Thales Maciel
a3368056ff
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ci / test-and-build (push) Waiting to run
Implement milestone 2 around a portable X11 release bundle instead of\nkeeping distro packages as the only end-user path.\n\nAdd make/package scripts plus a portable installer helper that builds the\ntarball, creates a user-scoped venv install, manages the user service, handles\nupgrade rollback, and supports uninstall with optional purge.\n\nFlip the end-user docs to the portable bundle, add a dedicated install guide\nand validation matrix, and leave the roadmap milestone open only for the\nremaining manual distro validation evidence.\n\nValidation: python3 -m py_compile src/*.py packaging/portable/portable_installer.py tests/test_portable_bundle.py; PYTHONPATH=src python3 -m unittest tests.test_portable_bundle; PYTHONPATH=src python3 -m unittest tests.test_aman_cli tests.test_diagnostics tests.test_portable_bundle; PYTHONPATH=src python3 -m unittest discover -s tests -p 'test_*.py'
578 lines
20 KiB
Python
Executable file
578 lines
20 KiB
Python
Executable file
#!/usr/bin/env python3
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from __future__ import annotations
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import argparse
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import json
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import os
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import shutil
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import subprocess
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import sys
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import tempfile
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import textwrap
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import time
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from dataclasses import asdict, dataclass
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from datetime import datetime, timezone
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from pathlib import Path
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APP_NAME = "aman"
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INSTALL_KIND = "portable"
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SERVICE_NAME = "aman"
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MANAGED_MARKER = "# managed by aman portable installer"
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SUPPORTED_PYTHON_TAGS = ("cp310", "cp311", "cp312")
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DEFAULT_ARCHITECTURE = "x86_64"
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DEFAULT_SMOKE_CHECK_CODE = textwrap.dedent(
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"""
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import gi
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gi.require_version("Gtk", "3.0")
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gi.require_version("AppIndicator3", "0.1")
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from gi.repository import AppIndicator3, Gtk
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import Xlib
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import sounddevice
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"""
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).strip()
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DEFAULT_RUNTIME_DEPENDENCY_HINT = (
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"Install the documented GTK, AppIndicator, PyGObject, python-xlib, and "
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"PortAudio runtime dependencies for your distro, then rerun install.sh."
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)
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class PortableInstallError(RuntimeError):
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pass
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@dataclass
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class InstallPaths:
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home: Path
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share_root: Path
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current_link: Path
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state_path: Path
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bin_dir: Path
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shim_path: Path
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systemd_dir: Path
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service_path: Path
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config_dir: Path
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cache_dir: Path
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@classmethod
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def detect(cls) -> "InstallPaths":
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home = Path.home()
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share_root = home / ".local" / "share" / APP_NAME
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return cls(
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home=home,
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share_root=share_root,
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current_link=share_root / "current",
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state_path=share_root / "install-state.json",
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bin_dir=home / ".local" / "bin",
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shim_path=home / ".local" / "bin" / APP_NAME,
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systemd_dir=home / ".config" / "systemd" / "user",
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service_path=home / ".config" / "systemd" / "user" / f"{SERVICE_NAME}.service",
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config_dir=home / ".config" / APP_NAME,
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cache_dir=home / ".cache" / APP_NAME,
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)
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def as_serializable(self) -> dict[str, str]:
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return {
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"share_root": str(self.share_root),
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"current_link": str(self.current_link),
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"state_path": str(self.state_path),
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"shim_path": str(self.shim_path),
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"service_path": str(self.service_path),
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"config_dir": str(self.config_dir),
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"cache_dir": str(self.cache_dir),
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}
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@dataclass
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class Manifest:
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app_name: str
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version: str
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architecture: str
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supported_python_tags: list[str]
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wheelhouse_dirs: list[str]
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managed_paths: dict[str, str]
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smoke_check_code: str
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runtime_dependency_hint: str
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bundle_format_version: int = 1
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@classmethod
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def default(cls, version: str) -> "Manifest":
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return cls(
