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# Copyright (c) 2020, Riverbank Computing Limited
# All rights reserved.
#
# This copy of SIP is licensed for use under the terms of the SIP License
# Agreement. See the file LICENSE for more details.
#
# This copy of SIP may also used under the terms of the GNU General Public
# License v2 or v3 as published by the Free Software Foundation which can be
# found in the files LICENSE-GPL2 and LICENSE-GPL3 included in this package.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
from distutils.command.build_ext import build_ext
from distutils.dist import Distribution
from distutils.extension import Extension
from distutils.log import ERROR, INFO, set_threshold
import os
from .buildable import BuildableModule
from .builder import Builder
from .exceptions import UserException
from .installable import Installable
class DistutilsBuilder(Builder):
""" The implementation of a distutils-based project builder. """
def build_executable(self, buildable, *, fatal=True):
""" Build an executable from a BuildableExecutable object and return
the relative pathname of the executable.
"""
raise UserException("DistutilsBuilder cannot build executables")
def build_project(self, target_dir, *, wheel_tag=None):
""" Build the project. """
for buildable in self.project.buildables:
if isinstance(buildable, BuildableModule):
if buildable.static:
raise UserException(
"DistutilsBuilder cannot build static modules")
self._build_extension_module(buildable)
else:
raise UserException(
"DistutilsBuilder cannot build '{0}' buildables".format(
type(buildable).__name__))
def install_project(self, target_dir, *, wheel_tag=None):
""" Install the project into a target directory. """
project = self.project
installed = []
# Install any project-level installables.
for installable in project.installables:
installable.install(target_dir, installed)
# Install any installables from built buildables.
for buildable in project.buildables:
for installable in buildable.installables:
installable.install(target_dir, installed)
if project.distinfo:
from .distinfo import create_distinfo
create_distinfo(project.get_distinfo_dir(target_dir), wheel_tag,
installed, project.metadata, project.get_requires_dists(),
project.root_dir, project.console_scripts,
project.gui_scripts)
def _build_extension_module(self, buildable):
""" Build an extension module from the sources. """
project = self.project
set_threshold(INFO if project.verbose else ERROR)
distribution = Distribution()
module_builder = ExtensionCommand(distribution, buildable)
module_builder.build_lib = buildable.build_dir
module_builder.debug = buildable.debug
if buildable.debug:
# Enable assert().
module_builder.undef = 'NDEBUG'
module_builder.ensure_finalized()
# Convert the #defines.
define_macros = []
for macro in buildable.define_macros:
parts = macro.split('=', maxsplit=1)
name = parts[0]
try:
value = parts[1]
except IndexError:
value = None
define_macros.append((name, value))
buildable.make_names_relative()
module_builder.extensions = [
Extension(buildable.fq_name, buildable.sources,
define_macros=define_macros,
extra_compile_args=buildable.extra_compile_args,
extra_link_args=buildable.extra_link_args,
extra_objects=buildable.extra_objects,
include_dirs=buildable.include_dirs,
libraries=buildable.libraries,
library_dirs=buildable.library_dirs)]
project.progress(
"Compiling the '{0}' module".format(buildable.fq_name))
saved_cwd = os.getcwd()
os.chdir(buildable.build_dir)
try:
module_builder.run()
except Exception as e:
raise UserException(
"Unable to compile the '{0}' module".format(
buildable.fq_name),
detail=str(e))
# Add the extension module to the buildable's list of installables.
installable = Installable('module',
target_subdir=buildable.get_install_subdir())
installable.files.append(
module_builder.get_ext_fullpath(buildable.fq_name))
buildable.installables.append(installable)
os.chdir(saved_cwd)
class ExtensionCommand(build_ext):
""" Extend the distutils command to build an extension module. """
def __init__(self, distribution, buildable):
""" Initialise the object. """
super().__init__(distribution)
self._buildable = buildable
def get_ext_filename(self, ext_name):
""" Reimplemented to handle modules that use the limited API. """
return os.path.join(*ext_name.split('.')) + self._buildable.get_module_extension()
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