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Krzysztof kuhy Rudnicki
cef9fccab8
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Todo: 9b9342ba
96 lines
3.1 KiB
Python
96 lines
3.1 KiB
Python
"""Rebuild the web bundle when its sources are newer than ``web/dist``.
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``_web_server`` reads ``web/dist`` per request, so a rebuild takes effect
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without restarting anything - but nothing ever triggered one, which meant
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``serve`` could quietly hand the browser a bundle older than the working tree.
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This closes that gap: a stale bundle is rebuilt, and a build that fails stops
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the launch rather than serving the old files under a new-looking process.
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"""
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from __future__ import annotations
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from pathlib import Path
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import shutil
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import subprocess
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from steam_backlog_enforcer.game_install import _echo
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WEB_DIR = (Path(__file__).resolve().parent.parent / "web").resolve()
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_BUILT_MARKER = WEB_DIR / "dist" / "index.html"
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# Everything whose change invalidates the built bundle. Anything under src
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# (pages, styles, scripts) or public (copied verbatim into dist), plus the
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# build configuration itself - an astro/tsconfig edit or a dependency bump
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# changes the output even when not one line of src moved.
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_SOURCE_DIRS = (WEB_DIR / "src", WEB_DIR / "public")
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_SOURCE_FILES = (
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WEB_DIR / "astro.config.mjs",
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WEB_DIR / "package.json",
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WEB_DIR / "pnpm-lock.yaml",
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WEB_DIR / "pnpm-workspace.yaml",
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WEB_DIR / "tsconfig.json",
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)
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_BUILD_TIMEOUT_SECONDS = 600
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_PNPM_MISSING = (
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"pnpm was not found on PATH, so the stale web bundle cannot be rebuilt.\n"
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"A systemd unit or cron job may not see a pnpm installed per user.\n"
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"Either run serve from a normal shell, or build once by hand:\n"
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"cd web && pnpm install && pnpm build"
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)
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def _mtime(path: Path) -> float:
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"""Return the mtime of *path*, or 0.0 when it does not exist."""
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try:
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return path.stat().st_mtime
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except OSError:
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return 0.0
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def frontend_is_stale() -> bool:
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"""Check whether any build input is newer than the built bundle.
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A missing ``dist/index.html`` counts as stale so the first ``serve`` in a
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fresh clone builds instead of serving the "not built" placeholder.
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"""
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built = _mtime(_BUILT_MARKER)
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if built == 0.0:
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return WEB_DIR.is_dir()
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sources = list(_SOURCE_FILES)
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for source_dir in _SOURCE_DIRS:
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if source_dir.is_dir():
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sources.extend(path for path in source_dir.rglob("*") if path.is_file())
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return any(_mtime(path) > built for path in sources)
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def build_frontend() -> bool:
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"""Run ``pnpm build`` in ``web/``.
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Returns:
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True if the bundle was rebuilt, False if the build failed (the
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captured output is printed either way).
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"""
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pnpm = shutil.which("pnpm")
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if pnpm is None:
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_echo(_PNPM_MISSING)
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return False
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_echo("Frontend sources changed - rebuilding web/dist ...", flush=True)
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result = subprocess.run(
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[pnpm, "build"],
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cwd=WEB_DIR,
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capture_output=True,
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text=True,
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timeout=_BUILD_TIMEOUT_SECONDS,
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check=False,
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)
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if result.returncode != 0:
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_echo("Frontend build FAILED - refusing to serve a stale bundle.\n")
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_echo(result.stdout.strip())
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_echo(result.stderr.strip())
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return False
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_echo("Frontend build complete.", flush=True)
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return True
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