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67 lines
2.5 KiB
Python
67 lines
2.5 KiB
Python
"""Hatchling build hook that bundles the GeoLibre web app into the wheel.
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The Python package serves the built GeoLibre single-page app from
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``geolibre/static/app``. That directory is produced by the JavaScript build
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(``npm run build:embed``) and is intentionally git-ignored, so it must be
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materialized at build time. This hook runs the embed build when the assets are
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missing (or ``GEOLIBRE_FORCE_JS_BUILD=1`` is set) and the JavaScript sources are
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available next to the package (i.e. building from a checkout of the monorepo).
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"""
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from __future__ import annotations
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import os
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import subprocess
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from pathlib import Path
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from hatchling.builders.hooks.plugin.interface import BuildHookInterface
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PACKAGE_ROOT = Path(__file__).parent
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STATIC_APP = PACKAGE_ROOT / "src" / "geolibre" / "static" / "app"
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# The Python package lives at <repo>/python, so the monorepo root is one level up.
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REPO_ROOT = PACKAGE_ROOT.parent
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BUILD_SCRIPT = REPO_ROOT / "scripts" / "build-embed.mjs"
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class CustomBuildHook(BuildHookInterface):
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"""Build the embedded web app before packaging the wheel/sdist."""
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def initialize(self, version: str, build_data: dict) -> None:
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force = os.environ.get("GEOLIBRE_FORCE_JS_BUILD") == "1"
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have_assets = (STATIC_APP / "index.html").is_file()
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if have_assets and not force:
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return
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if not BUILD_SCRIPT.is_file():
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if have_assets:
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return
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raise RuntimeError(
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"GeoLibre web assets are missing and the JavaScript build "
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f"script was not found at {BUILD_SCRIPT}. Build the wheel from "
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"a full checkout of the GeoLibre monorepo, or run "
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"`npm run build:embed` first."
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)
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self.app.display_info(
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"Building embedded GeoLibre web app (npm run build:embed)..."
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)
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try:
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subprocess.run(
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["npm", "run", "build:embed"],
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cwd=REPO_ROOT,
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check=True,
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timeout=600, # 10 minutes; fail loudly rather than hang pip forever
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)
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except FileNotFoundError as exc:
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raise RuntimeError(
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"npm was not found. Install Node.js and run `npm ci` from the "
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"repository root before building the wheel."
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) from exc
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if not (STATIC_APP / "index.html").is_file():
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raise RuntimeError(
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"The embed build completed but produced no index.html at "
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f"{STATIC_APP}."
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)
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