mirror of
https://github.com/NixOS/nixpkgs.git
synced 2024-11-19 20:21:14 +00:00
140e352d0a
Upstream loads and installs it dynamically at runtime and as such mentions it in the default_config documentation, but not in the manifest, which we use as the source of truth for generating our component dependencies.
307 lines
11 KiB
Python
Executable file
307 lines
11 KiB
Python
Executable file
#! /usr/bin/env nix-shell
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#! nix-shell -i python3 -p "python3.withPackages (ps: with ps; [ packaging rich ])" -p nodePackages.pyright ruff isort"
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#
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# This script downloads Home Assistant's source tarball.
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# Inside the homeassistant/components directory, each integration has an associated manifest.json,
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# specifying required packages and other integrations it depends on:
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#
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# {
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# "requirements": [ "package==1.2.3" ],
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# "dependencies": [ "component" ]
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# }
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#
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# By parsing the files, a dictionary mapping integrations to requirements and dependencies is created.
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# For all of these requirements and the dependencies' requirements,
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# nixpkgs' python3Packages are searched for appropriate names.
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# Then, a Nix attribute set mapping integration name to dependencies is created.
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import json
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import os
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import pathlib
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import re
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import subprocess
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import sys
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import tarfile
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import tempfile
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from functools import reduce
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from io import BytesIO
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from typing import Any, Dict, List, Optional, Set
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from urllib.request import urlopen
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from packaging import version as Version
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from packaging.version import InvalidVersion
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from rich.console import Console
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from rich.table import Table
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COMPONENT_PREFIX = "homeassistant.components"
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PKG_SET = "home-assistant.python.pkgs"
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# If some requirements are matched by multiple or no Python packages, the
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# following can be used to choose the correct one
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PKG_PREFERENCES = {
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"fiblary3": "fiblary3-fork", # https://github.com/home-assistant/core/issues/66466
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"ha-av": "av",
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"HAP-python": "hap-python",
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"tensorflow": "tensorflow",
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"youtube_dl": "youtube-dl-light",
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}
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# Some dependencies are loaded dynamically at runtime, and are not
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# mentioned in the manifest files.
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EXTRA_COMPONENT_DEPS = {
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"conversation": [
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"intent"
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],
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"default_config": [
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"backup",
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],
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}
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def run_sync(cmd: List[str]) -> None:
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print(f"$ {' '.join(cmd)}")
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process = subprocess.run(cmd)
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if process.returncode != 0:
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sys.exit(1)
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def get_version() -> str:
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with open(os.path.dirname(sys.argv[0]) + "/default.nix") as f:
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# A version consists of digits, dots, and possibly a "b" (for beta)
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if match := re.search('hassVersion = "([\\d\\.b]+)";', f.read()):
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return match.group(1)
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raise RuntimeError("hassVersion not in default.nix")
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def parse_components(version: str = "master"):
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components = {}
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components_with_tests = []
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with tempfile.TemporaryDirectory() as tmp:
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with urlopen(
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f"https://github.com/home-assistant/home-assistant/archive/{version}.tar.gz"
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) as response:
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tarfile.open(fileobj=BytesIO(response.read())).extractall(tmp)
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# Use part of a script from the Home Assistant codebase
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core_path = os.path.join(tmp, f"core-{version}")
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for entry in os.scandir(os.path.join(core_path, "tests/components")):
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if entry.is_dir():
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components_with_tests.append(entry.name)
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sys.path.append(core_path)
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from script.hassfest.model import Integration # type: ignore
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integrations = Integration.load_dir(
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pathlib.Path(
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os.path.join(core_path, "homeassistant/components")
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)
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)
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for domain in sorted(integrations):
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integration = integrations[domain]
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if extra_deps := EXTRA_COMPONENT_DEPS.get(integration.domain):
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integration.dependencies.extend(extra_deps)
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if not integration.disabled:
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components[domain] = integration.manifest
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return components, components_with_tests
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# Recursively get the requirements of a component and its dependencies
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def get_reqs(components: Dict[str, Dict[str, Any]], component: str, processed: Set[str]) -> Set[str]:
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requirements = set(components[component].get("requirements", []))
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deps = components[component].get("dependencies", [])
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deps.extend(components[component].get("after_dependencies", []))
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processed.add(component)
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for dependency in deps:
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if dependency not in processed:
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requirements.update(get_reqs(components, dependency, processed))
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return requirements
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def repository_root() -> str:
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return os.path.abspath(sys.argv[0] + "/../../../..")
