Pagerite: single-user CMS/blog
FastAPI backend rendering HTML with html5tagger, content persisted in a kanta database and rendered per request. Vue only for the editing tools (page editor over a WebSocket, site/structure editor); public pages are plain HTML with fetch navigation. No auth: single trusted author.
This commit is contained in:
@@ -0,0 +1,19 @@
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# ruff: noqa: INP001
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"""Hatch build hook for building Vue frontend during package build."""
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import sys
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from pathlib import Path
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from hatchling.builders.hooks.plugin.interface import BuildHookInterface
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sys.path.insert(0, str(Path(__file__).parent))
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from buildutil import build
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class CustomBuildHook(BuildHookInterface): # type: ignore[misc]
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"""Hatch build hook that builds Vue frontend during package build."""
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def initialize(self, version: str, build_data: dict) -> None: # type: ignore[override]
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"""Build frontend before package is built."""
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super().initialize(version, build_data)
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build("frontend")
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@@ -0,0 +1,231 @@
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# ruff: noqa: INP001
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"""Utilities used at build time and in devserver script. No dependencies."""
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import logging
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import os
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import re
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import shutil
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import subprocess
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from pathlib import Path
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MIN_NODE_VERSION = 20
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class _PrefixFormatter(logging.Formatter):
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"""Formatter that adds prefix based on log level."""
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def format(self, record: logging.LogRecord) -> str:
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if record.levelno >= logging.WARNING:
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return f"⚠️ {record.getMessage()}"
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return record.getMessage()
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_handler = logging.StreamHandler()
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_handler.setFormatter(_PrefixFormatter())
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logger = logging.getLogger("fastapi-vue")
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logger.addHandler(_handler)
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logger.setLevel(logging.INFO)
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def _check_node_version(node_path: str) -> None:
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"""Check if Node.js version is >= 20.
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Raises RuntimeError if version is too old or cannot be determined.
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"""
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try:
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result = subprocess.run( # noqa: S603
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[node_path, "--version"],
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capture_output=True,
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text=True,
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check=True,
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)
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version_str = result.stdout.strip()
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# Parse version like "v20.10.0" or "v18.17.1"
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match = re.match(r"v(\d+)", version_str)
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if match:
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major_version = int(match.group(1))
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if major_version >= MIN_NODE_VERSION:
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return
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msg = f"Node.js {version_str} found, but v{MIN_NODE_VERSION}+ required"
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raise RuntimeError(msg)
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except subprocess.CalledProcessError, FileNotFoundError, ValueError:
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pass
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msg = "Could not determine Node.js version"
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raise RuntimeError(msg)
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def _validate_npm_runtime(tool: str) -> bool:
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"""Validate npm runtime by checking Node.js version. Returns True if valid."""
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node_path = shutil.which("node", path=str(Path(tool).parent))
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if node_path is None:
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return False
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try:
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_check_node_version(node_path)
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except RuntimeError:
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return False
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return True
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def _find_runtime_from_env(options: list[str]) -> tuple[str, str] | None:
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"""Find runtime specified by JS_RUNTIME environment variable."""
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js_runtime_env = os.environ.get("JS_RUNTIME")
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if not js_runtime_env:
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return None
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js_runtime = js_runtime_env
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js_path = Path(js_runtime)
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runtime_name = js_path.name
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# Map node to npm
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if runtime_name == "node":
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runtime_name = "npm"
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js_runtime = str(js_path.parent / "npm") if js_path.parent.name else "npm"
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for option in options:
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if option != runtime_name and not runtime_name.startswith(option):
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continue
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tool = shutil.which(js_runtime)
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if tool is None:
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msg = f"JS_RUNTIME={js_runtime_env}: {option} not found"
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raise RuntimeError(msg)
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if option == "npm":
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node_path = shutil.which("node", path=str(Path(tool).parent))
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if node_path is None:
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msg = f"JS_RUNTIME={js_runtime_env}: node not found"
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raise RuntimeError(msg)
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_check_node_version(node_path)
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return tool, option
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msg = f"JS_RUNTIME={js_runtime_env} not recognized"
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raise RuntimeError(msg)
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def _auto_detect_runtime(options: list[str]) -> tuple[str, str]:
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"""Auto-detect JavaScript runtime from available options."""
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node_version_error: RuntimeError | None = None
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for option in options:
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tool = shutil.which(option)
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if not tool:
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continue
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if option == "npm" and not _validate_npm_runtime(tool):
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try:
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node_path = shutil.which("node", path=str(Path(tool).parent))
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if node_path:
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_check_node_version(node_path)
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except RuntimeError as e:
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node_version_error = e
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continue
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return tool, option
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if node_version_error:
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raise node_version_error
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msg = "Node.js (v20+), Deno or Bun is required but none was found"
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raise RuntimeError(msg)
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def find_js_runtime() -> tuple[str, str]:
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"""Find a JavaScript runtime from JS_RUNTIME env or auto-detect.
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Returns (tool_path, tool_name) where tool_name is "deno", "npm", or "bun".
