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-rwxr-xr-xscripts/dpkg-source.pl671
1 files changed, 671 insertions, 0 deletions
diff --git a/scripts/dpkg-source.pl b/scripts/dpkg-source.pl
new file mode 100755
index 0000000..63caeb2
--- /dev/null
+++ b/scripts/dpkg-source.pl
@@ -0,0 +1,671 @@
+#!/usr/bin/perl
+#
+# dpkg-source
+#
+# Copyright © 1996 Ian Jackson <ijackson@chiark.greenend.org.uk>
+# Copyright © 1997 Klee Dienes <klee@debian.org>
+# Copyright © 1999-2003 Wichert Akkerman <wakkerma@debian.org>
+# Copyright © 1999 Ben Collins <bcollins@debian.org>
+# Copyright © 2000-2003 Adam Heath <doogie@debian.org>
+# Copyright © 2005 Brendan O'Dea <bod@debian.org>
+# Copyright © 2006-2008 Frank Lichtenheld <djpig@debian.org>
+# Copyright © 2006-2009,2012 Guillem Jover <guillem@debian.org>
+# Copyright © 2008-2011 Raphaël Hertzog <hertzog@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 List::Util qw(any none);
+use Cwd;
+use File::Basename;
+use File::Spec;
+
+use Dpkg ();
+use Dpkg::Gettext;
+use Dpkg::ErrorHandling;
+use Dpkg::Arch qw(:operators);
+use Dpkg::Deps;
+use Dpkg::Compression;
+use Dpkg::Conf;
+use Dpkg::Control::Info;
+use Dpkg::Control::Tests;
+use Dpkg::Control::Fields;
+use Dpkg::Substvars;
+use Dpkg::Version;
+use Dpkg::Vars;
+use Dpkg::Changelog::Parse;
+use Dpkg::Source::Format;
+use Dpkg::Source::Package qw(get_default_diff_ignore_regex
+ set_default_diff_ignore_regex
+ get_default_tar_ignore_pattern);
+use Dpkg::Vendor qw(run_vendor_hook);
+
+textdomain('dpkg-dev');
+
+my $controlfile;
+my $changelogformat;
+
+my $build_format;
+my %options = (
+ # Ignore files
+ tar_ignore => [],
+ diff_ignore_regex => '',
+ # Misc options
+ copy_orig_tarballs => 1,
+ no_check => 0,
+ no_overwrite_dir => 1,
+ require_valid_signature => 0,
+ require_strong_checksums => 0,
+);
+
+# Fields to remove/override
+my %remove;
+my %override;
+
+my $substvars = Dpkg::Substvars->new();
+my $tar_ignore_default_pattern_done;
+my $diff_ignore_regex = get_default_diff_ignore_regex();
+
+my @options;
+my @cmdline_options;
+while (@ARGV && $ARGV[0] =~ m/^-/) {
+ my $arg = shift @ARGV;
+
+ if ($arg eq '-b' or $arg eq '--build') {
+ setopmode('build');
+ } elsif ($arg eq '-x' or $arg eq '--extract') {
+ setopmode('extract');
+ } elsif ($arg eq '--before-build') {
+ setopmode('before-build');
+ } elsif ($arg eq '--after-build') {
+ setopmode('after-build');
+ } elsif ($arg eq '--commit') {
+ setopmode('commit');
+ } elsif ($arg eq '--print-format') {
+ setopmode('print-format');
+ report_options(info_fh => \*STDERR); # Avoid clutter on STDOUT
+ } else {
+ push @options, $arg;
+ }
+}
+
+my $dir;
+if (defined($options{opmode}) &&
+ $options{opmode} =~ /^(build|print-format|(before|after)-build|commit)$/) {
+ if (not scalar(@ARGV)) {
+ usageerr(g_('--%s needs a directory'), $options{opmode})
+ unless $1 eq 'commit';
+ $dir = '.';
+ } else {
+ $dir = File::Spec->catdir(shift(@ARGV));
+ }
+ stat($dir) or syserr(g_('cannot stat directory %s'), $dir);
+ if (not -d $dir) {
+ error(g_('directory argument %s is not a directory'), $dir);
+ }
+ if ($dir eq '.') {
+ # . is never correct, adjust automatically
+ $dir = basename(getcwd());
+ chdir '..' or syserr(g_("unable to chdir to '%s'"), '..');
+ }
+ # --format options are not allowed, they would take precedence
+ # over real command line options, debian/source/format should be used
+ # instead
+ # --unapply-patches is only allowed in local-options as it's a matter
