
Catmandu::Sane Coat
Dancer
Mo
Modern::Perl
Moo Moo::Role
Moose Moose::Role Moose::Exporter
MooseX::Declare MooseX::Role::Parameterized MooseX::Types
Mouse Mouse::Role
perl5 perl5i::1 perl5i::2 perl5i::latest
Role::Tiny
strictures
);
# These modules require a flag to enforce strictness.
push @STRICT_WARNINGS_EQUIV, qw(
Mojo::Base
Spiffy
);
sub order { 100 }
##################################################################
# Analyse
##################################################################
sub analyse {
my $class=shift;
my $me=shift;
my $distdir=$me->distdir;
my $modules=$me->d->{modules};
my $files=$me->d->{files_hash};
# NOTE: all files in xt/ should be ignored because they are
# for authors only and their dependencies may not be (and
# often are not) listed in meta files.
my @tests=grep {m|^t\b.*\.t|} sort keys %$files;
$me->d->{test_files} = \@tests;
my @test_modules = map {
my $m = $_;
$m =~ s|\.pm$||;
$m =~ s|^t/(?:lib/)?||;
$m =~ s|/|::|g;
$m;
} grep {m|^t\b.*\.pm$|} keys %$files;
my %test_modules = map {$_ => 1} @test_modules;
my %skip=map {$_->{module}=>1 } @$modules;
my %uses;
# used in modules
foreach my $module (@$modules) {
my $combined = $class->_extract_use($me, $module->{file});
for my $key (keys %$combined) {
for my $mod (keys %{$combined->{$key}}) {
next if $skip{$mod};
$uses{$key.'_in_code'}{$mod} += $combined->{$key}{$mod};
}
}
}
# used in tests
foreach my $tf (@tests) {
my $combined = $class->_extract_use($me, $tf);
for my $key (keys %$combined) {
for my $mod (keys %{$combined->{$key}}) {
next if $mod =~ /^t::/;
next if $skip{$mod};
next if $test_modules{$mod};
$uses{$key.'_in_tests'}{$mod} += $combined->{$key}{$mod};
}
}
}
# used in Makefile.PL/Build.PL
foreach my $f (grep /\b(?:Makefile|Build)\.PL$/, @{$me->d->{files_array} || []}) {
my $combined = $class->_extract_use($me, $f);
for my $key (keys %$combined) {
for my $mod (keys %{$combined->{$key}}) {
next if $skip{$mod};
$uses{$key.'_in_config'}{$mod} += $combined->{$key}{$mod};
}
}
}
$me->d->{uses}=\%uses;
return;
}
sub _extract_use {
my ($class, $me, $path) = @_;
my $file = catfile($me->distdir, $path);
$file =~ s|\\|/|g;
return unless -f $file;
my $p = Module::ExtractUse->new;
$p->extract_use($file);
# used actually contains required/noed
my %used = %{ $p->used || {} };
my %required = %{ $p->required || {} };
my %noed = %{ $p->noed || {} };
my %combined;
for my $mod (keys %used) {
next if $mod =~ /::$/; # see RT#35092
next unless $mod =~ /^(?:v?5\.[0-9.]+|[A-za-z0-9:_]+)$/;
$combined{used}{$mod} += $used{$mod};
if (my $used_in_eval = $p->used_in_eval($mod)) {
$combined{used_in_eval}{$mod} += $used_in_eval;
$combined{used}{$mod} -= $used_in_eval;
}
if ($required{$mod}) {
$combined{used}{$mod} -= $required{$mod};
$combined{required}{$mod} += $required{$mod};
if (my $required_in_eval = $p->required_in_eval($mod)) {
$combined{used}{$mod} += $required_in_eval;
$combined{used_in_eval}{$mod} -= $required_in_eval;
$combined{required}{$mod} -= $required_in_eval;
$combined{required_in_eval}{$mod} += $required_in_eval;
}
}
if ($noed{$mod}) {
$combined{used}{$mod} -= $noed{$mod};
$combined{noed}{$mod} += $noed{$mod};
if (my $noed_in_eval = $p->noed_in_eval($mod)) {
$combined{used}{$mod} += $noed_in_eval;
$combined{used_in_eval}{$mod} -= $noed_in_eval;
$combined{noed}{$mod} -= $noed_in_eval;
$combined{noed_in_eval}{$mod} += $noed_in_eval;
}
}
for (qw/used used_in_eval required noed/) {
delete $combined{$_}{$mod} unless $combined{$_}{$mod};
}
}
for my $key (keys %combined) {
next unless %{$combined{$key}};
$me->d->{files_hash}{$path}{$key} = [sort keys %{$combined{$key}}];
}
return \%combined;
}
##################################################################
# Kwalitee Indicators
##################################################################
sub kwalitee_indicators {
return [
{
name=>'use_strict',
