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# A debhelper build system class for building Python libraries
#
# Copyright: © 2012-2013 Piotr Ożarowski
# TODO:
# * support for dh --parallel
package Debian::Debhelper::Buildsystem::pybuild;
use strict;
use Dpkg::Control;
use Dpkg::Changelog::Debian;
use Debian::Debhelper::Dh_Lib qw(%dh error doit);
use base 'Debian::Debhelper::Buildsystem';
sub DESCRIPTION {
"Python pybuild"
}
sub check_auto_buildable {
my $this=shift;
return doit('pybuild', '--detect', '--really-quiet', '--dir', $this->get_sourcedir());
}
sub new {
my $class=shift;
my $this=$class->SUPER::new(@_);
$this->enforce_in_source_building();
if (!$ENV{'PYBUILD_INTERPRETERS'}) {
if ($ENV{'DEBPYTHON_DEFAULT'}) {
$this->{pydef} = $ENV{'DEBPYTHON_DEFAULT'};}
else {
$this->{pydef} = `pyversions -vd 2>/dev/null`;}
$this->{pydef} =~ s/\s+$//;
if ($ENV{'DEBPYTHON_SUPPORTED'}) {
$this->{pyvers} = $ENV{'DEBPYTHON_SUPPORTED'} =~ s/,/ /r;}
else {
$this->{pyvers} = `pyversions -vr 2>/dev/null`;}
$this->{pyvers} =~ s/\s+$//;
if ($ENV{'DEBPYTHON3_DEFAULT'}) {
$this->{py3def} = $ENV{'DEBPYTHON3_DEFAULT'};}
else {
$this->{py3def} = `py3versions -vd 2>/dev/null`;}
$this->{py3def} =~ s/\s+$//;
if ($ENV{'DEBPYTHON3_SUPPORTED'}) {
$this->{py3vers} = $ENV{'DEBPYTHON3_SUPPORTED'} =~ s/,/ /r;}
else {
$this->{py3vers} = `py3versions -vr 2>/dev/null`;
if ($this->{py3vers} eq "") {
# We swallowed stderr, above
system("py3versions -vr");
die('E: py3versions failed');
}
}
$this->{py3vers} =~ s/\s+$//;
}
return $this;
}
sub configure {
my $this=shift;
foreach my $command ($this->pybuild_commands('configure', @_)) {
doit(@$command);
}
}
sub build {
my $this=shift;
foreach my $command ($this->pybuild_commands('build', @_)) {
doit(@$command);
}
}
sub install {
my $this=shift;
my $destdir=shift;
foreach my $command ($this->pybuild_commands('install', @_)) {
doit(@$command, '--dest-dir', $destdir);
}
}
sub test {
my $this=shift;
foreach my $command ($this->pybuild_commands('test', @_)) {
doit(@$command);
}
}
sub clean {
my $this=shift;
foreach my $command ($this->pybuild_commands('clean', @_)) {
doit(@$command);
}
doit('rm', '-rf', '.pybuild/');
doit('find', '.', '-name', '*.pyc', '-exec', 'rm', '{}', ';');
}
sub pybuild_commands {
my $this=shift;
my $step=shift;
my @options = @_;
my @result;
my $dir = $this->get_sourcedir();
if (not grep {$_ eq '--dir'} @options and $dir ne '.') {
# if --dir is not passed, PYBUILD_DIR can be used
push @options, '--dir', $dir;
}
if (not grep {$_ eq '--verbose'} @options and $dh{QUIET}) {
push @options, '--quiet';
}
my @deps;
if ($ENV{'PYBUILD_INTERPRETERS'}) {
push @result, ['pybuild', "--$step", @options];
}
else {
# get interpreter packages from Build-Depends{,-Indep}:
# NOTE: possible problems with alternative/versioned dependencies
@deps = $this->python_build_dependencies();