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app_name=APP_NAME,
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version=version,
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architecture=DEFAULT_ARCHITECTURE,
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supported_python_tags=list(SUPPORTED_PYTHON_TAGS),
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wheelhouse_dirs=[
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"wheelhouse/common",
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"wheelhouse/cp310",
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"wheelhouse/cp311",
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"wheelhouse/cp312",
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],
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managed_paths={
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"install_root": "~/.local/share/aman",
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"current_link": "~/.local/share/aman/current",
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"shim": "~/.local/bin/aman",
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"service": "~/.config/systemd/user/aman.service",
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"state": "~/.local/share/aman/install-state.json",
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},
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smoke_check_code=DEFAULT_SMOKE_CHECK_CODE,
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runtime_dependency_hint=DEFAULT_RUNTIME_DEPENDENCY_HINT,
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)
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@dataclass
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class InstallState:
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app_name: str
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install_kind: str
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version: str
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installed_at: str
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service_mode: str
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architecture: str
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supported_python_tags: list[str]
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paths: dict[str, str]
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def _portable_tag() -> str:
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test_override = os.environ.get("AMAN_PORTABLE_TEST_PYTHON_TAG", "").strip()
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if test_override:
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return test_override
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return f"cp{sys.version_info.major}{sys.version_info.minor}"
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def _load_manifest(bundle_dir: Path) -> Manifest:
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manifest_path = bundle_dir / "manifest.json"
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try:
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payload = json.loads(manifest_path.read_text(encoding="utf-8"))
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except FileNotFoundError as exc:
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raise PortableInstallError(f"missing manifest: {manifest_path}") from exc
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except json.JSONDecodeError as exc:
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raise PortableInstallError(f"invalid manifest JSON: {manifest_path}") from exc
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try:
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return Manifest(**payload)
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except TypeError as exc:
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raise PortableInstallError(f"invalid manifest shape: {manifest_path}") from exc
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def _load_state(state_path: Path) -> InstallState | None:
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if not state_path.exists():
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return None
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try:
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payload = json.loads(state_path.read_text(encoding="utf-8"))
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except json.JSONDecodeError as exc:
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raise PortableInstallError(f"invalid install state JSON: {state_path}") from exc
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try:
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return InstallState(**payload)
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except TypeError as exc:
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raise PortableInstallError(f"invalid install state shape: {state_path}") from exc
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def _atomic_write(path: Path, content: str, *, mode: int = 0o644) -> None:
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path.parent.mkdir(parents=True, exist_ok=True)
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with tempfile.NamedTemporaryFile(
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"w",
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encoding="utf-8",
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dir=path.parent,
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prefix=f".{path.name}.tmp-",
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delete=False,
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) as handle:
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handle.write(content)
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tmp_path = Path(handle.name)
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os.chmod(tmp_path, mode)
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os.replace(tmp_path, path)
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def _atomic_symlink(target: Path, link_path: Path) -> None:
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link_path.parent.mkdir(parents=True, exist_ok=True)
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tmp_link = link_path.parent / f".{link_path.name}.tmp-{os.getpid()}"
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try:
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if tmp_link.exists() or tmp_link.is_symlink():
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tmp_link.unlink()
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os.symlink(str(target), tmp_link)
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os.replace(tmp_link, link_path)
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finally:
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if tmp_link.exists() or tmp_link.is_symlink():
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tmp_link.unlink()
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def _read_text_if_exists(path: Path) -> str | None:
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if not path.exists():
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return None
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return path.read_text(encoding="utf-8")
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def _current_target(current_link: Path) -> Path | None:
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if current_link.is_symlink():
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target = os.readlink(current_link)
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target_path = Path(target)
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if not target_path.is_absolute():
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target_path = current_link.parent / target_path
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return target_path
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if current_link.exists():
