git-codereview/build/index.js

An MCP server that allows AI to review your changes before pushing

#!/usr/bin/env node
import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
import { z } from "zod";
import { simpleGit } from "simple-git";
const git = (repoPath) => {
    return simpleGit({
        baseDir: repoPath,
    });
};
// Create server instance
const server = new McpServer({
    name: "git-codereview",
    version: "0.0.1",
});
server.registerTool("get_staged_files", {
    title: "Get Staged Files",
    description: "Retrieve the list of staged files in a git repository",
    inputSchema: {
        repoPath: z.string().describe("Full path to the git repository."),
    },
}, async ({ repoPath }) => {
    try {
        const g = git(repoPath);
        const stagedFiles = await g.diff(['--cached', '--name-only']);
        return {
            content: [
                {
                    type: "text",
                    text: stagedFiles,
                }
            ]
        };
    }
    catch (error) {
        console.error("Error initializing git: ", error);
        throw new Error("Invalid repository path or git not initialized");
    }
});
server.registerTool("get_diff", {
    title: "Get Diff",
    description: "Retrieve the diff of staged files in a git repository",
    inputSchema: {
        repoPath: z.string().describe("Full path to the git repository."),
    },
}, async ({ repoPath }) => {
    try {
        const g = git(repoPath);
        const diff = await g.diff(['--cached', '--diff-filter=AM', '--ignore-space-change']);
        return {
            content: [
                {
                    type: "text",
                    text: diff,
                }
            ]
        };
    }
    catch (error) {
        console.error("Error getting diff: ", error);
        throw new Error("Invalid repository path or git not initialized");
    }
});
server.registerTool("get_file_content", {
    title: "Get File Content",
    description: "Retrieve the content of a file in a git repository. Use it when the diff doesn't provide enough context.",
    inputSchema: {
        repoPath: z.string().describe("Full path to the git repository."),
        filePath: z.string().describe("Relative path to the file within the repository"),
    },
}, async ({ repoPath, filePath }) => {
    try {
        const g = git(repoPath);
        const fileContent = await g.show([`HEAD:${filePath}`]);
        return {
            content: [
                {
                    type: "text",
                    text: fileContent,
                }
            ]
        };
    }
    catch (error) {
        console.error("Error getting file content: ", error);
        throw new Error("Invalid repository path, file path, or git not initialized");
    }
});
async function main() {
    const transport = new StdioServerTransport();
    await server.connect(transport);
    console.error("MCP Server is running on stdio...");
}
main().catch((error) => {
    console.error("Fatal error in main(): ", error);
    process.exit(1);
});