@mseep/git-mcp-server
Version:
An MCP (Model Context Protocol) server enabling LLMs and AI agents to interact with Git repositories. Provides tools for comprehensive Git operations including clone, commit, branch, diff, log, status, push, pull, merge, rebase, worktree, tag management,
87 lines (86 loc) • 4.61 kB
JavaScript
// Import utils from barrel (ErrorHandler from ../utils/internal/errorHandler.js)
import { ErrorHandler } from "../../../utils/index.js";
// Import utils from barrel (logger from ../utils/internal/logger.js)
import { logger } from "../../../utils/index.js";
// Import utils from barrel (requestContextService, RequestContext from ../utils/internal/requestContext.js)
import { BaseErrorCode } from "../../../types-global/errors.js"; // Keep direct import for types-global
import { requestContextService } from "../../../utils/index.js";
import { GitPullInputSchema, pullGitChanges, } from "./logic.js";
let _getWorkingDirectory;
let _getSessionId;
/**
* Initializes the state accessors needed by the tool registration.
* This should be called once during server setup.
* @param getWdFn - Function to get the working directory for a session.
* @param getSidFn - Function to get the session ID from context.
*/
export function initializeGitPullStateAccessors(getWdFn, getSidFn) {
_getWorkingDirectory = getWdFn;
_getSessionId = getSidFn;
logger.info("State accessors initialized for git_pull tool registration.");
}
const TOOL_NAME = "git_pull";
const TOOL_DESCRIPTION = "Fetches from and integrates with another repository or a local branch (e.g., 'git pull origin main'). Supports rebase and fast-forward only options. Returns the pull result as a JSON object.";
/**
* Registers the git_pull tool with the MCP server.
*
* @param {McpServer} server - The MCP server instance.
* @throws {Error} If state accessors are not initialized.
*/
export async function registerGitPullTool(server) {
if (!_getWorkingDirectory || !_getSessionId) {
throw new Error("State accessors for git_pull must be initialized before registration.");
}
const operation = "registerGitPullTool";
const context = requestContextService.createRequestContext({ operation });
await ErrorHandler.tryCatch(async () => {
server.tool(TOOL_NAME, TOOL_DESCRIPTION, GitPullInputSchema.shape, // Provide the Zod schema shape
async (validatedArgs, callContext) => {
const toolOperation = "tool:git_pull";
const requestContext = requestContextService.createRequestContext({
operation: toolOperation,
parentContext: callContext,
});
const sessionId = _getSessionId(requestContext);
const getWorkingDirectoryForSession = () => {
return _getWorkingDirectory(sessionId);
};
const logicContext = {
...requestContext,
sessionId: sessionId,
getWorkingDirectory: getWorkingDirectoryForSession,
};
logger.info(`Executing tool: ${TOOL_NAME}`, logicContext);
return await ErrorHandler.tryCatch(async () => {
// Call the core logic function
const pullResult = await pullGitChanges(validatedArgs, logicContext);
// Format the result as a JSON string within TextContent
const resultContent = {
type: "text",
text: JSON.stringify(pullResult, null, 2), // Pretty-print JSON
contentType: "application/json",
};
// Log based on the success flag in the result
if (pullResult.success) {
logger.info(`Tool ${TOOL_NAME} executed successfully, returning JSON`, logicContext);
}
else {
// Log non-fatal conditions like conflicts or already up-to-date differently
const logMessage = pullResult.conflict
? `Tool ${TOOL_NAME} completed with merge conflicts, returning JSON`
: `Tool ${TOOL_NAME} completed with status: ${pullResult.message}, returning JSON`;
logger.info(logMessage, logicContext);
}
// Even if success is false (e.g., conflicts), it's not necessarily a tool execution *error*
// unless the logic threw an McpError. The success flag in the JSON indicates the Git outcome.
return { content: [resultContent] };
}, {
operation: toolOperation,
context: logicContext,
input: validatedArgs,
errorCode: BaseErrorCode.INTERNAL_ERROR, // Default if unexpected error in logic
});
});
logger.info(`Tool registered: ${TOOL_NAME}`, context);
}, { operation, context, critical: true });
}