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-rwxr-xr-xscripts/dpkg-gencontrol.pl436
1 files changed, 436 insertions, 0 deletions
diff --git a/scripts/dpkg-gencontrol.pl b/scripts/dpkg-gencontrol.pl
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@@ -0,0 +1,436 @@
+#!/usr/bin/perl
+#
+# dpkg-gencontrol
+#
+# Copyright © 1996 Ian Jackson
+# Copyright © 2000,2002 Wichert Akkerman
+# Copyright © 2006-2015 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 List::Util qw(none);
+use POSIX qw(:errno_h :fcntl_h);
+use File::Find;
+
+use Dpkg ();
+use Dpkg::Gettext;
+use Dpkg::ErrorHandling;
+use Dpkg::Lock;
+use Dpkg::Arch qw(get_host_arch debarch_eq debarch_is debarch_list_parse);
+use Dpkg::BuildProfiles qw(get_build_profiles);
+use Dpkg::Deps;
+use Dpkg::Control;
+use Dpkg::Control::Info;
+use Dpkg::Control::Fields;
+use Dpkg::Substvars;
+use Dpkg::Package;
+use Dpkg::Changelog::Parse;
+use Dpkg::Dist::Files;
+
+textdomain('dpkg-dev');
+
+
+my $controlfile = 'debian/control';
+my $changelogfile = 'debian/changelog';
+my $changelogformat;
+my $fileslistfile = 'debian/files';
+my $packagebuilddir = 'debian/tmp';
+my $outputfile;
+
+my $sourceversion;
+my $binaryversion;
+my $forceversion;
+my $forcefilename;
+my $stdout;
+my %remove;
+my %override;
+my $oppackage;
+my $substvars = Dpkg::Substvars->new();
+my $substvars_loaded = 0;
+
+
+sub version {
+ printf g_("Debian %s version %s.\n"), $Dpkg::PROGNAME, $Dpkg::PROGVERSION;
+
+ printf 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>...]')
+ . "\n\n" . g_(
+'Options:
+ -p<package> print control file for package.
+ -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.
+ -v<force-version> set version of binary package.
+ -f<files-list-file> write files here instead of debian/files.
+ -P<package-build-dir> temporary build directory instead of debian/tmp.
+ -n<filename> assume the package filename will be <filename>.
+ -O[<file>] write to stdout (or <file>), not .../DEBIAN/control.
+ -is, -ip, -isp, -ips deprecated, ignored for compatibility.
+ -D<field>=<value> override or add a field and value.
+ -U<field> remove a field.
+ -V<name>=<value> set a substitution variable.
+ -T<substvars-file> read variables here, not debian/substvars.
+ -?, --help show this help message.
+ --version show the version.
+'), $Dpkg::PROGNAME;
+}
+
+while (@ARGV) {
+ $_ = shift @ARGV;
+ if (m/^-p/p) {
+ $oppackage = ${^POSTMATCH};
+ my $err = pkg_name_is_illegal($oppackage);
+ error(g_("illegal package name '%s': %s"), $oppackage, $err) if $err;
+ } elsif (m/^-c/p) {
+ $controlfile = ${^POSTMATCH};
+ } elsif (m/^-l/p) {
+ $changelogfile = ${^POSTMATCH};
+ } elsif (m/^-P/p) {
+ $packagebuilddir = ${^POSTMATCH};
+ } elsif (m/^-f/p) {
+ $fileslistfile = ${^POSTMATCH};
+ } elsif (m/^-v(.+)$/) {
+ $forceversion = $1;
+ } elsif (m/^-O$/) {
+ $stdout = 1;
+ } elsif (m/^-O(.+)$/) {
+ $outputfile = $1;
+ } elsif (m/^-i[sp][sp]?$/) {
+ warning(g_('%s is deprecated; it is without effect'), $_);
+ } elsif (m/^-F([0-9a-z]+)$/) {
+ $changelogformat = $1;
+ } elsif (m/^-D([^\=:]+)[=:]/p) {
+ $override{$1} = ${^POSTMATCH};
+ } elsif (m/^-U([^\=:]+)$/) {
+ $remove{$1} = 1;
+ } elsif (m/^-V(\w[-:0-9A-Za-z]*)[=:]/p) {
+ $substvars->set_as_used($1, ${^POSTMATCH});
+ } elsif (m/^-T(.*)$/) {
