diff options
Diffstat (limited to 'lib/Lintian/Check/Languages/Perl/Perl4/Prerequisites.pm')
-rw-r--r-- | lib/Lintian/Check/Languages/Perl/Perl4/Prerequisites.pm | 124 |
1 files changed, 124 insertions, 0 deletions
diff --git a/lib/Lintian/Check/Languages/Perl/Perl4/Prerequisites.pm b/lib/Lintian/Check/Languages/Perl/Perl4/Prerequisites.pm new file mode 100644 index 0000000..fb5e9be --- /dev/null +++ b/lib/Lintian/Check/Languages/Perl/Perl4/Prerequisites.pm @@ -0,0 +1,124 @@ +# languages/perl/perl4/prerequisites -- lintian check script -*- perl -*- +# +# Copyright (C) 1998 Richard Braakman +# Copyright (C) 2002 Josip Rodin +# Copyright (C) 2016-2019 Chris Lamb <lamby@debian.org> +# Copyright (C) 2021 Felix Lechner +# +# 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, you can find it on the World Wide +# Web at https://www.gnu.org/copyleft/gpl.html, or write to the Free +# Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, +# MA 02110-1301, USA. + +package Lintian::Check::Languages::Perl::Perl4::Prerequisites; + +use v5.20; +use warnings; +use utf8; + +use Const::Fast; +use File::Basename; +use Unicode::UTF8 qw(encode_utf8); + +use Lintian::Relation; + +use Moo; +use namespace::clean; + +with 'Lintian::Check'; + +# check for obsolete perl libraries +const my $PERL4_PREREQUISITES => + 'libperl4-corelibs-perl:any | perl:any (<< 5.12.3-7)'; + +has satisfies_perl4_prerequisites => ( + is => 'rw', + lazy => 1, + default => sub { + my ($self) = @_; + + return $self->processable->relation('strong') + ->satisfies($PERL4_PREREQUISITES); + } +); + +sub visit_installed_files { + my ($self, $item) = @_; + + # Consider /usr/src/ scripts as "documentation" + # - packages containing /usr/src/ tend to be "-source" .debs + # and usually come with overrides + # no checks necessary at all for scripts in /usr/share/doc/ + # unless they are examples + return + if ($item->name =~ m{^usr/share/doc/} || $item->name =~ m{^usr/src/}) + && $item->name !~ m{^usr/share/doc/[^/]+/examples/}; + + return + unless length $item->interpreter; + + my $basename = basename($item->interpreter); + return + unless $basename eq 'perl'; + + return + unless $item->is_open_ok; + + open(my $fd, '<', $item->unpacked_path) + or die encode_utf8('Cannot open ' . $item->unpacked_path); + + my $position = 1; + while (my $line = <$fd>) { + if ( + $line =~m{ (?:do|require)\s+['"] # do/require + + # Huge list of perl4 modules... + (abbrev|assert|bigfloat|bigint|bigrat + |cacheout|complete|ctime|dotsh|exceptions + |fastcwd|find|finddepth|flush|getcwd|getopt + |getopts|hostname|importenv|look|newgetopt + |open2|open3|pwd|shellwords|stat|syslog + |tainted|termcap|timelocal|validate) + # ... so they end with ".pl" rather than ".pm" + \.pl['"] + }xsm + ) { + + my $module = "$1.pl"; + + my $pointer = $item->pointer($position); + + $self->pointed_hint( + 'script-uses-perl4-libs-without-dep',$pointer, + "(does not satisfy $PERL4_PREREQUISITES)",$module + ) unless $self->satisfies_perl4_prerequisites; + + } + + } continue { + ++$position; + } + + close $fd; + + return; +} + +1; + +# Local Variables: +# indent-tabs-mode: nil +# cperl-indent-level: 4 +# End: +# vim: syntax=perl sw=4 sts=4 sr et |