setup.py

# Copyright © 2017-2021 Tom Hacohen <tom@stosb.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, version 3.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.

"""Setup module for etesync-dav."""

import codecs
import re
from os import path

from setuptools import find_packages, setup


def read_file(filepath):
    """Read content from a UTF-8 encoded text file."""
    with codecs.open(filepath, "rb", "utf-8") as file_handle:
        return file_handle.read()


PKG_NAME = "etesync-dav"
PKG_DIR = path.abspath(path.dirname(__file__))
META_PATH = path.join(PKG_DIR, PKG_NAME.replace("-", "_", 1), "__init__.py")
META_CONTENTS = read_file(META_PATH)


def load_long_description():
    """Load long description from file DESCRIPTION.rst."""

    def changes():
        changelog = path.join(PKG_DIR, "ChangeLog.md")
        log = r"(## Version \d+.\d+.\d+\r?\n.*?)## Version"
        result = re.search(log, read_file(changelog), re.S)

        return result.group(1).strip() if result else ""

    try:
        title = f"{PKG_NAME}: {find_meta('description')}"
        head = "=" * (len(title.strip(" .")))

        contents = (
            head,
            format(title.strip(" .")),
            head,
            "",
            read_file(path.join(PKG_DIR, "DESCRIPTION.rst")),
            "" "Release Information",
            "===================\n",
            changes(),
            "",
            f"`Full changelog <{find_meta('url')}/blob/master/ChangeLog.md>`_.",
        )

        return "\n".join(contents)
    except (RuntimeError, FileNotFoundError) as read_error:
        message = "Long description could not be obtained"
        raise RuntimeError(f"{message}: {read_error}") from read_error


def find_meta(meta):
    """Extract __*meta*__ from META_CONTENTS."""
    meta_match = re.search(r"^__{meta}__\s+=\s+['\"]([^'\"]*)['\"]".format(meta=meta), META_CONTENTS, re.M)

    if meta_match:
        return meta_match.group(1)
    raise RuntimeError(f"Unable to find __{meta}__ string in package meta file")


def is_canonical_version(version):
    """Check if a version string is in the canonical format of PEP 440."""
    pattern = (
        r"^([1-9][0-9]*!)?(0|[1-9][0-9]*)(\.(0|[1-9][0-9]*))"
        r"*((a|b|rc)(0|[1-9][0-9]*))?(\.post(0|[1-9][0-9]*))"
        r"?(\.dev(0|[1-9][0-9]*))?$"
    )
    return re.match(pattern, version) is not None


def get_version_string():
    """Return package version as listed in `__version__` in meta file."""
    # Parse version string
    version_string = find_meta("version")

    # Check validity
    if not is_canonical_version(version_string):
        message = 'The detected version string "{}" is not in canonical ' "format as defined in PEP 440.".format(
            version_string
        )
        raise ValueError(message)

    return version_string


# Dependencies that are downloaded by pip on installation and why.
INSTALL_REQUIRES = [
    "appdirs>=1.4.3",
    "etesync>=0.12.1",
    "etebase>=0.30.0",
    "msgpack>=1.0.0",
    "Radicale>=3.0.3,<3.2.0",
    "Flask>=1.1.1",
    "Flask-WTF>=0.14.2,<1.0.0",
    "requests[socks]>=2.21",
    'pyobjc-framework-Cocoa>=7.0.0 ; sys_platform=="darwin"',
]

KEYWORDS = ["etesync", "encryption", "sync", "pim", "caldav", "carddav"]

# Project's URLs
PROJECT_URLS = {
    "Documentation": f"{find_meta('url')}/blob/master/README.md#installation",
    "Changelog": f"{find_meta('url')}/blob/master/ChangeLog.md",
    "Bug Tracker": f"{find_meta('url')}/issues",
    "Source Code": find_meta("url"),
}

if __name__ == "__main__":
    setup(
        name=PKG_NAME,
        version=get_version_string(),
        author=find_meta("author"),
        author_email=find_meta("author_email"),
        license=find_meta("license"),
        description=find_meta("description"),
        long_description=load_long_description(),
        long_description_content_type="text/x-rst",
        keywords=KEYWORDS,
        url=find_meta("url"),
        project_urls=PROJECT_URLS,
        packages=find_packages(exclude=["tests"]),
        platforms="any",
        include_package_data=True,
        zip_safe=False,
        python_requires=">=3",
        install_requires=INSTALL_REQUIRES,
        scripts=[
            "scripts/etesync-dav",
        ],
    )