/usr/bin/scan-perl-prereqs is in libperl-prereqscanner-perl 1.023-1.
This file is owned by root:root, with mode 0o755.
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 | #!/usr/bin/perl
eval 'exec /usr/bin/perl -S $0 ${1+"$@"}'
if 0; # not running under some shell
package Perl::PrereqScanner::App;
# ABSTRACT: scan your working dir for likely prereqs
$Perl::PrereqScanner::App::VERSION = '1.023';
use strict;
use warnings;
use lib ();
use File::Find;
use List::Util qw{ max };
use Perl::PrereqScanner;
use CPAN::Meta::Requirements ();
use Scalar::Util qw(looks_like_number);
use Getopt::Long::Descriptive;
my ($opt, $usage) = describe_options(
'scan-perl-prereqs %o [DIR|FILES]',
[ 'pretty' => 'format for human consumption, not toolchain' ],
[ 'by-file' => 'emit one stanza per file' ],
[ 'lib|I=s@' => 'specifies include paths, like perl\'s -I' ],
[ 'version' => 'print usage message and exit' ],
[ 'help' => 'print version and exit' ],
);
lib->import(@{ $opt->lib }) if $opt->lib;
print('scan-perl-prereqs v' . (Perl::PrereqScanner->VERSION || 'DEV') . "\n")
if $opt->version;
print($usage->text) if $opt->help;
exit if $opt->version or $opt->help;
foreach my $file ( @ARGV ? @ARGV : '.' ) {
-d $file ? scan_dir( $file ) : scan_file( $file );
}
my %result;
sub scan_dir {
find( {
no_chdir => 1,
wanted => sub { scan_file($_) if /\.(pl|PL|pm|cgi|psgi|t)$/ && -f $_ }
}, shift );
}
sub scan_file {
my $file = shift;
my $key = $opt->by_file ? $file : '';
$result{ $key } ||= CPAN::Meta::Requirements->new;
$result{ $key }->add_requirements(
Perl::PrereqScanner->new->scan_file($file)
);
}
for my $file (sort keys %result) {
print "## $file\n" if length $file and keys(%result) > 1;
print_prereqs($result{$file});
}
sub print_prereqs {
my $prereqs = shift->as_string_hash;
if( $opt->pretty ) {
my $max = max map { length } keys %$prereqs;
printf( "%-${max}s = %s\n", $_, $prereqs->{$_} )
for sort keys %$prereqs;
} else {
### FIXME grossly insufficient filtering, should refactor/backport
### filtering from Dist::Zilla::Plugin::AutoPrereqs or something
foreach ( sort keys %$prereqs ) {
next if $_ eq 'perl';
my $v = $prereqs->{$_} || 0;
$v = qq{"$v"} unless looks_like_number($v);
print($v eq '0' ? qq{$_\n} : qq{$_~$v\n});
}
}
}
exit;
#pod =head1 SYNOPSIS
#pod
#pod scan-perl-prereqs [--by-file] [--pretty] [DIRS | FILES]
#pod
#pod Directories are traversed with L<File::Find> to collect all C<.pl>, C<.pm>,
#pod C<.psgi> and C<.t> files. If no directories or files are specified, the current
#pod working directory is scanned.
#pod
#pod The default is to print a single combined list suitable for piping to C<cpanm>
#pod or similar tools.
#pod
#pod The C<--by-file> switch will print results grouped by the files in which they
#pod were found.
#pod
#pod The C<--pretty> swith will print results in a more human-friendly format, with
#pod names and versions vertically aligned.
#pod
#pod =cut
__END__
=pod
=encoding UTF-8
=head1 NAME
Perl::PrereqScanner::App - scan your working dir for likely prereqs
=head1 VERSION
version 1.023
=head1 SYNOPSIS
scan-perl-prereqs [--by-file] [--pretty] [DIRS | FILES]
Directories are traversed with L<File::Find> to collect all C<.pl>, C<.pm>,
C<.psgi> and C<.t> files. If no directories or files are specified, the current
working directory is scanned.
The default is to print a single combined list suitable for piping to C<cpanm>
or similar tools.
The C<--by-file> switch will print results grouped by the files in which they
were found.
The C<--pretty> swith will print results in a more human-friendly format, with
names and versions vertically aligned.
=head1 AUTHORS
=over 4
=item *
Jerome Quelin
=item *
Ricardo Signes <rjbs@cpan.org>
=back
=head1 COPYRIGHT AND LICENSE
This software is copyright (c) 2009 by Jerome Quelin.
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
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