sync_marketplace_to_plugins.py

#!/usr/bin/env python3
"""Sync marketplace.json plugin entries to individual plugin.json files across Claude Code, Codex CLI, and Cursor."""

import json
import sys
from pathlib import Path


def get_edited_file_path():
    """Extract file path from hook input."""
    try:
        input_data = json.load(sys.stdin)
        return input_data.get("tool_input", {}).get("file_path", "")
    except (json.JSONDecodeError, KeyError):
        return ""


def sync_marketplace_to_plugins():
    """Sync marketplace.json entries to individual plugin.json files."""
    edited_path = get_edited_file_path()

    # Only trigger for marketplace.json edits
    if not edited_path.endswith("marketplace.json"):
        return 0

    marketplace_path = Path(edited_path)
    if not marketplace_path.exists():
        return 0

    try:
        marketplace = json.loads(marketplace_path.read_text())
    except (json.JSONDecodeError, OSError) as e:
        print(f"❌ Failed to read marketplace.json: {e}", file=sys.stderr)
        return 2

    plugins = marketplace.get("plugins", [])
    if not plugins:
        return 0

    marketplace_dir = marketplace_path.parent.parent  # Go up from .claude-plugin/
    synced = []

    for plugin in plugins:
        source = plugin.get("source")
        if not source:
            continue

        # Resolve plugin directory relative to marketplace root
        plugin_dir = (marketplace_dir / source).resolve()
        plugin_json_dir = plugin_dir / ".claude-plugin"
        plugin_json_path = plugin_json_dir / "plugin.json"

        # Merge marketplace fields into existing plugin.json (preserve local-only fields)
        plugin_json_dir.mkdir(parents=True, exist_ok=True)

        current_data = {}
        if plugin_json_path.exists():
            try:
                current_data = json.loads(plugin_json_path.read_text())
            except json.JSONDecodeError:
                pass

        plugin_data = dict(current_data)
        plugin_data["name"] = plugin.get("name", "")
        for field in ["version", "description"]:
            if field in plugin:
                plugin_data[field] = plugin[field]

        if current_data != plugin_data:
            plugin_json_path.write_text(json.dumps(plugin_data, indent=2) + "\n")
            synced.append(plugin.get("name", source))

        # Sync to Codex and Cursor manifests (merge, same as Claude)
        for tool_dir in [".codex-plugin", ".cursor-plugin"]:
            tool_json_dir = plugin_dir / tool_dir
            tool_json_path = tool_json_dir / "plugin.json"
            tool_json_dir.mkdir(parents=True, exist_ok=True)
            tool_current = {}
            if tool_json_path.exists():
                try:
                    tool_current = json.loads(tool_json_path.read_text())
                except json.JSONDecodeError:
                    pass
            tool_merged = dict(tool_current)
            tool_merged.update({k: plugin_data[k] for k in ["name", "version", "description"] if k in plugin_data})
            if tool_current != tool_merged:
                tool_json_path.write_text(json.dumps(tool_merged, indent=2) + "\n")

        # Sync gemini-extension.json (minimal: name, version, description)
        gemini_path = plugin_dir / "gemini-extension.json"
        gemini_data = {k: plugin_data[k] for k in ["name", "version", "description"] if k in plugin_data}
        gemini_current = {}
        if gemini_path.exists():
            try:
                gemini_current = json.loads(gemini_path.read_text())
            except json.JSONDecodeError:
                pass
        if gemini_current != gemini_data:
            gemini_path.write_text(json.dumps(gemini_data, indent=2) + "\n")

    if synced:
        print(f"✓ Synced {len(synced)} plugin manifest(s): {', '.join(synced)}")

    return 0


if __name__ == "__main__":
    sys.exit(sync_marketplace_to_plugins())