diff options
Diffstat (limited to 'Debian/Debhelper/Buildsystem/python_distutils.pm')
| -rw-r--r-- | Debian/Debhelper/Buildsystem/python_distutils.pm | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/Debian/Debhelper/Buildsystem/python_distutils.pm b/Debian/Debhelper/Buildsystem/python_distutils.pm new file mode 100644 index 00000000..4838cada --- /dev/null +++ b/Debian/Debhelper/Buildsystem/python_distutils.pm @@ -0,0 +1,177 @@ +# A debhelper build system class for building Python Distutils based +# projects. It prefers out of source tree building. +# +# Copyright: © 2008 Joey Hess +# © 2008-2009 Modestas Vainius +# License: GPL-2+ + +package Debian::Debhelper::Buildsystem::python_distutils; + +use strict; +use Cwd (); +use Debian::Debhelper::Dh_Lib qw(error); +use base 'Debian::Debhelper::Buildsystem'; + +sub DESCRIPTION { + "Python Distutils (setup.py)" +} + +sub DEFAULT_BUILD_DIRECTORY { + my $this=shift; + return $this->canonpath($this->get_sourcepath("build")); +} + +sub new { + my $class=shift; + my $this=$class->SUPER::new(@_); + # Out of source tree building is prefered. + $this->prefer_out_of_source_building(@_); + return $this; +} + +sub check_auto_buildable { + my $this=shift; + return -e $this->get_sourcepath("setup.py"); +} + +sub not_our_cfg { + my $this=shift; + my $ret; + if (open(my $cfg, $this->get_buildpath(".pydistutils.cfg"))) { + $ret = not "# Created by dh_auto\n" eq <$cfg>; + close $cfg; + } + return $ret; +} + +sub create_cfg { + my $this=shift; + if (open(my $cfg, ">", $this->get_buildpath(".pydistutils.cfg"))) { + print $cfg "# Created by dh_auto", "\n"; + print $cfg "[build]\nbuild-base=", $this->get_build_rel2sourcedir(), "\n"; + close $cfg; + return 1; + } + return 0; +} + +sub pre_building_step { + my $this=shift; + my $step=shift; + + return unless grep /$step/, qw(build install clean); + + if ($this->get_buildpath() ne $this->DEFAULT_BUILD_DIRECTORY()) { + # --build-base can only be passed to the build command. However, + # it is always read from the config file (really weird design). + # Therefore create such a cfg config file. + # See http://bugs.python.org/issue818201 + # http://bugs.python.org/issue1011113 + not $this->not_our_cfg() or + error("cannot set custom build directory: .pydistutils.cfg is in use"); + $this->mkdir_builddir(); + $this->create_cfg() or + error("cannot set custom build directory: unwritable .pydistutils.cfg"); + # Distutils reads $HOME/.pydistutils.cfg + $ENV{HOME} = Cwd::abs_path($this->get_buildpath()); + } + + $this->SUPER::pre_building_step($step); +} + +sub dbg_build_needed { + my $this=shift; + my $act=shift; + + # Return a list of python-dbg package which are listed + # in the build-dependencies. This is kinda ugly, but building + # dbg extensions without checking if they're supposed to be + # built may result in various FTBFS if the package is not + # built in a clean chroot. + + my @dbg; + open (CONTROL, 'debian/control') || + error("cannot read debian/control: $!\n"); + foreach my $builddeps (join('', <CONTROL>) =~ + /^Build-Depends[^:]*:.*\n(?:^[^\w\n].*\n)*/gmi) { + while ($builddeps =~ /(python[^, ]*-dbg)/g) { + push @dbg, $1; + } + } + + close CONTROL; + return @dbg; + +} + +sub setup_py { + my $this=shift; + my $act=shift; + + # We need to to run setup.py with the default python first + # as distutils/setuptools modifies the shebang lines of scripts. + # This ensures that #!/usr/bin/python is used and not pythonX.Y + # Take into account that the default Python must not be in + # the requested Python versions. + # Then, run setup.py with each available python, to build + # extensions for each. + + my $python_default = `pyversions -d`; + $python_default =~ s/^\s+//; + $python_default =~ s/\s+$//; + my @python_requested = split ' ', `pyversions -r 2>/dev/null`; + if (grep /^\Q$python_default\E/, @python_requested) { + @python_requested = ("python", grep(!/^\Q$python_default\E/, + @python_requested)); + } + + my @python_dbg; + my @dbg_build_needed = $this->dbg_build_needed(); + foreach my $python (map { $_."-dbg" } @python_requested) { + if (grep /^(python-all-dbg|\Q$python\E)/, @dbg_build_needed) { + push @python_dbg, $python; + } + elsif (($python eq "python-dbg") + and (grep /^\Q$python_default\E/, @dbg_build_needed)) { + push @python_dbg, $python_default."-dbg"; + } + } + + foreach my $python (@python_requested, @python_dbg) { + if (-x "/usr/bin/".$python) { + $this->doit_in_sourcedir($python, "setup.py", $act, @_); + } + } +} + +sub build { + my $this=shift; + $this->setup_py("build", @_); +} + +sub install { + my $this=shift; + my $destdir=shift; + $this->setup_py("install", + "--root=$destdir", + "--no-compile", + "-O0", + "--install-layout=deb", + @_); +} + +sub clean { + my $this=shift; + $this->setup_py("clean", "-a", @_); + + # Config file will remain if it was created by us + if (!$this->not_our_cfg()) { + unlink($this->get_buildpath(".pydistutils.cfg")); + $this->rmdir_builddir(1); # only if empty + } + # The setup.py might import files, leading to python creating pyc + # files. + $this->doit_in_sourcedir('find', '.', '-name', '*.pyc', '-exec', 'rm', '{}', ';'); +} + +1 |