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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(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'}) {
$this->{pydef} = `pyversions -vd 2>/dev/null`;
$this->{pydef} =~ s/\s+$//;
$this->{pyvers} = `pyversions -vr 2>/dev/null`;
$this->{pyvers} =~ s/\s+$//;
$this->{py3def} = `py3versions -vd 2>/dev/null`;
$this->{py3def} =~ s/\s+$//;
$this->{py3vers} = `py3versions -vr 2>/dev/null`;
$this->{py3vers} =~ s/\s+$//;
$this->{pypydef} = `pypy -c 'from sys import pypy_version_info as i; print("%s.%s" % (i.major, i.minor))' 2>/dev/null`;
$this->{pypydef} =~ s/\s+$//;
}
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', $dir;
}
if ($ENV{'PYBUILD_INTERPRETERS'}) {
push @result, ['pybuild', "--$step", @options];
}
else {
# get interpreter packages from Build-Depends{,-Indep}:
# NOTE: possible problems with alternative/versioned dependencies
my @deps = $this->python_build_dependencies();
# When depends on python{3,}-setuptools-scm, set
# SETUPTOOLS_SCM_PRETEND_VERSION to upstream version
# Without this, setuptools-scm tries to detect current
# version from git tag, which fails for debian tags
# (debian/<version>) sometimes.
if ((grep /(pypy|python[0-9\.]*)-setuptools-scm/, @deps) && !$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
$ENV{'SETUPTOOLS_SCM_PRETEND_VERSION'} = $version;
}
my @py2opts = ('pybuild', "--$step");
my @py3opts = ('pybuild', "--$step");
my @pypyopts = ('pybuild', "--$step");
if ($step == 'test' and $ENV{'PYBUILD_TEST_PYTEST'} ne '1' and
$ENV{'PYBUILD_TEST_NOSE'} ne '1' and
$ENV{'PYBUILD_TEST_TOX'} ne '1') {
if (grep {$_ eq 'python-tox'} @deps and $ENV{'PYBUILD_TEST_TOX'} ne '0') {
push @py2opts, '--test-tox'}
elsif (grep {$_ eq 'python-pytest'} @deps and $ENV{'PYBUILD_TEST_PYTEST'} ne '0') {
push @py2opts, '--test-pytest'}
elsif (grep {$_ eq 'python-nose'} @deps and $ENV{'PYBUILD_TEST_NOSE'} ne '0') {
push @py2opts, '--test-nose'}
if (grep {$_ eq 'python3-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-nose'} @deps and $ENV{'PYBUILD_TEST_NOSE'} ne '0') {
push @py3opts, '--test-nose'}
if (grep {$_ eq 'pypy-tox'} @deps and $ENV{'PYBUILD_TEST_TOX'} ne '0') {
push @pypyopts, '--test-tox'}
elsif (grep {$_ eq 'pypy-pytest'} @deps and $ENV{'PYBUILD_TEST_PYTEST'} ne '0') {
push @pypyopts, '--test-pytest'}
elsif (grep {$_ eq 'pypy-nose'} @deps and $ENV{'PYBUILD_TEST_NOSE'} ne '0') {
push @pypyopts, '--test-nose'}
}
my $pyall = 0;
my $pyalldbg = 0;
my $py3all = 0;
my $py3alldbg = 0;
my $i = 'python{version}';
# Python
if ($this->{pyvers}) {
if (grep {$_ eq 'python-all' or $_ eq 'python-all-dev'} @deps) {
$pyall = 1;
push @result, [@py2opts, '-i', $i, '-p', $this->{pyvers}, @options];
}
if (grep {$_ eq 'python-all-dbg'} @deps) {
$pyalldbg = 1;
push @result, [@py2opts, '-i', "$i-dbg", '-p', $this->{pyvers}, @options];
}
}
if ($this->{pydef}) {
if (not $pyall and grep {$_ eq 'python' or $_ eq 'python-dev'} @deps) {
push @result, [@py2opts, '-i', $i, '-p', $this->{pydef}, @options];
}
if (not $pyalldbg and grep {$_ eq 'python-dbg'} @deps) {
push @result, [@py2opts, '-i', "$i-dbg", '-p', $this->{pydef}, @options];
}
}
# Python 3
if ($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', $this->{py3def}, @options];
}
}
# TODO: pythonX.Y → `pybuild -i python{version} -p X.Y`
# PyPy
if ($this->{pypydef} and grep {$_ eq 'pypy'} @deps) {
push @result, [@pypyopts, '-i', 'pypy', '-p', $this->{pypydef}, @options];
}
}
if (!@result) {
die('E: Please add apropriate interpreter package to Build-Depends, see pybuild(1) for details')
}
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 ($builddeps =~ /(?:^|[\s,])((pypy|python)[0-9\.]*(-[^\s,]+)?)(?:[\s,]|$)/g) {
my $dep = $1;
$dep =~ s/:any$//;
if ($dep) {push @result, $dep};
}
}
}
return @result;
}
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