+ # of personal taste and the default should be to keep patches applied
+ my $forbidden_opts_re = {
+ 'options' => qr/^--(?:format=|unapply-patches$|abort-on-upstream-changes$)/,
+ 'local-options' => qr/^--format=/,
+ };
+ foreach my $filename ('local-options', 'options') {
+ my $conf = Dpkg::Conf->new();
+ my $optfile = File::Spec->catfile($dir, 'debian', 'source', $filename);
+ next unless -f $optfile;
+ $conf->load($optfile);
+ $conf->filter(remove => sub { $_[0] =~ $forbidden_opts_re->{$filename} });
+ if (@$conf) {
+ info(g_('using options from %s: %s'), $optfile, join(' ', @$conf))
+ unless $options{opmode} eq 'print-format';
+ unshift @options, @$conf;
+ }
+ }
+}
+
+while (@options) {
+ $_ = shift(@options);
+ if (m/^--format=(.*)$/) {
+ $build_format //= $1;
+ } elsif (m/^-(?:Z|-compression=)(.*)$/) {
+ my $compression = $1;
+ $options{compression} = $compression;
+ usageerr(g_('%s is not a supported compression'), $compression)
+ unless compression_is_supported($compression);
+ compression_set_default($compression);
+ } elsif (m/^-(?:z|-compression-level=)(.*)$/) {
+ my $comp_level = $1;
+ $options{comp_level} = $comp_level;
+ usageerr(g_('%s is not a compression level'), $comp_level)
+ unless compression_is_valid_level($comp_level);
+ compression_set_default_level($comp_level);
+ } elsif (m/^--threads-max=(.*)$/) {
+ my $threads = $1;
+ $options{comp_threads} = $threads;
+ compression_set_threads($threads);
+ } elsif (m/^-c(.*)$/) {
+ $controlfile = $1;
+ } elsif (m/^-l(.*)$/) {
+ $options{changelog_file} = $1;
+ } elsif (m/^-F([0-9a-z]+)$/) {
+ $changelogformat = $1;
+ } elsif (m/^-D([^\=:]+)[=:](.*)$/s) {
+ $override{$1} = $2;
+ } elsif (m/^-U([^\=:]+)$/) {
+ $remove{$1} = 1;
+ } elsif (m/^--diff-ignore$/) {
+ $options{diff_ignore_regex} = $diff_ignore_regex;
+ } elsif (m/^-(?:i|-diff-ignore=)(.*)$/) {
+ $options{diff_ignore_regex} = $1 ? $1 : $diff_ignore_regex;
+ } elsif (m/^--extend-diff-ignore=(.+)$/) {
+ $diff_ignore_regex .= "|$1";
+ if ($options{diff_ignore_regex}) {
+ $options{diff_ignore_regex} .= "|$1";
+ }
+ set_default_diff_ignore_regex($diff_ignore_regex);
+ } elsif (m/^-(?:I|-tar-ignore=)(.+)$/) {
+ push @{$options{tar_ignore}}, $1;
+ } elsif (m/^-(?:I|-tar-ignore)$/) {
+ unless ($tar_ignore_default_pattern_done) {
+ push @{$options{tar_ignore}}, get_default_tar_ignore_pattern();
+ # Prevent adding multiple times
+ $tar_ignore_default_pattern_done = 1;
+ }
+ } elsif (m/^--no-copy$/) {
+ $options{copy_orig_tarballs} = 0;
+ } elsif (m/^--no-check$/) {
+ $options{no_check} = 1;
+ } elsif (m/^--no-overwrite-dir$/) {
+ $options{no_overwrite_dir} = 1;
+ } elsif (m/^--require-valid-signature$/) {
+ $options{require_valid_signature} = 1;
+ } elsif (m/^--require-strong-checksums$/) {
+ $options{require_strong_checksums} = 1;
+ } elsif (m/^-V(\w[-:0-9A-Za-z]*)[=:](.*)$/s) {
+ $substvars->set($1, $2);
+ } elsif (m/^-T(.*)$/) {
+ $substvars->load($1) if -e $1;
+ } elsif (m/^-(?:\?|-help)$/) {
+ usage();
+ exit(0);
+ } elsif (m/^--version$/) {
+ version();
+ exit(0);
+ } elsif (m/^-[EW]$/) {
+ # Deprecated option
+ warning(g_('-E and -W are deprecated, they are without effect'));
+ } elsif (m/^-q$/) {
+ report_options(quiet_warnings => 1);
+ $options{quiet} = 1;
+ } elsif (m/^--$/) {
+ last;
+ } else {
+ push @cmdline_options, $_;
+ }
+}
+
+unless (defined($options{opmode})) {
+ usageerr(g_('need an action option'));
+}
+
+if ($options{opmode} =~ /^(build|print-format|(before|after)-build|commit)$/) {
+ $options{ARGV} = \@ARGV;
