sub build()

in lib/Debian/Debhelper/Buildsystem/dh_virtualenv.pm [67:110]

• 38 lines of code
• 13 McCabe index (conditional complexity)

sub build {
    my $this = shift;
    my $sourcedir = $this->get_sourcedir();
    my $builddir = $this->get_venv_builddir();
    my @params = ();
    my $reqfile = ('requirements.txt');
    my @pipargs = ();

    if (defined $ENV{DH_VIRTUALENV_ARGUMENTS}) {
        @params = split(' ', $ENV{DH_VIRTUALENV_ARGUMENTS});
    }

    if (defined $ENV{DH_REQUIREMENTS_FILE}) {
        $reqfile = $ENV{DH_REQUIREMENTS_FILE};
    }

    if (defined $ENV{DH_PIP_EXTRA_ARGS}) {
        @pipargs = split(' ', $ENV{DH_PIP_EXTRA_ARGS});
    }

    $this->doit_in_builddir(
        'virtualenv', @params, Cwd::abs_path($builddir));

    my $python = $this->get_python();
    my @pip = $this->get_pip();

    if (defined $ENV{DH_UPGRADE_PIP}) {
        my $version = length $ENV{DH_UPGRADE_PIP} && '=='.$ENV{DH_UPGRADE_PIP} || '';
        $this->doit_in_sourcedir(
            @pip, 'install', '-U', 'pip' . $version, @pipargs);
    }
    if (defined $ENV{DH_UPGRADE_SETUPTOOLS}) {
        my $version = length $ENV{DH_UPGRADE_SETUPTOOLS} && '=='.$ENV{DH_UPGRADE_SETUPTOOLS} || '';
        $this->doit_in_sourcedir(
            @pip, 'install', '-U', 'setuptools' . $version, @pipargs);
    }
    if (defined $ENV{DH_UPGRADE_WHEEL}) {
        my $version = length $ENV{DH_UPGRADE_WHEEL} && '=='.$ENV{DH_UPGRADE_WHEEL} || '';
        $this->doit_in_sourcedir(
            @pip, 'install', '-U', 'wheel' . $version, @pipargs);
    }
    $this->doit_in_sourcedir(
        @pip, 'install', '-r', $reqfile, @pipargs);
}