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return current_link
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return None
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def _is_managed_text(content: str | None) -> bool:
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return bool(content and MANAGED_MARKER in content)
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def _run(
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args: list[str],
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*,
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check: bool = True,
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capture_output: bool = False,
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) -> subprocess.CompletedProcess[str]:
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try:
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return subprocess.run(
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args,
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check=check,
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text=True,
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capture_output=capture_output,
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)
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except subprocess.CalledProcessError as exc:
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details = exc.stderr.strip() or exc.stdout.strip() or str(exc)
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raise PortableInstallError(details) from exc
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def _run_systemctl(args: list[str], *, check: bool = True) -> subprocess.CompletedProcess[str]:
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return _run(["systemctl", "--user", *args], check=check, capture_output=True)
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def _supported_tag_or_raise(manifest: Manifest) -> str:
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if sys.implementation.name != "cpython":
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raise PortableInstallError("portable installer requires CPython 3.10, 3.11, or 3.12")
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tag = _portable_tag()
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if tag not in manifest.supported_python_tags:
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version = f"{sys.version_info.major}.{sys.version_info.minor}"
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raise PortableInstallError(
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f"unsupported python3 version {version}; supported versions are CPython 3.10, 3.11, and 3.12"
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)
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return tag
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def _check_preflight(manifest: Manifest, paths: InstallPaths) -> InstallState | None:
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_supported_tag_or_raise(manifest)
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if shutil.which("systemctl") is None:
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raise PortableInstallError("systemctl is required for the supported user service lifecycle")
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try:
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import venv as _venv # noqa: F401
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except Exception as exc: # pragma: no cover - import failure is environment dependent
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raise PortableInstallError("python3 venv support is required for the portable installer") from exc
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state = _load_state(paths.state_path)
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if state is not None:
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if state.app_name != APP_NAME or state.install_kind != INSTALL_KIND:
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raise PortableInstallError(f"unexpected install state in {paths.state_path}")
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shim_text = _read_text_if_exists(paths.shim_path)
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if shim_text is not None and (state is None or not _is_managed_text(shim_text)):
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raise PortableInstallError(
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f"refusing to overwrite unmanaged shim at {paths.shim_path}; remove it first"
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)
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service_text = _read_text_if_exists(paths.service_path)
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if service_text is not None and (state is None or not _is_managed_text(service_text)):
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raise PortableInstallError(
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f"refusing to overwrite unmanaged service file at {paths.service_path}; remove it first"
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)
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detected_aman = shutil.which(APP_NAME)
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if detected_aman:
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expected_paths = {str(paths.shim_path)}
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current_target = _current_target(paths.current_link)
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if current_target is not None:
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expected_paths.add(str(current_target / "venv" / "bin" / APP_NAME))
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if detected_aman not in expected_paths:
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raise PortableInstallError(
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"detected another Aman install in PATH at "
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f"{detected_aman}; remove that install before using the portable bundle"
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)
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return state
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def _require_bundle_file(path: Path, description: str) -> Path:
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if not path.exists():
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raise PortableInstallError(f"missing {description}: {path}")
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return path
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def _aman_wheel(common_wheelhouse: Path) -> Path:
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wheels = sorted(common_wheelhouse.glob(f"{APP_NAME}-*.whl"))
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if not wheels:
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raise PortableInstallError(f"no Aman wheel found in {common_wheelhouse}")
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return wheels[-1]
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def _render_wrapper(paths: InstallPaths) -> str:
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exec_path = paths.current_link / "venv" / "bin" / APP_NAME
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return textwrap.dedent(
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f"""\
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#!/usr/bin/env bash
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set -euo pipefail
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{MANAGED_MARKER}
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exec "{exec_path}" "$@"
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"""
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)
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def _render_service(template_text: str, paths: InstallPaths) -> str:
