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#!/usr/bin/perl # # Copyright © 1999 Roderick Schertler # Copyright © 2002 Wichert Akkerman <wakkerma@debian.org> # Copyright © 2006-2009, 2011-2015 Guillem Jover <guillem@debian.org> # # 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, see <https://www.gnu.org/licenses/>. use strict; use warnings; use Getopt::Long qw(:config posix_default bundling_values no_ignorecase); use List::Util qw(any); use File::Find; use Dpkg (); use Dpkg::Gettext; use Dpkg::ErrorHandling; use Dpkg::Control; use Dpkg::Checksums; use Dpkg::Compression::FileHandle; use Dpkg::Compression; textdomain('dpkg-dev'); # Hash of lists. The constants below describe what is in the lists. my %override; use constant { O_PRIORITY => 0, O_SECTION => 1, O_MAINT_FROM => 2, # undef for non-specific, else listref O_MAINT_TO => 3, # undef if there's no maint override }; my %extra_override; my %priority = ( 'extra' => 1, 'optional' => 2, 'standard' => 3, 'important' => 4, 'required' => 5, ); # Switches my $debug = 0; my $no_sort = 0; my $src_override = undef; my $extra_override_file = undef; my @sources; my @option_spec = ( 'debug!' => \$debug, 'help|?' => sub { usage(); exit 0; }, 'version' => sub { version(); exit 0; }, 'no-sort|n' => \$no_sort, 'source-override|s=s' => \$src_override, 'extra-override|e=s' => \$extra_override_file, ); sub version { printf g_("Debian %s version %s.\n"), $Dpkg::PROGNAME, $Dpkg::PROGVERSION; } sub usage { printf g_( "Usage: %s [<option>...] <binary-path> [<override-file> [<path-prefix>]] > Sources Options: -n, --no-sort don't sort by package before outputting. -e, --extra-override <file> use extra override file. -s, --source-override <file> use file for additional source overrides, default is regular override file with .src appended. --debug turn debugging on. -?, --help show this help message. --version show the version. See the man page for the full documentation. "), $Dpkg::PROGNAME; } sub load_override { my $file = shift; local $_; my $comp_file = Dpkg::Compression::FileHandle->new(filename => $file); while (<$comp_file>) { s/#.*//; next if /^\s*$/; s/\s+$//; my @data = split ' ', $_, 4; unless (@data == 3 || @data == 4) { warning(g_('invalid override entry at line %d (%d fields)'), $., 0 + @data); next; } my ($package, $priority, $section, $maintainer) = @data; if (exists $override{$package}) { warning(g_('ignoring duplicate override entry for %s at line %d'), $package, $.); next; } if (!$priority{$priority}) { warning(g_('ignoring override entry for %s, invalid priority %s'), $package, $priority); next; } $override{$package} = []; $override{$package}[O_PRIORITY] = $priority; $override{$package}[O_SECTION] = $section; if (!defined $maintainer) { # do nothing } elsif ($maintainer =~ /^(.*\S)\s*=>\s*(.*)$/) { $override{$package}[O_MAINT_FROM] = [split m{\s*//\s*}, $1]; $override{$package}[O_MAINT_TO] = $2; } else { $override{$package}[O_MAINT_TO] = $maintainer; } } close($comp_file); } sub load_src_override { my ($user_file, $regular_file) = @_; my ($file); local $_; if (defined $user_file) { $file = $user_file; } elsif (defined $regular_file) { my $comp = compression_guess_from_filename($regular_file); if (defined($comp)) { $file = $regular_file; my $ext = compression_get_file_extension($comp); $file =~ s/\.$ext$/.src.$ext/; } else { $file = "$regular_file.src"; } return unless -e $file; } else { return; } debug(1, "source override file $file"); my $comp_file = Dpkg::Compression::FileHandle->new(filename => $file); while (<$comp_file>) { s/#.