+ $options{changelog_file} ||= "$dir/debian/changelog";
+ $controlfile ||= "$dir/debian/control";
+
+ my %ch_options = (file => $options{changelog_file});
+ $ch_options{changelogformat} = $changelogformat if $changelogformat;
+ my $changelog = changelog_parse(%ch_options);
+ my $control = Dpkg::Control::Info->new($controlfile);
+
+ # <https://reproducible-builds.org/specs/source-date-epoch/>
+ $ENV{SOURCE_DATE_EPOCH} ||= $changelog->{timestamp} || time;
+
+ # Select the format to use
+ if (not defined $build_format) {
+ my $format_file = "$dir/debian/source/format";
+ if (-e $format_file) {
+ my $format = Dpkg::Source::Format->new(filename => $format_file);
+ $build_format = $format->get();
+ } else {
+ warning(g_('no source format specified in %s, ' .
+ 'see dpkg-source(1)'), 'debian/source/format')
+ if $options{opmode} eq 'build';
+ $build_format = '1.0';
+ }
+ }
+
+ my $srcpkg = Dpkg::Source::Package->new(format => $build_format,
+ options => \%options);
+ my $fields = $srcpkg->{fields};
+
+ $srcpkg->parse_cmdline_options(@cmdline_options);
+
+ my @sourcearch;
+ my %archadded;
+ my @binarypackages;
+
+ # Scan control info of source package
+ my $src_fields = $control->get_source();
+ error(g_("%s doesn't contain any information about the source package"),
+ $controlfile) unless defined $src_fields;
+ my $src_sect = $src_fields->{'Section'} || 'unknown';
+ my $src_prio = $src_fields->{'Priority'} || 'unknown';
+ foreach (keys %{$src_fields}) {
+ my $v = $src_fields->{$_};
+ if (m/^Source$/i) {
+ set_source_package($v);
+ $fields->{$_} = $v;
+ } elsif (m/^Uploaders$/i) {
+ ($fields->{$_} = $v) =~ s/\s*[\r\n]\s*/ /g; # Merge in a single-line
+ } elsif (m/^Build-(?:Depends|Conflicts)(?:-Arch|-Indep)?$/i) {
+ my $dep;
+ my $type = field_get_dep_type($_);
+ $dep = deps_parse($v, build_dep => 1, union => $type eq 'union');
+ error(g_('cannot parse %s field'), $_) unless defined $dep;
+ my $facts = Dpkg::Deps::KnownFacts->new();
+ $dep->simplify_deps($facts);
+ $dep->sort() if $type eq 'union';
+ $fields->{$_} = $dep->output();
+ } else {
+ field_transfer_single($src_fields, $fields);
+ }
+ }
+
+ # Scan control info of binary packages
+ my @pkglist;
+ foreach my $pkg ($control->get_packages()) {
+ my $p = $pkg->{'Package'};
+ my $sect = $pkg->{'Section'} || $src_sect;
+ my $prio = $pkg->{'Priority'} || $src_prio;
+ my $type = $pkg->{'Package-Type'} ||
+ $pkg->get_custom_field('Package-Type') || 'deb';
+ my $arch = $pkg->{'Architecture'};
+ my $profile = $pkg->{'Build-Profiles'};
+
+ my $pkg_summary = sprintf('%s %s %s %s', $p, $type, $sect, $prio);
+
+ $pkg_summary .= ' arch=' . join ',', split ' ', $arch;
+
+ if (defined $profile) {
+ # Instead of splitting twice and then joining twice, we just do
+ # simple string replacements:
+
+ # Remove the enclosing <>
+ $profile =~ s/^\s*<(.*)>\s*$/$1/;
+ # Join lists with a plus (OR)
+ $profile =~ s/>\s+</+/g;
+ # Join their elements with a comma (AND)
+ $profile =~ s/\s+/,/g;
+ $pkg_summary .= " profile=$profile";
+ }
+ if (defined $pkg->{'Protected'} and $pkg->{'Protected'} eq 'yes') {
+ $pkg_summary .= ' protected=yes';
+ }
+ if (defined $pkg->{'Essential'} and $pkg->{'Essential'} eq 'yes') {
+ $pkg_summary .= ' essential=yes';
+ }
+
+ push @pkglist, $pkg_summary;
+ push @binarypackages, $p;
+ foreach (keys %{$pkg}) {
+ my $v = $pkg->{$_};
+ if (m/^Architecture$/) {
+ # Gather all binary architectures in one set. 'any' and 'all'
+ # are special-cased as they need to be the only ones in the
+ # current stanza if present.
