@cyanheads/git-mcp-server
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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,
61 lines • 2.74 kB
JavaScript
/**
* @fileoverview Defines the core logic, schemas, and types for the git_reset tool.
* @module src/mcp-server/tools/gitReset/logic
*/
import { execFile } from "child_process";
import { promisify } from "util";
import { z } from "zod";
import { logger, sanitization, } from "../../../utils/index.js";
import { McpError, BaseErrorCode } from "../../../types-global/errors.js";
import { getGitStatus, GitStatusOutputSchema } from "../gitStatus/logic.js";
const execFileAsync = promisify(execFile);
// 1. DEFINE the Zod input schema.
export const GitResetInputSchema = z.object({
path: z.string().default(".").describe("Path to the Git repository."),
mode: z
.enum(["soft", "mixed", "hard", "merge", "keep"])
.default("mixed")
.describe("Reset mode."),
commit: z
.string()
.optional()
.describe("Commit, branch, or ref to reset to. Defaults to HEAD."),
});
// 2. DEFINE the Zod response schema.
export const GitResetOutputSchema = z.object({
success: z.boolean().describe("Indicates if the command was successful."),
message: z.string().describe("A summary message of the result."),
changesSummary: z.string().optional().describe("Summary of changes, if any."),
status: GitStatusOutputSchema.optional().describe("The status of the repository after the reset operation."),
});
/**
* 4. IMPLEMENT the core logic function.
* @throws {McpError} If the logic encounters an unrecoverable issue.
*/
export async function resetGitState(params, context) {
const operation = "resetGitState";
logger.debug(`Executing ${operation}`, { ...context, params });
const workingDir = context.getWorkingDirectory();
if (params.path === "." && !workingDir) {
throw new McpError(BaseErrorCode.VALIDATION_ERROR, "No session working directory set. Please specify a 'path' or use 'git_set_working_dir' first.");
}
const targetPath = sanitization.sanitizePath(params.path === "." ? workingDir : params.path, { allowAbsolute: true }).sanitizedPath;
const args = ["-C", targetPath, "reset"];
args.push(`--${params.mode}`);
if (params.commit)
args.push(params.commit);
logger.debug(`Executing command: git ${args.join(" ")}`, {
...context,
operation,
});
const { stdout, stderr } = await execFileAsync("git", args);
const message = stderr.trim() ||
stdout.trim() ||
`Reset successful (mode: ${params.mode}).`;
const changesSummary = stderr.includes("Unstaged changes after reset")
? stderr
: undefined;
const status = await getGitStatus({ path: targetPath }, context);
return { success: true, message, changesSummary, status };
}
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