+ $substvars->load($1) if -e $1;
+ $substvars_loaded = 1;
+ } elsif (m/^-n/p) {
+ $forcefilename = ${^POSTMATCH};
+ } elsif (m/^-(?:\?|-help)$/) {
+ usage();
+ exit(0);
+ } elsif (m/^--version$/) {
+ version();
+ exit(0);
+ } else {
+ usageerr(g_("unknown option '%s'"), $_);
+ }
+}
+
+umask 0022; # ensure sane default permissions for created files
+my %options = (file => $changelogfile);
+$options{changelogformat} = $changelogformat if $changelogformat;
+my $changelog = changelog_parse(%options);
+if ($changelog->{'Binary-Only'}) {
+ $options{count} = 1;
+ $options{offset} = 1;
+ my $prev_changelog = changelog_parse(%options);
+ $sourceversion = $prev_changelog->{'Version'};
+} else {
+ $sourceversion = $changelog->{'Version'};
+}
+
+if (defined $forceversion) {
+ $binaryversion = $forceversion;
+} else {
+ $binaryversion = $changelog->{'Version'};
+}
+
+$substvars->set_version_substvars($sourceversion, $binaryversion);
+$substvars->set_vendor_substvars();
+$substvars->set_arch_substvars();
+$substvars->load('debian/substvars') if -e 'debian/substvars' and not $substvars_loaded;
+my $control = Dpkg::Control::Info->new($controlfile);
+my $fields = Dpkg::Control->new(type => CTRL_DEB);
+
+# Old-style bin-nmus change the source version submitted to
+# set_version_substvars()
+$sourceversion = $substvars->get('source:Version');
+
+my $pkg;
+
+if (defined($oppackage)) {
+ $pkg = $control->get_pkg_by_name($oppackage);
+ if (not defined $pkg) {
+ error(g_('package %s not in control info'), $oppackage)
+ }
+} else {
+ my @packages = map { $_->{'Package'} } $control->get_packages();
+ if (@packages == 0) {
+ error(g_('no package stanza found in control info'));
+ } elsif (@packages > 1) {
+ error(g_('must specify package since control info has many (%s)'),
+ "@packages");
+ }
+ $pkg = $control->get_pkg_by_idx(1);
+}
+$substvars->set_msg_prefix(sprintf(g_('package %s: '), $pkg->{Package}));
+
+# Scan source package
+my $src_fields = $control->get_source();
+foreach my $f (keys %{$src_fields}) {
+ if ($f eq 'Source') {
+ set_source_name($src_fields->{$f});
+ } elsif ($f eq 'Description') {
+ # Description in binary packages is not inherited, do not copy this
+ # field, only initialize the description substvars.
+ $substvars->set_desc_substvars($src_fields->{$f});
+ } else {
+ field_transfer_single($src_fields, $fields, $f);
+ }
+}
+$substvars->set_field_substvars($src_fields, 'S');
+
+# Scan binary package
+foreach my $f (keys %{$pkg}) {
+ my $v = $pkg->{$f};
+
+ if (field_get_dep_type($f)) {
+ # Delay the parsing until later
+ } elsif ($f eq 'Architecture') {
+ my $host_arch = get_host_arch();
+
+ if (debarch_eq('all', $v)) {
+ $fields->{$f} = $v;
+ } else {
+ my @archlist = debarch_list_parse($v, positive => 1);
+
+ if (none { debarch_is($host_arch, $_) } @archlist) {
+ error(g_("current host architecture '%s' does not " .
+ "appear in package '%s' architecture list (%s)"),
+ $host_arch, $oppackage, "@archlist");
+ }
+ $fields->{$f} = $host_arch;
+ }
+ } else {
+ field_transfer_single($pkg, $fields, $f);
+ }
+}
+
+# Scan fields of dpkg-parsechangelog
+foreach my $f (keys %{$changelog}) {
+ my $v = $changelog->{$f};
+
+ if ($f eq 'Source') {
+ set_source_name($v);
+ } elsif ($f eq 'Version') {
+ # Already handled previously.
