1 # A debhelper build system class for building Python Distutils based
2 # projects. It prefers out of source tree building.
4 # Copyright: © 2008 Joey Hess
5 # © 2008-2009 Modestas Vainius
8 package Debian::Debhelper::Buildsystem::python_distutils;
12 use Debian::Debhelper::Dh_Lib qw(error);
13 use base 'Debian::Debhelper::Buildsystem';
16 "Python Distutils (setup.py)"
19 sub DEFAULT_BUILD_DIRECTORY {
21 return $this->canonpath($this->get_sourcepath("build"));
26 my $this=$class->SUPER::new(@_);
27 # Out of source tree building is prefered.
28 $this->prefer_out_of_source_building(@_);
32 sub check_auto_buildable {
34 return -e $this->get_sourcepath("setup.py");
40 if (open(my $cfg, $this->get_buildpath(".pydistutils.cfg"))) {
41 $ret = not "# Created by dh_auto\n" eq <$cfg>;
49 if (open(my $cfg, ">", $this->get_buildpath(".pydistutils.cfg"))) {
50 print $cfg "# Created by dh_auto", "\n";
51 print $cfg "[build]\nbuild-base=", $this->get_build_rel2sourcedir(), "\n";
58 sub pre_building_step {
62 return unless grep /$step/, qw(build install clean);
64 # --build-base can only be passed to the build command. However,
65 # it is always read from the config file (really weird design).
66 # Therefore create such a cfg config file.
67 # See http://bugs.python.org/issue818201
68 # http://bugs.python.org/issue1011113
69 if ($this->get_buildpath() ne $this->DEFAULT_BUILD_DIRECTORY()) {
70 not $this->not_our_cfg() or
71 error("cannot set custom build directory: .pydistutils.cfg is in use");
72 $this->mkdir_builddir();
73 $this->create_cfg() or
74 error("cannot set custom build directory: unwritable .pydistutils.cfg");
75 # Distutils reads $HOME/.pydistutils.cfg
76 $ENV{HOME} = Cwd::abs_path($this->get_buildpath());
79 $this->SUPER::pre_building_step($step);
82 sub dbg_build_needed {
87 open (CONTROL, $this->get_sourcepath('debian/control')) ||
88 error("cannot read debian/control: $!\n");
89 foreach my $builddeps (join('', <CONTROL>) =~ /^Build-Depends[^:]*:.*\n(?:^[^\w\n].*\n)*/gmi) {
90 foreach ($builddeps =~ /(python[^, ]*-dbg)/g) {
104 my $python_default = `pyversions -d`;
105 $python_default =~ s/^\s+//;
106 $python_default =~ s/\s+$//;
107 my $python_requested = split ' ', `pyversions -r 2>/dev/null`;
108 my @dbg_build_needed = $this->dbg_build_needed();
110 # We need to to run setup.py with the default python first
111 # as distutils/setuptools modifies the shebang lines of scripts.
112 # This ensures that #!/usr/bin/python is used and not pythonX.Y
113 if (grep /^$python_default/, $python_requested) {
114 $this->doit_in_sourcedir("python", "setup.py", $act, @_);
116 if (grep /^(python-all-dbg|python-dbg)/, $dbg_build_needed) {
117 $this->doit_in_sourcedir("python-dbg", "setup.py", $act, @_);
119 for my $python (grep !/^$python_default/, $python_requested) {
120 if (-x "/usr/bin/" . $python) {
121 $this->doit_in_sourcedir($python, "setup.py", $act, @_);
123 $python = $python . "-dbg";
124 if (grep /^(python-all-dbg|$python)/, @dbg_build_needed) {
125 $this->doit_in_sourcedir($python, "setup.py", $act, @_);
133 $this->setup_py("build", @_);
139 $this->setup_py("install",
143 "--install-layout=deb",
149 $this->setup_py("clean", "-a", @_);
151 # Config file will remain if it was created by us
152 if (!$this->not_our_cfg()) {
153 unlink($this->get_buildpath(".pydistutils.cfg"));
154 $this->rmdir_builddir(1); # only if empty
156 # The setup.py might import files, leading to python creating pyc
158 $this->doit_in_sourcedir('find', '.', '-name', '*.pyc', '-exec', 'rm', '{}', ';');