# When depends on python{3,}-setuptools-scm, set
# SETUPTOOLS_SCM_PRETEND_VERSION to upstream version
# Without this, setuptools-scm tries to detect current
# version from git tag, which fails for debian tags
# (debian/<version>) sometimes.
if ((grep /python3-(setuptools-scm|hatch-vcs)/, @deps) && !$ENV{'SETUPTOOLS_SCM_PRETEND_VERSION'}) {
my $changelog = Dpkg::Changelog::Debian->new(range => {"count" => 1});
$changelog->load("debian/changelog");
my $version = @{$changelog}[0]->get_version();
$version =~ s/-[^-]+$//; # revision
$version =~ s/^\d+://; # epoch
$version =~ s/~/-/; # ignore tilde versions
$ENV{'SETUPTOOLS_SCM_PRETEND_VERSION'} = $version;
}
# When depends on python{3,}-pbr, set PBR_VERSION to upstream version
# Without this, python-pbr tries to detect current
# version from pkg metadata or git tag, which fails for debian tags
# (debian/<version>) sometimes.
if ((grep /python3-pbr/, @deps) && !$ENV{'PBR_VERSION'}) {
my $changelog = Dpkg::Changelog::Debian->new(range => {"count" => 1});
$changelog->load("debian/changelog");
my $version = @{$changelog}[0]->get_version();
$version =~ s/-[^-]+$//; # revision
$version =~ s/^\d+://; # epoch
$ENV{'PBR_VERSION'} = $version;
}
my @py3opts = ('pybuild', "--$step");
if (($step eq 'test' or $step eq 'autopkgtest') and
$ENV{'PYBUILD_TEST_PYTEST'} ne '1' and
$ENV{'PYBUILD_TEST_NOSE2'} ne '1' and
$ENV{'PYBUILD_TEST_NOSE'} ne '1' and
$ENV{'PYBUILD_TEST_CUSTOM'} ne '1' and
$ENV{'PYBUILD_TEST_TOX'} ne '1') {
if (grep {$_ eq 'tox'} @deps and $ENV{'PYBUILD_TEST_TOX'} ne '0') {
push @py3opts, '--test-tox'}
elsif (grep {$_ eq 'python3-pytest'} @deps and $ENV{'PYBUILD_TEST_PYTEST'} ne '0') {
push @py3opts, '--test-pytest'}
elsif (grep {$_ eq 'python3-nose2'} @deps and $ENV{'PYBUILD_TEST_NOSE2'} ne '0') {
push @py3opts, '--test-nose2'}
elsif (grep {$_ eq 'python3-nose'} @deps and $ENV{'PYBUILD_TEST_NOSE'} ne '0') {
push @py3opts, '--test-nose'}
}
my $py3all = 0;
my $py3alldbg = 0;
my $i = 'python{version}';
# Python 3
if ($this->{py3vers}) {
if (grep {$_ eq 'python3-all' or $_ eq 'python3-all-dev'} @deps) {
$py3all = 1;
push @result, [@py3opts, '-i', $i, '-p', $this->{py3vers}, @options];
}
if (grep {$_ eq 'python3-all-dbg'} @deps) {
$py3alldbg = 1;
push @result, [@py3opts, '-i', "$i-dbg", '-p', $this->{py3vers}, @options];
}
}
if ($this->{py3def}) {
if (not $py3all and grep {$_ eq 'python3' or $_ eq 'python3-dev'} @deps) {
push @result, [@py3opts, '-i', $i, '-p', $this->{py3def}, @options];
}
if (not $py3alldbg and grep {$_ eq 'python3-dbg'} @deps) {
push @result, [@py3opts, '-i', "$i-dbg", '-p', $this->{py3def}, @options];
}
}
# TODO: pythonX.Y → `pybuild -i python{version} -p X.Y`
}
if (!@result) {
use Data::Dumper;
die('E: Please add appropriate interpreter package to Build-Depends, see pybuild(1) for details.' .
'this: ' . Dumper($this) .
'deps: ' . Dumper(\@deps));
}
return @result;
}
sub python_build_dependencies {
my $this=shift;
my @result;
my $c = Dpkg::Control->new(type => CTRL_INFO_SRC);
if ($c->load('debian/control')) {
for my $field (grep /^Build-Depends/, keys %{$c}) {
my $builddeps = $c->{$field};
while ($builddeps =~ /(?:^|[\s,])((pypy|python|tox)[0-9\.]*(-[^\s,\(]+)?)(?:[\s,\(]|$)/g) {
my $dep = $1;
$dep =~ s/:(any|native)$//;
if ($dep) {push @result, $dep};
}
}
}
return @result;
}
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