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Raises RuntimeError if no suitable runtime is found.
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"""
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options = ["npm", "deno", "bun"]
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# Check for JS_RUNTIME environment variable
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if result := _find_runtime_from_env(options):
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return result
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# Auto-detect
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return _auto_detect_runtime(options)
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def find_build_tool() -> tuple[list[str], list[str]]:
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"""Find JavaScript runtime and construct install/build commands.
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Returns (install_cmd, build_cmd) tuples of command lists.
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Raises RuntimeError if no runtime is found.
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"""
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install = {
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"deno": ("install", "--allow-scripts=npm:vue-demi"),
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"npm": ("install",),
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"bun": ("--bun", "install"),
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}
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# Run vite directly for deno to avoid npm-run-all2/run-p issues
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build = {
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"deno": ("run", "-A", "npm:vite", "build"),
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"npm": ("run", "build"),
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"bun": ("--bun", "run", "build"),
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}
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tool, name = find_js_runtime()
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return [tool, *install[name]], [tool, *build[name]]
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def find_dev_tool() -> list[str]:
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"""Find JavaScript runtime and construct dev command.
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Returns dev_cmd (without vite-specific args).
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Raises RuntimeError if no runtime is found.
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"""
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dev_args = {
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"deno": ("run", "-A", "npm:vite"),
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"npm": ("--silent", "run", "dev", "--"),
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"bun": ("run", "dev", "--"),
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}
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tool, name = find_js_runtime()
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if name == "bun":
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logger.warning(
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"Bun has a WS proxy bug (github.com/oven-sh/bun/issues/9882). Consider npm.",
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)
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return [tool, *dev_args[name]]
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def find_install_tool() -> list[str]:
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"""Find JavaScript runtime and construct install command.
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Returns install_cmd.
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Raises RuntimeError if no runtime is found.
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"""
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install_args = {
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"deno": ("install", "--quiet", "--allow-scripts=npm:vue-demi"),
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"npm": ("install", "--silent"),
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"bun": ("install", "--silent"),
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}
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tool, name = find_js_runtime()
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return [tool, *install_args[name]]
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def build(folder: str = "frontend") -> None:
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"""Build the frontend in the specified folder.
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Raises SystemExit(1) on failure.
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"""
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logger.info(">>> Building %s", folder)
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try:
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install_cmd, build_cmd = find_build_tool()
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except RuntimeError as e:
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logger.warning(e)
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raise SystemExit(1) from None
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def run(cmd: list[str]) -> None:
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display_cmd = [Path(cmd[0]).stem, *cmd[1:]]
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logger.info("### %s", " ".join(display_cmd))
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subprocess.run(cmd, check=True, cwd=folder) # noqa: S603
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try:
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run(install_cmd)
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logger.info("")
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run(build_cmd)
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except subprocess.CalledProcessError:
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raise SystemExit(1) from None
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@@ -0,0 +1,226 @@
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# ruff: noqa: INP001
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"""Utilities meant for devserver script, used only in source repository with dev deps."""
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import asyncio
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import subprocess
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import sys
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from contextlib import suppress
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from pathlib import Path
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from typing import TYPE_CHECKING, Any, Self
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import httpx
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from buildutil import find_dev_tool, find_install_tool, logger
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from fastapi_vue.hostutil import parse_endpoint
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if TYPE_CHECKING:
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from collections.abc import Coroutine
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class ProcessGroup:
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"""Manage async subprocesses with automatic cleanup, like TaskGroup for processes."""
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def __init__(self) -> None:
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"""Initialize empty process tracking."""
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self._procs: list[asyncio.subprocess.Process] = []
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self._cmds: dict[int, str] = {} # pid -> command name
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async def spawn(
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self,
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*cmd: str,
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cwd: str | None = None,
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) -> asyncio.subprocess.Process:
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"""Spawn a subprocess and track it."""
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cmd_name = Path(cmd[0]).stem
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logger.info(">>> %s", " ".join([cmd_name, *cmd[1:]]))
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proc = await asyncio.create_subprocess_exec(*cmd, cwd=cwd)
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self._procs.append(proc)
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self._cmds[proc.pid] = cmd_name
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return proc
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async def wait(
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self,
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*waitables: "asyncio.subprocess.Process | Coroutine[Any, Any, Any]",
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) -> None:
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"""Wait for processes/coroutines to complete, raise SystemExit on failure."""
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async def wait_proc(proc: asyncio.subprocess.Process) -> None:
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returncode = await proc.wait()
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if returncode != 0:
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cmd_name = self._cmds.get(proc.pid, "unknown")
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raise subprocess.CalledProcessError(returncode, cmd_name)
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tasks = [
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wait_proc(w) if isinstance(w, asyncio.subprocess.Process) else w
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for w in waitables
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]
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try:
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await asyncio.gather(*tasks)
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except subprocess.CalledProcessError as e:
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logger.warning("%s failed with exit status %d", e.cmd, e.returncode)
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raise SystemExit(1) from None
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async def __aenter__(self) -> Self:
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"""Enter the async context manager."""
