"""Publish an MCP server package to PyPI with uv publish."""
from __future__ import annotations
import json
import os
from pathlib import Path
from mcp_creator.services.subprocess_runner import run_command
def publish_package(project_dir: str, token: str | None = None) -> str:
"""Publish the built package to PyPI using uv publish.
Args:
project_dir: Absolute path to the project root.
token: Optional PyPI API token. If not provided, uses UV_PUBLISH_TOKEN
environment variable.
Returns:
JSON string with publish result and next steps.
"""
project = Path(project_dir).resolve()
dist_dir = project / "dist"
if not dist_dir.exists() or not list(dist_dir.iterdir()):
return json.dumps({
"success": False,
"error": "No dist/ directory or it's empty. Run build_package first.",
"next_steps": ["Use build_package to build the project before publishing."],
})
# Build env with token if provided
env = dict(os.environ)
if token:
env["UV_PUBLISH_TOKEN"] = token
if not token and "UV_PUBLISH_TOKEN" not in env:
return json.dumps({
"success": False,
"error": "No PyPI token found. Set UV_PUBLISH_TOKEN or pass a token.",
"next_steps": [
"Get a PyPI API token at https://pypi.org/manage/account/token/",
"Then either: export UV_PUBLISH_TOKEN=pypi-... or pass it to this tool.",
],
})
result = run_command(["uv", "publish"], cwd=project, env=env)
if result["success"]:
# Try to extract package name from pyproject.toml
pyproject_path = project / "pyproject.toml"
package_name = "your-package"
if pyproject_path.exists():
for line in pyproject_path.read_text().splitlines():
if line.strip().startswith("name"):
package_name = line.split("=")[1].strip().strip('"').strip("'")
break
result["next_steps"] = [
f"Published to PyPI! Install with: pip install {package_name}",
f"View at: https://pypi.org/project/{package_name}/",
"Next: use setup_github to create a GitHub repo and push the code.",
"Then use generate_launchguide to create a LAUNCHGUIDE.md for marketplace submission.",
]
else:
result["next_steps"] = [
"Publish failed. Check the error output.",
"Common issues: invalid token, package name conflict, or network error.",
]
return json.dumps(result, indent=2)