error=>q{This distribution does not 'use strict;' (or its equivalents) in all of its modules. Note that this is not about the actual strictness of the modules. It's bad if nobody can tell whether the modules are strictly written or not, without reading the source code of your favorite clever module that actually enforces strictness. In other words, it's bad if someone feels the need to add 'use strict' to your modules.},
remedy=>q{Add 'use strict' (or its equivalents) to all modules, or convince us that your favorite module is well-known enough and people can easily see the modules are strictly written.},
ignorable => 1,
code=>sub {
my $d = shift;
my $files = $d->{files_hash} || {};
# There are lots of acceptable strict alternatives
my $strict_equivalents = Set::Scalar->new->insert(@STRICT_EQUIV, @STRICT_WARNINGS_EQUIV);
my $perl_version_with_implicit_stricture = version->new('5.011')->numify;
my @no_strict;
for my $file (keys %$files) {
next unless exists $files->{$file}{module};
next if $files->{$file}{unreadable};
next if $file =~ /\.pod$/;
my $module = $files->{$file}{module};
my %used;
for my $key (qw/used required/) {
next unless exists $files->{$file}{$key};
$used{$_} = 1 for @{$files->{$file}{$key} || []};
}
next if grep {/^v?5\./ && version->parse($_)->numify >= $perl_version_with_implicit_stricture} keys %used;
push @no_strict, $module if $strict_equivalents
->intersection(Set::Scalar->new(keys %used))
->is_empty;
}
if (@no_strict) {
$d->{error}{use_strict} = join ", ", @no_strict;
return 0;
}
return 1;
},
details=>sub {
my $d = shift;
return "The following modules don't use strict (or equivalents): " . $d->{error}{use_strict};
},
},
{
name=>'use_warnings',
error=>q{This distribution does not 'use warnings;' (or its equivalents) in all of its modules. Note that this is not about that your modules actually warn when something bad happens. It's bad if nobody can tell if a module warns or not, without reading the source code of your favorite module that actually enforces warnings. In other words, it's bad if someone feels the need to add 'use warnings' to your modules.},
is_extra=>1,
ignorable => 1,
remedy=>q{Add 'use warnings' (or its equivalents) to all modules (this will require perl > 5.6), or convince us that your favorite module is well-known enough and people can easily see the modules warn when something bad happens.},
code=>sub {
my $d = shift;
my $files = $d->{files_hash} || {};
my $warnings_equivalents = Set::Scalar->new->insert(@WARNINGS_EQUIV, @STRICT_WARNINGS_EQUIV);
my @no_warnings;
for my $file (keys %$files) {
next unless exists $files->{$file}{module};
next if $files->{$file}{unreadable};
next if $file =~ /\.pod$/;
my $module = $files->{$file}{module};
my %used;
for my $key (qw/used required/) {
next unless exists $files->{$file}{$key};
$used{$_} = 1 for @{$files->{$file}{$key} || []};
}
push @no_warnings, $module if $warnings_equivalents
->intersection(Set::Scalar->new(keys %used))
->is_empty;
}
if (@no_warnings) {
$d->{error}{use_warnings} = join ", ", @no_warnings;
return 0;
}
return 1;
},
details=>sub {
my $d = shift;
return "The following modules don't use warnings (or equivalents): " . $d->{error}{use_warnings};
},
},
];
}
q{Favourite record of the moment:
Fat Freddys Drop: Based on a true story};
__END__
=encoding UTF-8
=head1 NAME
Module::CPANTS::Kwalitee::Uses - Checks which modules are used
=head1 SYNOPSIS
Check which modules are actually used in the code.
=head1 DESCRIPTION
=head2 Methods
=head3 order
Defines the order in which Kwalitee tests should be run.
Returns C<100>.
=head3 analyse
C<MCK::Uses> uses C<Module::ExtractUse> to find all C<use> statements in code (actual code and tests).
=head3 kwalitee_indicators
Returns the Kwalitee Indicators datastructure.
=over
=item * use_strict
=item * use_warnings
=back
=head1 SEE ALSO
L<Module::CPANTS::Analyse>
=head1 AUTHOR
L<Thomas Klausner|https://metacpan.org/author/domm>
=head1 COPYRIGHT AND LICENSE
Copyright © 2003–2006, 2009 L<Thomas Klausner|https://metacpan.org/author/domm>
You may use and distribute this module according to the same terms
that Perl is distributed under.
|