88 lines
2.6 KiB
Python
88 lines
2.6 KiB
Python
"""Shared utilities for build and dev scripts."""
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import os
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import shutil
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from pathlib import Path
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from sys import stderr
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def find_js_runtime() -> tuple[str, str] | None:
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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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Returns None if no runtime is found.
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"""
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options = ["deno", "npm", "bun"]
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# Check for JS_RUNTIME environment variable
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if js_runtime_env := os.environ.get("JS_RUNTIME"):
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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 or runtime_name.startswith(option):
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tool = shutil.which(js_runtime)
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if tool is None:
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stderr.write(f"┃ ⚠️ JS_RUNTIME={js_runtime_env} not found\n")
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return None
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return tool, option
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stderr.write(f"┃ ⚠️ JS_RUNTIME={js_runtime_env} not recognized\n")
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return None
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# Auto-detect
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for option in options:
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if tool := shutil.which(option):
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return tool, option
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return None
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def find_build_tool():
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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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result = find_js_runtime()
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if result is None:
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raise RuntimeError(
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"Deno, npm or Bun is required for building but none was found"
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)
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tool, name = result
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return [tool, *install[name]], [tool, *build[name]]
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def find_dev_tool():
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"""Find JavaScript runtime and construct dev command.
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Returns (dev_cmd, tool_name) or (None, None) if not found.
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"""
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dev_args = {
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"deno": ("run", "dev", "--"),
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"npm": ("--silent", "run", "dev", "--"),
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"bun": ("run", "dev", "--"),
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}
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result = find_js_runtime()
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if result is None:
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return None, None
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tool, name = result
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return [tool, *dev_args[name]], name
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