setup.py

"""Setup for lti_consumer XBlock."""

import os
import re

from setuptools import find_packages, setup


def package_data(pkg, roots):
    """Generic function to find package_data.

    All of the files under each of the `roots` will be declared as package
    data for package `pkg`.

    """
    data = []
    for root in roots:
        for dirname, __, files in os.walk(os.path.join(pkg, root)):
            for fname in files:
                data.append(os.path.relpath(os.path.join(dirname, fname), pkg))

    return {pkg: data}


def load_requirements(*requirements_paths):
    """
    Load all requirements from the specified requirements files.

    Requirements will include any constraints from files specified
    with -c in the requirements files.
    Returns a list of requirement strings.
    """
    # UPDATED VIA SEMGREP - if you need to remove/modify this method remove this line and add a comment specifying why.

    requirements = {}
    constraint_files = set()

    # groups "my-package-name<=x.y.z,..." into ("my-package-name", "<=x.y.z,...")
    requirement_line_regex = re.compile(r"([a-zA-Z0-9-_.]+)([<>=][^#\s]+)?")

    def add_version_constraint_or_raise(current_line, current_requirements, add_if_not_present):
        regex_match = requirement_line_regex.match(current_line)
        if regex_match:
            package = regex_match.group(1)
            version_constraints = regex_match.group(2)
            existing_version_constraints = current_requirements.get(package, None)
            # it's fine to add constraints to an unconstrained package, but raise an error if there are already
            # constraints in place
            if existing_version_constraints and existing_version_constraints != version_constraints:
                raise BaseException(f'Multiple constraint definitions found for {package}:'
                                    f' "{existing_version_constraints}" and "{version_constraints}".'
                                    f'Combine constraints into one location with {package}'
                                    f'{existing_version_constraints},{version_constraints}.')
            if add_if_not_present or package in current_requirements:
                current_requirements[package] = version_constraints

    # process .in files and store the path to any constraint files that are pulled in
    for path in requirements_paths:
        with open(path) as reqs:
            for line in reqs:
                if is_requirement(line):
                    add_version_constraint_or_raise(line, requirements, True)
                if line and line.startswith('-c') and not line.startswith('-c http'):
                    constraint_files.add(os.path.dirname(path) + '/' + line.split('#')[0].replace('-c', '').strip())

    # process constraint files and add any new constraints found to existing requirements
    for constraint_file in constraint_files:
        with open(constraint_file) as reader:
            for line in reader:
                if is_requirement(line):
                    add_version_constraint_or_raise(line, requirements, False)

    # process back into list of pkg><=constraints strings
    constrained_requirements = [f'{pkg}{version or ""}' for (pkg, version) in sorted(requirements.items())]
    return constrained_requirements


def is_requirement(line):
    """
    Return True if the requirement line is a package requirement.

    Returns:
        bool: True if the line is not blank, a comment,
        a URL, or an included file
    """
    # UPDATED VIA SEMGREP - if you need to remove/modify this method remove this line and add a comment specifying why

    return line and line.strip() and not line.startswith(('-r', '#', '-e', 'git+', '-c'))


with open('README.rst') as _f:
    long_description = _f.read()


def get_version(file_path):
    """
    Extract the version string from the file at the given relative path fragments.
    """
    filename = os.path.join(os.path.dirname(__file__), file_path)
    with open(filename, encoding='utf-8') as opened_file:
        version_file = opened_file.read()
        version_match = re.search(r"(?m)^__version__ = ['\"]([^'\"]+)['\"]", version_file)
    if version_match:
        return version_match.group(1)
    raise RuntimeError('Unable to find version string.')


VERSION = get_version("lti_consumer/__init__.py")


setup(
    name='lti-consumer-xblock',
    version=VERSION,
    author='Open edX project',
    author_email='oscm@edx.org',
    description='This XBlock implements the consumer side of the LTI specification.',
    long_description=long_description,
    long_description_content_type='text/x-rst',
    packages=find_packages(),
    install_requires=load_requirements('requirements/base.in'),
    dependency_links=[
        'https://github.com/openedx/xblock-utils/tarball/c39bf653e4f27fb3798662ef64cde99f57603f79#egg=xblock-utils',
    ],
    entry_points={
        'xblock.v1': [
            'lti_consumer = lti_consumer.lti_xblock:LtiConsumerXBlock',
        ],
        'lms.djangoapp': [
            "lti_consumer = lti_consumer.apps:LTIConsumerApp",
        ],
        'cms.djangoapp': [
            "lti_consumer = lti_consumer.apps:LTIConsumerApp",
        ]
    },
    package_data=package_data("lti_consumer", ["static", "templates", "public", "translations"]),
    keywords='lti consumer xblock',
    url='https://github.com/openedx/xblock-lti-consumer',
    classifiers=[
        'Development Status :: 5 - Production/Stable',
        'Framework :: Django',
        'Framework :: Django :: 3.2',
        'Framework :: Django :: 4.0',
        'Intended Audience :: Developers',
        'License :: OSI Approved :: GNU Affero General Public License v3',
        'Natural Language :: English',
        "Programming Language :: Python :: 3",
        "Programming Language :: Python :: 3.8",
    ]
)