/usr/bin/dpkg-genchanges is in dpkg-dev 1.17.27.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
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#
# dpkg-genchanges
#
# Copyright © 1996 Ian Jackson
# Copyright © 2000,2001 Wichert Akkerman
# Copyright © 2006-2014 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 Carp;
use Encode;
use POSIX qw(:errno_h);
use Dpkg ();
use Dpkg::Gettext;
use Dpkg::Util qw(:list);
use Dpkg::File;
use Dpkg::Checksums;
use Dpkg::ErrorHandling;
use Dpkg::BuildProfiles qw(get_build_profiles parse_build_profiles
evaluate_restriction_formula);
use Dpkg::Arch qw(get_host_arch debarch_eq debarch_is);
use Dpkg::Compression;
use Dpkg::Control::Info;
use Dpkg::Control::Fields;
use Dpkg::Control;
use Dpkg::Substvars;
use Dpkg::Vars;
use Dpkg::Changelog::Parse;
use Dpkg::Dist::Files;
use Dpkg::Version;
textdomain('dpkg-dev');
my $controlfile = 'debian/control';
my $changelogfile = 'debian/changelog';
my $changelogformat;
my $fileslistfile = 'debian/files';
my $uploadfilesdir = '..';
my $sourcestyle = 'i';
my $quiet = 0;
my $host_arch = get_host_arch();
my @profiles = get_build_profiles();
my $changes_format = '1.8';
my %p2f; # - package to file map, has entries for "packagename"
my %p2arch; # - package to arch map
my %f2seccf; # - package to section map, from control file
my %f2pricf; # - package to priority map, from control file
my %sourcedefault; # - default values as taken from source (used for Section,
# Priority and Maintainer)
my @descriptions;
my $checksums = Dpkg::Checksums->new();
my %remove; # - fields to remove
my %override;
my %archadded;
my @archvalues;
my $changesdescription;
my $forcemaint;
my $forcechangedby;
my $since;
my $substvars_loaded = 0;
my $substvars = Dpkg::Substvars->new();
$substvars->set_as_auto('Format', $changes_format);
use constant BUILD_SOURCE => 1;
use constant BUILD_ARCH_DEP => 2;
use constant BUILD_ARCH_INDEP => 4;
use constant BUILD_BINARY => BUILD_ARCH_DEP | BUILD_ARCH_INDEP;
use constant BUILD_SOURCE_DEP => BUILD_SOURCE | BUILD_ARCH_DEP;
use constant BUILD_SOURCE_INDEP => BUILD_SOURCE | BUILD_ARCH_INDEP;
use constant BUILD_ALL => BUILD_BINARY | BUILD_SOURCE;
my $include = BUILD_ALL;
sub build_is_default() { return ($include & BUILD_ALL) == BUILD_ALL; }
sub build_opt {
if ($include == BUILD_BINARY) {
return '-b';
} elsif ($include == BUILD_ARCH_DEP) {
return '-B';
} elsif ($include == BUILD_ARCH_INDEP) {
return '-A';
} elsif ($include == BUILD_SOURCE) {
return '-S';
} elsif ($include == BUILD_SOURCE_DEP) {
return '-G';
} elsif ($include == BUILD_SOURCE_INDEP) {
return '-g';
} else {
croak "build_opt called with include=$include";
}
}
sub set_build_type
{
my ($build_type, $build_option) = @_;
usageerr(_g('cannot combine %s and %s'), build_opt(), $build_option)
if not build_is_default and $include != $build_type;
$include = $build_type;
}
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:
-g source and arch-indep build.
-G source and arch-specific build.
-b binary-only, no source files.
-B binary-only, only arch-specific files.
-A binary-only, only arch-indep files.
-S source-only, no binary files.
-c<control-file> get control info from this file.
-l<changelog-file> get per-version info from this file.
-f<files-list-file> get .deb files list from this file.
-v<since-version> include all changes later than version.
-C<changes-description> use change description from this file.
-m<maintainer> override control's maintainer value.
-e<maintainer> override changelog's maintainer value.
-u<upload-files-dir> directory with files (default is '..').
-si (default) source includes orig, if new upstream.
-sa source includes orig, always.
-sd source is diff and .dsc only.
-q quiet - no informational messages on stderr.
-F<changelog-format> force changelog format.
-V<name>=<value> set a substitution variable.
-T<substvars-file> read variables here, not debian/substvars.
-D<field>=<value> override or add a field and value.
-U<field> remove a field.
-?, --help show this help message.
--version show the version.