+ if (debarch_eq($v, 'any') || debarch_eq($v, 'all')) {
+ push(@sourcearch, $v) unless $archadded{$v}++;
+ } else {
+ for my $a (split(/\s+/, $v)) {
+ error(g_("'%s' is not a legal architecture string " .
+ "in package '%s'"), $a, $p)
+ if debarch_is_illegal($a);
+ error(g_('architecture %s only allowed on its ' .
+ "own (list for package %s is '%s')"),
+ $a, $p, $a)
+ if $a eq 'any' or $a eq 'all';
+ push(@sourcearch, $a) unless $archadded{$a}++;
+ }
+ }
+ } elsif (m/^(?:Homepage|Description)$/) {
+ # Do not overwrite the same field from the source entry
+ } else {
+ field_transfer_single($pkg, $fields);
+ }
+ }
+ }
+ unless (scalar(@pkglist)) {
+ error(g_("%s doesn't list any binary package"), $controlfile);
+ }
+ if (any { $_ eq 'any' } @sourcearch) {
+ # If we encounter one 'any' then the other arches become insignificant
+ # except for 'all' that must also be kept
+ if (any { $_ eq 'all' } @sourcearch) {
+ @sourcearch = qw(any all);
+ } else {
+ @sourcearch = qw(any);
+ }
+ } else {
+ # Minimize arch list, by removing arches already covered by wildcards
+ my @arch_wildcards = grep { debarch_is_wildcard($_) } @sourcearch;
+ my @mini_sourcearch = @arch_wildcards;
+ foreach my $arch (@sourcearch) {
+ if (none { debarch_is($arch, $_) } @arch_wildcards) {
+ push @mini_sourcearch, $arch;
+ }
+ }
+ @sourcearch = @mini_sourcearch;
+ }
+ $fields->{'Architecture'} = join(' ', @sourcearch);
+ $fields->{'Package-List'} = "\n" . join("\n", sort @pkglist);
+
+ # Check if we have a testsuite, and handle manual and automatic values.
+ set_testsuite_fields($fields, @binarypackages);
+
+ # Scan fields of dpkg-parsechangelog
+ foreach (keys %{$changelog}) {
+ my $v = $changelog->{$_};
+
+ if (m/^Source$/) {
+ set_source_package($v);
+ $fields->{$_} = $v;
+ } elsif (m/^Version$/) {
+ my ($ok, $error) = version_check($v);
+ error($error) unless $ok;
+ $fields->{$_} = $v;
+ } elsif (m/^Binary-Only$/) {
+ error(g_('building source for a binary-only release'))
+ if $v eq 'yes' and $options{opmode} eq 'build';
+ } elsif (m/^Maintainer$/i) {
+ # Do not replace the field coming from the source entry
+ } else {
+ field_transfer_single($changelog, $fields);
+ }
+ }
+
+ $fields->{'Binary'} = join(', ', @binarypackages);
+ # Avoid overly long line by splitting over multiple lines
+ if (length($fields->{'Binary'}) > 980) {
+ $fields->{'Binary'} =~ s/(.{0,980}), ?/$1,\n/g;
+ }
+
+ if ($options{opmode} eq 'print-format') {
+ print $fields->{'Format'} . "\n";
+ exit(0);
+ } elsif ($options{opmode} eq 'before-build') {
+ $srcpkg->before_build($dir);
+ exit(0);
+ } elsif ($options{opmode} eq 'after-build') {
+ $srcpkg->after_build($dir);
+ exit(0);
+ } elsif ($options{opmode} eq 'commit') {
+ $srcpkg->commit($dir);
+ exit(0);
+ }
+
+ # Verify pre-requisites are met
+ my ($res, $msg) = $srcpkg->can_build($dir);
+ error(g_("can't build with source format '%s': %s"), $build_format, $msg) unless $res;
+
+ # Only -b left
+ info(g_("using source format '%s'"), $fields->{'Format'});
+ run_vendor_hook('before-source-build', $srcpkg);
+ # Build the files (.tar.gz, .diff.gz, etc)
+ $srcpkg->build($dir);
+
+ # Write the .dsc
