120 lines
4 KiB
Python
120 lines
4 KiB
Python
import importlib
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import importlib.metadata
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import logging
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import os
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import subprocess
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import sys
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from pathlib import Path
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import httpx
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LOG = logging.getLogger("package_installer")
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def parse_version(v: str) -> tuple[int, ...]:
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return tuple(int("".join(filter(str.isdigit, part)) or "0") for part in v.strip().split("."))
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class Packages:
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def __init__(self, env: str | None, file: str | None, upgrade: bool = False):
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from_env = env.split() if env else []
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from_file = []
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if file:
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file = Path(file)
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if file.exists() and os.access(str(file), os.R_OK):
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with open(file) as f:
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from_file: list[str] = [pkg.strip() for pkg in f if pkg.strip()]
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self.packages: list[str] = list(set(from_env + from_file))
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self.upgrade = bool(upgrade)
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def has_packages(self) -> bool:
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return len(self.packages) > 0
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def allow_upgrade(self) -> bool:
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return self.upgrade
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class PackageInstaller:
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user_site: Path | None = None
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def __init__(self):
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if base_dir := os.environ.get("YTP_CONFIG_PATH"):
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base_dir = Path(base_dir)
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self.user_site = base_dir / f"python{sys.version_info.major}.{sys.version_info.minor}-packages"
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self.user_site.mkdir(parents=True, exist_ok=True)
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if str(self.user_site) not in sys.path:
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sys.path.insert(0, str(self.user_site))
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def action(self, pkg: str, upgrade: bool = False):
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current_version = self._get_installed_version(pkg)
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if upgrade and current_version:
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latest_version = self._get_latest_version(pkg)
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if latest_version and parse_version(current_version) >= parse_version(latest_version):
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LOG.info(f"'{pkg}' is already the latest version ({current_version}). Skipping upgrade.")
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return
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if current_version:
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LOG.info(f"'{pkg}' is already installed (version: {current_version}). Proceeding with upgrade...")
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else:
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LOG.info(f"'{pkg}' is not installed. Installing...")
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self._install_pkg(pkg)
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def _get_installed_version(self, pkg: str) -> str | None:
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try:
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return importlib.metadata.version(pkg)
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except importlib.metadata.PackageNotFoundError:
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return None
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def _get_latest_version(self, pkg: str) -> str | None:
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url = f"https://pypi.org/pypi/{pkg}/json"
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try:
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with httpx.Client(timeout=5.0) as client:
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resp = client.get(url)
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if 200 == resp.status_code:
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return resp.json()["info"]["version"]
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LOG.warning(f"Failed to fetch '{pkg}' info: HTTP {resp.status_code}")
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except Exception as e:
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LOG.warning(f"Error while querying PyPI for '{pkg}': {e}")
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return None
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def _install_pkg(self, pkg: str):
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subprocess.run(
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[
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sys.executable,
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"-m",
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"pip",
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"install",
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"--upgrade",
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"--disable-pip-version-check",
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"--target",
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str(self.user_site),
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"--no-warn-script-location",
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pkg,
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],
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check=True,
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creationflags=subprocess.CREATE_NO_WINDOW if os.name == "nt" else 0,
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)
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def check(self, pkgs: Packages):
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"""
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Checks for user supplied pip packages and installs them if they are not already installed.
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Args:
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pkgs (GetPackages): the class with packages and their settings.
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"""
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if not pkgs.has_packages() or not self.user_site:
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return
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LOG.info(f"Checking for user pip packages: {', '.join(pkgs.packages)}")
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for package in pkgs.packages:
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try:
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self.action(package, upgrade=pkgs.allow_upgrade())
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except Exception as e:
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LOG.error(f"Failed to install or upgrade package '{package}'. Error message: {e!s}")
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LOG.exception(e)
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