*//; next if /^\s*$/; s/\s+$//; my @data = split ' '; unless (@data == 2) { warning(g_('invalid source override entry at line %d (%d fields)'), $., 0 + @data); next; } my ($package, $section) = @data; my $key = "source/$package"; if (exists $override{$key}) { warning(g_('ignoring duplicate source override entry for %s at line %d'), $package, $.); next; } $override{$key} = []; $override{$key}[O_SECTION] = $section; } close($comp_file); } sub load_override_extra { my $extra_override = shift; my $comp_file = Dpkg::Compression::FileHandle->new(filename => $extra_override); while (<$comp_file>) { s/\#.*//; s/\s+$//; next unless $_; my ($p, $field, $value) = split(/\s+/, $_, 3); $extra_override{$p}{$field} = $value; } close($comp_file); } # Given PREFIX and DSC-FILE, process the file and returns the fields. sub process_dsc { my ($prefix, $file) = @_; my $basename = $file; my $dir = ($basename =~ s{^(.*)/}{}) ? $1 : ''; $dir = "$prefix$dir"; $dir =~ s{/+$}{}; $dir = '.' if $dir eq ''; # Parse ‘.dsc’ file. my $fields = Dpkg::Control->new(type => CTRL_PKG_SRC); $fields->load($file); $fields->set_options(type => CTRL_INDEX_SRC); # Get checksums my $checksums = Dpkg::Checksums->new(); $checksums->add_from_file($file, key => $basename); $checksums->add_from_control($fields, use_files_for_md5 => 1); my $source = $fields->{Source}; my @binary = split /\s*,\s*/, $fields->{Binary} // ''; error(g_('no binary packages specified in %s'), $file) unless (@binary); # Rename the source field to package. $fields->{Package} = $fields->{Source}; delete $fields->{Source}; # The priority for the source package is the highest priority of the # binary packages it produces. my @binary_by_priority = sort { ($override{$a} ? $priority{$override{$a}[O_PRIORITY]} : 0) <=> ($override{$b} ? $priority{$override{$b}[O_PRIORITY]} : 0) } @binary; my $priority_override = $override{$binary_by_priority[-1]}; my $priority = $priority_override ? $priority_override->[O_PRIORITY] : undef; $fields->{Priority} = $priority if defined $priority; # For the section override, first check for a record from the source # override file, else use the regular override file. my $section_override = $override{"source/$source"} || $override{$source}; my $section = $section_override ? $section_override->[O_SECTION] : undef; $fields->{Section} = $section if defined $section; # For the maintainer override, use the override record for the first # binary. Modify the maintainer if necessary. my $maintainer_override = $override{$binary[0]}; if ($maintainer_override && defined $maintainer_override->[O_MAINT_TO]) { if (!defined $maintainer_override->[O_MAINT_FROM] || any { $fields->{Maintainer} eq $_ } @{ $maintainer_override->[O_MAINT_FROM] }) { $fields->{Maintainer} = $maintainer_override->[O_MAINT_TO]; } } # Process extra override if (exists $extra_override{$source}) { my ($field, $value); while (($field, $value) = each %{$extra_override{$source}}) { $fields->{$field} = $value; } } # A directory field will be inserted just before the files field. $fields->{Directory} = $dir; $checksums->export_to_control($fields, use_files_for_md5 => 1); push @sources, $fields; } ### Main { local $SIG{__WARN__} = sub { usageerr($_[0]) }; GetOptions(@option_spec); } usageerr(g_('one to three arguments expected')) if @ARGV < 1 or @ARGV > 3; push @ARGV, undef if @ARGV < 2; push @ARGV, '' if @ARGV < 3; my ($dir, $override, $prefix) = @ARGV; report_options(debug_level => $debug); load_override $override if defined $override; load_src_override $src_override, $override; load_override_extra $extra_override_file if defined $extra_override_file; my @dsc; my $scan_dsc = sub { push @dsc, $File::Find::name if m/\.dsc$/; }; find({ follow => 1, follow_skip => 2, wanted => $scan_dsc }, $dir); foreach my $fn (@dsc) { # FIXME: Fix it instead to not die on syntax and general errors? eval { process_dsc($prefix, $fn); }; if ($@) { warn $@; next; } } if (not $no_sort) { @sources = sort { $a->{Package} . $a->{Version} cmp $b->{Package} . $b->{Version} } @sources; } foreach my $dsc (@sources) { $dsc->output(\*STDOUT); print "\n"; }