"""Build an MCP server package with uv build."""
from __future__ import annotations
import json
from pathlib import Path
from mcp_creator.services.subprocess_runner import run_command
def build_package(project_dir: str) -> str:
"""Build the MCP server package using uv build.
Args:
project_dir: Absolute path to the project root.
Returns:
JSON string with build result and next steps.
"""
project = Path(project_dir).resolve()
if not (project / "pyproject.toml").exists():
return json.dumps({
"success": False,
"error": f"No pyproject.toml found at {project}.",
"next_steps": ["Make sure you're pointing to the right project directory."],
})
result = run_command(["uv", "build"], cwd=project)
if result["success"]:
# Find built files
dist_dir = project / "dist"
built_files = []
if dist_dir.exists():
built_files = [f.name for f in dist_dir.iterdir()]
result["built_files"] = built_files
result["next_steps"] = [
"Build successful!",
f"Built files: {', '.join(built_files)}",
"Next: use publish_package to upload to PyPI, or test locally first.",
]
else:
result["next_steps"] = [
"Build failed. Check the error output above.",
"Common fixes: make sure uv is installed, dependencies are correct, and there are no syntax errors.",
]
return json.dumps(result, indent=2)