+ my $dscname = $srcpkg->get_basename(1) . '.dsc';
+ info(g_('building %s in %s'), get_source_package(), $dscname);
+ $srcpkg->write_dsc(filename => $dscname,
+ remove => \%remove,
+ override => \%override,
+ substvars => $substvars);
+ exit(0);
+} elsif ($options{opmode} eq 'extract') {
+ # Check command line
+ unless (scalar(@ARGV)) {
+ usageerr(g_('--%s needs at least one argument, the .dsc'),
+ $options{opmode});
+ }
+ if (scalar(@ARGV) > 2) {
+ usageerr(g_('--%s takes no more than two arguments'), $options{opmode});
+ }
+ my $dsc = shift(@ARGV);
+ if (-d $dsc) {
+ usageerr(g_('--%s needs the .dsc file as first argument, not a directory'),
+ $options{opmode});
+ }
+
+ # Create the object that does everything
+ my $srcpkg = Dpkg::Source::Package->new(filename => $dsc,
+ options => \%options);
+
+ # Parse command line options
+ $srcpkg->parse_cmdline_options(@cmdline_options);
+
+ # Decide where to unpack
+ my $newdirectory = $srcpkg->get_basename();
+ $newdirectory =~ s/_/-/g;
+ if (@ARGV) {
+ $newdirectory = File::Spec->catdir(shift(@ARGV));
+ if (-e $newdirectory) {
+ error(g_('unpack target exists: %s'), $newdirectory);
+ }
+ }
+
+ # Various checks before unpacking
+ unless ($options{no_check}) {
+ if ($srcpkg->is_signed()) {
+ $srcpkg->check_signature();
+ } else {
+ if ($options{require_valid_signature}) {
+ error(g_("%s doesn't contain a valid OpenPGP signature"), $dsc);
+ } else {
+ warning(g_('extracting unsigned source package (%s)'), $dsc);
+ }
+ }
+ $srcpkg->check_checksums();
+ }
+
+ # Unpack the source package (delegated to Dpkg::Source::Package::*)
+ info(g_('extracting %s in %s'), $srcpkg->{fields}{'Source'}, $newdirectory);
+ $srcpkg->extract($newdirectory);
+
+ exit(0);
+}
+
+sub set_testsuite_fields
+{
+ my ($fields, @binarypackages) = @_;
+
+ my $testsuite_field = $fields->{'Testsuite'} // '';
+ my %testsuite = map { $_ => 1 } split /\s*,\s*/, $testsuite_field;
+ if (-e "$dir/debian/tests/control") {
+ error(g_('test control %s is not a regular file'),
+ 'debian/tests/control') unless -f _;
+ $testsuite{autopkgtest} = 1;
+
+ my $tests = Dpkg::Control::Tests->new();
+ $tests->load("$dir/debian/tests/control");
+
+ set_testsuite_triggers_field($tests, $fields, @binarypackages);
+ } elsif ($testsuite{autopkgtest}) {
+ warning(g_('%s field contains value %s, but no tests control file %s'),
+ 'Testsuite', 'autopkgtest', 'debian/tests/control');
+ delete $testsuite{autopkgtest};
+ }
+ $fields->{'Testsuite'} = join ', ', sort keys %testsuite;
+}
+
+sub set_testsuite_triggers_field
+{
+ my ($tests, $fields, @binarypackages) = @_;
+ my %testdeps;
+
+ # Never overwrite a manually defined field.
+ return if $fields->{'Testsuite-Triggers'};
+
+ foreach my $test ($tests->get()) {
+ if (not exists $test->{Tests} and not exists $test->{'Test-Command'}) {
+ error(g_('test control %s is missing %s or %s field'),
+ 'debian/tests/control', 'Tests', 'Test-Command');
+ }
+
+ next unless $test->{Depends};
+
+ my $deps = deps_parse($test->{Depends}, use_arch => 0, tests_dep => 1);
+ deps_iterate($deps, sub { $testdeps{$_[0]->{package}} = 1 });
+ }
+
+ # Remove our own binaries and its meta-depends variant.