+ } elsif ($f eq 'Maintainer') {
+ # That field must not be copied from changelog even if it's
+ # allowed in the binary package control information
+ } else {
+ field_transfer_single($changelog, $fields, $f);
+ }
+}
+
+$fields->{'Version'} = $binaryversion;
+
+# Process dependency fields in a second pass, now that substvars have been
+# initialized.
+
+my $facts = Dpkg::Deps::KnownFacts->new();
+$facts->add_installed_package($fields->{'Package'}, $fields->{'Version'},
+ $fields->{'Architecture'}, $fields->{'Multi-Arch'});
+if (exists $pkg->{'Provides'}) {
+ my $provides = deps_parse($substvars->substvars($pkg->{'Provides'}, no_warn => 1),
+ reduce_restrictions => 1, virtual => 1, union => 1);
+ if (defined $provides) {
+ foreach my $subdep ($provides->get_deps()) {
+ if ($subdep->isa('Dpkg::Deps::Simple')) {
+ $facts->add_provided_package($subdep->{package},
+ $subdep->{relation}, $subdep->{version},
+ $fields->{'Package'});
+ }
+ }
+ }
+}
+
+my (@seen_deps);
+foreach my $field (field_list_pkg_dep()) {
+ # Arch: all can't be simplified as the host architecture is not known
+ my $reduce_arch = debarch_eq('all', $pkg->{Architecture} || 'all') ? 0 : 1;
+ if (exists $pkg->{$field}) {
+ my $dep;
+ my $field_value = $substvars->substvars($pkg->{$field},
+ msg_prefix => sprintf(g_('%s field of package %s: '), $field, $pkg->{Package}));
+ if (field_get_dep_type($field) eq 'normal') {
+ $dep = deps_parse($field_value, use_arch => 1,
+ reduce_arch => $reduce_arch,
+ reduce_profiles => 1);
+ error(g_("parsing package '%s' %s field: %s"), $oppackage,
+ $field, $field_value) unless defined $dep;
+ $dep->simplify_deps($facts, @seen_deps);
+ # Remember normal deps to simplify even further weaker deps
+ push @seen_deps, $dep;
+ } else {
+ $dep = deps_parse($field_value, use_arch => 1,
+ reduce_arch => $reduce_arch,
+ reduce_profiles => 1, union => 1);
+ error(g_("parsing package '%s' %s field: %s"), $oppackage,
+ $field, $field_value) unless defined $dep;
+ $dep->simplify_deps($facts);
+ $dep->sort();
+ }
+ error(g_('the %s field contains an arch-specific dependency but the ' .
+ "package '%s' is architecture all"), $field, $oppackage)
+ if $dep->has_arch_restriction();
+ $fields->{$field} = $dep->output();
+ delete $fields->{$field} unless $fields->{$field}; # Delete empty field
+ }
+}
+
+for my $f (qw(Package Version Architecture)) {
+ error(g_('missing information for output field %s'), $f)
+ unless defined $fields->{$f};
+}
+for my $f (qw(Maintainer Description)) {
+ warning(g_('missing information for output field %s'), $f)
+ unless defined $fields->{$f};
+}
+
+my $pkg_type = $pkg->{'Package-Type'} ||
+ $pkg->get_custom_field('Package-Type') || 'deb';
+
+if ($pkg_type eq 'udeb') {
+ delete $fields->{'Package-Type'};
+ delete $fields->{'Homepage'};
+} else {
+ for my $f (qw(Subarchitecture Kernel-Version Installer-Menu-Item)) {
+ warning(g_("%s package '%s' with udeb specific field %s"),
+ $pkg_type, $oppackage, $f)
+ if defined($fields->{$f});
+ }
+}
+
+my $sourcepackage = get_source_name();
+my $binarypackage = $override{'Package'} // $fields->{'Package'};
+my $verdiff = $binaryversion ne $sourceversion;
+if ($binarypackage ne $sourcepackage || $verdiff) {
+ $fields->{'Source'} = $sourcepackage;
+ $fields->{'Source'} .= ' (' . $sourceversion . ')' if $verdiff;
+}
+
+if (!defined($substvars->get('Installed-Size'))) {
+ my $installed_size = 0;
+ my %hardlink;
+ my $scan_installed_size = sub {
+ lstat or syserr(g_('cannot stat %s'), $File::Find::name);
+
+ if (-f _ or -l _) {
+ my ($dev, $ino, $nlink) = (lstat _)[0, 1, 3];
+
+ # For filesystem objects with actual content accumulate the size
+ # in 1 KiB units.