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# For a package attribute and and an extra, check if the package exposes it via passthru.optional-dependencies
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def has_extra(package: str, extra: str):
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cmd = [
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"nix-instantiate",
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repository_root(),
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"-A",
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f"{package}.optional-dependencies.{extra}",
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]
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try:
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subprocess.run(
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cmd,
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check=True,
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stdout=subprocess.DEVNULL,
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stderr=subprocess.DEVNULL,
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)
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except subprocess.CalledProcessError:
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return False
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return True
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def dump_packages() -> Dict[str, Dict[str, str]]:
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# Store a JSON dump of Nixpkgs' python3Packages
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output = subprocess.check_output(
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[
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"nix-env",
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"-f",
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repository_root(),
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"-qa",
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"-A",
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PKG_SET,
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"--arg", "config", "{ allowAliases = false; }",
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"--json",
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]
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)
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return json.loads(output)
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def name_to_attr_path(req: str, packages: Dict[str, Dict[str, str]]) -> Optional[str]:
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if req in PKG_PREFERENCES:
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return f"{PKG_SET}.{PKG_PREFERENCES[req]}"
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attr_paths = []
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names = [req]
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# E.g. python-mpd2 is actually called python3.6-mpd2
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# instead of python-3.6-python-mpd2 inside Nixpkgs
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if req.startswith("python-") or req.startswith("python_"):
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names.append(req[len("python-") :])
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for name in names:
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# treat "-" and "_" equally
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name = re.sub("[-_]", "[-_]", name)
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# python(minor).(major)-(pname)-(version or unstable-date)
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# we need the version qualifier, or we'll have multiple matches
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# (e.g. pyserial and pyserial-asyncio when looking for pyserial)
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pattern = re.compile(f"^python\\d+\\.\\d+-{name}-(?:\\d|unstable-.*)", re.I)
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for attr_path, package in packages.items():
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if pattern.match(package["name"]):
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attr_paths.append(attr_path)
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# Let's hope there's only one derivation with a matching name
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assert len(attr_paths) <= 1, f"{req} matches more than one derivation: {attr_paths}"
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if attr_paths:
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return attr_paths[0]
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else:
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return None
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def get_pkg_version(attr_path: str, packages: Dict[str, Dict[str, str]]) -> Optional[str]:
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pkg = packages.get(attr_path, None)
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if not pkg:
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return None
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return pkg["version"]
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def main() -> None:
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packages = dump_packages()
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version = get_version()
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print("Generating component-packages.nix for version {}".format(version))
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components, components_with_tests = parse_components(version=version)
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build_inputs = {}
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outdated = {}
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for component in sorted(components.keys()):
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attr_paths = []
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extra_attrs = []
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missing_reqs = []
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reqs = sorted(get_reqs(components, component, set()))
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for req in reqs:
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# Some requirements are specified by url, e.g. https://example.org/foobar#xyz==1.0.0
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# Therefore, if there's a "#" in the line, only take the part after it
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req = req[req.find("#") + 1 :]
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name, required_version = req.split("==", maxsplit=1)
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# Strip conditions off version constraints e.g. "1.0; python<3.11"
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required_version = required_version.split(";").pop(0)
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# Split package name and extra requires
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extras = []
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if name.endswith("]"):
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extras = name[name.find("[")+1:name.find("]")].split(",")
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name = name[:name.find("[")]
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attr_path = name_to_attr_path(name, packages)
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if attr_path:
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if our_version := get_pkg_version(attr_path, packages):
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attr_name = attr_path.split(".")[-1]
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attr_outdated = False
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try:
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Version.parse(our_version)
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except InvalidVersion:
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print(f"Attribute {attr_name} has invalid version specifier {our_version}", file=sys.stderr)
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attr_outdated = True
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else:
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attr_outdated = Version.parse(our_version) < Version.parse(required_version)
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finally:
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if attr_outdated:
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outdated[attr_name] = {
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'wanted': required_version,
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'current': our_version
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}
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if attr_path is not None:
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# Add attribute path without "python3Packages." prefix
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pname = attr_path[len(PKG_SET + "."):]
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attr_paths.append(pname)
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for extra in extras:
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# Check if package advertises extra requirements
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extra_attr = f"{pname}.optional-dependencies.{extra}"
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if has_extra(attr_path, extra):
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extra_attrs.append(extra_attr)
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else:
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missing_reqs.append(extra_attr)
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else:
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missing_reqs.append(name)
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else:
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build_inputs[component] = (attr_paths, extra_attrs, missing_reqs)
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with open(os.path.dirname(sys.argv[0]) + "/component-packages.nix", "w") as f:
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f.write("# Generated by parse-requirements.py\n")
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f.write("# Do not edit!\n\n")
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f.write("{\n")
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f.write(f' version = "{version}";\n')
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f.write(" components = {\n")
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for component, deps in build_inputs.items():
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available, extras, missing = deps
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f.write(f' "{component}" = ps: with ps; [')
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if available:
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f.write("\n " + "\n ".join(available))
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f.write("\n ]")
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if extras:
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f.write("\n ++ " + "\n ++ ".join(extras))
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f.write(";")
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if len(missing) > 0:
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f.write(f" # missing inputs: {' '.join(missing)}")
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f.write("\n")
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f.write(" };\n")
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f.write(" # components listed in tests/components for which all dependencies are packaged\n")
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f.write(" supportedComponentsWithTests = [\n")
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for component, deps in build_inputs.items():
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available, extras, missing = deps
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if len(missing) == 0 and component in components_with_tests:
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f.write(f' "{component}"' + "\n")
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f.write(" ];\n")
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f.write("}\n")
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supported_components = reduce(lambda n, c: n + (build_inputs[c][2] == []),
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components.keys(), 0)
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total_components = len(components)
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print(f"{supported_components} / {total_components} components supported, "
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f"i.e. {supported_components / total_components:.2%}")
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if outdated:
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table = Table(title="Outdated dependencies")
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table.add_column("Package")
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table.add_column("Current")
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table.add_column("Wanted")
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for package, version in sorted(outdated.items()):
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table.add_row(package, version['current'], version['wanted'])
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console = Console()
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console.print(table)
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if __name__ == "__main__":
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run_sync(["pyright", __file__])
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run_sync(["ruff", "--ignore=E501", __file__])
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run_sync(["isort", __file__])
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main()
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