+ foreach my $pkg (@binarypackages, qw(@)) {
+ delete $testdeps{$pkg};
+ }
+ $fields->{'Testsuite-Triggers'} = join ', ', sort keys %testdeps;
+}
+
+sub setopmode {
+ my $opmode = shift;
+
+ if (defined($options{opmode})) {
+ usageerr(g_('two commands specified: --%s and --%s'),
+ $options{opmode}, $opmode);
+ }
+ $options{opmode} = $opmode;
+}
+
+sub print_option {
+ my $opt = shift;
+
+ my $help = gettext($opt->{help});
+ if (length $opt->{name} > 25) {
+ return sprintf " %-25s\n%s%s.\n", $opt->{name}, ' ' x 27, $help;
+ } else {
+ return sprintf " %-25s%s.\n", $opt->{name}, $help;
+ }
+}
+
+sub get_format_help {
+ $build_format //= '1.0';
+
+ my $srcpkg = Dpkg::Source::Package->new(format => $build_format);
+
+ my @cmdline = $srcpkg->describe_cmdline_options();
+ return '' unless @cmdline;
+
+ my $help_build = my $help_extract = '';
+ my $help;
+
+ foreach my $opt (@cmdline) {
+ $help_build .= print_option($opt) if $opt->{when} eq 'build';
+ $help_extract .= print_option($opt) if $opt->{when} eq 'extract';
+ }
+
+ if ($help_build) {
+ $help .= "\n";
+ $help .= "Build format $build_format options:\n";
+ $help .= $help_build || C_('source options', '<none>');
+ }
+ if ($help_extract) {
+ $help .= "\n";
+ $help .= "Extract format $build_format options:\n";
+ $help .= $help_extract || C_('source options', '<none>');
+ }
+
+ return $help;
+}
+
+sub version {
+ printf g_("Debian %s version %s.\n"), $Dpkg::PROGNAME, $Dpkg::PROGVERSION;
+
+ print g_('
+This is free software; see the GNU General Public License version 2 or
+later for copying conditions. There is NO warranty.
+');
+}
+
+sub usage {
+ printf g_(
+'Usage: %s [<option>...] <command>')
+ . "\n\n" . g_(
+'Commands:
+ -x, --extract <filename>.dsc [<output-dir>]
+ extract source package.
+ -b, --build <dir> build source package.
+ --print-format <dir> print the format to be used for the source package.
+ --before-build <dir> run the corresponding source package format hook.
+ --after-build <dir> run the corresponding source package format hook.
+ --commit [<dir> [<patch-name>]]
+ store upstream changes in a new patch.')
+ . "\n\n" . g_(
+"Build options:
+ -c<control-file> get control info from this file.
+ -l<changelog-file> get per-version info from this file.
+ -F<changelog-format> force changelog format.
+ --format=<source-format> set the format to be used for the source package.
+ -V<name>=<value> set a substitution variable.
+ -T<substvars-file> read variables here.
+ -D<field>=<value> override or add a .dsc field and value.
+ -U<field> remove a field.
+ -i, --diff-ignore[=<regex>]
+ filter out files to ignore diffs of
+ (defaults to: '%s').
+ -I, --tar-ignore[=<pattern>]
+ filter out files when building tarballs
+ (defaults to: %s).
+ -Z, --compression=<compression>
+ select compression to use (defaults to '%s',
+ supported are: %s).
+ -z, --compression-level=<level>
+ compression level to use (defaults to '%d',
+ supported are: '1'-'9', 'best', 'fast')")
+ . "\n\n" . g_(
+"Extract options:
+ --no-copy don't copy .orig tarballs
+ --no-check don't check signature and checksums before unpacking
+ --no-overwrite-dir do not overwrite directory on extraction
+ --require-valid-signature abort if the package doesn't have a valid signature
+ --require-strong-checksums
+ abort if the package contains no strong checksums
+ --ignore-bad-version allow bad source package versions.")
+ . "\n" .
+ get_format_help()
+ . "\n" . g_(
+'General options:
+ --threads-max=<threads>
+ use at most <threads> with compressor.
+ -q quiet mode.
+ -?, --help show this help message.
+ --version show the version.')
+ . "\n\n" . g_(
+'Source format specific build and extract options are available;
+use --format with --help to see them.') . "\n",
+ $Dpkg::PROGNAME,
+ get_default_diff_ignore_regex(),
+ join(' ', map { "-I$_" } get_default_tar_ignore_pattern()),
+ compression_get_default(),
+ join(' ', compression_get_list()),
+ compression_get_default_level();
+}