"), $Dpkg::PROGNAME;
}
while (@ARGV) {
$_=shift(@ARGV);
if (m/^-b$/) {
set_build_type(BUILD_BINARY, $_);
} elsif (m/^-B$/) {
set_build_type(BUILD_ARCH_DEP, $_);
} elsif (m/^-A$/) {
set_build_type(BUILD_ARCH_INDEP, $_);
} elsif (m/^-S$/) {
set_build_type(BUILD_SOURCE, $_);
} elsif (m/^-G$/) {
set_build_type(BUILD_SOURCE_DEP, $_);
} elsif (m/^-g$/) {
set_build_type(BUILD_SOURCE_INDEP, $_);
} elsif (m/^-s([iad])$/) {
$sourcestyle= $1;
} elsif (m/^-q$/) {
$quiet= 1;
} elsif (m/^-c(.*)$/) {
$controlfile = $1;
} elsif (m/^-l(.*)$/) {
$changelogfile = $1;
} elsif (m/^-C(.*)$/) {
$changesdescription = $1;
} elsif (m/^-f(.*)$/) {
$fileslistfile = $1;
} elsif (m/^-v(.*)$/) {
$since = $1;
} elsif (m/^-T(.*)$/) {
$substvars->load($1) if -e $1;
$substvars_loaded = 1;
} elsif (m/^-m(.*)$/s) {
$forcemaint = $1;
} elsif (m/^-e(.*)$/s) {
$forcechangedby = $1;
} elsif (m/^-F([0-9a-z]+)$/) {
$changelogformat = $1;
} elsif (m/^-D([^\=:]+)[=:](.*)$/s) {
$override{$1} = $2;
} elsif (m/^-u(.*)$/) {
$uploadfilesdir = $1;
} elsif (m/^-U([^\=:]+)$/) {
$remove{$1} = 1;
} elsif (m/^-V(\w[-:0-9A-Za-z]*)[=:](.*)$/s) {
$substvars->set($1, $2);
} elsif (m/^-(?:\?|-help)$/) {
usage();
exit(0);
} elsif (m/^--version$/) {
version();
exit(0);
} else {
usageerr(_g("unknown option \`%s'"), $_);
}
}
# Retrieve info from the current changelog entry
my %options = (file => $changelogfile);
$options{changelogformat} = $changelogformat if $changelogformat;
$options{since} = $since if defined($since);
my $changelog = changelog_parse(%options);
# Change options to retrieve info of the former changelog entry
delete $options{since};
$options{count} = 1;
$options{offset} = 1;
my $prev_changelog = changelog_parse(%options);
# Other initializations
my $control = Dpkg::Control::Info->new($controlfile);
my $fields = Dpkg::Control->new(type => CTRL_FILE_CHANGES);
my $sourceversion = $changelog->{'Binary-Only'} ?
$prev_changelog->{'Version'} : $changelog->{'Version'};
my $binaryversion = $changelog->{'Version'};
$substvars->set_version_substvars($sourceversion, $binaryversion);
$substvars->set_arch_substvars();
$substvars->load('debian/substvars') if -e 'debian/substvars' and not $substvars_loaded;
if (defined($prev_changelog) and
version_compare_relation($changelog->{'Version'}, REL_LT,
$prev_changelog->{'Version'}))
{
warning(_g('the current version (%s) is earlier than the previous one (%s)'),
$changelog->{'Version'}, $prev_changelog->{'Version'})
# ~bpo and ~vola are backports and have lower version number by definition
unless $changelog->{'Version'} =~ /~(?:bpo|vola)/;
}
# Scan control info of source package
my $src_fields = $control->get_source();
foreach (keys %{$src_fields}) {
my $v = $src_fields->{$_};
if (m/^Source$/) {
set_source_package($v);
} elsif (m/^Section$|^Priority$/i) {
$sourcedefault{$_} = $v;
} else {
field_transfer_single($src_fields, $fields);
}
}
my $dist = Dpkg::Dist::Files->new();
my $origsrcmsg;
if ($include & BUILD_SOURCE) {
my $sec = $sourcedefault{'Section'} // '-';
my $pri = $sourcedefault{'Priority'} // '-';
warning(_g('missing Section for source files')) if $sec eq '-';
warning(_g('missing Priority for source files')) if $pri eq '-';
my $spackage = get_source_package();
(my $sversion = $substvars->get('source:Version')) =~ s/^\d+://;
my $dsc = "${spackage}_${sversion}.dsc";
my $dsc_pathname = "$uploadfilesdir/$dsc";
my $dsc_fields = Dpkg::Control->new(type => CTRL_PKG_SRC);
$dsc_fields->load($dsc_pathname) or error(_g('%s is empty', $dsc_pathname));
$checksums->add_from_file($dsc_pathname, key => $dsc);
$checksums->add_from_control($dsc_fields, use_files_for_md5 => 1);
# Compare upstream version to previous upstream version to decide if
# the .orig tarballs must be included
my $include_tarball;
if (defined($prev_changelog)) {
my $cur = Dpkg::Version->new($changelog->{'Version'});
my $prev = Dpkg::Version->new($prev_changelog->{'Version'});
$include_tarball = ($cur->version() ne $prev->version()) ? 1 : 0;
} else {
# No previous entry means first upload, tarball required
$include_tarball = 1;
}
my $ext = compression_get_file_extension_regex();
if ((($sourcestyle =~ m/i/ && !$include_tarball) ||
$sourcestyle =~ m/d/) &&
any { m/\.(?:debian\.tar|diff)\.$ext$/ } $checksums->get_files())
{
$origsrcmsg = _g('not including original source code in upload');
foreach my $f (grep { m/\.orig(-.+)?\.tar\.$ext$/ } $checksums->get_files()) {
$checksums->remove_file($f);
}
} else {
if ($sourcestyle =~ m/d/ &&
none { m/\.(?:debian\.tar|diff)\.$ext$/ } $checksums->get_files()) {
warning(_g('ignoring -sd option for native Debian package'));
}
$origsrcmsg = _g('including full source code in upload');
