/usr/share/perl5/Debian/Debhelper/Buildsystem/python_distutils.pm is in debhelper 9.20120115ubuntu3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 | # 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") ? 1 : 0;
}
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 last
# as distutils/setuptools modifies the shebang lines of scripts.
# This ensures that #!/usr/bin/python is installed last 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$python_default\E/, @python_requested) {
@python_requested = (
grep(!/^\Q$python_default\E/, @python_requested),
"python",
);
}
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 $python (@python_dbg, @python_requested) {
if (-x "/usr/bin/".$python) {
# To allow backports of debhelper we don't pass
# --install-layout=deb to 'setup.py install` for
# those Python versions where the option is
# ignored by distutils/setuptools.
if ( $act eq "install" and not
( ($python =~ /^python(?:-dbg)?$/
and $python_default =~ /^python2\.[2345]$/)
or $python =~ /^python2\.[2345](?:-dbg)?$/ )) {
$this->doit_in_sourcedir($python, "setup.py",
$act, @_, "--install-layout=deb");
}
else {
$this->doit_in_sourcedir($python, "setup.py",
$act, @_);
}
}
}
}
sub build {
my $this=shift;
$this->setup_py("build",
"--force",
@_);
}
sub install {
my $this=shift;
my $destdir=shift;
$this->setup_py("install",
"--force",
"--root=$destdir",
"--no-compile",
"-O0",
@_);
}
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', '{}', ';');
}
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