noxfile.py

"""Nox sessions."""
import os
import shlex
import shutil
import sys
from pathlib import Path
from textwrap import dedent

import nox

try:
    from nox_poetry import Session
    from nox_poetry import session
except ImportError:
    message = f"""\
    Nox failed to import the 'nox-poetry' package.

    Please install it using the following command:

    {sys.executable} -m pip install nox-poetry"""
    raise SystemExit(dedent(message)) from None

package = "{{ cookiecutter.package_name }}"
python_versions = ["3.8"]
default_python_version = python_versions[0]
nox.needs_version = ">= 2021.6.6"
nox.options.sessions = ("pre-commit",)


def activate_virtualenv_in_precommit_hooks(session: Session) -> None:
    """Activate virtualenv in hooks installed by pre-commit.

    This function patches git hooks installed by pre-commit to activate the
    session's virtual environment. This allows pre-commit to locate hooks in
    that environment when invoked from git.

    Args:
        session: The Session object.
    """
    assert session.bin is not None  # noqa: S101

    # Only patch hooks containing a reference to this session's bindir. Support
    # quoting rules for Python and bash, but strip the outermost quotes so we
    # can detect paths within the bindir, like <bindir>/python.
    bindirs = [
        bindir[1:-1] if bindir[0] in "'\"" else bindir
        for bindir in (repr(session.bin), shlex.quote(session.bin))
    ]

    virtualenv = session.env.get("VIRTUAL_ENV")
    if virtualenv is None:
        return

    headers = {
        # pre-commit < 2.16.0
        "python": f"""\
            import os
            os.environ["VIRTUAL_ENV"] = {virtualenv!r}
            os.environ["PATH"] = os.pathsep.join((
                {session.bin!r},
                os.environ.get("PATH", ""),
            ))
            """,
        # pre-commit >= 2.16.0
        "bash": f"""\
            VIRTUAL_ENV={shlex.quote(virtualenv)}
            PATH={shlex.quote(session.bin)}"{os.pathsep}$PATH"
            """,
    }

    hookdir = Path(".git") / "hooks"
    if not hookdir.is_dir():
        return

    for hook in hookdir.iterdir():
        if hook.name.endswith(".sample") or not hook.is_file():
            continue

        if not hook.read_bytes().startswith(b"#!"):
            continue

        text = hook.read_text()

        if not any(
            Path("A") == Path("a") and bindir.lower() in text.lower() or bindir in text
            for bindir in bindirs
        ):
            continue

        lines = text.splitlines()

        for executable, header in headers.items():
            if executable in lines[0].lower():
                lines.insert(1, dedent(header))
                hook.write_text("\n".join(lines))
                break


@session(name="pre-commit", python=default_python_version, reuse_venv=True)
def precommit(session: Session) -> None:
    """Lint using pre-commit."""
    args = session.posargs or ["run", "--all-files"]
    # args = session.posargs or ["run", "--all-files", "--show-diff-on-failure"]
    session.install(
        "black",
        "darglint",
        "flake8",
        "flake8-bandit",
        "flake8-bugbear",
        "flake8-docstrings",
        "flake8-rst-docstrings",
        "pep8-naming",
        "pre-commit",
        "pre-commit-hooks",
        "reorder-python-imports",
    )
    session.run("pre-commit", *args)
    if args and args[0] == "install":
        activate_virtualenv_in_precommit_hooks(session)


@session(name="build-docs", python=default_python_version, reuse_venv=False)
def build_docs(session: Session) -> None:
    """Build the documentation."""
    args = session.posargs
    session.install(
        "mkdocs-minify-plugin",
        "mkdocs-redirects",
        "mkdocs-material",
        "mkdocs-macros-plugin",
        "mike",
    )

    build_dir = Path("site")
    if build_dir.exists():
        shutil.rmtree(build_dir)

    session.run("mike", *args)


@session(name="release", python=default_python_version, reuse_venv=False)
def release(session: Session) -> None:
    """Build the documentation."""
    args = session.posargs
    session.install("python-semantic-release")

    session.run("semantic-release", "version", *args)