}
# Only add attributes for files being distributed.
for my $f ($checksums->get_files()) {
$dist->add_file($f, $sec, $pri);
}
} elsif ($include == BUILD_ARCH_DEP) {
$origsrcmsg = _g('binary-only arch-specific upload ' .
'(source code and arch-indep packages not included)');
} elsif ($include == BUILD_ARCH_INDEP) {
$origsrcmsg = _g('binary-only arch-indep upload ' .
'(source code and arch-specific packages not included)');
} else {
$origsrcmsg = _g('binary-only upload (no source code included)');
}
if ($include & BUILD_BINARY) {
my $dist_count = 0;
$dist_count = $dist->load($fileslistfile) if -e $fileslistfile;
error(_g('binary build with no binary artifacts found; cannot distribute'))
if $dist_count == 0;
foreach my $file ($dist->get_files()) {
if (defined $file->{package} && $file->{package_type} =~ m/^u?deb$/) {
$p2f{$file->{package}} //= [];
push @{$p2f{$file->{package}}}, $file->{filename};
}
if (defined $file->{arch}) {
push @archvalues, $file->{arch}
if $file->{arch} and not $archadded{$file->{arch}}++;
}
}
}
# Scan control info of all binary packages
foreach my $pkg ($control->get_packages()) {
my $p = $pkg->{'Package'};
my $a = $pkg->{'Architecture'} // '';
my $bp = $pkg->{'Build-Profiles'};
my $d = $pkg->{'Description'} || 'no description available';
$d = $1 if $d =~ /^(.*)\n/;
my $pkg_type = $pkg->{'Package-Type'} ||
$pkg->get_custom_field('Package-Type') || 'deb';
my @f; # List of files for this binary package
push @f, @{$p2f{$p}} if defined $p2f{$p};
# Add description of all binary packages
my $desc = encode_utf8(sprintf('%-10s - %-.65s', $p, decode_utf8($d)));
$desc .= ' (udeb)' if $pkg_type eq 'udeb';
push @descriptions, $desc;
my @restrictions;
@restrictions = parse_build_profiles($bp) if defined $bp;
if (not defined($p2f{$p})) {
# No files for this package... warn if it's unexpected
if (((debarch_eq('all', $a) and ($include & BUILD_ARCH_INDEP)) ||
((any { debarch_is($host_arch, $_) } split /\s+/, $a)
and ($include & BUILD_ARCH_DEP))) and
(@restrictions == 0 or
evaluate_restriction_formula(\@restrictions, \@profiles)))
{
warning(_g('package %s in control file but not in files list'),
$p);
}
next; # and skip it
}
$p2arch{$p} = $a;
foreach (keys %{$pkg}) {
my $v = $pkg->{$_};
if (m/^Section$/) {
$f2seccf{$_} = $v foreach (@f);
} elsif (m/^Priority$/) {
$f2pricf{$_} = $v foreach (@f);
} elsif (m/^Architecture$/) {
if ((any { debarch_is($host_arch, $_) } split /\s+/, $v)
and ($include & BUILD_ARCH_DEP)) {
$v = $host_arch;
} elsif (!debarch_eq('all', $v)) {
$v = '';
}
push(@archvalues, $v) if $v and not $archadded{$v}++;
} elsif (m/^Description$/) {
# Description in changes is computed, do not copy this field
} else {
field_transfer_single($pkg, $fields);
}
}
}
# Scan fields of dpkg-parsechangelog
foreach (keys %{$changelog}) {
my $v = $changelog->{$_};
if (m/^Source$/i) {
set_source_package($v);
} elsif (m/^Maintainer$/i) {
$fields->{'Changed-By'} = $v;
} else {
field_transfer_single($changelog, $fields);
}
}
if ($changesdescription) {
open(my $changes_fh, '<', $changesdescription)
or syserr(_g('read changesdescription'));
$fields->{'Changes'} = "\n" . file_slurp($changes_fh);
close($changes_fh);
}
for my $p (keys %p2f) {
warning(_g('package %s listed in files list but not in control info'), $p)
unless defined $control->get_pkg_by_name($p);
}
for my $p (keys %p2f) {
my @f = @{$p2f{$p}};
foreach my $f (@f) {
my $file = $dist->get_file($f);
my $sec = $f2seccf{$f} || $sourcedefault{'Section'} // '-';
if ($sec eq '-') {
warning(_g("missing Section for binary package %s; using '-'"), $p);
}
if ($sec ne $file->{section}) {
error(_g('package %s has section %s in control file but %s in ' .