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exec_start = (
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f"{paths.current_link / 'venv' / 'bin' / APP_NAME} "
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f"run --config {paths.home / '.config' / APP_NAME / 'config.json'}"
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)
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return template_text.replace("__EXEC_START__", exec_start)
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def _write_state(paths: InstallPaths, manifest: Manifest, version_dir: Path) -> None:
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state = InstallState(
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app_name=APP_NAME,
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install_kind=INSTALL_KIND,
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version=manifest.version,
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installed_at=datetime.now(timezone.utc).isoformat(),
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service_mode="systemd-user",
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architecture=manifest.architecture,
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supported_python_tags=list(manifest.supported_python_tags),
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paths={
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**paths.as_serializable(),
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"version_dir": str(version_dir),
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},
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)
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_atomic_write(paths.state_path, json.dumps(asdict(state), indent=2, sort_keys=True) + "\n")
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def _copy_bundle_support_files(bundle_dir: Path, stage_dir: Path) -> None:
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for name in ("manifest.json", "install.sh", "uninstall.sh", "portable_installer.py"):
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src = _require_bundle_file(bundle_dir / name, name)
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dst = stage_dir / name
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shutil.copy2(src, dst)
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if dst.suffix in {".sh", ".py"}:
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os.chmod(dst, 0o755)
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src_service_dir = _require_bundle_file(bundle_dir / "systemd", "systemd directory")
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dst_service_dir = stage_dir / "systemd"
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if dst_service_dir.exists():
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shutil.rmtree(dst_service_dir)
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shutil.copytree(src_service_dir, dst_service_dir)
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def _run_pip_install(bundle_dir: Path, stage_dir: Path, python_tag: str) -> None:
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common_dir = _require_bundle_file(bundle_dir / "wheelhouse" / "common", "common wheelhouse")
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version_dir = _require_bundle_file(bundle_dir / "wheelhouse" / python_tag, f"{python_tag} wheelhouse")
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aman_wheel = _aman_wheel(common_dir)
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venv_dir = stage_dir / "venv"
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_run([sys.executable, "-m", "venv", "--system-site-packages", str(venv_dir)])
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_run(
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[
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str(venv_dir / "bin" / "python"),
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"-m",
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"pip",
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"install",
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"--no-index",
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"--find-links",
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str(common_dir),
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"--find-links",
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str(version_dir),
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str(aman_wheel),
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]
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)
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def _run_smoke_check(stage_dir: Path, manifest: Manifest) -> None:
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venv_python = stage_dir / "venv" / "bin" / "python"
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try:
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_run([str(venv_python), "-c", manifest.smoke_check_code], capture_output=True)
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except PortableInstallError as exc:
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raise PortableInstallError(
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f"runtime dependency smoke check failed: {exc}\n{manifest.runtime_dependency_hint}"
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) from exc
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def _remove_path(path: Path) -> None:
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if path.is_symlink() or path.is_file():
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path.unlink(missing_ok=True)
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return
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if path.is_dir():
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shutil.rmtree(path, ignore_errors=True)
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def _rollback_install(
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*,
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paths: InstallPaths,
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manifest: Manifest,
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old_state_text: str | None,
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old_service_text: str | None,
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old_shim_text: str | None,
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old_current_target: Path | None,
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new_version_dir: Path,
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backup_dir: Path | None,
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) -> None:
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_remove_path(new_version_dir)
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if backup_dir is not None and backup_dir.exists():
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os.replace(backup_dir, new_version_dir)
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if old_current_target is not None:
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_atomic_symlink(old_current_target, paths.current_link)
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else:
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_remove_path(paths.current_link)
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if old_shim_text is not None:
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_atomic_write(paths.shim_path, old_shim_text, mode=0o755)
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else:
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_remove_path(paths.shim_path)
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if old_service_text is not None:
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_atomic_write(paths.service_path, old_service_text)
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else:
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_remove_path(paths.service_path)