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return self
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async def __aexit__(self, exc_type: type[BaseException] | None, *_: object) -> None:
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"""Wait for one process to exit, terminate others, then wait for all."""
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await self._cleanup(immediate=exc_type is not None)
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async def _cleanup(self, *, immediate: bool = False) -> None:
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running = [p for p in self._procs if p.returncode is None]
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if not running:
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return
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if not immediate:
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# Wait for any one process to exit
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with suppress(asyncio.CancelledError):
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await asyncio.wait(
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[asyncio.create_task(p.wait()) for p in running],
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return_when=asyncio.FIRST_COMPLETED,
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)
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# Terminate remaining processes
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for p in self._procs:
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if p.returncode is None:
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with suppress(ProcessLookupError):
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p.terminate()
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# Wait for all to finish (with overall timeout), shielded from cancellation
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still_running = [p for p in self._procs if p.returncode is None]
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if still_running:
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with suppress(asyncio.CancelledError):
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try:
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await asyncio.shield(
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asyncio.wait_for(
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asyncio.gather(*[p.wait() for p in still_running]),
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timeout=10,
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),
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)
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except TimeoutError:
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for p in self._procs:
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if p.returncode is None:
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with suppress(ProcessLookupError):
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p.kill()
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await p.wait()
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async def check_ports_free(*urls: str) -> None:
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"""Verify URLs are not responding (ports are free). Raise SystemExit if any respond."""
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async def check(client: httpx.AsyncClient, url: str) -> None:
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with suppress(httpx.RequestError):
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res = await client.get(url, timeout=0.1)
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server = res.headers.get("server", "server")
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logger.warning("Conflicting %s already running at %s", server, url)
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raise SystemExit(1)
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async with httpx.AsyncClient() as client:
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await asyncio.gather(*[check(client, url) for url in urls])
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async def ready(url: str, path: str = "", max_attempts: int = 50) -> None:
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"""Wait for the server to be ready by polling an endpoint.
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Use empty path to disable the check and make this return immediately.
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Raises SystemExit(1) if server doesn't start in time.
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"""
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if not path:
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return
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async with httpx.AsyncClient() as client:
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for attempt in range(max_attempts):
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try:
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await client.get(f"{url}{path}", timeout=1.0)
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except httpx.RequestError:
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if attempt == max_attempts - 1:
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logger.warning("Backend didn't start in time")
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raise SystemExit(1) from None
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await asyncio.sleep(0.1)
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else:
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logger.info("✓ Backend ready!")
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return
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def setup_vite(
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endpoint: str,
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default_port: int = 5173,
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) -> tuple[str, list[str], list[str]]:
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"""Parse frontend endpoint and build commands.
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Returns (url, install_cmd, dev_cmd).
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Raises SystemExit(1) on invalid config.
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"""
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endpoints = parse_endpoint(endpoint, default_port)
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if "uds" in endpoints[0]:
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logger.warning("Unix sockets not supported with vite devserver")
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raise SystemExit(1)
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port = endpoints[0]["port"]
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host = endpoints[0]["host"]
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install_cmd = find_install_tool()
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dev_cmd = find_dev_tool()
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if host != "localhost":
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dev_cmd.append("--host" if len(endpoints) > 1 else f"--host={host}")
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dev_cmd.append(f"--port={port}")
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return f"http://{host}:{port}", install_cmd, dev_cmd
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def setup_fastapi(
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endpoint: str,
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module: str,
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default_port: int = 8000,
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) -> tuple[str, list[str]]:
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"""Parse backend endpoint and build uvicorn command.
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Returns (url, uvicorn_cmd).
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Raises SystemExit(1) on invalid config.
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"""
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endpoints = parse_endpoint(endpoint, default_port)
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if "uds" in endpoints[0]:
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logger.warning("Unix sockets not supported with vite devserver")
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raise SystemExit(1)
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host = endpoints[0]["host"]
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port = endpoints[0]["port"]
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reload_dir = module.split(".", maxsplit=1)[0] # Don't reload on frontend changes
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cmd = [
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sys.executable,
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"-m",
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"uvicorn",
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module,
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f"--host={host}",
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f"--port={port}",
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"--reload",
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f"--reload-dir={reload_dir}",
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"--forwarded-allow-ips=*",
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]
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return f"http://{host}:{port}", cmd
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def setup_cli(
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cli: str,
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endpoint: str,
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default_port: int = 8000,
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) -> tuple[str, list[str]]:
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"""Parse backend endpoint and build CLI command.
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Returns (url, cli_cmd).
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Raises SystemExit(1) on invalid config.
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"""
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endpoints = parse_endpoint(endpoint, default_port)
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if "uds" in endpoints[0]:
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logger.warning("Unix sockets not supported with vite devserver")
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raise SystemExit(1)
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host = endpoints[0]["host"]
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port = endpoints[0]["port"]
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cmd = [cli, f"--listen={host}:{port}"]
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return f"http://{host}:{port}", cmd
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Reference in New Issue
Block a user