'files list'), $p, $sec, $file->{section});
}
my $pri = $f2pricf{$f} || $sourcedefault{'Priority'} // '-';
if ($pri eq '-') {
warning(_g("missing Priority for binary package %s; using '-'"), $p);
}
if ($pri ne $file->{priority}) {
error(_g('package %s has priority %s in control file but %s in ' .
'files list'), $p, $pri, $file->{priority});
}
}
}
print { *STDERR } "$Dpkg::PROGNAME: $origsrcmsg\n"
or syserr(_g('write original source message')) unless $quiet;
$fields->{'Format'} = $substvars->get('Format');
if (!defined($fields->{'Date'})) {
chomp(my $date822 = `date -R`);
subprocerr('date -R') if $?;
$fields->{'Date'}= $date822;
}
$fields->{'Binary'} = join(' ', map { $_->{'Package'} } $control->get_packages());
# Avoid overly long line by splitting over multiple lines
if (length($fields->{'Binary'}) > 980) {
$fields->{'Binary'} =~ s/(.{0,980}) /$1\n/g;
}
unshift @archvalues, 'source' if $include & BUILD_SOURCE;
@archvalues = ('all') if $include == BUILD_ARCH_INDEP;
@archvalues = grep { !debarch_eq('all', $_) } @archvalues
unless $include & BUILD_ARCH_INDEP;
@archvalues = grep { !debarch_eq($host_arch, $_) } @archvalues
unless $include & BUILD_ARCH_DEP;
$fields->{'Architecture'} = join ' ', @archvalues;
$fields->{'Built-For-Profiles'} = join ' ', get_build_profiles();
$fields->{'Description'} = "\n" . join("\n", sort @descriptions);
$fields->{'Files'} = '';
for my $file ($dist->get_files()) {
my $f = $file->{filename};
if (defined $file->{package} && $file->{package_type} =~ m/^u?deb$/) {
my $arch_all = debarch_eq('all', $p2arch{$file->{package}});
next if (not ($include & BUILD_ARCH_INDEP) and $arch_all);
next if (not ($include & BUILD_ARCH_DEP) and not $arch_all);
}
$checksums->add_from_file("$uploadfilesdir/$f", key => $f);
$fields->{'Files'} .= "\n" . $checksums->get_checksum($f, 'md5') .
' ' . $checksums->get_size($f) .
" $file->{section} $file->{priority} $f";
}
$checksums->export_to_control($fields);
# redundant with the Files field
delete $fields->{'Checksums-Md5'};
$fields->{'Source'} = get_source_package();
if ($fields->{'Version'} ne $substvars->get('source:Version')) {
$fields->{'Source'} .= ' (' . $substvars->get('source:Version') . ')';
}
$fields->{'Maintainer'} = $forcemaint if defined($forcemaint);
$fields->{'Changed-By'} = $forcechangedby if defined($forcechangedby);
for my $f (qw(Version Distribution Maintainer Changes)) {
error(_g('missing information for critical output field %s'), $f)
unless defined $fields->{$f};
}
for my $f (qw(Urgency)) {
warning(_g('missing information for output field %s'), $f)
unless defined $fields->{$f};
}
for my $f (keys %override) {
$fields->{$f} = $override{$f};
}
for my $f (keys %remove) {
delete $fields->{$f};
}
# Note: do not perform substitution of variables, one of the reasons is that
# they could interfere with field values, for example the Changes field.
$fields->output(\*STDOUT);
|