+ $installed_size += POSIX::ceil((-s _) / 1024)
+ if not exists $hardlink{"$dev:$ino"};
+
+ # Track hardlinks to avoid repeated additions.
+ $hardlink{"$dev:$ino"} = 1 if $nlink > 1;
+ } else {
+ # For other filesystem objects assume a minimum 1 KiB baseline,
+ # as directories are shared resources between packages, and other
+ # object types are mainly metadata-only, supposedly consuming
+ # at most an inode.
+ $installed_size += 1;
+ }
+ };
+ find($scan_installed_size, $packagebuilddir) if -d $packagebuilddir;
+
+ $substvars->set_as_auto('Installed-Size', $installed_size);
+}
+if (defined($substvars->get('Extra-Size'))) {
+ my $size = $substvars->get('Extra-Size') + $substvars->get('Installed-Size');
+ $substvars->set_as_auto('Installed-Size', $size);
+}
+if (defined($substvars->get('Installed-Size'))) {
+ $fields->{'Installed-Size'} = $substvars->get('Installed-Size');
+}
+
+for my $f (keys %override) {
+ $fields->{$f} = $override{$f};
+}
+for my $f (keys %remove) {
+ delete $fields->{$f};
+}
+
+$fields->apply_substvars($substvars);
+
+if ($stdout) {
+ $fields->output(\*STDOUT);
+} else {
+ $outputfile //= "$packagebuilddir/DEBIAN/control";
+
+ my $sversion = $fields->{'Version'};
+ $sversion =~ s/^\d+://;
+ $forcefilename //= sprintf('%s_%s_%s.%s', $fields->{'Package'}, $sversion,
+ $fields->{'Architecture'}, $pkg_type);
+ my $section = $fields->{'Section'} || '-';
+ my $priority = $fields->{'Priority'} || '-';
+
+ # Obtain a lock on debian/control to avoid simultaneous updates
+ # of debian/files when parallel building is in use
+ my $lockfh;
+ my $lockfile = 'debian/control';
+ $lockfile = $controlfile if not -e $lockfile;
+
+ sysopen $lockfh, $lockfile, O_WRONLY
+ or syserr(g_('cannot write %s'), $lockfile);
+ file_lock($lockfh, $lockfile);
+
+ my $dist = Dpkg::Dist::Files->new();
+ $dist->load($fileslistfile) if -e $fileslistfile;
+
+ foreach my $file ($dist->get_files()) {
+ if (defined $file->{package} &&
+ ($file->{package} eq $fields->{'Package'}) &&
+ ($file->{package_type} eq $pkg_type) &&
+ (debarch_eq($file->{arch}, $fields->{'Architecture'}) ||
+ debarch_eq($file->{arch}, 'all'))) {
+ $dist->del_file($file->{filename});
+ }
+ }
+
+ my %fileattrs;
+ $fileattrs{automatic} = 'yes' if $fields->{'Auto-Built-Package'};
+
+ $dist->add_file($forcefilename, $section, $priority, %fileattrs);
+ $dist->save("$fileslistfile.new");
+
+ rename "$fileslistfile.new", $fileslistfile
+ or syserr(g_('install new files list file'));
+
+ # Release the lock
+ close $lockfh or syserr(g_('cannot close %s'), $lockfile);
+
+ $fields->save("$outputfile.new");
+
+ rename "$outputfile.new", $outputfile
+ or syserr(g_("cannot install output control file '%s'"), $outputfile);
+}
+
+$substvars->warn_about_unused();