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if old_state_text is not None:
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_atomic_write(paths.state_path, old_state_text)
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else:
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_remove_path(paths.state_path)
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_run_systemctl(["daemon-reload"], check=False)
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if old_current_target is not None and old_service_text is not None:
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_run_systemctl(["enable", "--now", SERVICE_NAME], check=False)
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def _prune_versions(paths: InstallPaths, keep_version: str) -> None:
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for entry in paths.share_root.iterdir():
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if entry.name in {"current", "install-state.json"}:
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continue
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if entry.is_dir() and entry.name != keep_version:
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shutil.rmtree(entry, ignore_errors=True)
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def install_bundle(bundle_dir: Path) -> int:
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manifest = _load_manifest(bundle_dir)
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paths = InstallPaths.detect()
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previous_state = _check_preflight(manifest, paths)
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python_tag = _supported_tag_or_raise(manifest)
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paths.share_root.mkdir(parents=True, exist_ok=True)
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stage_dir = paths.share_root / f".staging-{manifest.version}-{os.getpid()}"
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version_dir = paths.share_root / manifest.version
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backup_dir: Path | None = None
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old_state_text = _read_text_if_exists(paths.state_path)
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old_service_text = _read_text_if_exists(paths.service_path)
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old_shim_text = _read_text_if_exists(paths.shim_path)
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old_current_target = _current_target(paths.current_link)
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service_template_path = _require_bundle_file(
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bundle_dir / "systemd" / f"{SERVICE_NAME}.service.in",
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"service template",
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)
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service_template = service_template_path.read_text(encoding="utf-8")
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cutover_done = False
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if previous_state is not None:
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_run_systemctl(["stop", SERVICE_NAME], check=False)
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_remove_path(stage_dir)
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stage_dir.mkdir(parents=True, exist_ok=True)
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try:
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_run_pip_install(bundle_dir, stage_dir, python_tag)
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_copy_bundle_support_files(bundle_dir, stage_dir)
|
|
_run_smoke_check(stage_dir, manifest)
|
|
|
|
if version_dir.exists():
|
|
backup_dir = paths.share_root / f".rollback-{manifest.version}-{int(time.time())}"
|
|
_remove_path(backup_dir)
|
|
os.replace(version_dir, backup_dir)
|
|
os.replace(stage_dir, version_dir)
|
|
_atomic_symlink(version_dir, paths.current_link)
|
|
_atomic_write(paths.shim_path, _render_wrapper(paths), mode=0o755)
|
|
_atomic_write(paths.service_path, _render_service(service_template, paths))
|
|
_write_state(paths, manifest, version_dir)
|
|
cutover_done = True
|
|
|
|
_run_systemctl(["daemon-reload"])
|
|
_run_systemctl(["enable", "--now", SERVICE_NAME])
|
|
except Exception:
|
|
_remove_path(stage_dir)
|
|
if cutover_done or backup_dir is not None:
|
|
_rollback_install(
|
|
paths=paths,
|
|
manifest=manifest,
|
|
old_state_text=old_state_text,
|
|
old_service_text=old_service_text,
|
|
old_shim_text=old_shim_text,
|
|
old_current_target=old_current_target,
|
|
new_version_dir=version_dir,
|
|
backup_dir=backup_dir,
|
|
)
|
|
else:
|
|
_remove_path(stage_dir)
|
|
raise
|
|
|
|
if backup_dir is not None:
|
|
_remove_path(backup_dir)
|
|
_prune_versions(paths, manifest.version)
|
|
print(f"installed {APP_NAME} {manifest.version} in {version_dir}")
|
|
return 0
|
|
|
|
|
|
def uninstall_bundle(bundle_dir: Path, *, purge: bool) -> int:
|
|
_ = bundle_dir
|
|
paths = InstallPaths.detect()
|
|
state = _load_state(paths.state_path)
|
|
if state is None:
|
|
raise PortableInstallError(f"no portable install state found at {paths.state_path}")
|
|
if state.app_name != APP_NAME or state.install_kind != INSTALL_KIND:
|
|
raise PortableInstallError(f"unexpected install state in {paths.state_path}")
|
|
|
|
shim_text = _read_text_if_exists(paths.shim_path)
|
|
if shim_text is not None and not _is_managed_text(shim_text):
|
|
raise PortableInstallError(f"refusing to remove unmanaged shim at {paths.shim_path}")
|
|
service_text = _read_text_if_exists(paths.service_path)
|
|
if service_text is not None and not _is_managed_text(service_text):
|
|
raise PortableInstallError(f"refusing to remove unmanaged service at {paths.service_path}")
|
|
|
|
_run_systemctl(["disable", "--now", SERVICE_NAME], check=False)
|
|
_remove_path(paths.service_path)
|
|
_run_systemctl(["daemon-reload"], check=False)
|
|
_remove_path(paths.shim_path)
|
|
_remove_path(paths.share_root)
|
|
if purge:
|
|
_remove_path(paths.config_dir)
|
|
_remove_path(paths.cache_dir)
|
|
print(f"uninstalled {APP_NAME} portable bundle")
|
|
return 0
|
|
|
|
|
|
def write_manifest(version: str, output_path: Path) -> int:
|
|
manifest = Manifest.default(version)
|
|
_atomic_write(output_path, json.dumps(asdict(manifest), indent=2, sort_keys=True) + "\n")
|
|
return 0
|
|
|
|
|
|
def _parse_args(argv: list[str]) -> argparse.Namespace:
|
|
parser = argparse.ArgumentParser(description="Aman portable bundle helper")
|
|
subparsers = parser.add_subparsers(dest="command", required=True)
|
|
|
|
install_parser = subparsers.add_parser("install", help="Install or upgrade the portable bundle")
|
|
install_parser.add_argument("--bundle-dir", default=str(Path.cwd()))
|
|
|
|
uninstall_parser = subparsers.add_parser("uninstall", help="Uninstall the portable bundle")
|
|
uninstall_parser.add_argument("--bundle-dir", default=str(Path.cwd()))
|
|
uninstall_parser.add_argument("--purge", action="store_true", help="Remove config and cache too")
|
|
|
|
manifest_parser = subparsers.add_parser("write-manifest", help="Write the portable bundle manifest")
|
|
manifest_parser.add_argument("--version", required=True)
|
|
manifest_parser.add_argument("--output", required=True)
|
|
|
|
return parser.parse_args(argv)
|
|
|
|
|
|
def main(argv: list[str] | None = None) -> int:
|
|
args = _parse_args(argv or sys.argv[1:])
|
|
try:
|
|
if args.command == "install":
|
|
return install_bundle(Path(args.bundle_dir).resolve())
|
|
if args.command == "uninstall":
|
|
return uninstall_bundle(Path(args.bundle_dir).resolve(), purge=args.purge)
|
|
if args.command == "write-manifest":
|
|
return write_manifest(args.version, Path(args.output).resolve())
|
|
except PortableInstallError as exc:
|
|
print(str(exc), file=sys.stderr)
|
|
return 1
|
|
return 1
|
|
|
|
|
|
if __name__ == "__main__":
|
|
raise SystemExit(main())
|