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# infofiles -- lintian check script -*- perl -*-
# Copyright (C) 1998 Christian Schwarz
# Copyright (C) 2001 Josip Rodin
#
# 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 http://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::infofiles;
use strict;
use warnings;
use autodie;
use Lintian::Tags qw(tag);
use Lintian::Util qw(open_gz normalize_pkg_path);
sub run {
my (undef, undef, $info) = @_;
my $info_dir = $info->index_resolved_path('usr/share/info/');
return if not $info_dir;
# Read package contents...
foreach my $file ($info_dir->children('breadth-first')) {
# NB: file_info can be undef (e.g. symlinks)
my $file_info = $file->file_info // '';
my $fname = $file->basename;
next unless $file->is_symlink or $file->is_file;
# Ignore dir files. That's a different error which we already catch in
# the files check.
next if $fname =~ /^dir(?:\.old)?(?:\.gz)?/;
# Analyze the file names making sure the documents are named
# properly. Note that Emacs 22 added support for images in
# info files, so we have to accept those and ignore them.
# Just ignore .png files for now.
my @fname_pieces = split /\./, $fname;
my $ext = pop @fname_pieces;
if ($ext eq 'gz') { # ok!
if ($file->is_file) {
# compressed with maximum compression rate?
if ($file_info !~ m/gzip compressed data/o) {
tag 'info-document-not-compressed-with-gzip', $file;
} else {
if ($file_info !~ m/max compression/o) {
tag
'info-document-not-compressed-with-max-compression',
$file;
}
}
}
} elsif ($ext =~ m/^(?:png|jpe?g)$/) {
next;
} else {
push(@fname_pieces, $ext);
tag 'info-document-not-compressed', $file;
}
my $infoext = pop @fname_pieces;
unless ($infoext && $infoext =~ /^info(-\d+)?$/) { # it's not foo.info
unless (!@fname_pieces) {
# it's not foo{,-{1,2,3,...}}
tag 'info-document-has-wrong-extension', $file;
}
}
# If this is the main info file (no numeric extension). make
# sure it has appropriate dir entry information.
if ($fname !~ /-\d+\.gz/ && $file_info =~ /gzip compressed data/) {
if (!$file->is_open_ok) {
# unsafe symlink, skip. Actually, this should never
# be true as "$file_info" for symlinks will not be
# "gzip compressed data". But for good measure.
next;
}
my $fd = $file->open_gz;
local $_;
my ($section, $start, $end);
while (<$fd>) {
$section = 1 if /^INFO-DIR-SECTION\s+\S/;
$start = 1 if /^START-INFO-DIR-ENTRY\b/;
$end = 1 if /^END-INFO-DIR-ENTRY\b/;
}
close($fd);
tag 'info-document-missing-dir-section', $file unless $section;
tag 'info-document-missing-dir-entry', $file unless $start && $end;
}
# Check each [image src=""] form in the info files. The src
# filename should be in the package. As of Texinfo 5 it will
# be something.png or something.jpg, but that's not enforced.
#
# See Texinfo manual (info "(texinfo)Info Format Image") for
# details of the [image] form. Bytes \x00,\x08 introduce it
# (and distinguishes it from [image] appearing as plain text).
#
# String src="..." part has \" for literal " and \\ for
# literal \, though that would be unlikely in filenames. For
# the tag() message show $src unbackslashed since that's the
# filename sought.
#
if ($file->is_file && $fname =~ /\.info(?:-\d+)?\.gz$/) {
my $fd = $file->open_gz;
while (my $line = <$fd>) {
while ($line =~ /[\0][\b]\[image src="((?:\\.|[^\"])+)"/smg) {
my $src = $1;
$src =~ s/\\(.)/$1/g; # unbackslash
$info->index(normalize_pkg_path('usr/share/info', $src))
or tag 'info-document-missing-image-file', $file, $src;
}
}
close($fd);
}
}
return;
}
1;
# Local Variables:
# indent-tabs-mode: nil
# cperl-indent-level: 4
# End:
# vim: syntax=perl sw=4 sts=4 sr et
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